Problems with the cooling with air dehumidification function
When you press the 
button, the
indicator lamp in the button flashes three
times or remains off. You can no longer switch
on the cooling with air dehumidification
function.
•► Consult a qualified specialist workshop.
See also:
Gasoline
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 immedia ...
Engine emergency off
If the engine cannot be switched off as
described, observe the following procedure:
► Take the fuse allocation chart out of the
vehicle tool kit.
► Search for fuse 120 in the fuse al ...
Mercedes-Benz M-Class
With the 2012 M-Class, Mercedes brings the comfortable, luxurious driving
experience of its flagship S-Class sedan to its most popular SUV.
If you don't like to be disturbed by the world around yo ...