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-   -   windows fogging at idle in rain - with A/C ON (http://www.focusfanatics.com/forum/showthread.php?t=308923)

AtlantaDan 02-11-2013 12:51 PM

windows fogging at idle in rain - with A/C ON
 
Just as the title states - when sitting at a light with the A/C on, windows up, and its raining, the windows will fog up like mad. Even hitting the defroster doesn't work as well as one would think. Once I get moving, they clear out - but it still pisses me off, and it is dangerous at night.

Anyone have the same issue?

HoneyBadger 02-11-2013 12:55 PM

Quote:

Originally Posted by AtlantaDan (Post 4582846)
Just as the title states - when sitting at a light with the A/C on, windows up, and its raining, the windows will fog up like mad. Even hitting the defroster doesn't work as well as one would think. Once I get moving, they clear out - but it still pisses me off, and it is dangerous at night.

Anyone have the same issue?

When was the last time you cleaned the inside of your windows? Dust tends to hold a lot of moisture creating the fog build up quicker than with clean windows.

silenthill 02-11-2013 03:08 PM

I'm convinced it's something to do with the automatic climate control. My car does this from time to time, too. The a/c is shutting off for some reason. There's a thread on here about humid air bursts from the a/c...it's the same problem.

AtlantaDan 02-11-2013 03:17 PM

Quote:

Originally Posted by HoneyBadger (Post 4582851)
When was the last time you cleaned the inside of your windows? Dust tends to hold a lot of moisture creating the fog build up quicker than with clean windows.

Um, while I appreciate your taking the time to reply....

http://www.examiner.com/sites/defaul...nteresting.JPG

Quote:

Originally Posted by silenthill (Post 4583037)
I'm convinced it's something to do with the automatic climate control. My car does this from time to time, too. The a/c is shutting off for some reason. There's a thread on here about humid air bursts from the a/c...it's the same problem.

Yeah, I searched a bit before I posted here and noticed the 'humid smell' questions too. I also suspect it has something to do with emissions. It would make some oddball 'greenwash' sense to have the compressor kick-off at idle to conserve fuel, but at the expense of safety? It's pretty stupid if you ask me....

1slofofo 02-11-2013 03:47 PM

Try using only the defroster, defroster won't clear as fast when the a/c was just going.

thejordan 02-11-2013 03:50 PM

it's probably switching from vent to recirculation, when you turn on the defrost, a/c kicks on and may kick on the recirc. i think vent is what you want.

BetaDnB 02-11-2013 04:20 PM

I have the same problem and have all along.

Quote:

Originally Posted by adamdv5 (Post 4583088)
Try using only the defroster, defroster won't clear as fast when the a/c was just going.

Actually that's not true. A/C blows dry air to help remove humidity. Most vehicles now actually route the defrost air through the air conditioner and that's not even new.

silenthill 02-11-2013 05:15 PM

Quote:

Originally Posted by BetaDnB (Post 4583131)
I have the same problem and have all along.



Actually that's not true. A/C blows dry air to help remove humidity. Most vehicles now actually route the defrost air through the air conditioner and that's not even new.

Oh, there goes my auto climate control theory!

I complained once to my dealer, and of course, "could not duplicate" was the response. It seems like, on my car, this occurs when the car isn't under much load--i.e. idling at a traffic light or I've had the a/c cut off while cruising at 65. Have you noticed any patterns?

c5karl 02-11-2013 05:26 PM

Make sure you have the recirc button turned off. In any car, this can cause fogged windows when the weather is damp.

From the owner's manual:

Quote:

Note: Prolonged use of recirculated air may cause windows to fog up.

...

Note: To reduce humidity build-up inside your vehicle, do not drive with ... recirculated air always switched on.

IngotFoFo 02-11-2013 05:53 PM

I have issues with my drivers window fogging up way to easily, and staying fogged up.
Usually it happens when it is rainy out but thats not the only time.
I never use recirculated air, and it usually happens when the defrosters are on. I usually have to open the window which only slightly helps and makes me cold in the process. Sometimes turning off the defrosters helps, sometimes it doesnt.
Ive never seen a vehicle fog up like this one.


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