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peebles24 · Joined: 27 Jul 2007 Posts: 43 Location: Terre Haute, IN

I am having problems with my windows fogging up real bad. Over night they will frost on the inside. Open the car in the morning and I have to wipe down the windows and the headliner because of all the dew. I have never seen a car fog (dew) up like this inside.

Has anyone ever had this problem and is there some cure.

Thank You,
Chad P.
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1981 924 Weissach, progressive rate coils, Dansk Polished S/S exhaust, free flow Cat, K&N filter

1991 Toyota FJ80

Rich H · Posted: Sun Jan 13, 2008 3:50 am Post subject:

My car does that, check that the rear hatch seal is good and you have no leaks. There are rubber bungs all over the chassis that will be letting in the moist air. Chances are you will just have to put up with it as you'll never get the car properly dry ever again. If you have a friendly bodyshop nearby you could ask them to bake it for you. Used to do that when I worked in a paintshop, dries them out a treat.
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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

2Fast · Joined: 09 Dec 2007 Posts: 459 Location: Klamath Falls, OR

Nobbi · Joined: 24 Aug 2006 Posts: 1396 Location: Germany

Take out your wet washing supplies,dry your floor carpet, check passenger side for water,maybe your heating system has a leak.Drive with vents open.Check rubber seals in the chassis,round black ones in the trunk area.
Nobbi

peebles24 · Joined: 27 Jul 2007 Posts: 43 Location: Terre Haute, IN

I know my 91 land cruiser has at least one bad door seal and it doesn't do this. My passenger side carpet is wet but it's behind the front seat. What would a paint shop charge me to bake it?
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1981 924 Weissach, progressive rate coils, Dansk Polished S/S exhaust, free flow Cat, K&N filter

1991 Toyota FJ80

Smoothie · Posted: Sun Jan 13, 2008 12:47 pm Post subject:

Yessir, it means you have too much moisture in the car. Obviously find out where it's coming in and try to fix that, but in the mean time, you don't have to live with the fogged/frosted on the inside windows situation. The fix for that is easy - just leave the windows opened about 1/4", or more if you can or dare.
The problem is, when it's cold out, you drive around with the heat on, get the interior nice and warm, then park and shut the windows - now the warm interior air can and does hold moisture...eventually the cold outside air cools the windows, then moisture from the interior air condenses on the insides of the windows. If below freezing, it turns to frost. By simply leaving the windows opened a bit, colder, drier air is allowed in, and warm moist air is let out, until temperature and humidity equalize between interior-exterior and wholla - no condensation, and no frost.
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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

Paul · Posted: Sun Jan 13, 2008 1:31 pm Post subject:

Is this happening after a "date" with your gf?
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

peebles24 · Joined: 27 Jul 2007 Posts: 43 Location: Terre Haute, IN

PORSCHEV · Posted: Mon Jan 14, 2008 1:42 am Post subject:

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

tuurbo · Posted: Mon Jan 14, 2008 3:53 am Post subject:

Drains:

If you have a sunroof there are holes you can use compressed air to blow out any grunge and let the area drain.

Under your rear light assembly there is a light colored hose that goes down into behind the wheel well - blow that out too - also make sure the rubber hose goes into a rubber grommet thing and lets the water go outside the car. I've seen that area fill with water when the hose isn't plumbing outside.
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1980 924 turbo, MSD, Meth. Inj, otherwise stock.

peebles24 · Joined: 27 Jul 2007 Posts: 43 Location: Terre Haute, IN