One problem related to engine has been reported for the 1999 Audi Quattro. The most recently reported issues are listed below.
Potentially dangerous with fuel sending unit. Experienced 7 recalls since the purchased of 1999 Audi Quattro. The consumer stated periodically the vehicle would start, the vehicle was taken to the dealer on three occasions and it was finally determined that the problem was due to carbon build up on certain engine parts. The fuel sending unit was finally recalled.
| Emission Control problems | |
| Engine problems |