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

See also:
Removing the remote control from the ignition lock
Do not forcibly pull the remote control out
of the ignition lock
Do not forcibly pull the remote control out of the
ignition lock as this may cause damage.◀
Before removing the remote c ...
Navigation
This chapter contains various examples of how
the navigation system can guide you reliably to
your destination. ...
Tire inflation pressures X5 xDrive50i with three rows of seats
...
