Mercedes-Benz 2013 GLS Class - Manual (Page 148)

Problems with the rear window heating
Problem Possible causes/consequences and M Solutions
The rear window heat-
ing has switched off
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heat-
ing can be activated again.
Activating/deactivating air-recircula-
tion mode
Points to observe before use
You can deactivate the flow of fresh air if
unpleasant odours are entering the vehicle
from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can mist up more quickly, in partic-
ular at low temperatures. Only use air-recir-
culation mode briefly to prevent the windows
misting up.
The operation of air-recirculation mode is the
same for all control panels.
Switching on/off
X Turn the key to position 2 in the ignition
lock ( Y page 157).
X To activate: press the g button.
The indicator lamp in the g button lights
up.
i THERMATIC automatic climate control:
air-recirculation mode is activated auto-
matically at high outside temperatures.
THERMOTRONIC automatic climate con-
trol: air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures.
When air-recirculation mode is activated
automatically, the indicator lamp above the
g button does not light up. Outside air
is added after about 30 minutes.
X To deactivate: press the g button.
The indicator lamp in the g button goes
out.
i Air-recirculation mode deactivates auto-
matically:
R
after approximately five minutes at out-
side temperatures below approximately
5 †
R
after approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
R
after approximately 30 minutes at out-
side temperatures above approximately
5 † if the "Cooling with air dehumidifi-
cation" function is activated
Convenience opening/closing using
the air-recirculation button
G WARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts
of the body are in the closing area.
G
WARNING
During convenience opening parts of the body
could be drawn in or become trapped
146
Operating the climate control system
Climate control