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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 05-31-2005, 01:32 PM   #1 (permalink)
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Hi All,

Everytime I turn off my A/C some really bad smell comes out of the vents for a while. It kinda smells sour and if I turn the A/C back on it will be ok. Any ideas?

Jiggs
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Old 05-31-2005, 02:07 PM   #2 (permalink)
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I'm also experiencing the same thing.........it happens when the A/c is off and the air recirculation is also off. I haven't had the time to contact the dealership......but any idea to get rid of the smell would help.
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Old 05-31-2005, 03:19 PM   #3 (permalink)
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here is what i did or an air conditioning specailist will do for a small fortune


i took out my air con filter panel...(panel nder the windscreen wipers)
turned on a/c at lowest temp,,and highest fan setting
sprayed some disinfectant into the aperture and therefore killed all known germs DEAD!!!!!

i used an anti bacterial spray from the supermarket


but the air con specailists willl tell you theres is special.......

also you should use the a/c once a week and full power once a week as well.
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Old 05-31-2005, 03:48 PM   #4 (permalink)
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But what's the cause of this?
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Old 05-31-2005, 04:34 PM   #5 (permalink)
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same as in any other air con unit...

bacteria..

have you ever heard of legionaire's disease????

commonly found in office air conditioning units....caused by hot/cold/hot/cold/hot/cold etc etc non cleaning of unit and constant temp change

not saying the cars get the disease but it is bacteria that smells


http://www.buypartsby.co.uk/air-con-cleaner.php

look here
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Old 05-31-2005, 05:26 PM   #6 (permalink)
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mositure collects in there, the solution described quite radical but perhaps necessary.

i give the ac vents full heat from time to time, to dry everything. also, i hear that recirculation is bad, fresh air good.

the stinking computer also turns on the recirculation on its own, to get the temp lower faster. someone has desribed a way to prevent this, moderators???
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Old 06-02-2005, 03:16 PM   #7 (permalink)
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Quote:
Originally posted by jiggs@May 31 2005, 12:32 PM
Hi All,

Everytime I turn off my A/C some really bad smell comes out of the vents for a while. It kinda smells sour and if I turn the A/C back on it will be ok. Any ideas?

Jiggs
[snapback]349035[/snapback]

Just replace you cabin filter, it's not that much money to replace and the smell will be gone and you'll have a nice clean filter.
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Old 06-02-2005, 04:44 PM   #8 (permalink)
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Quote:
Originally posted by djm1k0+Jun 2 2005, 01:16 PM--><div class='quotetop'>QUOTE(djm1k0 @ Jun 2 2005, 01:16 PM)</div><div class='quotemain'><!--QuoteBegin-jiggs@May 31 2005, 12:32 PM
Hi All,

Everytime I turn off my A/C some really bad smell comes out of the vents for a while. It kinda smells sour and if I turn the A/C back on it will be ok. Any ideas?

Jiggs
[snapback]349035[/snapback]

Just replace you cabin filter, it's not that much money to replace and the smell will be gone and you'll have a nice clean filter.
[snapback]349586[/snapback]
[/b][/quote]
That doesnt work... Anyway, what I did was get some Lysol and spray it into the air intakes for the AC system. It got rid of it for about 2 months, the smell is coming back. So I am gonna try some stronger stuff next time. Probably gonna try walmart or something, I went to a few autoparts stores and none of them had any A/C cleaners or anything. So anyone have any suggestions? The lysol works but it's not strong enough. So anyone have any suggestions to whee I might be able to get one?
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Old 06-03-2005, 01:10 AM   #9 (permalink)
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i just used a anti bacterial kitchen spray,,,in the UK it was a domestos spray,,,but it is harmless to plastics etc and just a germ killer.......
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