Transmission Services Audi A4 , repairs is a specialty at German Car Depot. Here is an overview of some of the common Audi transmission troubles, and how to possibly prevent them from occurring. Symptoms of a Faulty Transmission: If you notice that the engine is lagging or unresponsive, a faulty transmission could be to blame. in most cases the Check Engine light will be on. Other signs and symptoms include burning smells, an inability to change gears, unusual sounds and/or vibrations and leaking fluids. When the CVT transmission TCM is not working the LCD display will have P R N D all lit up. Maintaining a Transmission to Prevent Problems: German Car Depot recommends observing the Audi manufacturer recommended maintenance schedule. The following transmission-related procedures will be performed: Fluid leak checks Transmission filter element replacements ATF or CVT oil changes Road test drives Alo ... read more