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

See also:
On the front passenger seat
Deactivating airbags
After installing a child restraint fixing system in
the front passenger seat, make sure that the
front, knee and side airbags on the front passenger
side are deactivated.
...
Interior
Even though it's relatively unchanged for 2009, the X3's interior remains
very upscale for this segment. My test car's dark brown leather upholstery and
black dashboard made for an especially clas ...
Radar sensor
Position
Radar sensor
Dirty or covered sensor
A dirty or covered sensor may hinder the detection
of vehicles.
▷ If necessary, clean the radar sensor. Remove
layers of snow and ice care ...
