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

See also:
Comfort function
▷ Press the switch twice with
the sunroof open:
The sunroof is raised.
▷ When the sunroof is raised,
briefly press the switch twice
in the opening direction:
The sunroof is opene ...
Transmission positions
D Drive, automatic position
Position for normal vehicle operation. All forward
gears are available.
R is Reverse
Select only when the vehicle is stationary.
N is Neutral
Use in automatic car wa ...
Audio playback
Selecting the track using the button
Press the button repeatedly
until the
desired track is played.
Selecting the track using the iDrive
Audio CDs
Select the desired track to begin playback. ...
