Mersedes SUV Manuals

Activating/deactivating the residual heat function

Mercedes-Benz GL-Class / Mercedes-Benz GL-Class Owners Manual / Climate control / Operating the climate control systems / Activating/deactivating the residual heat function

The "residual heat" function is only available in Canada.

It is possible to make use of the residual heat


It is possible to make use of the residual heat of the engine to continue heating the stationary vehicle for up to 30 minutes after the engine has been switched off. The heating time depends on the temperature that has been set.

To activate: press the button.


The indicator lamp in the button lights up.
button lights up.

The blower will run at a low speed regardless of the airflow setting.

If you activate the residual heat function at high temperatures, only the ventilation will be activated. The blower runs at medium speed.

To deactivate: press the button.
button.

The indicator lamp in the button goes out.
button goes out.

Residual heat is deactivated automatically: after approximately 30 minutes when the ignition is switched on if the battery voltage drops when the auxiliary heating is activated

    See also:

    Pulling away
    Automatic transmission WARNING If the engine speed is above the idling speed and you engage transmission position D or R, the vehicle could pull away suddenly. There is a risk of an accident. ...

    Switching the windshield wipers on/ off
    Do not operate the windshield wipers when the windshield is dry, as this could damage the wiper blades. Moreover, dust that has collected on the windshield can scratch the glass if wiping takes pl ...

    Reporting safety defects
    USA only: The following text is published as required of manufacturers under Title 49, Code of U.S. Federal Regulations, Part 575 pursuant to the "National Traffic and Motor Vehicle Safety ...

    © 2025 Copyright www.mersuv.com