foggy windows a nightmare

cali_gal · Post by **cali_gal** » October 27th, 2007, 8:42 am

hi all, i have noticed in wet weather that my window gets all foggy inside, and nothing will get rid of it except running the ac at full tilt. this is NOT acceptable with winter around the corner. What can i do??

Bochek · Post by **Bochek** » October 27th, 2007, 11:12 am

run the heat at full tilt, make sure you have the air set to come from outside the car, not to recirculate.

cali_gal · Post by **cali_gal** » October 27th, 2007, 11:39 am

I have tried that and it only seems to get worse. is there a product i can buy to put on my windsheild?

Tunes67 · Post by **Tunes67** » October 27th, 2007, 11:53 am

There is a product called FogX (I think thats the name) Its made by the same people who developed RainX. I havent used it.. only seen it in the auto parts stores. But if you have your air set to "Fresh" and not recirculate.. and its still fogging up badly.. there maybe other issues going on in your car. Check your coolant level and make sure it isnt low. If it is low.. get your heater core checked as it might have a pin hole leak in it steaming hot coolant under your dash.

Tunes67

SuperK · Post by **SuperK** » October 27th, 2007, 11:58 am

Keep your sunroof cracked open. just enough for the inside air to be able to circulate out

in conjunction with heat, this will be the most effective way I've found
and you will stay comfortable and not wet.

cali_gal · Post by **cali_gal** » October 27th, 2007, 12:55 pm

Cool! thanks for the advice guys. :D

atlantamx3 · Post by **atlantamx3** » October 27th, 2007, 1:43 pm

Run your AC Compressor, but have the temp stting on Heat.

The AC acts as a dehumidifier and will ELIMINATE the fog. No cold will be coming out since you have the heat on.

Seriously, works every time.

94mx3precidia · Post by **94mx3precidia** » October 27th, 2007, 3:04 pm

Tunes67 wrote: There is a product called FogX (I think thats the name) Its made by the same people who developed RainX.

I second that. They sell it in the ghas stations any what not. I have not yet used it but ive head some really good product reviews.

Raven95150 · Post by **Raven95150** » October 28th, 2007, 5:08 pm

Not sure if this is the case on MX-3s since my A/C doesn't work but most cars automatically run the A/C when you put it on defrost.

fowljesse · Post by **fowljesse** » October 29th, 2007, 1:46 am

I don't like my car to be humid, so I bought something called "Damprid" at Home depot. It works great!
It looks like kitty litter, and sucks water from the air and traps it. You just have to put it in a container that won't tip over. It keeps your interior very fresh! It's made for ridding basements of moisture.

Post by **Mooneggs** » October 29th, 2007, 9:35 am

atlantamx3 wrote:Run your AC Compressor, but have the temp stting on Heat.

The AC acts as a dehumidifier and will ELIMINATE the fog. No cold will be coming out since you have the heat on.

yep this will work without blowing cold air and you will still have the heat. use the "defrost/air to your feet" icon setting on the HVAC panel, and make sure your a/c switch is on.

Volones · Post by **Volones** » October 29th, 2007, 10:01 am

I have the same problem since my replacement windshield has a small leak. I actually came out of work one day to see my car totally fogged up inside.

I was able to fix it by leaving the windows cracked open (in a safe place obviously) during a really hot day, and since here in CO, our humidity is so low it effectively dehumidified the car and solved the problem.

Good luck
Vol

lowflyinmx3 · Post by **lowflyinmx3** » October 29th, 2007, 12:02 pm

my old mx was salvaged and the window wasn't put in correctly and it used to leak. it wasn't that bad until winter came and i had to scrape the INSIDE of my windows. It used to always make me laugh.

Yoda · Post by **Yoda** » October 29th, 2007, 12:50 pm

atlantamx3 wrote:Run your AC Compressor, but have the temp stting on Heat.

The AC acts as a dehumidifier and will ELIMINATE the fog. No cold will be coming out since you have the heat on.

Seriously, works every time.

All the newer cars on the road these days do this automatically right from the factory where the A/C switches in the defrost mode.

Yoda · Post by **Yoda** » October 29th, 2007, 12:59 pm

94mx3precidia wrote:
Tunes67 wrote: There is a product called FogX (I think thats the name) Its made by the same people who developed RainX.
I second that. They sell it in the ghas stations any what not. I have not yet used it but ive head some really good product reviews.

You wouldn't want to use it anywhere where there is a chance of frost or colder. The problem is that this stuff adsorbs moisture and freezes and you end up with more frost on the inside of the window than you do on the outside and the worst part is the freezing point is changed so that it takes longer to melt. It is a really pain to the rear end to wash off too and usually requires a solvent to strip.