See also:

Display on the Control Display
Switching on the backup camera via iDrive With PDC activated: "Rear view camera" The backup camera image is displayed. The setting is stored for the remote control currently in use ...

Switching on/off manually
Press the button. ...

Enabling operation in the rear
Only possible via the iDrive in the front. 1. "Settings" 2. "Allow rear control" 3. Select the desired priority. ...