Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 139

Operating the climate control system
136
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Air-recirculation mode deactivates auto-
matically:
after approximately five minutes at out-
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side temperatures below approximately
5 †
after approximately five minutes if cool-
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ing with air dehumidification is deactiva-
ted
after approximately 30 minutes at out-
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side temperatures above approximately
5 † with the "cooling with air dehumidi-
fication" function switched on.
Convenience opening/closing using
the air-recirculation button
G WARNING
Make sure that nobody can become trapped
between the side window and the door frame
as the side windows are opened and closed.
Make sure that all objects and body parts are
clear of the side windows when they are being
opened or closed. You or the objects could be
drawn in or become trapped between the side
window and the door frame as the window
moves. If there is a risk of entrapment, oper-
ate the W switch to move the side window
in the opposite direction.
Make sure that nobody can become trapped
as the panorama sliding sunroof is opened
and closed. If there is a risk of entrapment,
operate the 3 switch to move the pano-
rama sliding sunroof in the opposite direction.
Convenience closing feature: press and
X
hold the g button until the side win-
dows and the panorama sliding sunroof are
closed.
The indicator lamp in the g button lights
up. Air-recirculation mode is activated.
Convenience opening feature: press and
X
hold the g button until the side win-
dows and the panorama sliding sunroof
have opened. The side windows and the
panorama sliding sunroof move back to
their original position.
The indicator lamp in the g button goes
out. Air-recirculation mode is deactivated.
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If you open the side windows or the pan-
orama sliding sunroof manually after clos-
ing with the convenience closing feature,
they will remain in this position when
opened using the convenience opening fea-
ture.
Activating/deactivating the residual
heat function
The "Residual heat" function is only available
with THERMOTRONIC automatic climate con-
trol.
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the temperature that has
been set for the vehicle interior.
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The blower will run at a low speed regard-
less of the airflow setting.
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If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
Turn the key to position 0 in the ignition
X
lock or remove it.
To activate: press the Ì button.
X
The indicator lamp in the Ì button lights
up.
To deactivate: press the Ì button.
X
The indicator lamp in the Ì button goes
out.
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Residual heat is deactivated automati-
cally:
after approximately 30 minutes
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when the ignition is switched on
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if the battery voltage drops
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when the auxiliary heating is activated
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