Selecting a main function
Initial situation
You would like to change from the telephone menu to the vehicle settings, for example.
Slide 
the COMAND controller
and
switch to the main function bar.
Select Vehicle in the main function bar by
turning 
the COMAND controller and
press 
to confirm.
The "Vehicle" menu appears.
1 "Vehicle" menu
2 Display/selection window
See also:
Downhill gradients
On long and steep gradients, you must reduce the load on the brakes by shifting
early to a lower gear. This allows you to take advantage of the engine braking effect
and helps avoid overheating ...
Problems with Night View Assist Plus
Problem
Possible causes/consequences and - Solutions
The picture quality of
Night View Assist Plus
has deteriorated.
The windshield wipers are smearing the windshield.
...
Fuel grade
You should only refuel with unleaded premium-grade gasoline as this avoids
damaging the catalytic converter.
If engine running problems are apparent, have the cause checked immediately and
rep ...