I am having trouble defrosting windows. Well not actually having trouble because I can do it however, I had a Beetle before my GTI and when I turned on the defroster it automatically turned on the air conditioning and turned the "fresh air" on. My GTI does not do this. I manually turn it on the air and the windows defrost great. Is this normal? I would have thought that all systems within VW would be the same. Input?
Defrost
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Mine automatically turns on the A/C (turns Econ mode off) when I put it to front window defrost only. Note, it doesn't do this when you put it on front window/floor mode. This usually annoys me cause when it's sub-zero and my windows are frosted on the outside a/c isn't gonna be worth a damn... I always turn it off right away.
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same here just wat thalo said.
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Every car I have ever owned turns on the A/C Condenser when you turn on the defrosters. It keeps moist air from being blown onto the windshield. Doesn't anyone ever hear the A/C compressor switching on and off when the defroster is on?
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That's true in a sense, except when it's cold and dry outside and you get in the car and you release body heat and moisture. When the moisture hits the windshield, it's gonna condense. Just because the A/C condenser comes on, it doesn't mean that the air your blasting onto the windshield is cold. It just means that the air runs through the A/C, then it goes through the heater core if you have the knob turned to hot (or the climate control switched to hot, in your case)
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You're right. If driving with one or more passengers and it's cold and dry out you probably will need to leave the A/C on. Happened to me once. When I'm just getting out of work though after the car was parked outside all day and a super cold day, it's usually just about getting the frost on the outside to melt.
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