[jutes85]

Now that it's getting cold around here, I have to use the heater more frequently...high of 9F today. Problem is, in the mornings I get a sheet of frost/ice on the inside of the windshield and windows. Is this due to a bad window seal somewhere or should I be using the ac system when I use the heater to get rid of the moisture? I can deal with frost on the outside, but i hate leaving the car running for 5 min just to get the inside of the windows to de-frost.

Suggestions?

[Sti491]

Use ac plus heat.

[300hp@6000rpm]

Could be a seal. However, I've seen quite a few cars fog up on the inside due to a window accidentally being left open while it was raining. The moisture in the carpet/seats/floormats/etc usually doesn't evaporate immediately and causes condensation on the inside of the car. Not sure if this is relevant to you, but its one of the probable causes.

[AMTEXX]

Change your cabin air filter. Solved my problem instantly.

[TheLimitedProject]

Ice/Frost inside the car?? I've never seen that on any car. You just mean fogging up right?

[jutes85]

Yeah, it fogs up, then after it sits overnight that fog turns into ice.

[05_GD7]

Hey dude, come on, you're around F18's all day, you should know about condensation nuclei

For frost to form, the moisture needs to latch onto something in order to condense - ie dust or dirt.

1st thing, give the inside of the windows a thorough cleaning. That will help a lot.

2nd, do you have a garage? If so, leave a window cracked open during the night. Frost also forms because the moisture given off by your body, or melted snow in your floormats is trapped inside the car and condenses on your windshield. Cracking a window equalizes the humidity with the outside air.

3rd - as others have said, change your cabin filter - lessen the dirt that I mentioned before.

[Peleg]

Rain-X has a product against that. give it a try.

[fugi]

I heard that if you rub Shaving cream onto your bathroom mirror it will never fog up after you shower. Does anyone want to try shaving cream in their car windows?

[Majin]

Originally Posted by Sti491

Use ac plus heat.

ac + max temperature + max fan speed + "recycle air" button as well. the longer this is on for, the dryer the interior will get.

sounds like you have too much moisture inside the car. check your car for weatherstripping damage.

[wdb]

Originally Posted by Majin

ac + max temperature + max fan speed + "recycle air" button as well. the longer this is on for, the dryer the interior will get.

Heh, I was just going to post the opposite -- that leaving the outside air closed off too long always causes my car to fog up inside.

sounds like you have too much moisture inside the car. check your car for weatherstripping damage.

Yep. And make sure you aren't holding a lot of water on the floor somewhere, in the carpets or wherever. Check everywhere, not just the driver's floor.

[Majin]

Originally Posted by wdb

Heh, I was just going to post the opposite -- that leaving the outside air closed off too long always causes my car to fog up inside.

sorry wdb - i meant to add that this is what he should do to dry up the inside of the car with the car sitting by itself.

if the car is going to dry itself out, the best settings would be to use the AC, max heat, max fan, and recycle; this way, the AC keeps recycling the air that it has partially dried already and it will wick more moisture from the inside of the car. again, this is with the car running and no one in it.

if you are in the car, and use the AC, i also use the outside air.

[WC LATHE WERKS]

I had some moisture all inside my car 2 days ago when it was raining alot. my central cluster had some condensation all over it, so the AC on full was used to evap everything