Audi A6 Quattro gear box light warning issue on Audi A6 Quattro

Some Audi A6 Quattro owners report experiencing issues when the gearbox warning light illuminates, indicating potential problems with the transmission system, which may be caused by low transmission fluid, faulty sensors, or serious mechanical issues. These owners have noted symptoms such as shaking, jerking, or grinding while driving, as well as delays, slippage, or shaking during gear changes. The "gearbox malfunction" message often appears when the Powertrain Control Module detects issues that could lead to significant damage if not addressed promptly. Additionally, some drivers have reported receiving a "Gearbox warning" message alongside engine starting issues, such as rough running or unusual noises, with temporary resolution upon restarting the engine. In specific cases, owners have experienced the car rolling backward instead of moving forward after releasing the brake, further indicating a potential gearbox issue. It is recommended that affected owners have their vehicles inspected by a qualified mechanic to diagnose and resolve these problems swiftly.