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 ...

Releasing the parking brake manually
In the event of an electrical power loss or electrical malfunction, you can release the parking brake manually. Secure the vehicle against rolling Before releasing the parking brake manually, ...

Switching the interior lamps on and off
Switching the interior lamps on and off Press the button. To switch off permanently: press the button for approx. 3 seconds. To clear this setting: briefly press the button. ...