IsItAGoodCar
Reliability Guide

Common Problems with the
2014 BMW X4 (F26)

The F26 X4 went on sale in the UK in 2014 as a coupe-roofed X3, with xDrive only and a choice of 20i/28i/35i petrols and 20d/30d/35d diesels.

What changed for 2014

  • •xDrive20i, 28i and 35i petrols; xDrive20d, 30d and 35d diesels at launch.
  • •Eight-speed ZF automatic and xDrive standard across the range.
  • •40:20:40 split rear seats, iDrive and M Sport trim; no rear-drive option.

Common MOT watch-outs

  • !Diesel smoke-test failures from clogged DPFs on urban 20d and 30d cars.
  • !Inner-edge rear tyre wear from the coupe roofline's camber and wide wheels.
  • !Corroded rear brake pipes and worn front thrust-arm bushes.
3
Known Issues
2
Serious
1
Moderate
0
Minor

All Known Issues

Transfer Case Judder

SeriousGearbox & Transmission

The ATC35L xDrive transfer case clutch pack is highly sensitive to rolling circumference differences between front and rear axles. Running non-star-marked or mismatched tyres causes shuddering and driveline snatch.

Est. Repair Cost: £1,000–£2,500
Warning Signs:

Hesitation or shudder under moderate acceleration between 20–40 mph, Stuttering or crabbing when turning tightly into parking bays, 4x4 and Drivetrain malfunction warnings

What to Inspect:
  • Check that all four tyres are identical brand and model with BMW star (*) marking
  • Measure tread depth differences across all four tyres (must be within 2mm)
  • Perform low-speed full-lock turns in both directions
Verified by IsItAGoodCar Research TeamUpdated

N47/B47 Timing Chain & EGR

SeriousEngine

Early 2014 models with N47 diesels carry rear timing chain stretch risks, while all diesel variants are affected by the critical BMW EGR cooler recall to prevent coolant leakage and intake fires.

Est. Repair Cost: £0–£2,500
Warning Signs:

Rattling metallic scraping sound from rear of engine on cold idle, Unexplained drop in coolant expansion tank level, Sweet burning smell through cabin air vents

What to Inspect:
  • Listen closely to rear engine bulkhead on cold start for chain slap
  • Verify BMW main dealer recall records for EGR cooler and intake replacement
Verified by IsItAGoodCar Research TeamUpdated
Official Recalls & Reference Documents:

Steering Rack Knock

ModerateSteering

The EPS steering rack develops internal mechanical play in the thrust piece bush, leading to a loose knocking sound transmitted directly through the steering column when driving over broken pavement.

Est. Repair Cost: £200–£1,200
Warning Signs:

Dull knocking felt in hands when negotiating low-speed potholes, Rattle when rocking steering wheel back and forth with engine off, Vague on-centre steering response

What to Inspect:
  • Rock steering wheel sharply left and right with engine idling to check for clunks
  • Ask if the official BMW steering rack thrust piece repair kit (part 32106891974) has been fitted
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2014 BMW X4 (F26)

  • Check all four tyres for matching star-marked fitment to protect the transfer case.
  • On early 20d cars, listen for N47 timing-chain rattle from the rear of the engine.
  • Rock the steering wheel to check for rack knock before a test drive.
2015
Check a 2014 BMW X4 (F26) by Registration