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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 07-03-2012, 07:03 PM
innovation innovation is offline
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Heater emits a strange smell

First of all i would like to Introduce myself. I recently purchased a 2006 750Li I am absolutely in love with the car so far. I have been lurking on the boards for a few months but this is my first time posting. I noticed when i first start my car and turn the heater or a/c on the car emits a strange smell, for lack of a better word it smells like "piss". Its stonger when the heater is on and stays on for a long time. When the a/c is on i only smell it when i first turn it on and then its gone. Any ideas on what this could be? I appreciate any help on this matter and look forward to being able to contribute in the near future to the forums.
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  #2  
Old 07-03-2012, 07:10 PM
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1bad540 1bad540 is offline
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If it smells like a gym sock after the ac is on, sadly its kinda normal. Make sure you have a fresh carbon csbin filter in. U xan also try to shoot some lysol disinfectant down the vents and into the opening under the cabin filter
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  #3  
Old 07-03-2012, 07:12 PM
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wjjklj wjjklj is offline
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My car smelled when I turned on the Ac for a little then would go away. I read about this Klima-cleaner that you spray in the center vent that foams and cleans the bacteria from the ducts and the evaporator. I did it tonight. The hvac smells much better and has a light pleasant scent now. It is available on Amazon.com for about $16.00. I would give it a try.
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  #4  
Old 07-03-2012, 08:10 PM
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hd750Li hd750Li is offline
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Just turn off that air circulation button. That would help cut out the piss odor immediately.

FYI, this is an infamous BMW problem with the evaporator. Almost every BMW vehicles including E65/E66 are affected by the poor design. Read this article for more info: http://www.bmwtips.com/tipsntricks/AC/smell.htm

Last edited by hd750Li; 07-03-2012 at 08:15 PM.
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  #5  
Old 07-03-2012, 08:36 PM
jenkx jenkx is offline
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Quote:
Originally Posted by wjjklj View Post
My car smelled when I turned on the Ac for a little then would go away. I read about this Klima-cleaner that you spray in the center vent that foams and cleans the bacteria from the ducts and the evaporator. I did it tonight. The hvac smells much better and has a light pleasant scent now. It is available on Amazon.com for about $16.00. I would give it a try.
So I guess you weren't afraid using the Klima-Cleaner would harm something after spraying it into the vents. I may try it.
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  #6  
Old 07-03-2012, 09:16 PM
innovation innovation is offline
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Thanks for all the replies. I think i will try the spray idea and see if it helps
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  #7  
Old 07-04-2012, 08:22 AM
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wjjklj wjjklj is offline
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Quote:
Originally Posted by jenkx View Post
So I guess you weren't afraid using the Klima-Cleaner would harm something after spraying it into the vents. I may try it.
No I wasnt really afraid. The hose included is about 2 feet long and I was able to guide it into the duct by shining a flashlight into the center vent. I put about half a can down each center vent. Nothing dripped out the bottom into the foot area either. I let it clean for about 25 minutes and then turned on the max Ac for about a minute afterwards to let it dry. It smells really nice now. The Kilma product is made in Germany.
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  #8  
Old 07-04-2012, 02:11 PM
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II Kings 9:20 II Kings 9:20 is offline
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I hear that Klima is great but if your cabin filter is filthy (and it probably is) then that old nasty filter is the stinky sock and spray will only give temporary relief. If you have not changed the filter then assume that it has never been done.
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  #9  
Old 07-04-2012, 07:22 PM
innovation innovation is offline
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Actually I will order a filter tomorrow and the spray. Hopefully this will help. Thanks for all the advice

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  #10  
Old 07-04-2012, 08:09 PM
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wjjklj wjjklj is offline
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Originally Posted by innovation View Post
Actually I will order a filter tomorrow and the spray. Hopefully this will help. Thanks for all the advice

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Get the charcoal filter not the regular one.
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  #11  
Old 07-04-2012, 08:17 PM
innovation innovation is offline
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Any advice on where to order from or specific brand?

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  #12  
Old 07-04-2012, 08:29 PM
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wjjklj wjjklj is offline
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Bosch is a good filter but will cost you. Just check eBay or fcpeuro. 30 minutes left on fcpeuro's free shipping and 10% off. You need 2 filters and they install underneath the black covers under the hood by the windshield.
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