One problem related to differential unit has been reported for the 2000 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Audi A4 based on all problems reported for the 2000 A4.
Persistent failure of the center differential transmission component. There were no events leading up to the failure, other than normal operation of the vehicle. The part was replaced at 70,000 miles by sewickley Audi and partially covered by warranty (75%). The center differential was replaced again and again at 100,000 miles (along with the whole transmission) - not covered by warranty. Audi service (at paul miller Audi) replaced the entire transmission for a very costly repair ($8,800) and stated that a failure of the center bearing in the transmission occured prior to the failure of the first center differential.
| Driveshaft problems | |
| Differential Unit problems | |
| Automatic Transmission Park/neutral Start Switch problems | |
| Power Train problems | |
| Axle Shaft problems |