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

See also:
Safety switch
The safety switch in the driver's door can be
used to prevent children, for example, from
opening and closing the rear windows using the
switches in the rear.
Switching on and off
Press the butt ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
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: press the button. ...
