See also:

Restoring the factory settings
Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

Fast forward/rewind
Slide and hold the COMAND controller until the desired position has been reached. You see the navigation menu. ...

Changing the picture format
Select Source in the AUX menu and press the button on the remote control to confirm. Select Display Aux or Disk Drive Aux and press the button to confirm. Select Auto16:9 optimized, 4:3 o ...