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

See also:
What to do if...
► The current transmission position cannot be
displayed?
The vehicle is located in an unrecognized
region, is in a poor reception area, or the
system is currently determining the position.
...
Pairing/unpairing the mobile
phone
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.
...
Ignition lock
Insert the remote control into the ignition lock
Insert the remote control all the way into the ignition lock.
> Radio readiness is switched on.
Individual electrical consumers can operate.
C ...
