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:
Small children
Children that are over 1 year old and weigh
at least 20 lbs (9 kg) should remain in a
rear-facing child restraint as long as
possible up to the height or weight limit
of the child restraint. F ...
Checking the coolant level
NOTICE
Running the engine without coolant will cause serious engine damage.
The coolant level in the expansion tank should be checked at least weekly (more
frequently in high mileage or arduo ...
Headlamp Aiming
The vehicle has a visual optical headlamp aiming system. The aim of the headlamps
have been preset at the factory and should need no further adjustment.
However, if the vehicle is damaged in a crash ...







