Frost on inside of windscreen?

ferry

Cant say ive experienced this before with any of my previous cars -last couple days ive had the need to scrape a thin layer of frost from the inside of my windsrceen.
Any else experience this or maybe a poorly sealed windscreen?
Thanks

DoaM

It'll be moisture that was in the vehicle when you existed, which has condensed onto the windscreen then frozen due to the very low temperatures.

Do you have your aircon on all the time? Did your previous cars have aircon?

Billy_Bullocks

Not had than since the 1980s.

foxy-stoat

Check for damp carpet, its just frozen condensation.

Richard53

As above. I run two cars at the moment (1992 Merc, 1999 Mazda), neither of which has aircon, and I am getting this problem all the time. All you can do is make sure that the car is as dry as possible inside - check online forums for known leak points, check heater for leaks, check carpets for moisture etc. Try not to breathe for the first five minutes when you get in! Try to avoid getting in with wet clothing and footwear.


One trick that may help: warm air holds more moisture than cold, so turning off the heater and cracking a window for the last couple of miles means that you have cold air in the car overnight. This should mean less moisture to condense onto the cold screen and windows as the temperature drops.


Ultimate solution: keep a small fan heater in the car and run a cable out from the house. Run it for 30 minutes before setting off. Clear windows, warm car.

martinthebandit

I used to put a hot water bottle on the drivers seat in mine overnight, it helped a little and the tepid water in the bottle in the morning was perfect for pouring over the windscreen to defrost it in the morning.

DUTR

ferry wrote: »

Cant say ive experienced this before with any of my previous cars -last couple days ive had the need to scrape a thin layer of frost from the inside of my windsrceen.
Any else experience this or maybe a poorly sealed windscreen?
Thanks

Only times I have experienced that transpired to be the heater matrix leaky.

Jamiesmum

I've had this a couple times, also this morning. I buy a dehumidifier tray for about a fiver and leave it in the car. It's meant to attract any moisture to save it building up.

Do you have your windows open if it's raining?

ferry

Thanks guys. I have air con but its never on . To be honest it does seem to happen when i had been driving for a while with the heating on and then the car is parked up. I'll try the window open for a bit trick

Thanks all

Richard53

Use the aircon. That's what it's there for.

stator

I use gel dehumidifier pads, instead of turning into water that sloshes around they turn into a gel so it's safe to use in a car. They seem to work well but I guess it depends how often you open the car doors as if you're constantly in and out of the car they won't have a chance to work. I buy them from Wilkinsons:
http://www.wilko.com/insulation/kilrock-gel-safe-moisture-trap-refill-x-2/invt/0286005
(You don't need the plastic holder, just the refils)