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

See also:
Manual Transmissions: Continuing a BMW tradition
BMW continues as the only manufacturer to offer manual transmissions in the
BMW 5-Series' competitive set, underlining the sporty nature of the car, as well
as BMW's commitment to driving enthusia ...
Switching off automatically
The system switches off and the LED goes out:
▷ After approx. 160 ft/50 m when driving forward.
▷ Above approx. 22 mph/36 km/h when driving
forward.
Switch on the system again if nece ...
Warning triangle
The warning triangle is located in the container
on the inside of the trunk lid.
Unscrew the wing nut to open. ...
