See also:

Message memory
The on-board computer saves certain display messages. You can call up the display messages in the message memory. – Press the or button on the steering wheel to select the Serv. menu. If th ...

Showing/hiding the menu
This function is not available while the DVD's own menu is being displayed. To show: press the COMAND controller. or Select Menu while the navigation menu is shown and press to confirm. ...

Problems with the engine
Problem Possible causes/consequences and - Solutions The engine does not start. The starter motor can be heard.  - There is a malfunction in the engine electronics. ...