Known Faults Database

Mercedes-Benz C-Class problems, reliability and years to avoid

If you are considering buying a used Mercedes-Benz C-Class, these are the common problems worth knowing about first. Our garage database tracks 23 known faults for this model, 15 of them rated high severity. Every one below is a repair bill a seller has good reason not to mention.

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Is the Mercedes-Benz C-Class reliable?

The Mercedes-Benz C-Class has 23 known faults in our database across 2 generations, 15 of them rated high severity. The most serious are fuel system (piezo Delphi fuel injector failure leading to limp mode and severe misfires) and engine (oil cooler seals fail in the 'V' of the engine causing massive oil leaks). None of them makes the car a bad buy on its own; the risk is a seller who knows and says nothing.

That is a count of the faults we hold, not a reliability score. Popular cars get written about more, and a newer generation has had less time to show its faults.

Which Mercedes-Benz C-Class years should you avoid?

No year is a write-off on its own. What matters is which serious faults a given year and engine can have, and whether the car in front of you has had them fixed.

W202, 1993 to 20086 high severity

10 known faults, the serious ones in the engine, gearbox

W204 / C-Class, 2007 to 20149 high severity

13 known faults, the serious ones in the fuel system, engine, electrics, brakes, gearbox, suspension

Years and engines with a serious known fault

2009 to 2012, 2.1 CDI (OM651): piezo Delphi fuel injector failure leading to limp mode and severe misfires
2005 to 2014, 3.0 V6 CDI (OM642): oil cooler seals fail in the 'V' of the engine causing massive oil leaks
2004 to 2008, V6 petrol (M272: C 230/280/350, E 280/350, SLK 280/300/350, ML 350) / V8 petrol (M273: E 500 from 2006 and ML 500 from the 2008 model year; not fitted to the SLK, whose SLK 55 AMG uses the M113): soft metal on the timing chain sprocket that drives the balance shaft
2002 to 2013, 1.8 Kompressor / CGI Petrol (M271): single-row timing chain stretches and jumps teeth, destroying the valves
1993 to 2000, Four-cylinder petrol engines: cylinder head stretch bolts failing on four-cylinder engines
1993 to 2000, Diesel engines (e.g., C250TD): glow plugs can fail and then break during removal

Each one is set out in full below, with the symptoms, the typical mileage and a rough repair cost.

Generation 1 of 210 known faults · 9 owner reports · 11 good notes

Mercedes-Benz C-Class W202 (1993 to 2008) problems

Engine/EmissionsHigh severity📝 Editorial

Soft metal on the timing chain sprocket that drives the balance shaft on the M272 V6 (and the matching idler gear on the M273 V8) wears away, the camshaft timing drifts and eventually the engine timing is destroyed. It was covered by a manufacturer technical bulletin. One owner paid 2,000 pounds for a balance shaft on a 2005 CLK 350, and another car needed a timing repair and then a balance shaft within months.

Rough guide

£2000-4000

Typical symptoms

Engine Management Light (EML) on
fault codes P0016 / P0017 (camshaft timing)
rough running or misfiring

Affected vehicles

Engines:: V6 petrol (M272: C 230/280/350, E 280/350, SLK 280/300/350, ML 350) / V8 petrol (M273: E 500 from 2006 and ML 500 from the 2008 model year; not fitted to the SLK, whose SLK 55 AMG uses the M113)
Typical mileage:: 60000-90000 miles

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Engine/EmissionsHigh severity📝 Editorial

Single-row timing chain stretches and jumps teeth, destroying the valves

Rough guide

£1500-2500

Typical symptoms

loud metallic rattle on startup for 3-5 seconds
engine management light
loss of compression and non-start

Affected vehicles

Engines:: 1.8 Kompressor / CGI Petrol (M271)
Typical mileage:: 60000-90000 miles

7 more owner reports back this up

October 2019The timing chain failed on a 2010 C250CGI petrol at 80,000 miles due to worn guides and sprockets, costing £2,195 plus VAT.
July 2018A 2011 W204 C180 CGI with 70,000 miles and full service history experienced a timing chain failure.
November 2016A 2010 C180 CGI estate with 45,000 miles required a software update and replacement of the timing chain and tensioners for £3,000.
July 2016A 2010 C180 automatic estate had an imminent timing chain failure reported during a 50,000-mile service, costing around £2,000.
May 2016A 2005 C180K coupe experienced a timing chain failure, with Mercedes-Benz contributing to labour costs for a £5,000 repair.
August 2015A 2010 C180 with 42,000 miles experienced premature stretching of the timing chain, which was not resolved by replacing the tensioner.
June 2014A 2006 C180K had a timing chain failure, costing £1,300 to replace, but the engine still ran unevenly.

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Engine/EmissionsMedium severity📝 Editorial

Premature failure of the catalytic converter, leading to an expensive repair bill.

Rough guide

£800

Typical symptoms

Engine warning light illuminated
Reduced engine performance
Failed MOT emissions test

Affected vehicles

Engines:: C180 / C200 / C220 Petrol
Typical mileage:: Unknown miles

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Engine/EmissionsHigh severity📝 Editorial

Cylinder head stretch bolts failing on four-cylinder engines, requiring a 'head-off' replacement. Oil leaks from the cylinder head are a common symptom.

Rough guide

£1000-2000

Typical symptoms

Oil leaks from the cylinder head
Overheating engine
Loss of coolant
White smoke from exhaust

Affected vehicles

Engines:: Four-cylinder petrol engines
Typical mileage:: Unknown miles

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Engine/EmissionsHigh severity📝 Editorial

Glow plugs can fail and then break during removal, leading to extremely high repair costs due to extensive dismantling required. This is a known issue, especially if the car is a poor starter.

Rough guide

£300-4500

Typical symptoms

Poor starting, especially in cold weather
Engine misfires on startup
Engine warning light

Affected vehicles

Engines:: Diesel engines (e.g., C250TD)
Typical mileage:: 50000 miles

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OtherMedium severity📝 Editorial

Severe rusting, particularly around rear wheel arches, body seams, screen surrounds, and boot lids. Lower front suspension control arms can also rust through from the inside out due to design flaws.

Rough guide

£500-2000

Typical symptoms

Visible rust spots or bubbling paint on bodywork
Perforation around wheel arches
Rust on suspension components
Rust on boot lid, especially near drainage holes

Affected vehicles

Engines:: All
Typical mileage:: 70000-100000 miles

2 more owner reports back this up

February 2018The front suspension arm of a 2004 C180 Kompressor rusted through, causing the suspension to collapse.
September 2016The rear suspension trailing arms of a 2004 C-Class rusted through and collapsed while driving.

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ElectricalMedium severity📝 Editorial

The mechanism of the single-arm wiper requires frequent greasing and is not typically included in normal Mercedes service schedules. Failure can lead to an expensive replacement.

Rough guide

£800

Typical symptoms

Wiper arm slowing down or sticking
Wiper not moving smoothly across the windscreen
Wiper mechanism making unusual noises

Affected vehicles

Engines:: All
Typical mileage:: Unknown miles

1 more owner report backs this up

December 2011The single-arm wiper on a W202 C-Class may slow down, requiring lubrication of the mechanism with graphite oil.

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Fuel SystemMedium severity📝 Editorial

Failure of injector seals, allowing fuel/air mixture to escape and deposit carbon on top of the engine, known as 'black death'. If not caught early, rectification can be costly.

Rough guide

£500

Typical symptoms

Smell of neat fuel (like paraffin) in the cabin
Chuffing sound from the top of the affected cylinder
Visible carbon build-up around injectors

Affected vehicles

Engines:: Diesel engines (C-Class; V-Class V220 CDI 2.2, OM611, 1999-2003)
Typical mileage:: Unknown miles

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Transmission/ClutchHigh severity📝 Editorial

Transmission oil cooler, sited within the radiator matrix, can fail and allow coolant to enter the automatic transmission fluid, leading to catastrophic transmission destruction. This fault affects cars manufactured between 2000-2003 only when a Valeo radiator is fitted.

Rough guide

£4000+

Typical symptoms

Harsh or erratic gear changes
Transmission slipping
Transmission warning light
Coolant level dropping without visible leaks

Affected vehicles

Engines:: Automatic transmission with Valeo radiator
Typical mileage:: Unknown miles

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Engine/EmissionsHigh severity📝 Editorial

Valve problems due to faulty engine design allowing carbon build-up in valve guides and under valves. If left unfixed, valves may burn out, potentially requiring cylinder head replacement. Symptoms include misfiring, high fuel consumption, and 'check engine' light. This is a separate problem from the single-row timing chain stretch on the same M271 engine, and a car can have had one without the other, so chain work on the invoices is not evidence that the valves are clear.

Rough guide

£1900-4000+

Typical symptoms

Engine misfiring
High fuel consumption
Check engine light illuminated
Vehicle entering 'limp home' mode

Affected vehicles

Engines:: M271 1.8 four-cylinder petrol engines
Typical mileage:: Unknown miles

1 more owner report backs this up

February 2012At 200,000 miles, valves may not seat correctly, requiring modified valve springs, a £1,900 repair at a main dealer.

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What owners report on the W202

9 single reports, unconfirmed

One owner each, in their own words rewritten as a line, and not counted in our risk scoring. A fault joins the list above once a second report or an editorial source backs it.

Brakes · October 2017An illuminated ABS and ESC warning light on the dashboard could be caused by a defective brake pedal switch.
Gearbox and clutch · May 2017A 2006 C180K automatic with full service history intermittently failed to shift into Drive.
Gearbox and clutch · May 2017A 2005 C220CDI automatic intermittently locked up, not shifting out of first gear, due to a defective Shift Selector Module.
Engine · October 2016A 2004 C200 automatic experienced rough running at low engine speeds between 40 and 50 mph.
Brakes · October 2013The Sensotronic Brake Control pump on a 2004 C220 CDI failed at 130,000 miles, triggering a dashboard warning; the repair cost was £880 after a goodwill contribution.
Exhaust · October 2012C180K models can suffer catalytic converter problems, with repair bills potentially reaching £4,000.
Engine · December 2011Turbocharger failure occurred on a C220CDI after approximately six years, despite regular oil changes.
Engine · November 2011Supercharger failures were reported on 180K and 200K engines after five to six years, even with annual oil changes.
Engine · August 2011A 2006 C320CDI experienced diesel fuel leaks, engine oil forced out, alternator failure, and a cracked manifold.

What owners like about the W202

11 notes

The galvanised body of this model originally came with a 30-year conditional warranty against corrosion.
Cars from 1998 and 1999 achieved 11th place in a 2001 customer satisfaction survey.
Mercedes-Benz was rated as Britain's second most claim-free used car brand by Motor Warranty Direct.
This model recorded a very low death rate of 2 out of 9 points from accidents.
This model achieved an excellent score of 31 points in the 2001 Euro NCAP crash safety tests.
The model ranked joint second in a 2002 Which? reliability survey, with 99% of 107 cars surveyed being fault-free.
The exhaust system of a 2006 C180 Kompressor estate lasted 245,000 miles before the catalytic converter casing cracked.
The C-Class was a Which? used best buy in 2004 for cars in the £10,000 to £15,000 price range.
This model ranked joint second in a 2002 Which? reliability survey, with 99% of 107 cars surveyed being fault-free.
Mercedes-Benz generally had the ninth lowest average warranty repair costs in the 2003 Warranty Direct Reliability index.
Revisions led to the C-Class range achieving an excellent five-star Euro NCAP award in 2002 tests.

Generation 2 of 213 known faults · 49 owner reports · 17 good notes

Mercedes-Benz C-Class W204 / C-Class (2007 to 2014) problems

Fuel SystemHigh severity📝 Editorial

Piezo Delphi fuel injector failure leading to limp mode and severe misfires

Rough guide

£800-2000

Typical symptoms

engine management light
sudden limp mode
severe juddering and misfire

Affected vehicles

Engines:: 2.1 CDI (OM651)
Typical mileage:: 40000-80000 miles

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Engine/EmissionsHigh severity📝 Editorial

Oil cooler seals fail in the 'V' of the engine causing massive oil leaks

Rough guide

£800-1500

Typical symptoms

oil pooling in the engine valley
oil leaking down the back of the engine onto the undertray
burning oil smell in the cabin

Affected vehicles

Engines:: 3.0 V6 CDI (OM642)
Typical mileage:: 60000-100000 miles

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SteeringMedium severity📝 Editorial

The front tyres crab, skip or judder across the road surface at low speed on full or near-full lock, with a loud clunk that owners liken to hitting a kerb, and the outer edges of the front tyres wear fast. It is a steering geometry trait of right-hand-drive cars on large wheels, reported on the GLC and GLC Coupe from new and on the C43 AMG, and it is worse in cold weather. Mercedes at first said it was normal for the model, then offered GLC owners all-season tyres free of charge, and later offered replacement steering knuckles on right-hand-drive GLCs, though one owner was told the knuckle fix was not available for the GLC 43 or GLC 63 AMG. An ombudsman ruled that one owner was entitled to reject a GLC Coupe over it, although the dealer refused to take it back.

Typical symptoms

loud clunking or skipping from the front wheels on full lock when parking
front end hopping on tight roundabouts or when reversing on lock
outer edges of the front tyres worn well before the centre

Affected vehicles

Engines:: All (particularly AMG Line and 4Matic)
Typical mileage:: 0-50000 miles

8 more owner reports back this up

January 2020The front wheels of an April 2019 C43 AMG were skipping badly and making a loud noise when manoeuvring at low speed.
October 2019The front wheels of a C43 4-Matic were reported to be 'skipping' during low-speed manoeuvres.
April 2019A 2017 C43 AMG 4-Matic experienced front tyre clunking on full lock, with a replacement steering knuckle joint suggested as a fix.
November 2017A 2016 C43 AMG experienced full lock tyre judder, with the owner considering switching to cold weather tyres.
March 2017A 2016 C43 AMG experienced its tyres chuntering on lock, which Mercedes-Benz stated was a characteristic of the car.
March 2017A new C43 AMG experienced tyre chuntering, with the owner unaware of an offer to replace tyres with all-weather versions.
January 2017Tyres on a C43 were reported to be folding over on full steering lock.
January 2017A C43 AMG experienced crabbing on limited lock, suggesting a potential problem with the 4Matic centre differential.

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Fuel SystemHigh severity📝 Editorial

The Delphi piezo injectors crack, bringing on the engine malfunction light, limp mode and a heavy misfire, and replacement injectors were so scarce that cars sat off the road for long spells. A TSB covers replacing them where an owner complains of the malfunction light. It is the Delphi piezo injector that fails, fitted from the engine's launch until Mercedes moved the OM651 over to Bosch solenoid injectors across 2012 and 2013, so a 2013 car may carry either type and a 2014 one will not have piezo injectors from new.

Rough guide

£1500-2500

Typical symptoms

Engine malfunction light illuminated
Engine entering limp mode
Severe misfires or rough running
Loss of power

Affected vehicles

Engines:: OM651 2.1 CDI with Delphi piezo injectors (220 CDI / 250 CDI BlueEfficiency)
Typical mileage:: 40000-80000 miles

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Engine/EmissionsHigh severity📝 Editorial

Premature wear of the timing chain sprocket for the balancer shaft on the M272 V6 petrol engine, needing a major engine-out repair, with a Mercedes-Benz Star bulletin about it. It is the engine build that decides this, not the registration year: the soft sprocket went into M272 engines up to serial number 2729..30 468993, and engines after that number have the revised part. That affected run ends in 2007 or 2008 depending on the source, so on the C-Class it reaches only the earliest W204 V6s. From the 2011 facelift the C-Class V6 is an M276, which cannot have this fault at all.

Rough guide

£4000

Typical symptoms

Engine warning light
Rough running or misfires
Metallic rattling noise from engine
Diagnostic codes related to camshaft timing

Affected vehicles

Engines:: M272 V6 petrol (C230 / C280 / C300 / C350)
Typical mileage:: 60000-90000 miles

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OtherMedium severity📝 Editorial

Plastic interior door handles, particularly the driver's side, are prone to breaking as they are an integral part of the door panel and not available separately, leading to high replacement costs. Mercedes-Benz has offered goodwill in Germany but less so in the UK.

Rough guide

£374-500

Typical symptoms

Broken or loose interior door handle
Difficulty opening the door from the inside

Affected vehicles

Engines:: All
Typical mileage:: Unknown miles

1 more owner report backs this up

August 2017The interior door handle broke on a 2010 W204 C-Class, with repair quotes ranging from €545.53 to £434.40 plus fitting.

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SecurityHigh severity📝 Editorial

Failure of the electronic steering lock (ESL) or ignition switch, which can completely immobilise the car. This is a common and expensive repair, often requiring recovery to a Mercedes-Benz garage and parts from Germany.

Rough guide

£520-1034

Typical symptoms

Car fails to start
Steering wheel remains locked
Ignition switch unresponsive
Car completely immobilised

Affected vehicles

Engines:: All
Typical mileage:: 38000-42000 miles

3 more owner reports back this up

September 2018A 2008 W204 C180 suffered a steering lock/ignition switch failure, immobilising the car and costing £1,034.40 for repair and recovery.
August 2017A W204 C-Class had a failed steering lock, with the owner billed £700 for its replacement.
June 2015A 2011 C220 with 38,000 miles had a failed steering lock, costing £520.80 to replace.

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OtherMedium severity📝 Editorial

Problems with 'Fire Opal Red' metallic paint, including white blotches, microblistering, and lacquer clearcoat peeling. This is a known issue affecting multiple Mercedes-Benz models, with some owners reporting multiple resprays.

Rough guide

£1000-3000+

Typical symptoms

White blotches or discolouration on red paintwork
Raised pimples or microblistering under the lacquer
Peeling clearcoat, especially on horizontal surfaces like the boot lid or roof

Affected vehicles

Engines:: All (Fire Opal Red metallic paint)
Typical mileage:: Unknown miles

5 more owner reports back this up

April 2019The lacquer clearcoat peeled from the boot lid of a Fire Opal metallic red W204 C250, and the issue spread to other panels.
March 2019A 2013 S204 C-Class estate in Fire Opal metallic red paint developed microblistering over most of its bodywork.
November 2018A 2012 C220 in Fire Opal Red metallic paint developed recurring white blotches on the paintwork, requiring multiple resprays.
January 2018Red paint on a 2013 C-Class Coupe blistered, was repainted under goodwill, but the issue returned after two months.
November 2015Red paint on a 2014 C-Class estate developed bubbles under the lacquer; Mercedes-Benz repainted the car.

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OtherMedium severity📝 Editorial

The 'Artico' artificial leather seat material, particularly on the driver's and front passenger's seats, is prone to tearing or splitting along the seams. This is a recurring issue, even after replacement.

Rough guide

£500-1000

Typical symptoms

Visible tears or splits in the seat upholstery seams
Wear and tear disproportionate to mileage

Affected vehicles

Engines:: All (with Artico upholstery)
Typical mileage:: 50000-80000 miles

6 more owner reports back this up

June 2019The Artico seat material on a 2013 C220CDI tore, with Mercedes replacing the driver's seat, but a new hole appeared six months later.
August 2018The Artico artificial leather seating in a W204 C-Class split after three years; Mercedes replaced it, but it split again within a year.
May 2018The Artico leather base of the driver's seat on a 2013 W204 C-Class split along the seam.
July 2017The Artico seat cover material split on a 2012 C-Class with 87,000 miles.
July 2017The front seat upholstery on a 2009 Mercedes-Benz C-Class split along the seams three separate times.
June 2015The Artico seat material on the driver's and front passenger's seats of a 2008 C180 with 52,000 miles tore along the main seams.

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BrakesHigh severity📝 Editorial

Corrosion of brake pipes, leading to MOT advisories and eventual failure. Replacement of all brake pipes can be a very expensive job.

Rough guide

£2400

Typical symptoms

MOT advisory for corroded brake pipes
Brake fluid leaks
Spongy brake pedal (in severe cases)

Affected vehicles

Engines:: All
Typical mileage:: 45000-100000 miles

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Transmission/ClutchHigh severity📝 Editorial

Various automatic transmission problems reported, including sticking in gear, juddering, lurching at low speed, and torque converter failure. Issues often require software updates, fluid changes, or component replacement (e.g., speed sensor, servo valve).

Rough guide

£396-1644

Typical symptoms

Transmission sticking in gear (e.g., 3rd or 1st)
Juddering or lurching at low speed
Harsh or 'jumping' gearchanges
Failure to change gear, especially at the start of a journey
Engine fault light showing with transmission issues

Affected vehicles

Engines:: 7G-Tronic / 9G-Tronic automatic transmissions
Typical mileage:: 27000-108000 miles

3 more owner reports back this up

November 2019A 2017 C43 Coupe with 24,000 miles had problems with its 9G Geartronic transmission, showing an ESM - U24FF fault code.
May 2019A 2015 C220 CDi 7G-Tronic Coupe with 46,000 miles was sticking in first gear, diagnosed as a failed servo valve in the control unit.
April 2019A 2015 C-Class Coupe 2.2 C220CDi 7G-tronic became stuck in gear, diagnosed as a speed sensor fault in the gearbox.

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SteeringHigh severity📝 Editorial

Failure of the electric power steering motor, which is integrated into the steering rack. This leads to a loss of power steering assistance and requires replacement of the entire steering rack. A safety recall (R/2017/159) was issued for this.

Rough guide

£2200

Typical symptoms

Loss of power steering assistance
Steering becomes very stiff
Power steering warning lamp illuminates

Affected vehicles

Engines:: All
Typical mileage:: Unknown miles

1 more owner report backs this up

October 2020An electric steering motor failed on a 2016 C-Class, requiring a full steering rack replacement at £2,200, with Mercedes-Benz covering 50 per cent.

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ElectricalHigh severity🏛️ Official recall

The steering column clock spring breaks and, with the steering airbag wiring insufficiently earthed, can short-circuit and set off the steering wheel airbag unexpectedly. DVSA covers it with seven recall campaigns launched between December 2017 and July 2018 (R/2017/282, R/2018/006, R/2018/055, R/2018/069, R/2018/098, R/2018/130 and R/2018/154), spanning the A-Class, B-Class, C-Class, CLA, E-Class, GLA and GLC built from June 2011 to July 2017. The largest single campaign covers 84,879 cars and the seven campaign totals add up to over 400,000. The work is free and has no time limit, but cars still change hands with it outstanding.

Rough guide

£0 (free safety recall)

Typical symptoms

Airbag warning light appearing on the dashboard
Unexpected airbag deployment

Affected vehicles

Engines:: All variants
Typical mileage:: All mileages miles

1 more owner report backs this up

October 2018A 2013 W204 C220 involved in an accident experienced brake failure and airbag malfunction, despite a prior airbag earthing recall.

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What owners report on the W204 / C-Class

49 single reports, unconfirmed

One owner each, in their own words rewritten as a line, and not counted in our risk scoring. A fault joins the list above once a second report or an editorial source backs it.

Engine · October 2022A 2011 C250 CDI with 162,000 miles experienced a drive chain failure, with engine repair costs estimated at £3,000 to £4,000.
Fuel system · February 2020A 220 diesel C-Class experienced a 9mpg drop in fuel economy after a voluntary dealer emissions software update.
Brakes · January 2020The brakes of a 2015 C300 D BlueTec hybrid failed at 88,000 miles due to a faulty servo assistance vacuum pump.
Engine · December 2019A 2019 C200 EQ Boost developed a serious engine rattle shortly after purchase; despite multiple part replacements, the noise persisted, leading to a rejection attempt.
Gearbox and clutch · November 2019After a NOx emissions software update, a C250d 4matic would not shift into 9th gear until 75mph, up from 68mph.
Fuel system · September 2019A February 2015 C200 Sport auto had a petrol odour outside, indicating a blocked charcoal filter in the fuel system's breather.
General · July 2019A 2017 C220d Estate with 19,000 miles spent 54 out of 66 days in the workshop due to repeated breakdowns.
Fuel system · May 2019A March 2016 W205 C200 had a petrol smell, caused by a blocked carbon filter in the fuel tank's ventilation system.
Electrics · February 2019A 2013 C220 CDI BlueEFFiCiENCY 7G-Tronic had ABS and EPS warning lights after a service, eventually diagnosed as a faulty EPS unit.
Electrics · January 2019A 2010 C250 Blue Efficiency experienced dashboard function failure due to a failed media interface unit, which could not be replaced.
Suspension and steering · December 2018The offside track control arm mount of a 2008 C350 Sport snapped off the subframe.
Engine · December 2018A 2012 C250 at 46,784 miles had an engine warning light for an electrical fault in the intake camshaft positioner sensor.
General · October 2018A C350e experienced high-speed vibration, particularly on motorways, which remained after tyre changes and laser alignment.
Electrics · October 2018A 2017 C350e experienced failure of its EMS and then the hybrid battery's Charge Control unit, requiring a special order part.
Engine · August 2018A 2014 C250 CDI AMG Line auto with full service history suffered a mechanical failure requiring a replacement engine.
Fuel system · August 2018A 2018 C200d Sport was delivered with a 42-litre fuel tank instead of 66 litres, which was later corrected.
Brakes · July 2018The electromechanical parking brake on a 2012 S204 C-Class estate automatic failed to secure the vehicle on a steep slope.
Gearbox and clutch · July 2018The differential failed on a 2009 C180 1.6 at 75,000 miles, with a dealer quoting £2,500 for replacement.
Electrics · June 2018The driver's side door lock failed on a 2007 W204 C220, preventing locking with the fob or interior button.
Fuel system · June 2018A 2017 C220d Premium Plus auto was delivered with a 42-litre fuel tank instead of the expected 66-litre capacity.
Engine · June 2018A 2015 C200 Sport 1.6 Bluetec diesel experienced repeated engine oil warnings, gearbox and turbocharger failures, and ultimately a complete engine failure.
Fuel system · June 2018A new C200 was delivered with a 42-litre fuel tank instead of the specified 64 litres.
Interior · May 2018A driver sliced their hand on the hard plastic coating of a 2012 C-Class coupe's seatback release lever.
Electrics · March 2018A 2017 C250d AMG Premium Plus estate developed numerous electrical faults, including door lights, memory seats, and keyless entry.
Engine · February 2018A 2009 C180 CGI with 34,000 miles developed multiple oil leaks from the filter housing, sump, and turbo lines.
Electrics · February 2018The starter motor failed on a 2013 C220 at 20,500 miles, costing the owner £350 for the repair.
Gearbox and clutch · January 2018A 2007 C230 Auto Avantgarde SE Estate with 108,000 miles had intermittent gearbox problems, diagnosed as a faulty speed sensor.
Bodywork · January 2018The tailgate of a September 2017 C220d Estate opened randomly when the car was left unattended.
Electrics · January 2018A 2017 C220 CDI AMG Line Premium plus had a Command system failure, intermittent boot sensor, and rusty brake discs.
Electrics · December 2017A 2014 C63AMG experienced an 'auto lights inoperative' warning and non-functional windscreen wipers, leading to immobilisation after a software update.
Bodywork · December 2017A persistent rattle was reported in the sunroof mechanism of a 2016 C-200, which the dealer could not cure.
Electrics · November 2017The power steering on a 2012 C180 became stiff twice due to a low battery charge, requiring two battery replacements.
Engine · October 2017A 2012 W204 C220i automatic experienced fluctuating engine revolutions when cold, making it impossible to drive.
Bodywork · September 2017Creaking from the door seals of a 2016 C200 executive auto persisted after the dealer refitted and lubricated them.
Fuel system · July 2017A 2015 C-Class with 20,000 miles emitted a petrol smell both within the cabin and from the exterior.
Electrics · May 2017The unit receiving the remote/transponder on the steering column of a 2012 C180 had a crunchy action from new.
Gearbox and clutch · December 2016A 2012 C180 CGI Blue Efficiency automatic with 27,000 miles experienced 'jumping' gearchanges, despite software and fluid changes.
Bodywork · December 2016The red paint on a 2011 C180 Coupe began showing raised pimples at 20,000 miles.
Engine · October 2016The engine of a 2012 C63AMG required replacement of all four camshafts, cam followers, and tappet adjusters, costing £6,366 after goodwill.
Engine · August 2016A 2007 C200CDI with 40,000 miles had a 'tinkling' noise from the timing chain area on start-up.
Electrics · July 2016A new March 2016 C350e refused to charge due to water ingress into the charging cable, which was replaced with a modified unit.
Interior · June 2016The glove locker on a W204 with keyless start was broken into, requiring a new lid costing £550.
Cooling · May 2016A 2012 C250CDI with 32,000 miles had two coolant leaks from the water pump and thermostat housing, costing £550 after goodwill.
Bodywork · February 2016The upper bulkhead seam of a four-year-old C-Class coupe split, causing water to leak into the passenger footwell.
Electrics · February 2016A 2011 C180 Coupe had a persistent ECO function problem, cycling on and off regularly despite multiple dealer attempts to fix it.
Engine · September 2015An oil leak from the timing chain tensioner seal of a 109,000-mile C220CDI W204 led to new valves, springs, lifters, and a turbo, costing £4,400.
Electrics · July 2015A C-Class bought in November 2014 had multiple electrical issues, including control screen failure, satnav problems, and intermittent starting.
Suspension and steering · June 2015All four Continental tyres on a 2012 C-Class coupe with 9,000 miles showed sidewall and tread cracking at its first MoT.
Suspension and steering · May 2015The steering rack failed on a five-year-old C200CDI with 27,000 miles, with replacement estimated at £2,000.

What owners like about the W204 / C-Class

17 notes

The C-Class achieved a five-star Euro NCAP rating for passenger protection, three stars for child passengers, and two for pedestrian protection.
Post-2012 facelift C-Class models with the COMAND satnav system accept seven-figure postcodes.
The C-Class estate model from 2008 to 2014 features a very neat and attractive exterior design.
This C-Class model offers a highly comfortable and refined driving experience for occupants.
The C-Class estate offers more interior room and boot space compared to its predecessor model.
The C-Class estate is expected to offer refined driving dynamics and good handling, similar to the saloon.
The C-Class estate boasts exceptional interior quality and a high standard of finish.
The dashboard and driver's area of the C-Class estate are nicely designed.
The C-Class estate features a large boot with a versatile 40/20/40 folding rear bench seat.
The four-cylinder diesel engines in the C-Class estate are superbly refined and economical.
This C-Class estate model comes with a very generous list of standard equipment.
The C-Class features a much improved interior quality compared to previous models.
The C-Class is more refined and offers a better driving experience than its predecessor.
The 1.6-litre diesel engine in the C200 Bluetec is very impressive and economical.
The C-Class is offered with a newly developed and efficient six-speed manual transmission.
The optional Airmatic suspension, costing £895, is a recommended feature for the C-Class.
The C-Class achieved a five-star Euro NCAP rating, with high scores for adult and child occupant protection.

Other years0 known faults · 1 owner report · 9 good notes

Other Mercedes-Benz C-Class years: owner reports

What owners report

1 single report, unconfirmed

One owner each, in their own words rewritten as a line, and not counted in our risk scoring. A fault joins the list above once a second report or an editorial source backs it.

Electrics · November 2019Problems with the 'Mercedes Me' app adversely affected the software functions of a new 2019 C-Class Coupe.

What owners like

9 notes

The C-Class Cabriolet's fabric hood is very well insulated, providing comfort in winter conditions.
The C-Class Cabriolet offers 4Matic all-wheel drive as an option for both petrol and diesel engines.
The C-Class Cabriolet's interior feels solid, well-finished, and modern, unlike some recent Mercedes-Benz models.
The C-Class Cabriolet's roof operates at speeds up to 30mph, allowing for quick closure in sudden downpours.
The 2017 C-Class Cabriolet achieved a five-star Euro NCAP rating, with 89% adult occupant safety.
The C 220 d is available with a manual gearbox as standard or a 9G-Tronic nine-speed automatic transmission.
The 2016 C-Class Coupe offers a firm yet forgiving ride, making it one of the most comfortable two-door cars available.
This 2016 C-Class Coupe demonstrates excellent high-speed stability and overall refinement during journeys.
The boot of the 2016 C-Class Coupe is surprisingly practical, providing ample space for a large pushchair.

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Mercedes-Benz C-Class recalls

Recall work is done by the manufacturer, and GOV.UK says you will not usually have to pay for it. These are the 139 DVSA recalls for the C-Class, newest first. They do not tell you whether this particular car has had the work: for that, put the registration into the free GOV.UK MOT history check, which shows a recall status where the manufacturer shares it, or ask a franchised dealer to check the VIN.

🏛️ September 2025Cars built June 2022 to May 2025

SRPC2512 - Bolting of Steering Coupling

Mercedes-Benz AG has determined that on certain C-Class (206 platform) GLC (254 platform) and EQE (295 platform) vehicles the bolting of the steering coupling might not meet specifications.

Put right by: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will rework the bolting of the steering coupling on the affected vehicles.

DVSA R/2025/33346 vehicles affected in the UK

🏛️ May 2025Cars built August 2023 to July 2024

SRPC2506 - Driver seat belt fitting

Mercedes-Benz AG has determined that on certain C-Class (206 platform) vehicles the safety cap of the seatbelt end fitting on the driver seat might not be installed correctly.

Put right by: As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will check the safety cap of the seat belt end fitting on the affected vehicles and rework it if necessary.

DVSA R/2025/1582 vehicles affected in the UK

🏛️ December 2024Cars built October 2021 to April 2023

SRPC2419 Misfire Detection M264

The software of the engine control unit might not meet specifications regarding misfire detection.

Put right by: Mercedes-Benz AG via its Mercedes-Benz service partners will update the software of the engine control unit on the affected vehicles.

DVSA R/2024/4741,147 vehicles affected in the UK

🏛️ August 2024Cars built December 2021 to September 2022

SRPC2410 - Bolting Connection Pre-Fuse Box

On affected vehicles the bolting of an electrical wire on the pre-fuse box in the passenger-side footwell might have not been tightened with sufficient torque.

Put right by: Check the bolting connection of the wiring harness to the pre-fuse box and repair if necessary.

DVSA R/2024/28169 vehicles affected in the UK

🏛️ August 2024Cars built November 2021 to December 2021

SRPC2413 - Screw connections of 12 V and 48 V ground points

On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

Put right by: Check connections and repair if necessary.

DVSA R/2024/2992 vehicles affected in the UK

🏛️ May 2024Cars built July 2021 to November 2021

SRPC2407 - Battery Pole Cover

On affected vehicles the cover for a pole of the 12V battery might not be installed.

Put right by: Check whether the battery positive pole covers have been installed and if necessary install it.

DVSA R/2024/2022 vehicles affected in the UK

🏛️ April 2024Cars built March 2023 to March 2023

SRPC2338 -Rear-Axle Wiring Harness

On affected vehicles the rear-axle wiring harness might be pre-damaged due to a fixing which might not meet specifications.

Put right by: Check and replace the rear-axle wiring harness if necessary.

DVSA R/2024/1251 vehicles affected in the UK

🏛️ March 2024Cars built March 2023 to September 2023

SRPC2401 - System protection

On certain vehicles some 80A fuses installed might not meet requirements.

Put right by: Replace the respective main fuse boxes on the affected vehicles.

DVSA R/2024/130958 vehicles affected in the UK

🏛️ February 2024Cars built July 2014 to September 2017

On affected vehicles the panel located between the windshield and the panoramic sunroof might not have been bonded correctly during a prior service repair.

Put right by: Check the front fixed element of the panoramic sliding sunroof and replace if necessary.

DVSA R/2024/02445 vehicles affected in the UK

🏛️ November 2023Cars built June 2023 to June 2023

On affected vehicles the left brake hose on the rear axle might not have been installed according to specifications.

Put right by: Check the brake hose and replace if necessary.

DVSA R/2023/3081 vehicles affected in the UK

🏛️ November 2023Cars built April 2022 to May 2022

On affected vehicles the length of the transmission wiring harness might not meet specifications..

On affected vehicles the length of the transmission wiring harness might not meet specifications.

Put right by: Check transmission wiring harness routing and rework if necessary.

DVSA R/2023/2253 vehicles affected in the UK

🏛️ October 2023Cars built November 2021 to November 2021

Welding between fuel filler pipe and fuel tank might not meet specifications

On affected vehicles the welding between fuel filler pipe and fuel tank might not meet specifications.

Put right by: Replace the fuel tank.

DVSA R/2023/2603 vehicles affected in the UK

🏛️ September 2023Cars built January 2019 to April 2023

On affected vehicles the cable lug of the 48V ground connection in the engine compartment might not be fixed correctly.

Put right by: Check the bolting of the ground connection on the affected vehicles and repair if necessary

DVSA R/2023/2466,902 vehicles affected in the UK

🏛️ August 2023Cars built August 2021 to March 2023

On affected vehicles the fuel pump impeller might not meet specifications and may deform.

Put right by: Replace the fuel pump module.

DVSA R/2023/2233,761 vehicles affected in the UK

🏛️ August 2023Cars built November 2021 to March 2022

On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

Put right by: Check the bolting of the ground connections and repair if necessary.

DVSA R/2023/2299 vehicles affected in the UK

🏛️ August 2023Cars built July 2021 to March 2023

On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

Put right by: Check the bolting of the ground connections and repair if necessary.

DVSA R/2023/230173 vehicles affected in the UK

🏛️ August 2023Cars built September 2021 to June 2022

Mercedes-Benz AG has determined that on certain C-Class (206 platform) vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

On affected vehicles the bolts of certain 12V and 48V ground connections might be fastened with an insufficient torque.

Put right by: Check the bolting of the ground connections and repair if necessary.

DVSA R/2023/23175 vehicles affected in the UK

🏛️ July 2023Cars built July 2021 to May 2022

On affected vehicles the inflation of the front passenger airbag might not meet specifications.

Put right by: Replace the front passenger airbag.

DVSA R/2023/151796 vehicles affected in the UK

🏛️ March 2023Cars built June 2019 to April 2021

On affected vehicles the bolting of the 48V ground connection in the engine compartment might not be sufficiently tightened.

Put right by: Check the bolting of the ground connection and correct if necessary.

DVSA R/2023/0562,674 vehicles affected in the UK

🏛️ February 2023Cars built October 2014 to December 2016

On affected vehicles the aluminium bolts of the steering gear could corrode and break due to the intrusion of moisture.

Put right by: Replace the steering gear mounting bolts on the affected vehicles with steel bolts. Should the bolts break or already be broken change the steering gear.

DVSA R/2023/02351,251 vehicles affected in the UK

🏛️ February 2023Cars built March 2000 to December 2010

On affected vehicles the bonding between the glass panel and the sliding roof frame might not meet specifications. In consequence a separation of the glass panel from the vehicle cannot be excluded.

Put right by: Check the glass panel and replace the sliding roof if necessary.

DVSA R/2023/0189,567 vehicles affected in the UK

🏛️ February 2023Cars built March 2000 to December 2010

The bonding between the glass panel and the sliding roof frame might not meet specifications

On affected vehicles the bonding between the glass panel and the sliding roof frame might not meet specifications. In consequence a separation of the glass panel from the vehicle cannot be excluded.

Put right by: Check the glass panel and replace the sliding roof if necessary.

DVSA R/2023/01916,535 vehicles affected in the UK

🏛️ February 2023Cars built March 2000 to December 2010

The bonding between the glass panel and the sliding roof frame might not meet specifications.

On affected vehicles the bonding between the glass panel and the sliding roof frame might not meet specifications. In consequence a separation of the glass panel from the vehicle cannot be excluded.

Put right by: Check the glass panel and replace the sliding roof if necessary.

DVSA R/2023/0203,267 vehicles affected in the UK

🏛️ November 2022Cars built April 2021 to June 2022

The holding force of the fuel feed line may not correspond with the specifications

The holding force of the fuel feed line may not correspond with the specifications.

Put right by: Check the fuel line on the affected vehicles and replace it if necessary.

DVSA R/2022/301702 vehicles affected in the UK

🏛️ November 2022Cars built January 2022 to January 2022

A weld seam of the supporting structure of the transmission connection may not correspond with the specifications

A weld seam of the supporting structure of the transmission connection may not correspond with the specifications.

Put right by: Check the transmission connection on the affected vehicles and replace it if necessary.

DVSA R/2022/3023 vehicles affected in the UK

🏛️ October 2022Cars built April 2021 to December 2021

Software of the communication module may not correspond with the specifications

The software of the communication module may not correspond with the specifications.

Put right by: Update the software of the communication module in the affected vehicles.

DVSA R/2022/30056 vehicles affected in the UK

🏛️ October 2022Cars built June 2021 to June 2022

Water ingress into the trunk and therefore moisture might enter into the signal acquisition and actuation module

Moisture may ingress into the signal acquisition module.

Put right by: Retro fit a cover to the signal acquisition module.

DVSA R/2022/2901,564 vehicles affected in the UK

🏛️ September 2022Cars built June 2021 to October 2021

The engine control unit wiring harness might come in contact with the engine hood

The engine control unit wiring harness might come in contact with the engine hood.

Put right by: Check the routing of the engine control unit wiring harness and correct it if necessary.

DVSA R/2022/2514 vehicles affected in the UK

🏛️ August 2022Cars built October 2021 to November 2021

Vehicles might be equipped with an incorrect variant of the tyre pressure label in the tank flap

Vehicles might be equipped with an incorrect variant of the tyre pressure label in the tank flap.

Put right by: The tyre pressure label is to be replaced.

DVSA R/2022/2252 vehicles affected in the UK

🏛️ June 2022Cars built August 2004 to December 2013

The passenger air bag may not deploy as specified

The passenger airbag may not deploy as specified.

Put right by: Replace the passenger airbag.

DVSA R/2022/12425 vehicles affected in the UK

🏛️ June 2022Cars built August 2004 to December 2013

The passenger air bag may not deploy as specified

The passenger airbag may not deploy as specified.

Put right by: Replace the passenger airbag.

DVSA R/2022/125109,809 vehicles affected in the UK

🏛️ May 2022Cars built February 2019 to February 2019

Individual bolts or chain links of the camshaft timing chain might wear

Individual bolts or chain links of the camshaft timing chain might wear in case of a long term operation under specific driving conditions.

Put right by: Replace the camshaft timing chain on the affected vehicles

DVSA R/2022/116714 vehicles affected in the UK

🏛️ May 2022Cars built June 2020 to January 2022

The software of the rear signal acquisition and actuation module might not meet specifications

The software of the rear signal acquisition and actuation module might not meet specifications.

Put right by: Update the software of the signal acquisition and actuation module on the affected vehicles.

DVSA R/2022/117605 vehicles affected in the UK

🏛️ May 2022Cars built September 2008 to June 2012

One or more control unit vehicle configurations might not meet specifications

Vehicles configurations were written into one or more control units that might not meet specifications.

Put right by: Update the configuration of the affected control units on the vehicles.

DVSA R/2022/1133 vehicles affected in the UK

🏛️ April 2022Cars built February 2021 to August 2021

The overhead control panel might be deactivated permanently due to a software error

The overhead control panel under certain circumstances might be deactivated permanently due to a software error.

Put right by: Update the software of the overhead control panel.

DVSA R/2022/1126 vehicles affected in the UK

🏛️ March 2022Cars built July 2018 to September 2019

A particle in the fuel rail might lead to a leak between the fuel rail and the injector

A particle in the fuel rail might lead to a leak between the fuel rail and the fuel injector.

Put right by: Replace the fuel rail and fuel injectors on the affected vehicles.

DVSA R/2022/06126 vehicles affected in the UK

🏛️ March 2022Cars built December 2017 to July 2019

On certain vehicles the routing of an electric cable in the engine compartment might not meet specifications

On certain vehicles the routing of an electric cable in the engine compartment might not meet specifications.

Put right by: Check the cable routing on the affected vehicles and correct it if necessary.

DVSA R/2022/0496,322 vehicles affected in the UK

🏛️ March 2022Cars built March 2021 to December 2021

The software of the communication module might not meet specifications

On certain vehicles the software of the communication module might not meet specifications.

Put right by: As a precautionary measure update the software of the communication module on the affected vehicles. This software update is planned to be performed over-the-air with no workshop visit being required.

DVSA R/2022/032486 vehicles affected in the UK

🏛️ March 2022Cars built March 2021 to December 2021

The software of the communication module might not meet specifications

On certain vehicles the software of the communication module might not meet specifications.

DVSA R/2022/03063 vehicles affected in the UK

🏛️ February 2022Cars built January 2022 to January 2022

On certain vehicles the automatic transmission might have been filled with too much transmission oil

On certain vehicles the automatic transmission might have been filled with too much transmission oil.

Put right by: Check the oil level of the transmission on the affected vehicles and adjust it if necessary.

DVSA R/2022/0401 vehicles affected in the UK

🏛️ February 2022Cars built December 2020 to October 2021

The configuration of the mbux system might not meet specifications

On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.

Put right by: Update the configuration of the MBUX system on affected vehicles.

DVSA R/2022/0185 vehicles affected in the UK

🏛️ February 2022Cars built June 2020 to October 2021

The software of the engine control unit might not meet specifications

On certain vehicles the software of the engine control unit might not meet specifications.

Put right by: Conduct an update the software of the engine control unit on the affected vehicles.

DVSA R/2022/01951 vehicles affected in the UK

🏛️ January 2022Cars built April 2017 to October 2021

Coolant pump might have a leakage between the vacuum system and the coolant circuit

On certain vehicles with a Diesel engine the coolant pump which is controlled by vacuum might have a leakage between the vacuum system and the coolant circuit.

Put right by: Update the software of the coolant pump and replace the electrical switch valve on the affected vehicles.

DVSA R/2021/43835,624 vehicles affected in the UK

🏛️ January 2022Cars built December 2020 to October 2021

The configuration of the mbux system might not meet specifications.

On certain vehicles with an active and connected Mercedes me connect account the configuration of the MBUX system might not meet specifications.

Put right by: A remote update of the configuration of the MBUX system will be conducted without the need for a workshop visit.

DVSA R/2021/43425 vehicles affected in the UK

🏛️ December 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/10623 vehicles affected in the UK

🏛️ December 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/1076 vehicles affected in the UK

🏛️ December 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/13021 vehicles affected in the UK

🏛️ November 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/37650,390 vehicles affected in the UK

🏛️ November 2021Cars built August 2004 to December 2013

Takata airbag might not deploy as specified

Certain climatic conditions may cause a chemical change to the airbag propellantsover time.

Put right by: Replace the driver andpassenger airbags.

DVSA R/2021/35885,613 vehicles affected in the UK

🏛️ November 2021Cars built August 2004 to December 2013

Takata airbag might not deploy as specified

Certain climatic conditions may cause a chemical change to the airbag propellants over time.

Put right by: Replace the driver and passenger airbags.

DVSA R/2021/35956 vehicles affected in the UK

🏛️ November 2021Cars built June 2021 to August 2021

A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specifications

A nozzle inside the suction jet pump in the fuel tank might not have been installed or fixed inside the pump according to specifications.

Put right by: Conduct a check of the fuel system on the affected vehicles and replace the fuel tank including the suction jet pump if necessary.

DVSA R/2021/34088 vehicles affected in the UK

🏛️ September 2021Cars built January 2019 to March 2021

The belt tensioner arm may have been manufactured with borderline tolerance

The belt tensioner arm may have been manufactured with borderline tolerance.

Put right by: Replace the belt tensioner. Additionally check the v-ribbed belt on the affected vehicles and replace it if necessary.

DVSA R/2021/304427 vehicles affected in the UK

🏛️ August 2021Cars built July 2013 to October 2019

Vehicles with a panoramic sunroofthe polycarbonate panel may not have been bonded correctly during a prior service repair

The polycarbonate panel located between the windshield and the panoramic sunroof may not have been bonded correctly during a prior service repair.

Put right by: Remove the bonded panel and install a new polycarbonate panel if required.

DVSA R/2021/27461 vehicles affected in the UK

🏛️ August 2021Cars built August 2004 to December 2013

The driver's air bag may have a chemical change to its propellant over time

The driver's airbag may have a chemical change to its propellant over time.

Put right by: Replace the drivers airbag.

DVSA R/2021/277108,486 vehicles affected in the UK

🏛️ July 2021Cars built March 2014 to February 2018

Diodes on the rectifier bridge of the alternator might fail

Diodes on the rectifier bridge of the alternator might fail.

Put right by: Update the engine control unit software with an optimised alternator control strategy on the affected vehicles.

DVSA R/2021/24118,050 vehicles affected in the UK

🏛️ July 2021Cars built January 2021 to March 2021

The fixation of the rear headrests might not meet specifications

The fixation of the rear headrests might not meet specifications.

Put right by: Check the guide sleeves on the rear seats of the potentially affected vehicles and replace them if necessary.

DVSA R/2021/223320 vehicles affected in the UK

🏛️ July 2021Cars built December 2020 to December 2020

The bolting of the high voltage battery to the vehicle body in the luggage compartment might not meet specifications

The bolting of the high-voltage battery to the vehicle body in the luggage compartment might not meet specifications.

Put right by: Check the bolting of the high-voltage battery to the vehicle body on the affected vehicles and rework if necessary.

DVSA R/2021/2495 vehicles affected in the UK

🏛️ May 2021Cars built December 2005 to September 2006

The bonding between the glass panel and the sliding roof frame might not meet specifications

The bonding between the glass panel and the sliding roof frame might not meet specifications.

Put right by: Check the glass panel bonding on the affected vehicles and replace the sliding roof if necessary.

DVSA R/2021/145310 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/110108,971 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/12086,604 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/11190,716 vehicles affected in the UK

🏛️ May 2021Cars built April 2016 to November 2020

The connection of the gas lines of the inertisation system might not meet specifications

The connection of the gas lines of the inertisation system might not meet specifications.

Put right by: Check and if necessary rework the gas lines of the inertisation system.

DVSA R/2021/12129,137 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/1296 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/13181,267 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/13210,410 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/133106,665 vehicles affected in the UK

🏛️ May 2021Cars built January 2016 to January 2021

The behaviour of the emergency call system might not meet specifications

The behaviour of the emergency call system might not meet specifications.

Put right by: Update the software of the communication module for the emergency call system.

DVSA R/2021/134162,581 vehicles affected in the UK

🏛️ March 2021Cars built May 2016 to July 2020

The communication module may be deactivated

Put right by: Carry out a check of the configuration of the communication module on affected vehicles and if necessary activate the communication module.

DVSA R/2021/08224 vehicles affected in the UK

🏛️ March 2021Cars built February 2017 to March 2020

The software of certain communication modules may not meet specifications

The software of certain communication modules may not meet specifications.

Put right by: Carry out an update to the software of the communication module on affected vehicles.

DVSA R/2021/08336 vehicles affected in the UK

🏛️ December 2020Cars built December 2019 to March 2020

The wiring harness of the steering control unit may not have been manufactured to specification

The wiring harness of the steering control unit might not have been manufactured according to specification.

Put right by: Check the wiring harness of the steering control unit on the affected vehicles and replace it if necessary.

DVSA R/2020/3333,029 vehicles affected in the UK

🏛️ December 2020Cars built January 2018 to February 2020

The high voltage wiring harness shield may not permanently withstand the electrical loads that are induced under certain driving profiles

The shield for the high-voltage wiring harness may not permanently withstand the electrical loads that are induced under certain driving profiles

Put right by: Replace the high-voltage wiring harness on the affected vehicles

DVSA R/2020/3342,377 vehicles affected in the UK

🏛️ November 2020Cars built June 2018 to March 2019

The headlight adjustment may not meet the specification

The headlight adjustment might not meet the specification

Put right by: Check the headlight adjustment on the affected vehicles and correct it if necessary.

DVSA R/2020/286160 vehicles affected in the UK

🏛️ October 2020Cars built April 2018 to October 2019

The software of the ESP control unit may not meet the specifications

The software of the ESP control unit might not meet the specifications.

Put right by: Update the software for the ESP control unit on the affected vehicles.

DVSA R/2020/2391,061 vehicles affected in the UK

🏛️ October 2020Cars built March 2017 to September 2018

THE EMERGENCY CALL SYSTEM (eCall) DOES NOT MEET THE SPECIFICATION

On affected vehicles the software of the communication module for the emergency call system does not meet the specification

Put right by: Update the software of the communication module for the emergency call system

DVSA R/2020/2363,127 vehicles affected in the UK

🏛️ October 2020Cars built March 2016 to February 2019

The seat belt warning function does not meet the specification

Put right by: Activate the correct seat belt warning scenario in the instrument cluster

DVSA R/2020/24045 vehicles affected in the UK

🏛️ October 2020Cars built November 2011 to May 2018

Engine control unit software to be updated

Improve the vehicle emissions via software updates.

Put right by: Update the relevant control units software and if necessary replace the NOx sensors.

DVSA R/2020/243994 vehicles affected in the UK

🏛️ October 2020Cars built October 2008 to January 2013

Certain specific calibrations of functions must be changed in the engine management

Certain specific calibrations of functions must be changed in the engine management of the vehicles

Put right by: Update the diesel engine control unit software

DVSA R/2020/20023,302 vehicles affected in the UK

🏛️ September 2020Cars built November 2014 to March 2017

The engine control unit software nay not meet specifications

The engine control unit software might not meet the specifications.

Put right by: Update the diesel engine control unit software on the affected vehicles.

DVSA R/2020/2011,258 vehicles affected in the UK

🏛️ August 2020Cars built June 2018 to March 2020

The data documenting the correct mounting of the turbocharger oil feed as well as the oil return line may be missing

The HV battery pack can overheat and result in the venting of hot gas which can ignite vehicle components or in extreme cases the entire vehicle.

Put right by: To prevent a vehicle fire the vehicles should not be charged using the external charging cable and the vehicles should only be driven using the default Auto EV mode only

DVSA R/2020/225248 vehicles affected in the UK

🏛️ August 2020Cars built January 2020 to March 2020

The left rear seat backrest lock may not meet specifications

The left rear seat backrest lock might not meet the specifications

Put right by: Replace the left rear seat backrest lock on the affected vehicles.

DVSA R/2020/1971,179 vehicles affected in the UK

🏛️ August 2020Cars built June 2018 to October 2018

Certain front seat belt buckles may not have been manufactured according to specification

A correctly fastened seat belt could be detected as not fastened impairing the restraint system

Put right by: Check the relevant seat belt buckles in the affected vehicles and replace if necessary

DVSA R/2019/37215,652 vehicles affected in the UK

🏛️ July 2020Cars built September 2018 to July 2019

The dimension of the brake discs on the front axle may be too small

The dimension of the brake discs installed on the front axle might be too small.

Put right by: Replace the brake discs on the affected vehicles.

DVSA R/2020/0844 vehicles affected in the UK

🏛️ July 2020Cars built March 2019 to March 2019

The heat shield installed at the turbocharger may not meet the specification

Put right by: Replace the heat shield on the affected vehicles

DVSA R/2020/13727 vehicles affected in the UK

🏛️ May 2020Cars built March 2000 to July 2010

The bonding between the glass panel and the sliding roof frame may not meet specifications

The bonding between the glass panel and the sliding roof frame might not meet specifications

Put right by: Check the glass panel bonding on the affected vehicles and replace the sliding roof if necessary

DVSA R/2019/45818,132 vehicles affected in the UK

🏛️ March 2020Cars built December 2015 to December 2015

The spring damper software may not meet specifications

The spring damper software might not meet specification affecting level sensors and headlight range.

Put right by: Replace the spring damper control unit on affected vehicles.

DVSA R/2020/0471 vehicles affected in the UK

🏛️ November 2019Cars built February 2019 to February 2019

The tie rod may not be correctly mounted to the right front axle stub

The mechanical connection between tie rod and right front axle stub might not be ensured.

Put right by: Replace the tie rod of the right front axle on the affected vehicles.

DVSA R/2019/33811 vehicles affected in the UK

🏛️ September 2019Cars built February 2017 to July 2019

The software of the radar control unit may not meet specification

; The software of the radar control unit might not meet the specification

Put right by: Update the software of the radar sensor control unit on the affected vehicles.

DVSA R/2019/269294 vehicles affected in the UK

🏛️ September 2019Cars built February 2019 to March 2019

The crankshaft may exhibit surface damages

The durability of the crankshaft might be impaired.

Put right by: Replace the engine on affected vehicles.

DVSA R/2019/25335 vehicles affected in the UK

🏛️ June 2019Cars built December 2018 to January 2019

The mounting bolts of the turbocharger oil return line and the crank case ventilation line might have been interchanged

The mounting bolts of the turbocharger oil return line might have been interchanged

Put right by: Replace the mounting bolts

DVSA R/2019/16018 vehicles affected in the UK

🏛️ May 2019Cars built August 2014 to May 2018

Software update to improve emissions

Improve the vehicle emissions via software updates.

Put right by: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual.

DVSA R/2019/0777,546 vehicles affected in the UK

🏛️ May 2019Cars built July 2018 to August 2018

An internal sensor within the electric power steering unit may not have been manufactured to specifications

An internal sensor within the electric power steering unit might not have been manufactured according to specifications.

Put right by: The affected vehicles are to have the steering unit replaced.

DVSA R/2019/04332 vehicles affected in the UK

🏛️ May 2019Cars built June 2018 to October 2018

Switches in certain seat belt buckles may not have been manufactured to specifications

The switches in certain seat belt buckles might not have been manufactured according to specifications.

Put right by: The affected seat belt buckles are to be replaced.

DVSA R/2019/0402,570 vehicles affected in the UK

🏛️ April 2019Cars built May 2016 to August 2018

A reset in the cpc control unit could occur whilst driving

The ECO Start-Stop function may be disabled and cause the vehicle to stall.

Put right by: The affected vehicles are to be recalled and the software updated.

DVSA R/2019/10869 vehicles affected in the UK

🏛️ April 2019Cars built December 2017 to October 2018

A lock nut may be cracked in the steering gear

A lock nut may be cracked in the steering gear.

Put right by: The electric power steering is to be checked and if necessary replaced.

DVSA R/2019/0926,684 vehicles affected in the UK

🏛️ April 2019Cars built March 2015 to October 2018

A lock nut may be cracked in the steering gear

A lock nut may be cracked in the steering gear.

Put right by: The electric power steering is to be checked and if necessary replaced.

DVSA R/2019/08924 vehicles affected in the UK

🏛️ March 2019Cars built June 2017 to November 2018

The electronic stability program control unit software may not match the current specification

The ESP control unit may not be initialised as intended during the start-up process.

Put right by: The affected vehicles are to be recalled and ESP control unit software updated.

DVSA R/2019/02211,788 vehicles affected in the UK

🏛️ March 2019Cars built August 2017 to October 2018

The status of the front passenger airbags displayed in the centre console might not be indicated correctly

The status of the front passenger airbags displayed in the centre console might not be indicated correctly.

Put right by: The affected vehicles head unit software will be updated

DVSA R/2019/00736,643 vehicles affected in the UK

🏛️ January 2019Cars built May 2018 to May 2018

The lock status of the steering coupling was not correctly documented

The lock status of the steering coupling was not correctly documented following assembly.

Put right by: As a precautionary measure on affected vehicles the lock status of the steering coupling will be determined and reworked if necessary.

DVSA R/2019/0044 vehicles affected in the UK

🏛️ October 2018Cars built December 2013 to May 2018

To improve emissions of the affected vehicles.certain calibrations of functionalities must be changed in the engine management

Improve the vehicle emissions via software updates.

Put right by: Update the diesel engine control unit software and add a supplementary booklet for the operator's manual

DVSA R/2018/26615,692 vehicles affected in the UK

🏛️ October 2018Cars built October 2014 to April 2018

An electric line in the engine compartment may have been routed outside of the specification

An electric line in the engine compartment may have been routed outside of the specification.

Put right by: Check the routing of the wiring harness at the prefuse box in the engine compartment and correct if necessary.

DVSA R/2018/2548,562 vehicles affected in the UK

🏛️ October 2018Cars built January 2016 to November 2017

Bonding of the rear beltline trim strips may not be to specification

Bonding of the rear beltline trim strips may not correspond to the specifications.

Put right by: Check the trim strips of the affected vehicles and replace them if necessary.

DVSA R/2018/2317,800 vehicles affected in the UK

🏛️ August 2018Cars built March 2018 to March 2018

Incorrect underfloor panelling installed

Incorrect engine undertray fitted.

Put right by: Check and replace engine undertray on affected vehicles.

DVSA R/2018/20415 vehicles affected in the UK

🏛️ August 2018Cars built August 2017 to February 2018

Laser welding between backrest rail and backrest metal fitting of front seats may not meet specification

It has been determined that on certain C-Class (205) and E-Class (213) Cars with AMG performance seats the laser welding between the backrest rail and the backrest metal fitting of the driver or passenger seat might not meet the specification. The laser welding between the backrest member and the backrest metal fitting may not withstand the required load values. As a result the fitting may detach from the backrest member. In the case of an accident this could result in a higher occupant load. Due to the delivery scenario the fault can only occur on one side of the seat.

Put right by: As a precautionary measure recall the affected vehicles and check the backrest member and replace if necessary

DVSA R/2018/15846 vehicles affected in the UK

🏛️ August 2018Cars built January 2018 to March 2018

Driver's airbag gas generator housing failure during deployment

On affected vehicles it has been determined that drivers airbags with potentially faulty gas generator housing material may have been installed in vehicles of model series 156 176 246 205 238 & 253. If the material of the gas generator housing fails during airbag deployment in the event of a crash the airbag system would possibly no longer have a restraint effect. In addition separating parts could enter the passenger compartment. This could lead to an increased risk of injury.

Put right by: On affected vehicles replace the drivers airbag

DVSA R/2018/168421 vehicles affected in the UK

🏛️ August 2018Cars built November 2017 to April 2018

Incorrect software specification for the steering column switch module

Software of switch module incorrect specification

Put right by: Update software of affected vehicles

DVSA R/2018/2056 vehicles affected in the UK

🏛️ July 2018Cars built August 2017 to February 2018

Right side of front seat backrests may not lock into place

The seat backrests on the right side of the front seats in the c-class Coupe/Convertible and E-Class Coupe/Convertible may not fully lock.

Put right by: As a precautionary measure the lock of the seat backrest on affected vehicles will be check for operation. Where necessary the backrest will be replaced.

DVSA R/2018/14621,366 vehicles affected in the UK

🏛️ July 2018Cars built June 2011 to June 2017

Electrical wiring in steering assembly may be insufficiently grounded

The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy

Put right by: .Affected vehicles will be recalled to be checked to ensure there is sufficient grounding of the steering components.

DVSA R/2018/15410,113 vehicles affected in the UK

🏛️ June 2018Cars built November 2011 to July 2017

Electrical wiring in steering assembly may be insufficiently grounded

The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.

Put right by: Affected vehicles will be recalled to establish sufficient grounding of the steering components

DVSA R/2018/13078,608 vehicles affected in the UK

🏛️ June 2018

Airbag control unit connection may not be manufactured to specification

The connector pins of the occupant classification system to the airbag control unit might have been manufactured outside specification. After a period of time this may cause decativation of the passnger airbag.

Put right by: On affected vehicles replace the connector pins of the occupant classification system.

DVSA R/2018/121100 vehicles affected in the UK

🏛️ May 2018Cars built November 2011 to July 2017

Steering components may be insufficiently grounded

It has been determined that the steering airbag electrical components are insufficiently grounded. Failure of the steering column module clock spring could result in an inadvertent deployment of the driver airbag which may cause risk of injury to the driver and an increased risk of a potential collision.

Put right by: On affected vehicles the manufacturer will fit a contact bridge to the outer race of the steering column top bearing which will provide correct grounding.

DVSA R/2018/09874,329 vehicles affected in the UK

🏛️ April 2018Cars built November 2011 to July 2017

Electrical wiring in steering assembly may be insufficiently grounded

The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.

Put right by: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

DVSA R/2018/05551,528 vehicles affected in the UK

🏛️ April 2018Cars built November 2011 to July 2017

Electrical wiring in steering assembly may be insufficiently grounded

The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.

Put right by: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

DVSA R/2018/06967,027 vehicles affected in the UK

🏛️ February 2018Cars built April 2016 to March 2017

Front seat belt tensioners may not function

The front seatbelt pre-tensioner ignitors may not perform as expected. This could increase the risk of injury to the seat occupants. The lock function of the seatbelts is not impaired.

Put right by: On affected vehicles replace seatbelts with quality assured units.

DVSA R/2018/010296 vehicles affected in the UK

🏛️ February 2018Cars built November 2011 to July 2017

Electrical wiring in steering assembly may be insufficiently grounded

The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.

Put right by: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

DVSA R/2018/00684,879 vehicles affected in the UK

🏛️ December 2017Cars built November 2011 to July 2017

Electrical wiring in steering assembly may be insufficiently grounded

The steering column clock spring may break. This will cause warning messages to illuminate in the instrument cluster but in extreme instances it may cause the driver's airbag to deploy.

Put right by: Affected vehicles will be recalled to establish sufficient grounding of the steering components.

DVSA R/2017/28246,093 vehicles affected in the UK

🏛️ October 2017Cars built April 2016 to March 2017

Right front seat belt pre-tensioner may not meet specification

The right front seat belt pretensioner may not conform to specification. This may adversely affect it's operation in the event of an accident.

Put right by: Replace the pretensioner on affected vehicles.

DVSA R/2017/253135 vehicles affected in the UK

🏛️ September 2017Cars built April 2016 to March 2017

Left front seat belt pre-tensioner may not meet specification

The propellant mix in certain seatbelt pre-tensioners ignitors may be incorrect. If the front seatbelt pre-tensioners are deployed the lock function of the pre-tensioners cannot be guaranteed.

Put right by: Recall the vehicles that are likely to be affected and replace the front seatbelts that are likely to be affected.

DVSA R/2017/14778 vehicles affected in the UK

🏛️ June 2017Cars built February 2014 to February 2017

Starting current limiter may overload

Where the car incurs severe engine damage resulting in the engine failing to turn over (engine seizure) and if the driver repeatedly attempts to start the engine despite the engine not cranking the very high electrical current could lead to overheating of the starting current limiter and the potential for a fire.

Put right by: Recall the vehicles that are likely to be affected and install an additional fuse in the electrical line to the starter.

DVSA R/2017/09674,444 vehicles affected in the UK

🏛️ June 2017Cars built August 2014 to December 2016

Electric power steering motor defective

Contacts inside the electric power steering motor may not have been correctly formed. Failure of these contacts would cause the loss of power steering assistance.If this happens a warning lamp will illuminate

Put right by: Replace the electric power steering motor on affected vehicles.

DVSA R/2017/15916 vehicles affected in the UK

🏛️ April 2017Cars built March 2013 to December 2014

Steering coupling may become loose

The threaded connection for the steering column coupling to the steering rack pinion may not be tightened correctly. Overtime time the connection could loosen and fall out allowing a situation where the steering control could be lost.

Put right by: Recall the vehicles that are likely to be affected and check the tightness of the threaded connection for the steering column coupling. Where necessary the joint will be removed and inspected. If not serviceable it will be replaced. A new threaded connection will be used where the tightness is not correct.

DVSA R/2017/1347 vehicles affected in the UK

🏛️ April 2017Cars built January 2004 to March 2017

Faulty control unit may cause vehicle to perform outside specification

Where a control unit coding was updated in a workshop between 3 December 2016 and 5 December 2016 the coding may not correspond to the specification and may trigger unplanned action in the vehicle. The safety and emissions systems may not react as design intent.

Put right by: Recall the vehicles that are likely to be affected and update the software in the corresponding control units.

DVSA R/2017/12442 vehicles affected in the UK

🏛️ February 2017

Loss of power steering support

It has been identified that the pins within the electric power assisted steering control unit may not have been contact welded correctly. This can result in an open circuit which will lead to a loss of power steering assistance and possible loss of control of the vehicle.

Put right by: Recall all affected vehicles and replace electric power assisted steering.

DVSA R/2017/07314 vehicles affected in the UK

🏛️ January 2017Cars built August 2015 to September 2015

Flammable vapour may ignite

The threaded connection on the Adblue filler pipe and ground cable for the fuel tank access may not be correctly tightened on vehicles with diesel engine OM651. It is possible for the connection to work loose and fail thereby causing the possibility of an electrostatic discharge. In extreme conditions there is a possibility of fire.

Put right by: Recall the vehicles that are likely to be affected to check and where necessary correct the connection of the Adblue filler pipe and ground cable.

DVSA R/2016/2985 vehicles affected in the UK

🏛️ September 2016Cars built December 2013 to April 2016

Fuel may leak

A high pressure fuel line to the fuel pump may work looses and allow diesel to leak

Put right by: On affected vehicles replace fuel line

DVSA R/2016/1903,591 vehicles affected in the UK

🏛️ April 2016Cars built March 2006 to November 2009

1. airbags may fail to deploy or 2. airbags may deploy without obvious cause

Due to corrosion of internal components the SRS control unit may fail. This will deactivate SRS components such as airbags or in rare instances cause an SRS component to unintentionally deploy.

Put right by: On affected vehicles replace the SRS control Unit.

DVSA R/2016/03431,091 vehicles affected in the UK

🏛️ March 2016Cars built May 2014 to November 2014

Risk of fire

The threaded connection of the battery ground may not be tightened correctly due to deviation in the tightening angle monitoring. In the event of a poor ground of the battery line a temporarily higher transition resistance could lead to the formation of sparks and local heating. This would increase the risk of fire.

Put right by: Recall the vehicles that are likely to be affected and check the ground connection of the battery line and if necessary replace the ground connection.

DVSA R/2016/03227 vehicles affected in the UK

🏛️ January 2016Cars built October 2015 to November 2015

Risk of fire

The high pressure fuel lines have not been manufactured to the correct specification which over time can lead to crack formation and fuel leaking. Fuel escaping in the presence of an ignition source could lead to fire.

Put right by: Recall the vehicles that are likely to be affected and replace the high pressure fuel lines.

DVSA R/2015/2591,327 vehicles affected in the UK

🏛️ November 2015Cars built July 2015 to September 2015

Engine may fail

The camshaft could break and damage the engine due to it not being manufactured to the correct specification. If the condition occurs it will lead to a sudden loss of drive thereby increasing the risk of a collision.

Put right by: Recall the vehicles that are likely to be affected and replace the exhaust camshaft.

DVSA R/2015/210395 vehicles affected in the UK

🏛️ September 2015Cars built April 2014 to September 2014

Oil may leak

On affected vehicles the transmission oil cooler return pipe may not have been mounted correctly. It is possible vibration may cause the pipe to fail and leak oil.

Put right by: Correctly mount oil cooler pipes.

DVSA R/2015/1505,389 vehicles affected in the UK

🏛️ July 2015Cars built June 2014 to June 2014

Front seats may not be secured acording to specification

The threaded connections to the rear of the front seats may not have been tightened correctly. In the case of a serious vehicle accident the seat connection may not function as designed resulting in an elevated risk of injury to the occupants.

Put right by: Recall the vehicles that are likely to be affected to check and where necessary correct the torque of the connections at the rear of the front seats.

DVSA R/2015/14910 vehicles affected in the UK

🏛️ July 2015Cars built August 2013 to April 2014

Passenger airbag may not function as intended

On affected vehicles a control unit under the front passenger seat may not have been correctly installed. This may adversely affect the seat occupancy recognition system.The seat occupancy recognition system may not correctly identify seat occupancy and may incorrectly activate or deactivate the air bag. Activation status will be notified by the passenger air bag warning system.

Put right by: Check control unit installation and correct if necessary. Where necessary replace passenger seat cushion.

DVSA R/2015/12011 vehicles affected in the UK

🏛️ July 2015Cars built October 2014 to October 2014

Side restraint system may not function as intended

The threaded connection of the crash sensors at the B-pillars may not be to specification. There is a possibility that the side restraint system may trigger too late or not at all in the event of a side impact which may pose an increased risk of injury for the vehicle occupants.

Put right by: Recall the vehicles that are likely to be affected to check and where necessary correct the threaded connection of the crash sensors at both the left and right B-pillars.

DVSA R/2015/1213 vehicles affected in the UK

🏛️ May 2015Cars built March 2014 to August 2014

Engine may stall

It is possible on certain petrol (gasoline) vehicles that the mounting hooks for the jet pump may not have been manufactured to specification. The jet pump is mounted on top of the fuel delivery module in the fuel tank and if the mounting hooks were to fail it will result in the jet pump detaching from the module and a possible fall in fuel pressure. This fall in fuel pressure could either result in the engine not starting or in worst cases causing the engine to cut out or stall. This could affect the drivers ability to control the vehicle.

Put right by: Recall all likely to be affected vehicles to install an additional clip to the jet pump.

DVSA R/2015/0811,364 vehicles affected in the UK

🏛️ May 2015Cars built April 2014 to February 2015

Vehicle may shut down

Due to a software code error it is possible that the 1.6ltr 4 cylinder diesel engines may suffer a stalling situation during the warm-up phase and where the engine is subjected to high load requirements. However if the engine does stall it can be immediately restarted and the vehicle can be driven without restrictions. Furthermore all safety systems remain fully functional.

Put right by: Recall all affected vehicles to update the engine control unit software.

DVSA R/2015/083437 vehicles affected in the UK

🏛️ January 2015Cars built February 2014 to November 2014

Oil may leak

On certain diesel engines the 'O' ring may not have been produced to the correct specification. This may allow oil to leak and contaminate the environment. If excessive oil is lost engine damage may occur.

Put right by: On affected vehicles replace the chain tensioner sealing ring.

DVSA R/2014/18261,672 vehicles affected in the UK

🏛️ September 2014Cars built January 2014 to September 2014

Steering control may be affected

It is possible that the steering column coupling lock may not have been installed correctly. The driver will recieve warning of the issue by noise. However in extreme circumstances it is possible that steering control of the vehicle could be affected.

Put right by: Recall all affected vehicles to check and if required replace the steering coupling.

DVSA R/2014/1138,140 vehicles affected in the UK

🏛️ March 2013

Fuel may leak

The flange of the fuel filter may leak due to a non-compliance in the supplier's production process. Should this occur a fuel odour may arise or fuel escape.

Put right by: Recall the vehicles that are likely to be affected to replace the fuel filter.

DVSA R/2013/031806 vehicles affected in the UK

🏛️ January 2013Cars built August 2011 to December 2011

Engine may cut out

Cracks in the charge air hose may possibly occur. This may subsequently lead to the engine switching to limp-home mode. In rare individual cases the engine shutting off cannot be ruled out.

Put right by: Recall the vehicles that are likely to be affected to replace the charge air hose.

DVSA R/2012/1596,090 vehicles affected in the UK

🏛️ January 2012Cars built January 2009 to December 2011

Fuel may leak

Fuel leaks in the plug area of the drain opening may occur at the fuel filter with integrated fuel heaters. Fuel can escape and is noticeable to the customer due to a corresponding diesel odour. The diesel can reach the road and as a result friction between the tyres and road surface may be decreased.

Put right by: Check filter and replace as necessary.

DVSA R/2011/17244,596 vehicles affected in the UK

Recall data published by the Driver and Vehicle Standards Agency under the Open Government Licence v3.0. A recall listed here may not apply to every car of this model: the build dates and the registration check are what decide it.

Mercedes-Benz C-Class timing chain, and service intervals

A timing chain has no change interval, which is not the same as lasting for ever. Listen for it on a used C-Class, and check the oil has been changed on time. These are the figures UK specialists work to.

Timing chainChain

W204, W212, W906, 2.1 CDI, OM651

No fixed replacement interval

Rear-mounted timing chain stretches over time, typically at 100,000-150,000 km under normal maintenance. No fixed interval. The tell-tale is a cold-start rattle that disappears after 10-20 seconds. Because the chain sits at the back of the engine, replacement is a major job.

Automatic gearbox oil

7G-TRONIC, 722.9, 7 SPEED

40,000 miles or 4 years, whichever comes first

Mercedes initially claimed 'filled for life', which specialists call marketing over engineering. The recommendation is a fluid and filter change every 40,000 miles to prevent conductor plate failure, a GBP 800-1,200 repair. Some sources suggest 60,000 miles, so the shorter figure is recorded.

Automatic gearbox oil

9G-TRONIC, 725.0, 9 SPEED

60,000 miles or 6 years, whichever comes first

The published figure for the 725.0 is six years or 60,000 miles, whichever comes first. Other sources give the first factory change as roughly 60,000 km (about 37,000 miles) or 6 years, and forum consensus favours servicing at 40,000 miles, so treat 60,000 as the outer limit rather than a target.

Automatic gearbox oil

722.6, 5G-TRONIC, 5 SPEED

40,000 miles

Officially 'sealed for life' but independent specialists recommend ATF (MB 236.14 spec, which supersedes 236.10 and 236.12) and filter changes every 40,000 miles to head off valve body and conductor plate trouble. Capacity is about 7.5 litres. Fitted to most pre-2011 rear-wheel-drive Mercedes including the pre-2010 C, E and SLK.

Always confirm against the vehicle handbook. Intervals vary by engine, and several manufacturers revised theirs after failures in service.

Repair costs are typical UK ranges, not quotes. Actual cost depends on condition and garage.Data last verified: October 2026

Mercedes-Benz C-Class buying questions

What are the most common Mercedes-Benz C-Class problems?

Three stand out. Fuel system: piezo Delphi fuel injector failure leading to limp mode and severe misfires (typically 40000 to 80000 miles). Engine: oil cooler seals fail in the 'V' of the engine causing massive oil leaks (typically 60000 to 100000 miles). Engine: soft metal on the timing chain sprocket that drives the balance shaft on the M272 V6 (typically 60000 to 90000 miles). The full list above is grouped by generation, with typical mileage and a rough repair cost for each.

Which Mercedes-Benz C-Class years should I avoid?

No Mercedes-Benz C-Class year is a write-off, but the W204 / C-Class (2007 to 2014) carries the most serious faults: fuel system, engine, electrics, brakes, gearbox and suspension. The W202 (1993 to 2008) has high-severity faults on record too. Year matters less than whether the specific car has had the known fixes, so check the history for them.

What should I check when viewing a used Mercedes-Benz C-Class?

Ask the seller about the fuel system and engine faults on this page and whether they have been fixed, with invoices. On the test drive watch for engine management light, oil pooling in the engine valley and engine Management Light (EML) on. Read the MOT history for repeat advisories, then paste the advert into the free check, which reads it against all 23 known faults before you travel. Check a Mercedes-Benz C-Class advert →

Are there any recalls on the Mercedes-Benz C-Class?

The DVSA lists 139 safety recalls for the Mercedes-Benz C-Class issued between 2012 and 2025. The most recent, from September 2025, is "SRPC2512 - Bolting of Steering Coupling". Recall work is done by the manufacturer, and GOV.UK says you will not usually have to pay for it. This list is by model, so it cannot tell you whether one particular car has had the work: the free GOV.UK MOT history check shows a recall status from the registration where the manufacturer shares it, and a franchised dealer can check the VIN.

What is the real MPG of a Mercedes-Benz C-Class?

Owners report 42.0 mpg on average across the Mercedes-Benz C-Class engines with data, about 84% of the official combined figure. The gap between official and real-world economy varies a lot by engine, so the Real MPG page lists every engine and generation separately, from 4,233 owner submissions. Mercedes-Benz C-Class Real MPG by engine →

Looking at a Mercedes-Benz C-Class right now? Check the advert before you go and see it.

Where this Mercedes-Benz C-Class fault data comes from

If you used to check the Honest John “Good & Bad” section before the site closed in 2026, this page is where that information now lives. We rebuilt the Mercedes-Benz C-Class owner-report history from the archived Honest John dataset, added our own research, specialist and owner-club sources and DVSA recall data, and we keep it free. Each fault above is badged with its source. The same data feeds our free advert check, which reads a listing against every known fault for the exact engine and year.

CarAdCheck is not affiliated with Honest John or Volkswagen Financial Services. What happened to Honest John, and where each feature lives now.

Before you go and see it

Knowing what a Mercedes-Benz C-Class goes wrong with is half of it. The rest is reading the advert and checking the car's history before you hand any money over.

How to haggle for a used car: negotiate the price with what its records show13 min read HPI check vs carVertical: which is better, and our pick for a UK car9 min read MOT advisories explained: how to check them, and which ones should worry you12 min read

All buyer's guides →

Other Mercedes-Benz models

E-Class25 known faults A-Class13 known faults SLK7 known faults M-Class4 known faults