One problem related to rear suspension coil springs has been reported for the 2003 Audi A8. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Audi A8 based on all problems reported for the 2003 A8.
Rear drivers coil spring failed, broke in half causing suspension to fail and damage rim/tire. Serious condition if driving at highway speeds. No warning of the failure prior.