Problems with the rear window defroster

The rear window defroster has deactivated itself prematurely or cannot be activated.

are not 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.

    See also:

    Activating/deactivating ATTENTION ASSIST
    •► Press the button on the steering wheel to select the DriveAssist menu. •► Press the button to select Attention Asst.. •► Press . The current selection is displayed. •& ...

    Vehicle data, GL 550
    The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

    Back button
    Press briefly:  - Back  - Switches off the Voice Control System  - Hides display messages or calls up the last Trip menu function used  - Exits the telephone bo ...