Question about 2002 Volkswagen Jetta TDI
Yesterday while driving in the rain, my windows got really foggy and didn't clear up, even with the defroster running full blast. My air conditioner is broken (it has been since I bought the car) but I've driven in the rain before plenty of times and this hasn't happened. When I got out of the car, I noticed that the floor mat on the passenger side was soaking wet. It is wet with water, not coolant. I know that coolant on the floor is a sign of a broken heater core, but I'm sure this was water. Driving again today, I found the carpets were still wet. It was not as cold and wasn't raining but my windows still fogged up pretty quickly even though my fans/defroster/heater were turned off. I tried turning on my defroster but it took forever, even though it was obviously blowing hot air on the windshield. In addition, all the windows in my car got foggy and stayed that way for the entire trip. I plan on taking it in some time this weekend, but I just wanted to get an idea of what to expect. Two of the solutions I've found are broken heater core or a clogged AC hose. The AC hose would explain the water coming up through the floorboards and the fogging. I really hope it is not the heater core because I can't afford to fix that right now and I don't know enough about cars to fix it myself. Help?
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Posted on Jan 02, 2017
I had exactly the same problem. A drain pipe running down behind the Fire wall is blocked, You will find the pipe outlet in the enjin compartment. Open the bonnet of your Jetta and look low down at the firewall on the right hand side of your enjin. The outlet is hidden behind a black rubber cover. You can open the drain pipe from the outlet side.
Posted on Aug 08, 2009
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