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Old 06-26-2007, 08:42 AM   #1
StikiGreenZ
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Humid smell?

Lately I've noticed a humid damp stale air comes out of my vents when I turn off the air conditioning. It always happens and lasts for about 5-10 minutes... Is is the cabin filter that needs replacing? HELP!
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Old 06-26-2007, 10:07 AM   #2
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do you switch off your car when the aircon is still running. if so then this is normal after a while. This happens when the air conn damp cool air remains in the vent piping which causes a breeding ground for bacteria. For the next week switch off the airconn 2-3 mins before you get to your destination to kill off the bacteria.
Also you can buy antibacteria spray (maybe CT or walmart) thats used to spray both in the inlet of the cabin air supply and also down all the vents (you can even spray the cabin filter before you buy a new one - if it's still clean)
Do you run the aircon for small periods during the winter? most people don't know but it is a good thing. it stops the seals from drying out.
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Old 06-26-2007, 10:32 AM   #3
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I always shut off the AC about 5 minutes before I get to wherever I'm going. Where should I spray the anti-bacterial spray?
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Old 06-26-2007, 10:48 AM   #4
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The best way if you are going to spray is remove the micro airfilter lots of work and spray it into there where the air blows then put back in the micro airfilter.
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Old 06-26-2007, 11:02 AM   #5
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Where is this microfilter located?
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Old 06-26-2007, 01:42 PM   #6
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actually, the micro filter is easy to replace..pop your hood, and near the windshield you will see a plastic cover that has 3 plastic nobs on it. pop that off and the filter is right there.
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Old 06-26-2007, 07:16 PM   #7
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Make sure you buy the charcoal activated micronfilter, it's much better than the plain paper one.
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Old 06-27-2007, 08:52 AM   #8
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Ok I have no problems replacing the filter. One thing I don't understand is why the smell only comes for the 5-10 minutes after the AC has been shut off and you're driving. Why doesn't the humid smell come while regular vents are on if the AC hadn't been turned on?
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Old 06-27-2007, 04:17 PM   #9
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Quote:
Originally Posted by StikiGreenZ
Ok I have no problems replacing the filter. One thing I don't understand is why the smell only comes for the 5-10 minutes after the AC has been shut off and you're driving. Why doesn't the humid smell come while regular vents are on if the AC hadn't been turned on?
The coles notes version of the way AC works, is that it removes the moisture (humidity) from the air and at the same time cools the air down. So, when it removes the moisture from the air, this "water" has to go somewhere ... condenses in your vents and lines. You ever see cars in the summer dripping of water? That's from the air con condensation.

So, moisture buildup in dark areas, such as your vents will create this damp stench. After a few minutes, it goes away... obviously, as you have noticed.
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Old 06-28-2007, 08:53 AM   #10
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Thanks guys!
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