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Known Faults Database

BMW 1 Series problems, reliability and years to avoid

If you are considering buying a used BMW 1 Series, these are the common problems worth knowing about first. Our garage database tracks 16 known faults for this model, 13 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 BMW 1 Series reliable?

The BMW 1 Series has 16 known faults in our database across 2 generations, 13 of them rated high severity. The most serious are engine (screws for the housing of the variable camshaft timing) and engine (the N43 direct-injection petrol replaced the N46 in March 2007 and came as a 1.6 (N43B16). 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 BMW 1 Series 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.

E81/E87/E82/E88, 2004 to 20118 high severity
9 known faults, the serious ones in the engine, fuel system, electrics, gearbox
F20/F21, 2011 to 20195 high severity
7 known faults, the serious ones in the engine, gearbox

Years and engines with a serious known fault

  • 2005 to 2012, 6-cylinder petrol: N51, N52 (from 2005) and N55 (from 2009): screws for the housing of the variable camshaft timing
  • 2007 to 2011, 1.6i / 2.0i (N43 Petrol) - 116i, 118i, 120i: the N43 direct-injection petrol replaced the N46 in March 2007
  • 2011 to 2017, 1.6 Turbo Petrol (N13): the N13 1.6 turbo petrol engine is prone to timing chain issues
  • 2007 to 2011, 4-cylinder Petrol (N43): repeated problems with coil packs and injectors are common on 4-cylinder petrol
  • 2007 to 2011, All Petrol and Diesel: the connection between the B+ cable and the Power Distribution Box can become
  • 2007 to 2011, Manual Diesel (118d, 120d): dual Mass Flywheel (DMF) and clutch failures are increasingly common on manual

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

Generation 1 of 29 known faults · 11 owner reports · 4 good notes

BMW 1 Series E81/E87/E82/E88 (2004 to 2011) problems

Engine/EmissionsHigh severity🔧 Specialist mechanic

The N47 timing chain sits at the REAR of the engine, next to the flywheel and gearbox, so getting to it means removing the gearbox or dropping the engine. The original chain and plastic guides were underspecified: guides break up, the chain stretches and can snap, bending valves and in bad cases destroying the engine. Debris from the guides can also block the oil pump pickup and wipe the bearings. BMW issued revised parts (redesigned guides and crankshaft) under a quality-enhancement programme and later builds fail less often, but revised N47T engines still fail, so a late build date is not a clean bill of health. Specialist chain jobs start around 1350-2500 pounds; after a snap, a rebuild runs 3000-6500 pounds. The N47 arrived in 2007 and gave way to the B47 across 2014 and 2015 (the 5 Series first, then the 1 Series and 3 Series; the X1 kept the N47 until the new model arrived in 2015), so a car from either changeover year needs its engine code confirming before this applies

Rough guide
£1350-6500

Typical symptoms

  • rhythmic scraping or metallic rattling from the REAR of the engine, near the bulkhead
  • engine management light or camshaft correlation fault codes
  • sudden loss of power or complete engine failure with no prior warning

Affected vehicles

Engines:
2.0d (N47 / N47T): 116d, 118d, 120d, 318d, 320d, 520d, X1
Typical mileage:
70000-110000 miles
10 more owner reports back this up
  • July 2017The timing chain on a 2011 BMW 118d M-Sport with an N47 engine failed at 114,000 miles despite regular servicing.
  • August 2016The timing chain of a 2013 BMW 116d N47 engine was replaced under warranty in 2015.
  • June 2016A 2008 BMW 120d N47 M Sport convertible needed a new timing chain at 42,000 miles, with BMW contributing to the £2,500 cost.
  • March 2016A 2007 BMW 118d N47 engine had a timing chain break at 100,000 miles, repaired by BMW for £2,500.
  • August 2015A 2010 BMW 120d with an N47 engine was recalled for inspection and potential replacement of the timing chain tensioner and chain.
  • August 2013A five-year-old N47 118d with 50,000 miles developed a noticeable timing chain rattle, with BMW contributing to the £2,350 repair.
  • July 2013A 2007 BMW 120d with an N47 engine experienced timing chain failure at 67,000 miles despite a full service history.
  • September 2012A 2008 BMW 118d with an N47 engine suffered a timing chain failure at 63,000 miles.
  • May 2012A 2007 BMW 118d auto with an N47 engine experienced timing chain failure at 74,000 miles.
  • March 2012A 2007 BMW 118d with an N47 engine had a timing chain failure at 59,000 miles.
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Engine/EmissionsHigh severity📝 Editorial

High Pressure Fuel Pump (HPFP) failure and severe turbo wastegate rattle

Rough guide
£800-2500

Typical symptoms

  • long cranking before engine starts
  • half engine light / limp mode on hard acceleration
  • loud metallic rattling from the exhaust side when lifting off the throttle

Affected vehicles

Engines:
3.0 Twin Turbo (N54)
Typical mileage:
60000-100000 miles
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Engine/EmissionsHigh severity💬 6 owner reports, 2013 to 2018

The N43 direct-injection petrol replaced the N46 in March 2007 and came as a 1.6 (N43B16, the 116i) and a 2.0 (N43B20, the 118i and 120i) - there was never an N43 1.8. It is prone to timing chain trouble: the chain can jump a cog, and the plastic chain guides break up, with the fragments sucked off the sump floor by the oil pickup so that the engine is starved of oil and seizes. Owners have reported it with no warning light beforehand. Failures are recorded on 2007, 2008, 2009, 2010 and 2011 cars, so there is no build date after which the engine is known to be safe.

Rough guide
£2500-7000

Typical symptoms

  • Metallic rattling noise from engine, especially on cold start
  • Loss of engine power
  • Engine seizing or cutting out unexpectedly
  • Engine management warning light

Affected vehicles

Engines:
1.6i / 2.0i (N43 Petrol) - 116i, 118i, 120i
Typical mileage:
20000-75000 miles
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ElectricalHigh severity💬 2 owner reports, 2016

Failures of the Engine Control Unit (ECU) have been reported on early petrol models, potentially leading to various electrical issues and engine running problems.

Rough guide
£800-1500

Typical symptoms

  • Engine running issues
  • Warning lights on dashboard
  • Battery drain (if related to alarm sensor unit)

Affected vehicles

Engines:
Early Petrol Models
Typical mileage:
Unknown miles
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Transmission/ClutchHigh severity💬 3 owner reports, 2012 to 2016

Dual Mass Flywheel (DMF) and clutch failures are increasingly common on manual diesel models, particularly the 118d and 120d. This often manifests as clutch judder and can lead to repeated failures.

Rough guide
£800-1500

Typical symptoms

  • Clutch judder, especially when pulling away
  • Vibrations through the pedal or cabin
  • Difficulty engaging gears
  • Excessive noise from the gearbox area

Affected vehicles

Engines:
Manual Diesel (118d, 120d)
Typical mileage:
50000-100000 miles
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BrakesMedium severity💬 4 owner reports, 2012 to 2016

Failures of ABS/DSC/DTC sensors and reluctor rings are common, leading to warning lights, erratic braking, and loss of power. This can be due to corrosion of the reluctor rings on the driveshafts.

Rough guide
£500-1500

Typical symptoms

  • DSC/DTC warning lights on dashboard
  • Brake system management failure
  • Jerky ride and sudden loss of power to wheels
  • Erratic gearchanges (if automatic)

Affected vehicles

Engines:
All
Typical mileage:
60000-140000 miles
1 more owner report backs this up
  • September 2018All four ABS sensors on a 2010 BMW 125i M Sport convertible failed before the car reached 30,000 miles.
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Fuel SystemHigh severity💬 4 owner reports, 2012 to 2019

Repeated problems with coil packs and injectors are common on 4-cylinder petrol engines from 2007 onwards. This can lead to misfires, rough running, and engine failure.

Rough guide
£500-2000

Typical symptoms

  • Engine misfires or rough running
  • Loss of power
  • Engine management light illuminated
  • Smoke or small flames from engine bay (in extreme cases)

Affected vehicles

Engines:
4-cylinder Petrol (N43)
Typical mileage:
20000-70000 miles
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Engine/EmissionsHigh severity💬 16 owner reports, 2014

Screws for the housing of the variable camshaft timing (VANOS) adjustment unit can loosen or break, leading to oil leaks, affected valve timing, and potential engine emergency mode or stalling. This was subject to a worldwide recall, with a specific UK DVSA recall (R/2014/068) for models built between 2009-2011.

Rough guide
£1000-2000

Typical symptoms

  • Engine emergency mode activated
  • Distinct change in engine running
  • Orange engine management warning lamp
  • Loss of power

Affected vehicles

Engines:
6-cylinder petrol: N51, N52 (from 2005) and N55 (from 2009)
Typical mileage:
Unknown miles
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ElectricalHigh severity💬 4 owner reports, 2017 to 2018

The connection between the B+ cable and the Power Distribution Box can become damaged by wear and heat, leading to high contact resistance and potential malfunction. This can result in a non-start situation or, in extreme cases, the engine cutting out without warning while driving. This was subject to a recall (R/2017/114).

Rough guide
£0 (free safety recall)

Typical symptoms

  • Non-start situation
  • Flickering instrument cluster (dash)
  • Engine misfire
  • Engine cutting out without warning

Affected vehicles

Engines:
All Petrol and Diesel
Typical mileage:
Unknown miles
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What owners report on the E81/E87/E82/E88

11 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 2019A 2009 BMW 118i auto with 32,566 miles needed multiple camshaft sensors and a nitrogen oxide sensor replaced, costing £1,235.
  • Engine · August 2019The timing chain on a 2008 BMW 118i with an N43 2.0 litre engine was reported to be rattling.
  • Engine · July 2019A 2008 BMW 118iES N43 engine had an oil leak from the camshaft cover gasket, requiring replacement seals and a new gasket.
  • Brakes · May 2019A 2013 BMW 118i cabrio with 28,000 miles needed a new brake servo, costing £850, which the supplying dealer paid.
  • Electrics · September 2018A 2007 BMW 1 Series was subject to a wiring recall, but parts were unavailable, preventing the dealer from completing the fix.
  • Electrics · May 2018A 2009 BMW 116i Sport lost power and stopped at 43,000 miles, needing replacement output shafts and rear pulse transmitters for £1,215.
  • Electrics · September 2015A 2007 BMW 118D experienced a starting problem where the starter motor would not engage.
  • Gearbox and clutch · April 2014The differential failed in a five-year-old BMW 118d M, with a replacement quoted at £1,300.
  • Bodywork · January 2014The frameless side windows on a 2007 BMW 118d 3-door stuck in cold weather, causing the motor to burn out three times.
  • Bodywork · December 2012Rainwater can enter the boot of the BMW 1 Series Coupe through cabin vent flaps, potentially affecting the electrics.
  • Engine · May 2012A BMW 135i N55 model experienced an engine warning light, rough running, and limp mode, requiring a fuel injection valve replacement.

What owners like about the E81/E87/E82/E88

4 notes
  • October 2016The M135i fitted with runflat tyres achieved a tyre life of 30,000 miles on both front and rear wheels.
  • July 2013The BMW 1 Series Convertible was voted the most reliable used sports car in a 2013 Which? survey.
  • The BMW 1 Series achieved a five-star Euro NCAP rating for occupant safety, with four stars for child safety.
  • The 118d model was recognised for its environmental performance, earning the World Green Car award at the 2008 New York Auto Show.
Generation 2 of 27 known faults · 17 owner reports · 4 good notes

BMW 1 Series F20/F21 (2011 to 2019) problems

Engine/EmissionsHigh severity🏛️ Official recall

The exhaust gas recirculation (EGR) cooler cracks and leaks coolant into the hot exhaust gas stream, where the glycol deposits can ignite and set fire to the inlet manifold. DVSA recall R/2018/341 covers it in the plain words "The EGR cooler may leak presenting a fire risk", and it is one of the largest recalls in the UK, covering 225,449 vehicles. The recall work is free, but cars slip through: the fix has been revised more than once, and an unrepaired or early-repaired car is the risk. Outside the recall, a failed cooler plus manifold is a four-figure job

Rough guide
£0 (free safety recall)

Typical symptoms

  • loss of coolant with no obvious external leak
  • smell of burning from engine bay
  • engine bay fire

Affected vehicles

Engines:
2.0d (B47 Engine) / 3.0d (N57)
Typical mileage:
40000-100000 miles
1 more owner report backs this up
  • September 2018A 2017 BMW 118d automatic with 25,000 miles randomly jerked while driving, which was resolved by replacing a blocked EGR valve under warranty.
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Engine/EmissionsLow severity💬 Owner reports

Plastic turbo charge pipe becomes brittle and shatters under boost pressure

Rough guide
£200-350

Typical symptoms

  • loud pop during hard acceleration
  • immediate loss of power and limp mode
  • hissing sound of escaping boost

Affected vehicles

Engines:
3.0 Single Turbo (N55)
Typical mileage:
40000-80000 miles
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Engine/EmissionsHigh severity🔧 Specialist mechanic

The N13 1.6 turbo petrol shares the timing chain weakness of its BMW stablemates but gets far less attention than the N47 diesel, so buyers rarely check for it. The chain, guides and tensioner wear early and typically announce themselves as drivetrain warnings and camshaft correlation fault codes rather than obvious noise. The engine is an interference design, so a chain that jumps bends the exhaust valves and turns a chain job into an engine rebuild. Chain work at a specialist is roughly 700-1500 pounds; valve damage takes it well beyond that

Rough guide
£700-2500

Typical symptoms

  • rattle from the front of the engine on cold start, sometimes for several seconds
  • drivetrain error message and engine management light
  • camshaft correlation fault codes stored
  • rough running or misfire once the chain has worn

Affected vehicles

Engines:
1.6 Turbo Petrol (N13) - 114i, 116i, 118i
Typical mileage:
50000-100000 miles
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Transmission/ClutchHigh severity💬 3 owner reports, 2016 to 2021

Clutch and Dual Mass Flywheel (DMF) failures have been reported on manual diesel models, sometimes at low mileages. This can lead to the clutch seizing.

Rough guide
£800-1500

Typical symptoms

  • Clutch seizing or failing to engage
  • Clutch judder
  • Difficulty changing gears

Affected vehicles

Engines:
Manual Diesel (116d, 118d)
Typical mileage:
12000-50000 miles
1 more owner report backs this up
  • October 2019A 2017 BMW 1 Series diesel experienced dual mass flywheel failure, which also caused damage to the clutch.
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Engine/EmissionsHigh severity💬 5 owner reports, 2016 to 2019

The N13 1.6 turbo petrol engine is prone to timing chain issues, including plastic tensioners breaking up and fragments falling into the sump, leading to oil starvation and catastrophic engine failure. Timing chain stretching has also been reported.

Rough guide
£2500-6000

Typical symptoms

  • Metallic rattling noise from engine
  • Red warning lights on dashboard
  • Loss of engine power or engine failure
  • Engine management light illuminated

Affected vehicles

Engines:
1.6 Turbo Petrol (N13)
Typical mileage:
25000-66000 miles
2 more owner reports back this up
  • July 2020A 2016 BMW 118i with only 23,000 miles needed a new timing chain due to stretching.
  • February 2020A 2014 BMW 116i at 50,000 miles suffered timing chain, guides, and oil pump failure due to low oil, costing £685 after contributions.
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Engine/EmissionsHigh severity💬 3 owner reports, 2018 to 2019

The B38 1.5 3-cylinder engine has reported issues with piston collapse and timing chain failure, leading to catastrophic engine damage, sometimes at very low mileages.

Rough guide
£7000-10000

Typical symptoms

  • Sudden loss of engine power
  • Engine knocking or unusual noises
  • Engine failure or seizing
  • Engine management light illuminated

Affected vehicles

Engines:
1.5 3-cylinder (B38)
Typical mileage:
20000-35000 miles
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ElectricalMedium severity💬 2 owner reports, 2019

The iDrive infotainment system can suffer from persistent problems, including crashing, freezing, and the screen going blank. Dealers have sometimes struggled to resolve these issues, even after replacing the unit.

Rough guide
£500-1500

Typical symptoms

  • iDrive screen going blank or showing only BMW logo
  • Infotainment system crashing or freezing
  • System turning off and on randomly while driving
  • Difficulty connecting mobile phone

Affected vehicles

Engines:
All
Typical mileage:
Unknown miles
1 more owner report backs this up
  • November 2018A 2017 BMW 135i had faults including a poorly fitted seat leg extender, a boot that would not close, and iDrive system crashes.
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What owners report on the F20/F21

17 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.

  • Electrics · October 2019A 2012 BMW 116i had recurring Drive Train Warning Light problems that the dealer struggled to resolve.
  • Engine · October 2019A 2015 BMW 1 Series lost power and required Vanos unit replacements, with the owner paying £285 plus VAT after warranty contribution.
  • Fuel system · January 2019A BMW 1 Series diesel engine failed at 100,000 miles, requiring a new high-pressure fuel pump, injectors, and fuel rail for £3,000 to £4,000.
  • Bodywork · May 2018A 2016 BMW M140i developed paint blisters on its side and rear panels, with small clusters appearing without puncture marks.
  • Cooling · May 2018A 12-month-old BMW 140i suffered radiator and air conditioning condenser damage from a stone penetrating the front grille, costing over £1,000.
  • Gearbox and clutch · April 2018A 2016 BMW 118i Sport had a stiff and clunky manual gearchange into first and second gears, exacerbated by a heavy clutch.
  • Interior · January 2018A BMW M140i experienced a resonance issue when driving at speeds between 65 and 70mph.
  • Exhaust · October 2017A 2017 BMW M140i developed a rattle from its rear exhaust system, traced to an isolating valve in the nearside exhaust pipe.
  • Gearbox and clutch · September 2017An 81,000-mile BMW 1 Series manual diesel XDrive had difficulty selecting first gear from stationary, suggesting a dual mass flywheel issue.
  • Cooling · July 2017A 2016 BMW M140i, bought new nine months prior, had persistent air conditioning problems due to a leaking charge air cooler.
  • Engine · May 2017A late 2015 BMW 118i developed a noticeable change in engine noise and slight steering wheel vibration between 1,800 and 2,000 rpm.
  • Exhaust · April 2017The catalytic converter heat shield on a 27,000-mile 2013 BMW 116i came loose, with replacement quoted at £835.93.
  • Electrics · July 2016A 2015 BMW 1 Series with 3,500 miles experienced intermittent instrument display failure, resetting after ignition cycle.
  • Brakes · April 2016A 2014 BMW 120d xDrive M-Sport with 13,500 miles had water in the braking system, requiring a new DSC hydro unit.
  • Electrics · July 2015A 2013 BMW 114i experienced problems over 15,000 miles, including non-working front windscreen washers and an Amber Warning Drivetrain light.
  • Brakes · March 2014The brakes on an 18,000-mile 2014 BMW 116i failed completely, with the brake pedal becoming hard.
  • Suspension and steering · July 2013A BMW M135i was off the road for at least five weeks due to a parts shortage for its front suspension after pothole damage.

What owners like about the F20/F21

4 notes
  • The BMW 1 Series achieved a five-star Euro NCAP result, with 91% for adult safety and 83% for child safety.
  • The BMW 1 Series offers a great range of both diesel and petrol engines.
  • The BMW 1 Series features a high-tech yet intuitive navigation and media system.
  • This model offers a very smooth ride quality and responsive handling characteristics, enhancing the overall driving experience.

Sellers rarely admit these faults outright

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BMW 1 Series recalls

Recall work is done by the manufacturer, and GOV.UK says you will not usually have to pay for it. These are the 28 DVSA recalls for the 1 Series, 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.

🏛️ January 2026Cars built August 2007 to October 2013

Replace the Driver's Airbag - Takata PSDI-5

Affected vehicles may be fitted with a drivers airbag which may deploy with too much explosive force causing sharp metal fragments to be released into the cabin. It has the potential to fatally or seriously injure vehicle occupants.

Put right by: Affected vehicles will have the airbag replaced.

DVSA R/2025/32746,746 vehicles affected in the UK
🏛️ December 2025Cars built February 2007 to September 2013

Takata Driver and/or Passenger Airbag Recall (Global VINs)

Affected vehicles are already included in Safety Recalls within the markets they have previously resided in. The vehicles may be fitted with a driver and/or passenger airbag/s which if deployed may do so with excessive force causing sharp metal fragments to be released this may cause serious injury which could prove fatal to people in the vicinity.

Put right by: Vehicles will have the affected airbags checked and if necessary replaced.

DVSA R/2025/349867 vehicles affected in the UK
🏛️ October 2025Cars built August 2025 to September 2025

Seat Belt Rear Outer Seats

On affected vehicles either one or both of the outer most rear seats may not have been manufactured correctly and the sensitivity sensor may be deformed. If the sensor is not functioning correctly there is a risk the seat belt may not operate as intended.

Put right by: On affected vehicles the affected seatbelts will be checked and replaced.

DVSA R/2025/4434,423 vehicles affected in the UK
🏛️ October 2024Cars built November 2007 to August 2009

Check Driver's Airbag for Conversion Takata SDI & PSDI-5

Affected vehicles may have had a retrofit or conversion of the airbag using a previously recalled airbag variant which if deployed may do so with excessive force causing sharp metal fragments to be released this may cause serious injury possibly fatal to people in the vicinity. The original factory fitment airbag for the vehicle is not affected.

Put right by: Vehicles will have the airbag checked and if necessary replaced.

DVSA R/2024/403400 vehicles affected in the UK
🏛️ May 2024Cars built September 2009 to July 2011

Replace VANOS bolts N51 N52 N55

On affected vehicles overtime the aluminium screws can loosen or break on the adjustable variable camshaft timing (VANOS) units potentially resulting in engine emergency mode being activated.

Put right by: On affected vehicles the eight aluminium screws will be replaced if evidence of faulty screws is found then the VANOS adjustment unit will also be replaced.

DVSA R/2024/191439 vehicles affected in the UK
🏛️ August 2022Cars built February 2015 to March 2018

Undetected EGR System leaks may cause thermal activity in the intake manifold

Undetected EGR System leaks may cause thermal activity in the intake manifold.

Put right by: The engine management control unit (DDE) will be programmed with improved software incorporating the latest OBD functionality.

DVSA R/2022/255645,490 vehicles affected in the UK
🏛️ December 2021Cars built October 2021 to October 2021

The material quality of the screws used for seat belts and rear seats may not be to specifications.

The material quality of seat and seatbelt screws may not be according to specification.

Put right by: On the affected vehicles the screws will be replaced in specific locations on the seat belts or rear seats.

DVSA R/2021/44238 vehicles affected in the UK
🏛️ March 2021Cars built April 2004 to May 2011

The blower regulator wiring could be damaged and could lead to partial contact of individual wire strands

The blower-regulator wiring could be damaged and could lead to partial contact of individual wire strands.

Put right by: The blower regulator wiring harness will be inspected and a new part will be installed additional components will be replaced if necessary.

DVSA R/2021/064724,044 vehicles affected in the UK
🏛️ February 2021Cars built February 2015 to October 2018

The exhaust gas recirculation cooler could leak over time

Leaking glycol coolant could create in combination with soot and oil sediments in the EGR module ignitable deposits.

Put right by: The EGR cooler will be internally inspected with an endoscope and replaced if evidence of leaking is found.

DVSA R/2021/037127,776 vehicles affected in the UK
🏛️ August 2020Cars built October 2014 to June 2017

The exhaust gas recirculation module cooler could leak over time

The Exhaust Gas Recirculation (EGR) Module cooler could leak over time

Put right by: The EGR cooler will be inspected on the affected vehicles and replaced if evidence of leaking is found.

DVSA R/2020/179142,256 vehicles affected in the UK
🏛️ July 2020Cars built February 2020 to February 2020

Camshaft support housing bearing caps may become loose

It is possible that the camshaft bearing cap screws could come loose on the affected vehicles.

Put right by: Check and replace camshaft support housing or complete cylinder head as required.

DVSA R/2020/19139 vehicles affected in the UK
🏛️ April 2020Cars built January 2020 to March 2020

The driver's air bag fabric could be damaged by the air bag cover during deployment

This airbag fabric could be damaged by the airbag cover during deployment.

Put right by: On the affected vehicles the drivers airbag will be replaced.

DVSA R/2020/1101,121 vehicles affected in the UK
🏛️ December 2018Cars built November 2011 to February 2015

Exhaust gas recirculation module cooler could leak

The EGR cooler may leakpresenting a fire risk

Put right by: A visual inspection of the EGR cooler to check for leaks and excessive build-up of deposits. The EGR cooler will be replaced on all affected vehicles

DVSA R/2018/341450,898 vehicles affected in the UK
🏛️ November 2018Cars built July 2014 to September 2017

Exhaust gas recirculation cooler could potentially leak over time

The EGR cooler may leakpresenting a fire risk.

Put right by: The EGR cooler will be replaced with an improved version.

DVSA R/2018/258307,204 vehicles affected in the UK
🏛️ October 2018Cars built May 2018 to May 2018

Software fault in crankshaft sensor

The affected vehicles may be equipped with a crankshaft sensor with a software fault.

Put right by: On the affected vehicles the crankshaft sensor will be replaced with a new version.

DVSA R/2018/2603,284 vehicles affected in the UK
🏛️ August 2018Cars built May 2018 to July 2018

Software fault with crankshaft sensor

The affected vehicles may be equipped with a crankshaft sensor with a software fault. The crankshaft sensor cannot process the signal values from the crankshaft transmitter due to an improper firmware level. The firmware does not compensate sufficiently the temperature gradients and the magnetic field strength of the sensor electronic. If the crankshaft sensor cannot process the signal values from the transmitter the Digital Diesel Electronic (DDE) will notice that and change to the emergency operation mode. The emergency mode will be displayed by the check control message engine malfunction. The driver may notice a rough running engine and a reduced driving power (70%). However an engine stalling during driving conditions cannot be excluded.

Put right by: On the affected vehicles the crankshaft sensor will be replaced with a new version.

DVSA R/2018/2118,050 vehicles affected in the UK
🏛️ June 2018Cars built October 2006 to June 2011

Plug in contact cable may malfunction

The positive battery cable to the front distribution box behind the glove box can become damaged by vibrations and frictional corrosion. This may cause a loss of electrical connection to the distributions box. Symptoms include being unable to gain entry or start the car but the most common are a flickering instrument panel or uneven engine performance. However if the electrical connection is completely lost this will also affect the operation of the vehicles lighting systems; e.g. sidelights or hazard warning lamps.

Put right by: On affected vehicles carry out a suitable repair to the battery cable positive cable.

DVSA R/2018/132311,848 vehicles affected in the UK
🏛️ February 2018

Backrest could fold forward under heavy load

The latching element of the Easy Entry Kit on the driver's seat does not lock correctly into the lower swinging arm. As a result the backrest could fold under heavy load such as in a collision or unsecured load in the rear and harsh braking.

Put right by: The vehicle that is likely to be affected will be recalled and a new seat mechanism fitted. R/2018/027 refers.

DVSA R/2018/0271 vehicles affected in the UK
🏛️ April 2017Cars built December 2010 to April 2011

Driveshaft universal joint may break

Due to insufficient strength the front universal joint in the rear front universal joint of the rear prop shaft may fail.

Put right by: On affected vehicle replace the universal joint with a modified version

DVSA R/2017/13221,698 vehicles affected in the UK
🏛️ April 2017Cars built December 2009 to October 2011

Plug in contact cable may malfunction

It is possible that the connection between the B+ cable and the Power Distribution Box can become damaged by wear and heat which is caused by high current flow and high contact resistance. Normally this will result in a non-start situation after parking the vehicle. However it is possible that this could in extreme cases occur whilst the vehicle is in motion. The driver should be made aware of the issue by flickering of the instrument cluster (dash) or an engine mis-fire; but if the driver does not then the engine could cut-out without warning.

Put right by: Recall all affected vehicles with petrol engines and replace the cable/connection with a more robust item.

DVSA R/2017/11436,410 vehicles affected in the UK
🏛️ December 2016Cars built September 2011 to December 2015

Power steering may not perform correctly

The electrical contact of the Electronic Control Unit (ECU) of the Electric Power Steering (EPS) is not sufficiently robust over the service life of the vehicle. As a result the power steering support may fail possibly leading to disconcerting driving situation for the driver. Additionally in a few cases a localised thermal event cannot be excluded.

Put right by: Recall the vehicles that are likely to be affected and replace the steering gear (EPS).

DVSA R/2016/30041 vehicles affected in the UK
🏛️ June 2015Cars built September 2013 to March 2015

Engine may stall

The in tank fuel pump may contain sub components that have not been correctly nickel plated. This may cause excessive friction leading to the fuel pump being inoperative. The driver may experience a no start condition or in the worst case an engine stall. A warning lamp and error message will display. Steering and brakes will still function.

Put right by: Recall the vehicles that are likely to be affected and replace the in tank fuel pump with a modified version.

DVSA R/2015/1093,292 vehicles affected in the UK
🏛️ July 2014Cars built September 2009 to November 2011

Engine emergency mode may be activated during driving

The screws retaining the variable camshaft timing (VANOS) housing may loosen and under certain circumstances the heads may break off. This can lead to the VANOS leaking oil internally and adversely affect the valve timing adjustment. If found to deviating from targeted data the engine emergency mode will be activated. This will be indicated by a distinct change in engine running. The orange engine management warning lamp and a check message; On vehicles with N51/N52 engines this will appear at ignition recycle on N55 engine it will display immediately.

Put right by: Repalce bolted connection of the VANOS adjustment unit

DVSA R/2014/0682,967 vehicles affected in the UK
🏛️ September 2013Cars built May 2009 to November 2009

Possibility of fire

Due to a fault with an internal connection within the Fuel Filter Heater (FFH) it is possible that during temperatures below freezing the FFH can remain permanently activated. This will normally cause the FFH to overheat which will result in the inability to start the vehicle due to a flat battery. This can occur even when the ignition is turned off. However in extreme cases it could cause a vehicle fire.

Put right by: Recall all affected vehicles to replace the FFH.

DVSA R/2013/09521,502 vehicles affected in the UK
🏛️ July 2013Cars built February 2013 to June 2013

Loss of drive

It is possible that over a period of time the bolt securing the clutch cover/pressure plate may become loose. The drive should be warned of this by the behaviour of the clutch noise from it or inability to select gears. Under certain conditions complete loss of drive could occur which could place the driver and occupant of the vehicle in a prone position.

Put right by: Recall all affected vehicles and replace the clutch bolts.

DVSA R/2013/0804 vehicles affected in the UK
🏛️ April 2013

Engine may cut out

It is possible that the connection between the B+ cable and the Power Distribution Box can become damaged by wear and heat which is caused by high current flow and high contact resistance. Normally this will result in a non-start situation after parking the vehicle. However it is possible that this could in extreme cases occur whilst the vehicle is in motion. The driver should be make aware of the issue by flickering of the instrument cluster (dash) or an engine mis-fire; but if the driver does not then the engine could cut-out without warning.

Put right by: Recall all affected vehicles and replace the cable/connection with a more robust item.

DVSA R/2013/02436 vehicles affected in the UK
🏛️ July 2012Cars built June 2007 to December 2011

EPS may not perform as specified

Due to a component in the integrated control module not being to specification it is possible power steering assistance may fail. If this happens the EPS warning lamp will illuminate and a check control message will appear on the dashboard display. Directional control will be maintained albeit with additional driver input.

Put right by: Recall vehicles likely to be affected to replace the steering box.

DVSA R/2012/0811,402 vehicles affected in the UK
🏛️ October 2011Cars built August 2008 to June 2009

Risk of fire

Moisture may enter the fuel filter heater at an electrical connection. Should this occur it can cause a discharge of the battery causing non starting of the vehicle. Also if it occurs whilst the vehicle is in motion it could result in a fire when the vehicle is left unattended.

Put right by: Recall all affected vehicles and replace the fuel filter heater.

DVSA R/2011/12321,923 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.

BMW 1 Series 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 1 Series, and check the oil has been changed on time. These are the figures UK specialists work to.

Timing chainChain
N47, 2.0D, 2.0 DIESEL
No fixed replacement interval

Rear-mounted timing chain stretches over time leading to catastrophic snapping. No fixed interval, but listen for a rhythmic scraping noise from the back of the engine on cold start. BMW's 2009 design modifications reduced the likelihood of failure but did not eliminate it.

Automatic gearbox oil
8-SPEED, 6-SPEED
60,000 miles or 8 years, whichever comes first

BMW claims the ZF gearbox is 'sealed for life', but ZF themselves (the manufacturer) prescribe fluid and filter changes. Published figures range from ZF's 100,000 km / 8 years guidance to specialist advice of 70,000-80,000 miles; 60,000 miles is recorded as the conservative end of that range.

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: September 2026

BMW 1 Series buying questions

What are the most common BMW 1 Series problems?

Three stand out. Engine: screws for the housing of the variable camshaft timing (VANOS) adjustment unit can loosen or break. Engine: the N43 direct-injection petrol replaced the N46 in March 2007 and came as a 1.6 (N43B16 (typically 20000 to 75000 miles). Engine: the N13 1.6 turbo petrol engine is prone to timing chain issues (typically 25000 to 66000 miles). The full list above is grouped by generation, with typical mileage and a rough repair cost for each.

Which BMW 1 Series years should I avoid?

No BMW 1 Series year is a write-off, but the E81/E87/E82/E88 (2004 to 2011) carries the most serious faults: engine, fuel system, electrics and gearbox. The F20/F21 (2011 to 2019) 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 BMW 1 Series?

Ask the seller about the engine faults on this page and whether they have been fixed, with invoices. On the test drive watch for engine emergency mode activated, metallic rattling noise from engine, especially on cold start and metallic rattling noise from engine. Read the MOT history for repeat advisories, then paste the advert into the free check, which reads it against all 16 known faults before you travel. Check a BMW 1 Series advert →

Are there any recalls on the BMW 1 Series?

The DVSA lists 28 safety recalls for the BMW 1 Series issued between 2011 and 2026. The most recent, from January 2026, is "Replace the Driver's Airbag - Takata PSDI-5". 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 BMW 1 Series?

Owners report 42.2 mpg on average across the BMW 1 Series engines with data, about 78% 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 4,453 owner submissions. BMW 1 Series Real MPG by engine →

Looking at a BMW 1 Series right now? Check the advert before you go and see it.

Where this BMW 1 Series 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 BMW 1 Series 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 BMW 1 Series 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 readHPI check vs carVertical: which is better, and our pick for a UK car9 min readMOT advisories explained: how to check them, and which ones should worry you12 min read
All buyer's guides →

Other BMW models

3 Series44 known faults5 Series17 known faultsX57 known faultsX64 known faults