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

See also:
The concept
iDrive integrates the functions of a large number of switches. This allows these
functions to be operated from a single central position.
Make entries only when traffic and road conditions per ...
General information
Front
Two different driver's seat, exterior mirror, and
steering wheel positions can be stored and retrieved
for each remote control. The adjustment
of the lumbar support is not stored.
Rear ...
Visual warning
The approach of the vehicle to an object can be
shown on the Control Display.
When the distance to an object is small, a red bar
is shown in front of the vehicle, as it is in the PDC
display.
...
