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:
Qualified specialist workshop
An authorized Mercedes-Benz Center is a
qualified specialist workshop. It has the
necessary specialist knowledge, tools and
qualifications to correctly carry out the work
required on your vehicle. ...
Important safety notes
WARNING
For safety reasons, switch off the windshield wipers and remove the key from
the ignition lock before changing the wiper blades (vehicles with KEYLESS-GO: make
sure that the on-board ...
Cleaning the trailer tow hitch
The ball coupling must be cleaned if it becomes dirty or corroded.
Remove rust on the ball of the ball coupling, e.g. with a wire brush.
Remove dirt with a clean, lint-free cloth or a brush.
A ...