SuspensionHigh
Air suspension compressor and airbag leaks causing sagging rear ride height
- Typically appears
- 60,000+ miles
- What to inspect
- Check ride height is level after standing overnight and listen for compressor running
2018 BMW X6 problems
A 2018 BMW X6 is now 8 years old, so an average example has covered around 108,000 miles. A late-run car · the most reliable part of the generation, but higher-mileage wear items are usually the deciding factor. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2018 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
Quick answer
The 2018 BMW X6 is 8 years old, so an average example has covered roughly 108,000 miles. At that mileage 4 of the documented faults are already due, so check those first.
Faults a 2018 example has usually reached
Documented onset mileage is at or below the ~108k miles an average 2018 car has covered.
EngineHigh
Timing chain guide wear on N55 and early N63 petrol engines
- Typically appears
- 70,000+ miles
- What to inspect
- Cold start and listen for a rattle from the timing chain area
CoolingMedium
Water pump and thermostat housing failures
- Typically appears
- 60,000+ miles
- What to inspect
- Check coolant level and look for warning lights or overheating history
BrakesMedium
Front brake disc and pad wear accelerated by weight
- Typically appears
- 40,000+ miles
- What to inspect
- Check disc thickness and pad wear through the wheels
Faults that appear at any mileage
Age, electronics and build-related issues that are not mileage-driven.
ElectricalMedium
iDrive infotainment glitches and camera module faults
- Typically appears
- Age-related
- What to inspect
- Test every camera, sensor and infotainment function thoroughly
Inspecting a 2018 BMW X6?
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carBMW X6 · frequently asked questions
Is the X6 expensive to maintain?
Yes, its weight and complexity mean suspension, brakes and engine work all cost more than average.
Which engine should I look for?
The 3.0 diesel is generally the most cost-effective and dependable choice.
Is air suspension failure common?
It is a known weak point, so checking ride height and compressor noise is essential.
Are electronic faults a concern?
iDrive and camera glitches occur, so testing every feature on a test drive is worthwhile.