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:
Belt height adjustment
You can adjust the seat belt height on the
driver's seat and the front-passenger seat.
Adjust the height so that the upper part of the
seat belt is routed across the center of your
shoulder.
...
Starting route guidance to an entry
This function is available as soon as you
have stored a destination in the destination
memory. COMAND also
stores the destination in the address book
with the complete navigable address data. ...
Program selector button
General information
The program selector button allows you to
choose between different driving
characteristics.
Program selector button on all models except AMG
vehicles
For further infor ...