Mercedes-Benz 2013 GLS Class - Manual (Page 147)

Demisting the windows
Windows misted up on the inside
X Activate the ¿ cooling with air dehu-
midification function.
X Activate automatic mode Ã.
X Adjust the side air vents so that the heated
air is directed towards the side windows.
X If the windows continue to mist up, activate
the "windscreen demisting" function
(
Y page 144).
i You should only select this setting until
the windscreen is clear again.
Windows misted up on the outside
X Press the _ button repeatedly until the
P or O symbol appears in the dis-
play.
X Adjust the side air vents so that no air is
directed towards the side windows.
Rear window heating
Switching on/off
The rear window heating has a high current
draw. You should therefore switch it off as
soon as the window is clear. It otherwise
switches off automatically after several
minutes.
If the battery voltage is too low, the rear win-
dow heating may switch off.
X Turn the key to position 2 in the ignition
lock ( Y page 157).
X Press the ¤ button.
The indicator lamp in the ¤ button lights
up or goes out.
Operating the climate control system
145
Climate control