Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics






Brakes, Checking on the Brake Test Stand

Brake test must be performed on a regulated brake test stand.

Regulated means: The speed of the test stand rollers must be regulated in such a way as to avoid any speed difference during the brake test.

This prevents the brake forces from being transmitted into the powertrain.

The test speed must not exceed 6 Km/h, otherwise, the brakes may lock up due to the roller start-up delay (EDL regulation).

Test stands approved by Audi meet these requirements.

If test speed is after than 6 km/h, torsen differential can be damaged.