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

See also:
Comparison with ordinary remote
control
The functions can be controlled by pressing the
buttons of the remote control or Comfort Access.
Unlocking
Fully grasp a door handle, arrow 1. This corresponds
to pressing the button.
Lockin ...
Capacities
...
Multi-channel playback,
surround
Choose between stereo and multi-channel playback,
surround.
Setting multi-channel playback,
surround
1. "CD/Multimedia", "Radio" or "Settings"
2. "Tone"
...
