Parking Brake System: Testing and Inspection

Testing EPB (Electromechanical Parking Brake) on Brake Test Stand

Test sequence:

- Drive in vehicle with rear wheels on test rollers and do not switch ignition off.

- As soon as the rollers reach a speed above 3 km/h. the "TÜV Mode" is activated.

- A cancelled-out yellow electromechanical parking brake system ⇒ page appears in the instrument cluster => Owner's manual; Instruments and indicator lights

The EPB functions as follows:

The brakes do not close at once, but rather close a bit each time the button is pressed (parking brake pressure switch). The brake is completely closed in 3 stages.

One press on the button releases the brakes again.

Prerequisite for "TÜV mode":

- Ignition on

- Front wheels, speed greater = 0 km/h

- Rear wheels, speed minimum = 3, maximum 9 km/h.


On vehicles with all wheel drive, a brake test stand with regulated wheel set must be used.