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:
Off-road driving
Important safety notes
WARNING
If you drive on a steep incline at an angle or
turn when driving on an incline, the vehicle
could slip sideways, tip and rollover. There is
a risk of an accident.
...
Genuine Mercedes-Benz parts
WARNING
Driving safety may be impaired if nonapproved
parts, tires and wheels or safetyrelevant
accessories are used.
This could lead to malfunctions in safetyrelevant
systems, e.g. the brake s ...
General notes
Please note that for the specified vehicle
data:
R the heights specified may vary as a result
of:
- Tires
- Load
- Condition of the suspension
- Optional equipment
R the vehicle length specifi ...