IsItAGoodCar
Reliability Guide

Common Problems with the
2015 BMW X1 (E84)

We've identified 3 known issues that can affect the 2015 BMW X1 (E84). 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
2
Moderate
0
Minor

All Known Issues

xDrive Transfer Case Judder

SeriousGearbox & Transmission

The transfer case wears quickly when owners run mismatched tyres or ignore fluid changes, leading to shunting and 4x4 warnings. It is one of the first things to check on any xDrive E84.

Est. Repair Cost: £800–£2,000

FRM (Footwell Module) Failure

ModerateElectrics & Electronics

Low voltage, jump starts, or flat batteries can corrupt the footwell module, causing lighting and window faults that often look worse than they are.

Est. Repair Cost: £200–£400

Water Ingress (Boot)

ModerateBodywork & Rust

Water can enter past rear light seals and tailgate seals, flooding the battery well and creating odd electrical faults or a persistent musty smell.

Est. Repair Cost: £50–£250

Buying Tips for 2015 BMW X1 (E84)

  • ✓Listen carefully to the N47 diesel engine for a rhythmic 'chck-chck-chck' sound from the rear, indicating a stretched timing chain that requires engine removal to fix.
  • ✓If buying an xDrive model, ensure all four tyres match in brand, tread depth, and type; mismatched tyres destroy the delicate transfer case.
  • ✓Check the footwells for dampness, a common issue caused by blocked sunroof drains or failing vapour barriers inside the doors.
  • ✓Verify the manual gearbox shifts smoothly into reverse and first gear, as clutch judder is a frequent complaint on early diesel models.
  • ✓Test the electric power steering (if fitted) for heavy spots or knocking, as the racks can wear out prematurely.
  • ✓Ensure the rear wiper motor works, as the spindle frequently seizes due to rust and requires the entire motor assembly to be replaced.
2013–2014
Check a 2015 BMW X1 (E84) by Registration