Condensation inside windshield/windows of GTI

synapse88 · 03-11-2011, 11:30 AM

I have a 2008 GTI that I pretty much stopped driving when I bought my 335i. I'm about to sell it, but I've noticed that it has been developing condensation inside the car, on the windshield and sometimes the windows. I notice it in the morning, and I'm thinking it's probably gone by the time I get home from work. As a result the car is a little mustly smelling, and this problem has never happened before.

Since buying my new car, I have been parking the GTI on the street, and because of this the car does get hit with sun that it didn't when I parked in the driveway...maybe that's causing it?

Is there just moisture trapped in there that needs to get gone? Is it as simple as that? I tried running the AC for like an hour thinking that would bring down the humidity levels...but that didn't help that much. I can't detect and dampness/spills on the carpet....

And advice?

Dackelone · 03-14-2011, 08:13 PM

Check your sunroof drains (A-pillar and C pillar) and your HVAC evap drain tube.

Somehow water is getting into your car and then the condensation showing up on your windows. Throwing in some of those water collecting bags (like that come in electronics, you can buy big bags of that stuff at your HomeDepot, ect)would be a good idea too.

JimmyT · 03-15-2011, 09:10 AM

they sell stuff at wal mart to soak up humidity in the car. Spray some lysol into the HVAC system through the outside air intake near the windshield and change the HVAC hepa filter under the passenger side dash. If the funky smell remains, consider professional detailing to make the car buyer ready, and to present a better image, picture on craigslist or wherever you plan to advertise the car for sale. GLWTS!!

03-11-2011, 11:30 AM	#1
synapse88 Enlisted Member 13 Rep 47 Posts Drives: 2007 335i Join Date: Oct 2010 Location: NC iTrader: (0)	Condensation inside windshield/windows of GTI I have a 2008 GTI that I pretty much stopped driving when I bought my 335i. I'm about to sell it, but I've noticed that it has been developing condensation inside the car, on the windshield and sometimes the windows. I notice it in the morning, and I'm thinking it's probably gone by the time I get home from work. As a result the car is a little mustly smelling, and this problem has never happened before. Since buying my new car, I have been parking the GTI on the street, and because of this the car does get hit with sun that it didn't when I parked in the driveway...maybe that's causing it? Is there just moisture trapped in there that needs to get gone? Is it as simple as that? I tried running the AC for like an hour thinking that would bring down the humidity levels...but that didn't help that much. I can't detect and dampness/spills on the carpet.... And advice?
	Appreciate 0 Tweet Quote

03-14-2011, 08:13 PM	#2
Dackelone European Editor 10805 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Check your sunroof drains (A-pillar and C pillar) and your HVAC evap drain tube. Somehow water is getting into your car and then the condensation showing up on your windows. Throwing in some of those water collecting bags (like that come in electronics, you can buy big bags of that stuff at your HomeDepot, ect)would be a good idea too.
	Appreciate 0 Quote

03-15-2011, 09:10 AM	#3
JimmyT Redneck Engineer 18 Rep 435 Posts Drives: 2011 135i Join Date: May 2009 Location: Washington iTrader: (0)	they sell stuff at wal mart to soak up humidity in the car. Spray some lysol into the HVAC system through the outside air intake near the windshield and change the HVAC hepa filter under the passenger side dash. If the funky smell remains, consider professional detailing to make the car buyer ready, and to present a better image, picture on craigslist or wherever you plan to advertise the car for sale. GLWTS!! __________________
	Appreciate 0 Quote