Known Faults Database

BMW X6 problems, reliability and years to avoid

If you are considering buying a used BMW X6, these are the common problems worth knowing about first. Our garage database tracks 4 known faults for this model, 4 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 X6 reliable?

The BMW X6 has 4 known faults in our database, 4 of them rated high severity. The most serious are engine (the Exhaust Gas Recirculation (EGR) cooler can leak glycol) and engine (screws for the housing of the variable camshaft timing). 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 X6 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.

Years and engines with a serious known fault

  • 2010 to 2013, Pre-B47 diesels: 2.0d (N47) and 3.0d (N57): the Exhaust Gas Recirculation (EGR) cooler can leak glycol
  • 2005 to 2012, 6-cylinder petrol: N51, N52 (from 2005) and N55 (from 2009): screws for the housing of the variable camshaft timing
  • 2011 to 2012, 8- and 12-cylinder turbocharged petrol (N54/N63): the circuit board for the electric auxiliary water pump can overheat
  • 2014 to 2018, 2.0d (B47 Engine) / 3.0d (N57): the exhaust gas recirculation (EGR) cooler cracks

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

Generation 1 of 13 known faults

BMW X6 E71 (2011 to 2012) problems

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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Engine/EmissionsHigh severity💬 23 owner reports, 2018 to 2019

The Exhaust Gas Recirculation (EGR) cooler can leak glycol, leaving soot deposits that smoulder, melt the inlet manifold and in some cases set the car on fire. Two DVSA recalls cover it and they are not the same action: R/2018/258 (November 2018) replaces the cooler outright on cars built from December 2013, and the wider R/2018/341 (December 2018) inspects the cooler and replaces it where needed on builds reaching back to around August 2010. This entry covers the earlier, pre-B47 half of that span: the N47 2.0d and N57 3.0d cars from 2010 to 2013 that R/2018/341 reaches but the replacement recall does not. Diesels from 2014 on carry the same fire risk under the B47 and N57 recall listing instead.

Rough guide
£0 (free safety recall)

Typical symptoms

  • Engine management light illuminated
  • Drivetrain malfunction warnings
  • Loss of power or limp mode
  • Smell of burning plastic or smoke from engine bay

Affected vehicles

Engines:
Pre-B47 diesels: 2.0d (N47) and 3.0d (N57)
Typical mileage:
30000-80000 miles
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Engine/EmissionsHigh severity💬 2 owner reports, 2012

The circuit board for the electric auxiliary water pump can overheat, potentially leading to smouldering or an engine compartment fire. This was subject to a US NHTSA recall affecting specific 8- and 12-cylinder turbocharged engines.

Rough guide
£0 (free safety recall)

Typical symptoms

  • Engine compartment smell of burning
  • Smoke from engine bay
  • Engine warning lights

Affected vehicles

Engines:
8- and 12-cylinder turbocharged petrol (N54/N63)
Typical mileage:
Any mileage miles
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Other years1 known fault · 1 owner report · 2 good notes

Other BMW X6 years: 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
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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.

  • Gearbox and clutch · January 2021A three-year-old X6 with 50,000 miles suffered differential failure due to water ingress; the warranty claim was rejected.

What owners like

2 notes
  • The X6 offers a good driving experience, especially considering its substantial size as an SUV.
  • This model commands a significant presence on the road, making a strong visual impact.

Sellers rarely admit these faults outright

We track 10 specific phrases sellers use in adverts to soft-pedal these exact issues. Paste any BMW X6 advert and we check it in seconds.

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BMW X6 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 X6, 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.

🏛️ December 2025Cars built August 2007 to August 2017

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/2025/3491,332 vehicles affected in the UK
🏛️ October 2024Cars built May 2014 to September 2017

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/2024/403318 vehicles affected in the UK
🏛️ September 2024Cars built October 2022 to August 2024

Integrated Braking System

On certain vehicles the Integrated Brake (IB) system may be impaired due to contamination between electrical contacts.

Put right by: Vehicles that may be affected by contamination are required to have the vehicle's software updated which can detect signal interference before it occurs. If symptoms are detected you should refrain from use of the vehicle and the affected Integrated Brake (IB) system component will be replaced.

DVSA R/2024/383818 vehicles affected in the UK
🏛️ May 2024Cars built April 2024 to April 2024

Seat Belt Warning (Front Seat Belts)

On affected vehicles the hall sensor in the driver and passenger front seat belt stalks may not have been correctly installed and it may indicate the seat belt is inserted correctly when it actually is not.

Put right by: On affected vehicles the seat belt stalks will be tested and replaced if necessary.

DVSA R/2024/26210 vehicles affected in the UK
🏛️ March 2024Cars built March 2023 to July 2023

Integrated Braking System

On affected vehicles an unexpected loss of hydraulic brake assistance may occur and may result in a different pedal behaviour under specific conditions an extended braking distance may be experienced and ABS/Stability control may be impaired

Put right by: On the affected vehicles the Integrated Brake System will be replaced

DVSA R/2024/119207 vehicles affected in the UK
🏛️ October 2023Cars built July 2023 to August 2023

Checking potential vehicle damage

On affected vehicles risk of potential flooding could have occurred leading to salt water ingress whilst parked in port awaiting shipping

Put right by: The affected vehicles will be thoroughly checked cleaned and reworked as required

DVSA R/2024/15612 vehicles affected in the UK
🏛️ August 2023Cars built August 2007 to June 2014

The driver and front passenger airbags may deploy with too much explosive force causing sharp metal fragments to be released into the cabin.

The driver and front passenger airbags may deploy with too much explosive force causing sharp metal fragments to be released into the cabin.

Put right by: Replace the driver and front passenger airbags.

DVSA R/2023/22444,407 vehicles affected in the UK
🏛️ January 2023Cars built March 2014 to September 2017

A possible degradation of the propellant tablets could lead to an over-aggressive combustion in the event the airbag is activated which may cause the inflator body to rupture.

A possible degradation of airbag propellant tablets could lead to an over-aggressive combustion in the event the airbag is activated which may cause the inflator body to rupture.

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

DVSA R/2023/0164,432 vehicles affected in the UK
🏛️ August 2022Cars built August 2019 to July 2020

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/2022/255322,745 vehicles affected in the UK
🏛️ August 2022Cars built March 2014 to April 2019

The exhaust gas recirculation cooler may leak over time and cause thermal incident

The Exhaust Gas Recirculation cooler may leak over time and cause thermal incident.

Put right by: On the affected vehicles the EGR cooler module will be replaced.

DVSA R/2022/206319,399 vehicles affected in the UK
🏛️ June 2021Cars built April 2017 to August 2018

The exhaust gas recirculation module could leak over time

The Exhaust Gas Recirculation (EGR) Module could leak over timeand cause thermal incident.

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

DVSA R/2021/21318,330 vehicles affected in the UK
🏛️ February 2021Cars built February 2020 to October 2020

The integrated brake system hydraulic unit may have been produced incorrectly

The Integrated Brake system hydraulic unit may have been produced incorrectly

Put right by: Replace the Integrated Brake system hydraulic unit.

DVSA R/2021/054139 vehicles affected in the UK
🏛️ January 2021Cars built July 2020 to November 2020

The battery cables on the 48v starter generator may not have been sufficiently secured during production

The battery cables on the 48V starter generator may not have been sufficiently secured during the production process.

Put right by: Check the screw connection of the 48V positive / negative battery cables on the starter generator and rework if necessary.

DVSA R/2021/015388 vehicles affected in the UK
🏛️ November 2020Cars built June 2020 to June 2020

The front axle support (subframe) welding process has not been completed according to specifications

The front axle support (subframe) welding process has not been completed according to specifications.

Put right by: Replace the front axle support.

DVSA R/2021/07210 vehicles affected in the UK
🏛️ March 2020Cars built December 2019 to January 2020

The rear spoiler attached to the top edge of the tailgate adjoining the rear of the roo can be inadequately bonded on the right hand side

The rear spoiler attached to the top edge of the tailgate adjoining the rear of the roof can be inadequately bonded on the Right Hand side

Put right by: Check for correct adhesion and replace if faulty

DVSA R/2020/067167 vehicles affected in the UK
🏛️ March 2020Cars built March 2014 to April 2019

The isofix child restraint u-loop may break off the carrier plate

The ISOFIX child restraint U-Loop may break off the carrier plate resulting in the child seat no longer being secure.

Put right by: Weld an additional metal angle bracket to each ISOFIX U-Loop

DVSA R/2019/3978,155 vehicles affected in the UK
🏛️ July 2019Cars built December 2006 to August 2011

Movements of the connector of the blower regulator wiring harness could lead to frictional corrosion

The blower regulator wiring could be damaged increasing the risk of fire.

Put right by: The connection of the blower-regulator will be checked and reworked and if necessary the blower regulator will be replaced.

DVSA R/2019/19231,601 vehicles affected in the UK
🏛️ March 2019Cars built October 2008 to October 2011

Auxiliary water pump's electronic circuit board could lead to a short circuit

The auxiliary water pump may short circuit causing a thermal incident.

Put right by: The Auxiliary Water Pump of the affected vehicles will be replaced.

DVSA R/2019/0575,866 vehicles affected in the UK
🏛️ February 2019Cars built August 2007 to March 2010

The idler pulley bolt could become loosened over time

The power steering idler pulley may detach.

Put right by: Replace the pulley securing bolt with an alternative component.

DVSA R/2019/01821,123 vehicles affected in the UK
🏛️ December 2018Cars built March 2014 to May 2017

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/2018/341225,449 vehicles affected in the UK
🏛️ October 2018Cars built July 2018 to August 2018

Due to a fault at the vehicles assembly line some wheel bolts may not have been tightened to specification

Due to a fault at the vehicles assembly line some wheel bolts may not have been tightened to specification.

Put right by: On the affected vehicles the wheel bolts will be replaced.

DVSA R/2018/26219 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
🏛️ 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
🏛️ December 2012Cars built June 2006 to November 2012

Drive may fail

The power steering pump drive belt tensioner pulley securing bolt may fail which will lead to the loss of power steering assistance and the necessity for the driver to supply additional input to steering the vehicle.

Put right by: Recall the vehicles that are likely to be affected to replace the steering pump drive belt tensioner pulley securing bolt with a more robust version.

DVSA R/2012/15022,737 vehicles affected in the UK
🏛️ July 2012

Potential fire risk

The power steering box housing may not be machined to the correct specification. This could cause an over pressurisation of bellows due to the insecurity of a snap ring and result in a sudden loss of hydraulic pressure. Oil will then be sprayed onto hot engine components and may ignite.

Put right by: Affected vehicles will be recalled to have the steering box replaced.

DVSA R/2012/0785 vehicles affected in the UK
🏛️ April 2012

Fire may occur

Some engines are fitted with an additional water pump for the turbo charger. In some circumstances a crack may develop which then leads to melting of the plug connections and the housing. Further heat development may then lead to scorch damage. In exceptional cases such overheating can lead to smouldering of the water pump. If smouldering occurs an engine compartment fire and vehicle fire cannot be excluded.

Put right by: The water pump will be replaced for a new more robust version.

DVSA R/2012/04921 vehicles affected in the UK
🏛️ November 2011Cars built November 2007 to February 2011

Short circuit may occur

Due to the ingress of moisture it is possible that a short circuit can occur in the additional coolant pump for the exhaust turbocharger. The driver will be informed of the issue by a warning message on the display in the instrument panel. If not addressed it is possible for further heat build up in the pump which may cause the plug connection and housing to melt and in extreme cases a localised fire in the engine compartment or vehicle.

Put right by: Recall all affected vehicles for the replacement of the additional coolant pump.

DVSA R/2011/147557 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 X6 service intervals

Skipped servicing is the cheapest thing for a seller to hide on a used X6. These are the figures UK specialists work to.

Transfer case (ATC) oil
50,000 miles

BMW treats the xDrive ATC transfer case as sealed-for-life, but specialists recommend changing the DTF-1 (75W GL-4) fluid every 50,000-60,000 miles; 50,000 recorded here as the shorter end of the published range. Neglected fluid accelerates wear of the multi-plate clutch pack that apportions drive between axles, a four-figure repair. Ask for evidence of transfer case servicing on any higher-mileage xDrive car.

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 X6 buying questions

What are the most common BMW X6 problems?

Three stand out. Engine: the Exhaust Gas Recirculation (EGR) cooler can leak glycol, leaving soot deposits that smoulder (typically 30000 to 80000 miles). Engine: screws for the housing of the variable camshaft timing (VANOS) adjustment unit can loosen or break. Engine: the circuit board for the electric auxiliary water pump can overheat. The full list above is grouped by generation, with typical mileage and a rough repair cost for each.

Which BMW X6 years should I avoid?

No BMW X6 year is a write-off, but the E71 (2011 to 2012) carries the most serious faults: engine. 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 X6?

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 management light illuminated, engine emergency mode activated and engine compartment smell of burning. Read the MOT history for repeat advisories, then paste the advert into the free check, which reads it against all 4 known faults before you travel. Check a BMW X6 advert →

Are there any recalls on the BMW X6?

The DVSA lists 28 safety recalls for the BMW X6 issued between 2011 and 2025. The most recent, from December 2025, is "Takata Driver and/or Passenger Airbag Recall (Global VINs)". 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 X6?

Owners report 29.0 mpg on average across the BMW X6 engines with data, about 90% 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 186 owner submissions. BMW X6 Real MPG by engine →

Looking at a BMW X6 right now? Check the advert before you go and see it.

Where this BMW X6 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 X6 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 X6 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.

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