Mercedes-Benz C-Coupe 2013 Owners Manual - Manual (Page 130)

X Adjust the side air vents so that the warmed
air is directed to the side windows.
X
If the windows continue to fog up, activate
the "windshield defrosting" function
(
Y
page 127).
i You should only select this setting until
the windshield is clear again.
Windows fogged up on the outside
X Activate the windshield wipers.
X Press the _ button repeatedly until the
O or P symbol appears in the
display.
X Adjust the side air vents so that no air is
directed to the side windows.
Rear window defroster
Activating/deactivating
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X Turn the SmartKey to position 2 in the
ignition lock (
Y
page 133).
X
Press the ¤ button.
The indicator lamp in the ¤ button lights
up or goes out.
128
Operating the climate control systems
Climate
control