Display in the instrument cluster
The collision warning can be issued in the instrument cluster, in the Head-up Display, and acoustically.
Warning stages

Adapting your speed and driving style
The display does not relieve the driver of
the responsibility to adapt his or her driving
speed and style to the traffic conditions.◀
See also:
Switching on/off manually
Press the button.
On: the LED lights up.
Off: the LED goes out.
The PDC is shown on the Control Display.
Switch on the backup camera via the iDrive. ...
Safety information
The tire characteristics and tire inflation pressure
influence the following:
▷ The service life of the tires.
▷ Road safety.
▷ Driving comfort. ...
Lug bolt lock
The lug bolt lock is in the tool kit or in a storage
compartment close to the tool kit.
▷ Lug bolt, arrow 1.
▷ Adapter, arrow 2.
Removing
1. Attach the adapter to the wheel lug.
...
