Operation CHARM: Car repair manuals for everyone.

Parking Brake System: Testing and Inspection

Checking Parking Brake Setting


Note: If deviations are identified during the following check, the parking brake must be adjusted: refer to Adjustment

E46/E39/E53/E52
Release handbrake lever; it must be possible to turn wheels easily.

Switch ignition on; indicator light must not be on when handbrake lever is released.

1st tooth: No braking effect, but indicator lamp can be lit.

2nd tooth: Braking effect must begin, indicator lamp must light up.

E38
Release handbrake lever; it must be possible to turn wheels easily.

Switch ignition off; indicator light must go off when handbrake lever is released.

1st tooth: No braking effect, but indicator lamp can be lit.

2nd tooth: Braking effect can begin, indicator lamp must light up.

3rd tooth: Braking effect must begin, indicator lamp must light up.