Mercedes-Benz E-Class: Important information - Activating/deactivating cooling with 
the air dehumidification function - Operating the climate control system - Climate control - Mercedes-Benz E-Class Owners ManualMercedes-Benz E-Class: Important information

The cooling with air dehumidification function is only available when the engine is running.

The air inside the vehicle is cooled and dehumidified according to the temperature selected.

WARNING
If you switch off the cooling function, the vehicle will not be cooled when weather conditions are warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others.

Condensation may drip from the underside of the vehicle when it is in cooling mode. This is normal and not a sign that there is a malfunction.

The cooling with air dehumidification function uses refrigerant R134a. This coolant does not contain chlorofluorocarbons, and therefore does not damage the ozone layer.

    Activating/deactivating
    •► To activate: press the button. The indicator lamp above the button lights up. •► To switch off: press the button. The indicator lamp above the button goes out. Th ...

    See also:

    Navigation
    This display is used for the OnStar or Navigation System Turn-by-Turn guidance. See OnStar Overview or the navigation manual, if the vehicle has navigation, for more information. ...

    Rear Window Defogger
    (Rear Window Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off automatically after about 10 minutes. If turned on again it runs for about five ...

    ESC Activation/Malfunction Indicator Light And ESC Off Indicator Light
    The “ESC Activation/Malfunction Indicator Light” in the instrument cluster will come on when the ignition switch is turned to the ON position. It should go out with the engine running. I ...