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 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.

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

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

- Turn the SmartKey to position 0 in the ignition lock or remove it.
- To activate: press the The indicator lamp in the button.
The indicator lamp in the button lights up. button lights up.
- To deactivate: press the button. button.
The indicator lamp in the button goes out. button goes out.

Residual heat is deactivated Residual heat is deactivated automatically:
- after about 30 minutes
- when the ignition is switched on
- if the battery voltage drops
- if the coolant temperature is too low

    See also:

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    Notes on technical data
    The data stated here specifically refers to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...