The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.

See also:
Dynamic options: M Sport package, Adaptive M Sport suspension, sports
automatic transmission and BMW 3-Series xDrive
Enthusiasts will welcome the further features that are available to enhance
the dynamic driving qualities of the new BMW 3-Series and give them a
distinctive visual dimension as well. The M Sport ...
Switching off automatically
The system switches off and the LED goes out:
▷ After approx. 33 ft/10 m when driving forward.
▷ After approx. 9 mph/15 km/h when driving
forward.
Switch on the system again if necess ...
General information
The sound settings are stored for the remote
control currently in use. ...
