See also:

Weights
Never exceed either the approved axle loads or the gross vehicle weight. ...

General information
The engine oil consumption is dependent on the driving style and driving conditions. Therefore, check the engine oil level after every refueling using the electronic engine oil level check. ...

What to do if...
Only a black screen is visible. Switch on the system. There are no options available on the screen. Switch over between the display screens. Radio stations or TV channels are grayed out ...