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

See also:
Sound output
Switching on/off
When the ignition is switched off: press ON/OFF
button on the radio.
Muting
When the ignition is switched on or the engine
is running: press the ON/OFF button on the
radio. ...
For 520i and 528i: Check oil
level
The concept
The oil level is monitored electronically during
driving and shown on the Control Display.
If the oil level reaches the minimum level, a
check control message is displayed.
Displayi ...
Automatic deactivation of the front passenger airbags
The occupation of the seat is detected by evaluating
the impression on the occupied seat surface
of the front passenger seat.
The front and side airbags on the front passenger
side are activate ...
