Condensation?

[Guest]

Guys, my 88' 944 seems to have a condensation issue - I have recently had to replace my inner sunroof seal and repair the mechanism, needless to say the rear passenger seats were sodden - now they seem to be drying out afer a couple of days but I still seem to be getting condensation on my rear screen (not as much) I know I dont have any leaks in the boot as I have removed the carpet and checked all the drain tubes on the sun roof and the filler neck as well as the rear lid catches. The boot carpet has been out of the car for 3 day now just to ensure I will be able to spot any leaks. I cant find any evidence of the rear hatch seal leaking - I was wondering if this will just take a couple of weeks to completely dry out? Has anyone else experiernced this or any thing similar? Does any one aggree with my theory?

Regards . . .

 

[Fen]

You'll get condensation until everything has dried out.

 

[cornishgrose]

You will get condensation through the weather we are having. All the cars in our compound get condensation overnight and at about 4.30pm onwards. It is not a leak (hopefully).

 

[Fen]

I assume he meant on the inside and I wouldn't expect a car to do that unless it leaks.

 

[Guest]

Yep. it'll just take time (assuming you've cured all the leaks!)

 

[sawood12]

If you have access to a garage you can lock it up for a couple of days or for a few nights with a dehumidifyer running which you can rent for a few quid a day from a plant hire place works pretty effectively from other threads i've read.

 

[Guest]

Surely there is always some humidity in cars because they are not a sealed atmosphere? Even with no leaks moisture will come in through ventilation, when the air gets very cold the moisture forms condensation on cold surfaces. Thinking back several decades to O levels. I got one in physics and one in "stating the obvious".[8|][]

 

[cornishgrose]

Scz is right, which is why most cars will get condensation inside. I tried some Rain-x anti-fog liquid which you apply to the windows and that helped a great deal. Or you could use this as an excuse to go to a sunny hotspot, (Turin, Barcelona or Monaco).

 

[Fen]

Well I never find that my car mists up on the inside if driven regularly, so while I agree to a point I think you need to leave a car sitting around for at least a few days before it will mist up inside if it doesn't leak. They do tend to mist up when they are really cold and you get inside them and start breathing of course, but that shows how little moisture must be in them otherwise as the amount in the breath of one person for a couple of minutes or less mists them up when they weren't before.

 

[John Sims]

Most vans have a head lining in the front and none at the rear. From the comments above I think some would be stunned as to how wet the inside of the roof gets on a cold day - water will drip off the roof if the skin of the vehicle is cold enough (as "O" Level physics will testify). Not having stripped the inner linings off a car on a cold day to see I would assume that (unless the linings form a sealed vapour barrier) the inner face of the steel will be wet.