Activating/deactivating

Any accumulation of snow and ice should be WARNING
Any accumulation of snow and ice should be removed from the rear window before driving.
Visibility could otherwise be impaired, endangering you and others.

The rear window defroster has a high current draw. You should therefore switch it off as soon as the window is clear as it only 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 The indicator lamp in the button button.
The indicator lamp in the lights button lights up or goes out.

    See also:

    Distance warning function (vehicleswith DISTRONIC)
    This function provides a warning from a speed of approximately 20 mph(30 km/h), if: • for a period of several seconds, the distance to the vehicle in front is too short for the speed at which you ...

    Pedestrian recognition
    WARNING Pedestrian recognition may be impaired or inoperative if: - pedestrians are partially or entirely obscured by objects, e.g. parked vehicles. - the silhouette of the pedestrian in the N ...

    Back button
    1 Back button To exit the menu: press back button 1 briefly. COMAND changes to the next higher menu level in the current operating mode. You can also exit a menu by sliding or the CO ...