Air Suspension Bellows & Compressor
SeriousSuspension & ChassisThe air springs can develop hairline cracks, causing slow leaks. If ignored, the compressor burns out trying to compensate.
Est. Repair Cost: £600–£1,500
Warning Signs:
Car sagging on one corner after being parked, Unusually loud compressor noise, Chassis restricted warning on the iDrive
What to Inspect:
- Measure the gap between tyre and arch on all four corners after the car has sat
- Cycle the ride height through all levels and check for speed and smooth transition
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