See also:

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. If Top View is displayed, switch on the backup camera via the iDrive. ...

Switching on automatically
Select transmission position R with the engine running. ...

xDrive
xDrive is the all-wheel-drive system of your vehicle. Concerted action by the xDrive and DSC further optimize traction and driving dynamics. The xDrive all-wheel-drive system variably distributes ...