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

See also:
General information
The following functions are available:
▷ Use of a mobile phone as a telephone.
▷ Use of a mobile phone as an additional telephone.
▷ Use of a mobile phone as an audio source.
...
Timeshift
Approx. one hour of the program being broadcast on the channel currently being
listened to is stored in a buffer. Prerequisite: the signal must be available.
The stored audio track can be played wi ...
Headlamps
▷ Do not rub dry and do not use abrasive or
caustic cleansers.
▷ Soak areas that have been soiled e.g. due to
insects, with shampoo and wash off with
water.
▷ Thaw ice with d ...
