Rear window defroster
Activating/deactivating
The rear window defroster has a high current draw. You should therefore switch it off as soon as the rear window is clear. Otherwise, the rear window defroster switches off automatically after several minutes.
If the battery voltage is too low, the rear window defroster may switch off.
■ Turn the SmartKey to position 2 in the ignition lock .
■ Press the 
button.
The indicator lamp in the 
button
lights
up or goes out.
Problems with the rear window defroster
See also:
Navigation system menu
Displaying navigation inst
In the Navi menu, the multifunction display
shows navigation instructions.
For more information, see the separate
operating instructions.
► Switch on COMAND ( ...
Driving tips
General driving tips
Important safety notes
WARNING
Always remember that you must concentrate
primarily on driving the vehicle. The driver's
concentration must always be directed
primarily at r ...
Headlamps and indicator lamps
fogged up on the inside
The headlamps and the indicator lamps in the
exterior mirrors may fog up on the inside if
there is high atmospheric humidity.
► Drive with the headlamps switched on.
The level of moistur ...