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

See also:
Switching the interior lamps on and off
Switching the interior lamps on and off
Press the button.
To switch off permanently: press the button for
approx. 3 seconds.
To clear this setting: briefly press the button. ...
Children should always be in the rear
Accident research shows that the safest place
for children is in the back seat.
Transporting children in the rear
Only transport children younger than
13 years of age or shorter than 5 ft/1 ...
Controls
Almost all functions can be operated in the same
manner as they are in the front. Special features
of operating the system in the rear are described
here.
Audio/video playback
Audio
Audio can ...
