Windows steam up in rain WHY?????

[phil t]

There could be a v. small leak letting in a small amount throughout the year, which would cause the car to steam up during the cold spell. Just to be on the safe side, you can seal the outside of the windscreen, with a window sealant which is available from a ships' chandlers shop. Sorry but I can't remember the name of the stuff, but used it a few years ago. Its a clear liquid and a small bottle af about 100 ml, and only costs a few quid.

Sorry I can't be more specific

[Alexg40]

It also occurs that if you yourself are wet or damp when you get in, your windows will steam up.

[Mixologist]

so the conclusion from all this, is there is any damp objects in your car, your buggered!!! 

[AZIM]

Shall be looking at the seal on the doors tomorrow.
Is there anywhere else that water might get in through ,
 may be in the boot area ??
still cant feel anything damp in the car

[tinman]

there is a thing that happens on my car where you start her up, turn on the heater and the windscreen mists up immediately. doesn't take long to clear.

can't see it being damp as the car is hardly used and is asleep in the garage all the time.

when i figure it out, i'll post it.

however, the old mk2 driver i had (bought it to get the Castellets off it) did have that problem and it was dampness that cause it. major leaks everywhere. car was scrapped soon after removing the wheels as it was obvious it had no floor.

[redhotjam]

I had this problem a few years ago, every winter the windows steamed up and no sign of any damp carpets or anything, it looked like i'd been up to something :with the missus !!   but summer came and all was fine again, then my internal heater motor packed in, so bought new one and found that the heater hose was a poor state, so replaced it, problem solved no more steamy windows so I think it was a small leak in the hose that was causing all the steam

[Organisys]

Welcome to winter in a Mk2. ... .. . .   

[Uruk Hai]

Does it use any coolant ? If so you could have a leak in the matrix causing the hot water that leaks out to steam up the windows but check everything else first as you don't want to change a matrix unless you have to !

[takethefifth]

I second the heater matrix idea, had the same thing on my old one. Very very little loss of coolant but i got through loads antifog stuff before i worked it out!

[Thom89]

First find your water leak! drain pipes on sunroof is a good place to start,
Clear out the plastic scuttle tray and surrounding areas of leaves etc, that may be blocking drain holes under the bonnet, lost grommets from bulkhead of car
Take off door cards, and check that the membranes are totally intacked, replace if not!
Check your cooling system is at the correct level, (heater matrix could be leaking into the car) the list really does go on.. happy hunting!
Tom