Operation CHARM: Car repair manuals for everyone.

All-Wheel Drive Vehicles



All-wheel drive vehicles

Test on a single-axle brake dynamometer for all-wheel drive vehicles
The rollers drive the wheels of one axle in opposite directions to avoid transmitting torque to the other axle.

Test speed must not exceed 6 km/h, otherwise the EDL control can activate the brakes if the rollers start at different speeds.

CAUTION: The Torsen differential will be seriously damaged if test speed exceeds 6 km/h.

All brake test equipment approved by Audi meets these requirements.

Test on a single-axle brake dynamometer
Test speed must not exceed 6 km/h, otherwise the EDL control can activate the brakes if the rollers start at different speeds.

All brake test equipment approved by Audi meets these requirements.