Mercedes-Benz C-Class Operator's Manual page 138

Operating the climate control systems
136
Defrosting the windows
Windows fogged up on the inside
Activate the "Cooling with air dehumidifica-
X
tion" function with the ¿ rocker switch.
Switch on automatic mode using the Ã
X
rocker switch.
If the windows continue to fog up, activate the
X
"Windshield defrosting" function using the
¬ rocker switch.
i
You should only select this setting until the
windshield is clear again.
Windows fogged up on the outside
Activate the windshield wipers.
X
Switch on automatic mode using the Ã
X
rocker switch.
i
If you clean the windows regularly, they do
not fog up so quickly.
Rear window defroster
General notes
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.
Switching on/off
Turn the SmartKey to position 2 in the ignition
X
lock ( page 146).
Y
Press the ¤ rocker switch up or down.
X
The indicator lamp above the ¤ rocker
switch lights up or goes out.