Air Suspension Strut and Compressor Failure
SeriousSuspension & ChassisThe full air suspension on all four corners inevitably develops leaks as the rubber air bellows age, eventually killing the WABCO compressor.
Est. Repair Cost: £800–£3,500
Reliability GuideCommon Problems with the
Common Problems with the
2002 Audi A8 Mk3 (D3)
We've identified 3 known issues that can affect the 2002 Audi A8 Mk3 (D3). 2 of these are serious faults that could be expensive to repair.
3
Known Issues
2
Serious
1
Moderate
0
Minor
All Known Issues
Multitronic CVT Gearbox Issues
SeriousGearbox & TransmissionThe Multitronic CVT gearbox can judder, flare, or lose drive if fluid changes were skipped or the gearbox ECU starts to fail.
Est. Repair Cost: £1,000–£2,500
Electrical Module Failures
ModerateElectrics & ElectronicsAgeing electronics cause multiple module failures, including keyless entry antennas, comfort modules, and CAN bus communication faults.
Est. Repair Cost: £200–£1,200
Buying Tips for 2002 Audi A8 Mk3 (D3)
- ✓Inspect the air suspension thoroughly; leaking front struts or a burnt-out compressor are very common and expensive to rectify.
- ✓Check the MMI screen gears; they become brittle and break, preventing the screen from rising out of the dashboard.
- ✓Look for evidence of water ingress in the front footwells, usually caused by blocked scuttle panel drains, which can destroy the costly Bluetooth and KESSY modules under the carpets.
- ✓Ensure the electronic parking brake engages and disengages without screaming or throwing faults, as the rear caliper motors frequently seize.
- ✓Test all luxury electrical features, including the soft-close doors and fingerprint scanner (if fitted), as modules regularly fail due to age and poor battery health.
- ✓On the 4.2 V8 petrol, listen for rattling timing chains (on FSI models) or check the cambelt history (on older port-injected models), as both are huge jobs.