Frost on the windscreen inside.

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The A2 either has manual heating or it has climate control not air con as such.

I run climate all year round and always have done. Trouble is this time of year you have nice warm dry air inside the car that is then "sealed" in when you get out and shut the doors. The outside air is cold and damp and if the windscreen sealing is failing gets into the car through there. The warm(er) windscreen is a perfect spot for the condensation to form and if outside cold enough freeze.

Add in the design of the cabin heater box where the air drops down from the fresh air intake that does not take too much excess water to reach the pollen filter and then soak into the passenger carpet. Occasionally the climate drain gets blocked or disconnected and that puts water into the same area. So perhaps when we shut off our cars we should put the climate / heater into recirculate to try to prevent cold air entering that way, unfortunately that will not stop water getting in.
 
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My wife's A2 has the same problem. No leaks that I can find. Put it down to only doing short journeys so the car never warms up inside and the fact that she is breathing all the time. Told her to open the rear windows (just a crack) and hold her breath inside the car while driving. This was not considered helpful. The alternative is to go for a really long run with the heater on full blast and the rear windows open a crack, that has considerably improved the situation, though there is still a little condensation forming on the inside of the windows that then turns to ice.

While she was at her Pilates class last night see said that everyone had icing problems, even those with new cars. So I think a combination of short journeys and moisture leaden breath is a common problem.
 
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Well, no internal icing at all this morning. The car's still a bit damp inside, but having removed a couple of pints of water on Tuesday, and the sodden carpet/foam removed, to dry out, the difference is huge.
My only concern is how that much water got into the passenger footwell.
No sign of it having rum down the sides.
Mystified.
Mac.
 
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PlasticMac said:
Well, no internal icing at all this morning. The car's still a bit damp inside, but having removed a couple of pints of water on Tuesday, and the sodden carpet/foam removed, to dry out, the difference is huge.
My only concern is how that much water got into the passenger footwell.
No sign of it having rum down the sides.
Mystified.
Mac.
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I've just nudged the door hasps in a smidge, might help, won't do any harm.
Mac.
 
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hits said:
Does anyone get frost on the inside of the windscreen? How do I stop it happening?
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Make sure no bottles of water etc as these will increase the moisture internally, also worth turning your A/C onto recirculating as this will pull any moisture out without having to deal with external Relative humidity, obviously not for to long as air quality will suffer.
Worth reducing air temp a mile from journeys end losing the heat .
 
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