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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 09-10-2003, 09:26 PM   #1
mbixler
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Window fog

I was just wondering if anyone else had this problem. It only happens at night. When I start to drive my windows fog up terrible. It is from the outside too. Does anyone have any suggestions on how to get rid of this? I clean my car constantly and also live in PA where the humidity is high. Thanks!
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Old 09-10-2003, 09:45 PM   #2
quackman
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hmm... the only fog I really get on my windows is the place near where the AC comes out of the vents
if that's what you're talking about, then point the vents away from the windows.
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Old 09-10-2003, 09:48 PM   #3
mbixler
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I am talking about the front window. If i use either the AC or heat is goes away in about 2 mins but it should not take that long...do you think? Of if i open my windows and drive it usually goes away. THANKS!
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Old 09-10-2003, 10:31 PM   #4
robj213
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Uhm if its on the outside just use your windshield wiper..
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Old 09-10-2003, 10:39 PM   #5
03-330Ci
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I know what you mean, I'm in Houston, but it happens to me in the morning. A foggy glaze comes over the outside of the windows and won't go away for about 5 min. I'd like to know a cure also.
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Old 09-10-2003, 11:02 PM   #6
daz
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use rain-x same thing they use on jets
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Old 09-10-2003, 11:47 PM   #7
mase
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rainx is good stuff. i rarely use my wipers now.
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Old 09-10-2003, 11:50 PM   #8
BmWm3PoWer03
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yea it happens when the weather is muggy, and of course when my girl decides that she wants to bang me in the car...
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Old 12-08-2004, 12:42 AM   #9
BET325
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cant stop the windows from fogging up, pls help?

i having a heard time keeping the windows clear, they just keep foging up!!!
i turn on the defrost but it just gets to hot in the car!!!
am i adjusting the the defroster/climate control wrong?
any suggestions?
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Old 12-08-2004, 12:44 AM   #10
surferdude013
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rain-x makes anti fog. not sure on how well it works but you could always try it out. its only $4
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Old 12-08-2004, 12:48 AM   #11
monkeyjuice5150
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open up the back window.. thats what i do.. or leave the sunroof open to mode 1
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Old 12-08-2004, 12:51 AM   #12
BET325
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it rains here in washington, i hat the water to come in but ill try with the back windows open.
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Old 12-08-2004, 01:04 AM   #13
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First of all, make sure the air conditioning is on. This will cool, dehumidify, and if needed, rewarm the air (depending on temperature setting) before it is passed through the vents, preventing further fogging up.
When you turn on the defroster, make sure that the rotary dial on your vents is dialed on the white line. This will allow your car to adjust the temperature of the air by itself. If these things don't work, try out the product that surferdude013 is suggesting.
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Old 12-08-2004, 01:05 AM   #14
04ragtop
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Make sure you push the A/C button on. It won't necessarily cool the vehicle (unless it is hot outside) but it will dehumidify the air and therefore defog the windows.

Never a problem with window fogging in my car.
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Old 12-08-2004, 01:07 AM   #15
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when its raining i keep the sunroof tilted. it also helps to turn on the A/C button and you can keep the little temp control on the vents in the middle. That helps as well.
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Old 01-08-2007, 01:21 AM   #16
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hate to bring this back to life, but I too am having a terrible issue with the windows getting fogged up (mostly at night) It is getting really annoying and if anyone has any remedies i would greatly appreciate it (keep in mind the fog is on the inside of the windshield, not the outside)
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Old 01-08-2007, 01:39 AM   #17
terry1122
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go to the dealer and buy the bmw window spray. it has the ability to prevent interior fogging like it said on the lable. it works pretty well for me. hope this helps
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Old 01-08-2007, 03:13 AM   #18
bimmer jon
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when i was at the dealer, they were telling me that if your windows fog up on the inside when you leave your car overnight or after moist days, it means you have a moisture leak inside your car. fogging on the outside is normal but on the inside, he said it means you have a moisture/water leak somewhere inside. common culprit, passenger door moisture shield/floor area
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Old 12-27-2008, 03:24 PM   #19
kbracken
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Stupid Windshield Foggin Up!!

I don't know if this is just a Bimmer thing or if anyone has this problem as well, but my my stupid windshield fogs up like crazy. Everytime it rains hard it fogs up so bad that you cant even see. Some times I have to run the defroster (which is normal), but sometimes I have to kick the A/C on and try that. Ocasionally one or the other does help but only for a short period of time (2-5 mins) before it fogs up again and I got to keep bouncing back from defrost to the A/C. Other times neither one works to clear it up and that can be a pain in the a$$ while you are driving down the road and then cant see anything at all. Is there something wrong with my car that is causing this? Or is this just something I have to deal with? Does anyone have any suggestions on fixing this issue???? Please Help!
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Old 12-27-2008, 04:54 PM   #20
kbracken
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Anyone????
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