See also:

Refueling
Always switch off the engine before refueling; otherwise, fuel cannot be added to the tank and a message will be displayed. Take all precautionary measures and observe all applicable regulation ...

Current office
The number of unread messages and active tasks as well as upcoming appointments are displayed. 1.  "Office" 2.  "Current office" 3.  Selecting the desired entry ...

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 ...