Mercedes-Benz E-Class: Problems with the rear window 
defroster - Rear window defroster - Operating the climate control system - Climate control - Mercedes-Benz E-Class Owners ManualMercedes-Benz E-Class: Problems with the rear window defroster

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.

    Activating/deactivating
    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 ...

    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-recirculat ...

    See also:

    How to park with predicted course lines
    WARNING: - Always turn and check that it is safe to do so before backing up. Always back up slowly. - Use the displayed lines as a reference. The lines are highly affected by the number of occupa ...

    Running the Vehicle While Parked
    It is better not to park with the engine running. But if you ever have to, here are some things to know. WARNING Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine ex ...

    Install
    1. Align the head restraint stalks with the holes in the seat. Make sure the head restraint is facing the correct direction. 2. Push and hold the lock knob and push the head restraint down. 3. ...