SuspensionMedium
Front control arm bush knock over broken surfaces
- Typically appears
- 50,000+ miles
- What to inspect
- Drive a rough road and listen for a knock at low speed
2021 BMW X4 problems
A 2021 BMW X4 is now 5 years old, so an average example has covered around 67,500 miles. A mid-run car · most launch faults had been addressed by this point, and wear items are the main risk at this age. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2021 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
Quick answer
The 2021 BMW X4 is 5 years old, so an average example has covered roughly 67,500 miles. At that mileage 2 of the documented faults are already due, so check those first. A further 1 typically appear later in the car's life.
Faults a 2021 example has usually reached
Documented onset mileage is at or below the ~68k miles an average 2021 car has covered.
TyresMedium
Uneven wear from run flats and wide rear rubber
- Typically appears
- 20,000+ miles
- What to inspect
- Measure tread inner and outer on all four corners
Faults that appear at any mileage
Age, electronics and build-related issues that are not mileage-driven.
ElectricalMedium
iDrive and driver assistance camera calibration faults
- Typically appears
- Age-related
- What to inspect
- Test lane assist, cameras and parking sensors
Faults still ahead of this car
Typically appear later than this year's average mileage · worth budgeting for rather than inspecting.
EngineHigh
Timing chain and turbo actuator faults on diesels
- Typically appears
- 80,000+ miles
- What to inspect
- Cold start and check for boost hesitation on the road
Inspecting a 2021 BMW X4?
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carBMW X4 · frequently asked questions
Is the X4 a safe used buy?
Yes with service history and honest tyre wear.
What do buyers complain about most?
Ride harshness and premature tyre wear on large wheels.
Any expensive surprise?
Chain work on high mileage diesels.