Function restrictions
Depending on the DVD, it is possible that certain functions or actions will be temporarily blocked or may not function at all.
As soon as you try to activate these functions
or actions, you will see the 
symbol
in the
display.
See also:
Important safety notes
You will find an illustration of the instrument
cluster in the "At a glance" section.
WARNING
A driver's attention to the road and traffic
conditions must always be his/her primary
...
Snow chains
For safety reasons, Mercedes-Benz
recommends that you only use snow chains
which have been specially approved for your
vehicle by Mercedes-Benz, or are of a
corresponding standard of quality.
...
Adjusting the volume
Adjusting the volume for the audio or
video source
Adjusting the volume for the audio or video source
To adjust: turn thumbwheel 1.
or
Press the or
button on the
multifunction steer ...