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. ...

Welcome lamps
When parking the vehicle, leave the switch in position or : the parking and interior lamps light up briefly when the vehicle is unlocked. Activating/deactivating 1. "Settings" 2. &q ...

Deactivating HDC
Press the button again; the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...