See also:

Displaying navigation instructions
In the Navi menu, the multifunction display shows navigation instructions. For more information, see the separate operating instructions. Switch on COMAND (see the separate operating instruction ...

Calling up the menu of a main function
1 To call up the audio menu 2 Main function bar If one of the main functions navigation, audio, telephone or video is switched on, triangle 1 appears next to the entry. You can now select ...

High outside temperatures
If DEF heats up to over 122 °F (50 °C ) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. WARNING When o ...