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:

    Opening
    Switch off the engine. emove the SmartKey from the ignition lock. KEYLESS-GO: open the driver’s door. This switches the ignition to position 0, which corresponds to having removed the SmartK ...

    Time/date
    This submenu is only available on vehicles with Audio 20. To set the time and the date for vehicles with COMAND, see the separate operating instructions. In the Time/date submenu, you can set the t ...

    Immobilizer
    The immobilizer prevents your vehicle from being started without the correct SmartKey. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be starte ...