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

See also:
Display on the Control Display
Switching on the backup camera via the
iDrive
With PDC activated:
"Rear view camera"
The backup camera image is displayed. The setting
is stored for the remote control currently in
...
Safety
The 750Li is outfitted with a full array of airbags, including
front-seat-mounted side-impact airbags, side curtain airbags for both rows, and
knee airbags. The previous-generation 7 Series offere ...
Function
After the safety belt is buckled and the door is
closed, the front belts are automatically tightened
once after the vehicle is driven is away.
In critical driving situations, the following indivi ...
