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.
■ To activate: press the 
button.
The indicator lamp in the 
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.
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 • when the auxiliary heating is activated
See also:
Roadside Assistance
The Mercedes-Benz Roadside Assistance
Program offers technical help in the event of
a breakdown. Calls to the toll-free Roadside
Assistance Hotline are answered by our
agents 24 hours a day, 365 d ...
Information for customers in
California
In California, you have the right to exchange a vehicle or receive a refund
of the purchase
or leasing price if Mercedes-Benz USA, LLC
and/or an authorized workshop or
maintenance facility cannot ...
Off-road driving systems
4MATIC (permanent four-wheel drive)
If you fail to adapt your driving style, 4MATIC
can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, we ...