Windows fogged up on the inside
Activate the cooling with air
dehumidification function 
.
Activate automatic mode
.
If the windows continue to fog up,
activate the defrosting function.
You should only select this
setting until
the windshield is clear again.
See also:
Closing
WARNING
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk lid. Be
especially careful when small children are
around.
...
Windshield washer system and headlamp cleaning system
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
Vehicle components and their
service
products must match. You should,
therefore, ...
Frequencies for the garage door opener
The radio type approval number and the frequency range for the garage door
opener can be
found on the Internet at: http://www.mercedes-benz.de/betriebsanleitung. ...