Parking brake

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: The test may only be carried out with the engine switched off, the transmission selector lever in the "N" position and the ignition switched on.

NOTE: The electromechanical parking brake can not be tested on a plate test stand!

Fig 1: Identifying Dynamic Brake Analyzer

Courtesy of BMW OF NORTH AMERICA, INC.

Drive vehicle with rear axle into roller dynamometer
Move transmission selector lever to "N" position
Turn off engine.
NOTE: When the engine is running, additional braking action will otherwise be exerted by the DSC system on all the wheels.
Turn on ignition.
Start roller dynamometer.
Activate parking brake, pull button (1) for this purpose.
NOTE: Parking brake indicator lamp in instrument cluster lights up red. Duo-servo brake (actuating unit) is applied. Roller dynamometer shuts down after locking of wheels (slip) or vehicle is pushed out of roller dynamometer
Deactivate parking brake:

Fig 2: Identifying Parking Brake Activation Button
Courtesy of BMW OF NORTH AMERICA, INC.
- Press button (1) and simultaneously press service brake pedal
  NOTE: Duo-servo brake (actuating unit) is released.
Read off maximum brake power on left / right

Fig 3: Identifying Dynamic Brake Analyzer

Courtesy of BMW OF NORTH AMERICA, INC.