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Climate Controls -> Operating Tips for Your Volkswagen Routan SUV First Generation (2009-2014)

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Winter Operation  
Window Fogging  
To ensure the best possible heater and defroster perfor- Vehicle windows tend to fog on the inside in mild, rainy  
mance, make sure the engine cooling system is function- and/or humid weather. To clear the windows, select  
ing properly and the proper amount, type, and concen- DEFROST or MIX mode and increase the front blower  
tration of coolant is used. Refer to “Maintenance speed. Do not use the RECIRCULATION mode without  
Procedures” in “Maintaining Your Vehicle” for proper A/C for long periods, as fogging may occur.  
coolant selection. Use of the air RECIRCULATION mode  
during Winter months is not recommended, because it  
Make sure the air intake, located directly in front of the  
may cause window fogging.  
Outside Air Intake  
windshield, is free of obstructions such as leaves. Leaves  
Vacation/Storage  
collected in the air intake may reduce airflow, and if they  
Before you store your vehicle, or keep it out of service enter the plenum they could plug the water drains. In  
(i.e., vacation) for two weeks or more, run the air Winter months make sure the air intake is clear of ice,  
conditioning system at idle for about five minutes, in slush and snow.  
fresh air with the blower setting on high. This will ensure  
adequate system lubrication to minimize the possibility  
of compressor damage when the system is started again.  
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Operating Tips  
21  
A/C Air Filter— If Equipped  
On vehicles equipped with Automatic Three Zone Tem-  
perature Control (ATC), the climate control system filters  
out dust and pollen from the air. Refer to “Air Condi-  
tioning” in “Maintaining Your Vehicle” for filter replace-  
ment instructions.