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 coolant temperature and on the interior temperature that has been set.
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.
► Turn the SmartKey to position 0 in the ignition lock or remove it.
► To activate: press the 
button.
The indicator lamp in the 
button
lights
up.
► To deactivate: press the 
button.
The indicator lamp in the 
button
goes
out.
Residual heat is deactivated
automatically:
• after approximately 30 minutes
• when the ignition is switched on
• if the battery voltage drops
• if the coolant temperature is too low
See also:
Important safety notes
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.
When engaging transmissi ...
Warranty
Your vehicle is covered under the terms of the
warranties printed in the Service and
Warranty Information booklet.
Your authorized Mercedes-Benz Center will
replace and repair all factory-installe ...
Useful information
This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
...