Mercedes-Benz GL-Class: Activating/deactivating the residualheat function
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
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.
► 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 switch off: press the
button.
The indicator lamp in the
button
goes
out.
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
Activating/deactivating airrecirculation mode
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
The operation of air-recirculati ...
See also:
Window anti-trap protection
WARNING
Before closing a window or the sunroof, ensure that no occupants have any part
of their body in a position where it could be trapped. Even with an anti-trap system,
death or serious ...
How to Reset the Engine Oil Life System
Reset the system whenever the engine oil is changed so that the system can calculate
the next engine oil change. Always reset the engine oil life to 100% after every
oil change. It will not reset it ...
Emergency key
Note: There are two designs of Smart Key, refer to the information which is relevant
to the design of Smart Key supplied with the vehicle.
A. Press emergency key release button and pull out side ...







