Mercedes-Benz GL-Class: Rear window defroster - Operating the climate control system - Climate control - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Rear window defroster

Activating/deactivating

WARNING Any accumulation of snow and ice should be 
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 button.

The indicator lamp in the lights button lights up or goes out.

Problems with the rear window defroster

If the indicator lamp in the rear window rear window defroster button flashes, the on-board voltage is too low or the roof is open. The rear window defroster has deactivated itself prematurely or cannot be activated.

► Switch off any consumers that are not required, e.g. reading lamps or interior lighting.

When the battery is sufficiently charged, the rear window defroster is activated again automatically.

    Defrosting the windows
    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 defr ...

    Activating/deactivating airrecirculation mode
    You can deactivate the flow of fresh air if unpleasant odors are entering the vehicle from outside. The air already inside the vehicle will then be recirculated. The operation of air-recirculati ...

    See also:

    Push-button ignition switch positions
    LOCK (Normal parking position) The ignition switch can only be locked in this position. The ignition switch will be unlocked when it is pushed to the ACC position while carrying the Intellige ...

    Shoulder Belt Height Adjuster
    The vehicle has a shoulder belt height adjuster for the driver and right front passenger positions. Adjust the height so the shoulder portion of the belt is on the shoulder and not falling off of i ...

    Engine Power Mes
    ENGINE POWER IS REDUCED This message displays and a chime sounds when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overh ...