Moisture problem inside car

Strider590

cherryblossomzel wrote: »

I just noticed that there is a 3 inch tear in the bottom of the driver's side door seal (the one on the body of the car, not the one around the door). Is that enough to cause a problem?

Sealing the inside of the car from the outside is not what matters, in fact that would make things worse, you already have small vents in the boot, which lead out into the space behind the rear bumper. If the door seal tear isn't causing water to flood in, then it's probably not an issue. The problem is the inside air has more moisture than the outside.

This might help you understand
http://www.dpcalc.org/

Set the first slider (air temperature) for 20c and the humidity for a typical winters 30%, the 3rd slider shows the temperature required to form condensation on a surface (windscreen).

So at 20 degrees and 30%, a 2 degree C surface will form condensation.
But at 30 degrees and 30%, all it takes is a surface temp of 11 degrees C.
Finally, if the inside was at 5 degree's 30%, you'd need -11 outside before condensation would form.
I'm also being generous with the humidity level, inside a warm car with a driver/passenger, it'd be closer to 50% humidity.

Basically the cooler the air inside, the less condensation you'll get and if your anything like my GF, you'll be blasting uncomfortably hot air into the car on every journey past late October.

saveallmymoney

Its because you are using the AC some of the time.

Use it never or always.

teffers

This happens to my car every winter.

It's freezing outside, you open the door for slightly too long, the moisture in the car interior air then freezes to the windscreen.

Some cars are worse than others.

Stevie_Palimo

Could be worth getting the pedal box looked at as I just had this on my missus car and it was letting in a lot of water.

heartbreak_star

I generally presume it's people getting in the car when it's raining - coats, shoes etc leaving water in the car.

Mind you, my Corsa did have an interesting issue whereby a drainage chute under the bonnet was blocked and could I heck unblock it, so every so often I'd get a gentle waterfall into the passenger footwell for a few seconds. Used to just put a towel down if it had been raining...

HBS x

Hedgehog99

Once you've checked filters & seals as others have said above,...

...I run the aircon for the last 15 mins of a journey in the winter (if I haven't already needed it for the rest of my journey) so that the vapour from my breath doesn't condense in the car overnight.

If you have had to drive with the air intake vents shut (e.g. if stuck behind a stinky lorry), that'll increase condensation inside.

You could try a dehumidifier with crystals/a tablet left in overnight - the type that collect the liquid in a reservoir underneath. Remember to take it out before you drive though otherwise the collected liquid will spill. If you don't want to buy the plastic holder unit, just use a kitchen sieve over a jug of the right size (sieve must sit entirely within rim of jug) & put the crystals or tablet in the sieve.

JustinR1979

heartbreak_star wrote: »

I generally presume it's people getting in the car when it's raining - coats, shoes etc leaving water in the car.

Mind you, my Corsa did have an interesting issue whereby a drainage chute under the bonnet was blocked and could I heck unblock it, so every so often I'd get a gentle waterfall into the passenger footwell for a few seconds. Used to just put a towel down if it had been raining...

HBS x

Good old Vaux, used to fill with mud and crap.
I always cut the end off so it had a decent hole in it, strange design.

atrixblue.-MFR-.

Maybe worth looking to see if you got any clothing or cloths in the car that are damp.


Got out to my car this morning I had same issue when I opened the door you could watch the condensation build, its just the temp in my opinion.

AdrianC

You haven't got the airflow set to recirculate?

Strider590

I'm out.... Not in a good mood and CBA to get into arguments over this, some people here know what they're talking about, the rest are repeating nonsense they heard from a friend of a friend of a friend, who probably believes more superstition than science.