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

See also:
Malfunction
The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire can be detected.
Display in the following situations:
▷ A wheel with ...
Operating from the outside
▷ Via the remote control.
▷ Via the door lock.
▷ In cars with Comfort Access, via the door
handles.
The following takes place simultaneously when
locking/unlocking the vehicle ...
Unlocking and opening
▷ Either unlock the doors together using the
button for the central locking system and
then pull the door handle above the armrest
or
▷ Pull the door opener twice individually on
...
