General information (Audi A6 C5)

The gearbox is designed to transform the torque transmitted from the engine crankshaft in magnitude and direction. As a result, optimal speed and cross-country ability of the car are ensured, as well as economical engine operation and reverse movement of the car. Also, the gearbox disconnects the engine and transmission when the car is stopped and parked and when it is moving by inertia with the engine running.

The gearbox components are housed in a crankcase which is bolted to the rear of the engine.

The torque from the engine crankshaft is transmitted to the input shaft of the gearbox via the clutch. The output shaft of the gearbox transmits torque via the differential to the drive shafts. The gear is engaged by moving the sliding clutch of the synchronizer, as a result of which the gear is rigidly connected to the shaft of the gearbox.

Gearbox (automatic or normal) can be removed without removing the engine. Removing the gearbox is required when the clutch needs to be replaced or the gearbox needs to be replaced or repaired. The gearbox is a precise and complex unit and its repair must be carried out at a service station, so the manual provides procedures for removing and installing the gearbox.