The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.
See also:
Priority options
The driver has priority
The source selected via iDrive in the front is
output on the vehicle loudspeakers and can
be selected but not operated from the rear.
Other audio or video sources ...
Configuring the prewarning
After the warning function is switched on, the
following can be set via the iDrive:
The prewarning can be switched on/off.
The time of the prewarning can be set.
These settings have no effe ...
Switching the interior lamps on and off
Press the button.
To switch off permanently: press the button for
approx. 3 seconds.
Switch back on: press button. ...