Parking Brake System: Testing and Inspection

Electro-Mechanical 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 between 3 km/h and 9 km/h, "TUV mode" is activated.

- A cancelled-out yellow electro-mechanical parking brake system => page appears in the instrument cluster Owner's manual; Instruments and indicator lamp.

The electro-mechanical parking brake function is now:

The brakes do not close at once, but rather close a bit each time the button is pressed (parking brake switch). Tension sufficient for measuring will be reached after 3 steps.

One press on the button releases the brakes again.

Prerequisite for "TUV mode":

- Ignition on

- Front wheels, speed greater = 0 km/h

- Rear wheels, speed min. = 3, max. 9 km/h.

CAUTION!
A brake test stand with a regulated wheel set must be used on AWD vehicles.