BMW X4 F26 common faults.

2014–2018. The fault list covers this generation and the engines in it. If the listing gives the exact version, pick it below.

What to watch for

What can go wrong on this car?

The list covers the generation, the engines and the transmissions. Once you pick the version, only the faults that apply to it stay.

Diesel high pressure pump: power loss and engine shutdown while driving

critical

The high pressure pump of these common rail diesels (Bosch CP4) can fail while driving.

Applies to the engine N57D30, B47D20.

Electric water pump: silent failure, immediate overheating

critical

In these engines the water pump is not belt driven but has its own electric motor.

Applies to the engine N55B30.

N20 2.0 petrol: breaking timing chain guide

critical

The chain guide of the early N20 engines is brittle: if it breaks, the chain goes slack, and from then on the timing is imprecise.

Applies to the engine N20B20.

N47 / N57 diesel: timing chain on the rear of the engine

critical

In these diesels BMW put the timing chain at the back of the engine, on the gearbox side.

Applies to the engine N57D30.

Diesel EGR cooler: cracking, coolant in the intake, fire risk

critical

The internal fins of the exhaust gas recirculation cooler crack over time, and glycol coolant leaks into the intake, where it mixes with soot.

Applies to the engine N57D30, B47D20.

B47 diesel: the timing chain stretches on the early model years

critical

On the early model years the timing chain of the B47 stretches faster than intended.

Applies to the engine B47D20.

Repair: 1,200–4,500 EUR

N52 / N55: aluminium bolts of the VANOS housing can loosen

critical

Four aluminium bolts hold the housing of the variable valve timing (VANOS).

Applies to the engine N55B30.

B47 / B57 diesel: particulate filter and turbo on short trips

critical

The B47 replaced the N47, and the maker fixed the timing chain problem.

Applies to the engine B47D20.

10 more faults belong to this generation. On the version page, only the ones that apply stay.

Official recall10 recallsShow

The manufacturer fixes these for free at a franchised dealer. Ask with the VIN whether it was done. The list covers the whole generation. We did not filter it by model year. Some apply only to a narrower production window.

Most recent: 30 March 2023

A12/00868/23Safety recallInjuries30 March 2023 · EU Safety Gate

The airbag may deteriorate over time, and if deployed, excessive internal pressure may cause the inflator body to burst and metal fragments could pass through the cushion material causing injury to occupants. The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: 30/03/2023

The authority's notice

16V333000CHILD SEAT:LATCH STRAPCHILD SEAT:LATCH STRAP23 May 2016 · NHTSA (USA)

BMW of North America, LLC (BMW) is recalling certain model year 2011-2017, X3 sDrive28i, X3 xDrive28i and X3 xDrive35i, vehicles manufactured July 2, 2010 to April 14, 2016, 2015-2017 X3 xDrive28d vehicles manufactured March 10, 2014 to March 31, 2016, and 2015-2017 x4 xDrive28i, X4 xDrive35i and X4 xDriveM40i vehicles manufactured March3, 2014 to April 15, 2016. The affected vehicles have lower anchor bars for securing child restraint seats that may become damaged when using the European-ISOFIX-type, rigid-style connector, child restraint system.

Risk: Damaged lower anchor bars may increase the child's risk of injury in the event of a crash.

Remedy: BMW will notify owners, and dealers will weld a reinforcing bracket to the lower anchor bars and the vehicle body, free of charge. The recall began on July 13, 2016. Owners may contact BMW customer service at 1-800-525-7417.

The authority's notice

14V648000VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIORVISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR16 October 2014 · NHTSA (USA)

BMW of North America, LLC (BMW) is recalling certain model year 2015 X3 and X4 Sports Activity Vehicles manufactured July 28, 2014 to July 29, 2014. The affected vehicles may have been produced with a driver's side exterior rearview mirror that was designed to meet non-US market requirements. Thus, these vehicles fail to comply with the Federal Motor Vehicle Safety Standards No. 111, "Rearview Mirrors."

Risk: The driver may not notice that vehicles viewed in the mirror are closer than they appear, increasing the risk of a crash.

Remedy: BMW will notify owners, and dealers will replace the driver's side exterior rearview mirror, free of charge. The recall began on December 16, 2014. Owners may contact BMW customer service at 1-800-525-7417 or CustomerRelations@bmwusa.com.

The authority's notice

A12/00608/20Safety recallInjuriesno date · EU Safety Gate

The screw connection from the passenger's airbag to the instrument panel may not have been manufactured according to specifications. As a result, if the airbag is activated, the panel cover may break into pieces, which will be propelled against the passenger increasing the risk of injury.