Audi S4 owners have reported 97 power train related problems since 1996. Table 1 shows the 13 most common power train problems. The number one most common problem is related to the vehicle's power train (76 problems). The second most common problem is related to the vehicle's transmission failure (4 problems). For details of each of the problem category, use the links in the table.
At times vehicle suddenly loses power and displays “transmission malfunction:you may continue driving” but then fails to accelerate to or maintain highway speeds. Other times when vehicle is stopped in traffic the transmission delays engaging when pressing in the accelerator and thus Read details...
Transmission failure. Lurching from a stop and lurching during shift changes. Read details...
Transmission shifts harshly and makes noise during shifts. Was told the mechatronics need replacement. Sometimes when accelerating the car will jolt as if it it loses power momentarily. When merging into traffic in could be dangerous. Read details...
Mechatronic failure. Car was fully serviced and maintained by Audi however Audi will not pay for cost of replacement. Cost of replacement is $3,000 usd. Car displayed gearbox malfunction limited driving ability, parking brake failure then lost all drive and car was stuck in n. Read details...
I have a 2004 S4 which crunches when shifting into 2nd and 3rd gear. Audi replaced the synchros but the problem still persists. I have returned to the dealership numerous times but they keep telling me its normal. The crunches occurs everytime I drive it and also make it difficult to get into gear. Read details...