Question about 1999 Audi A4

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Air Conditioning Filtration

Hi,

I just bought an 1999 Audi A4 for my wife and whenever we have the a/c on and the windows closed, we can still smell everything from outside - from exhaust smoke of other vehicles, etc. Does anyone know what's causing this?

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Here you can see how to change the cabin filter on the 1999 A4.
The text is in Portuguese but the pictures can give you an idea.

http://blog.a4.blog.br/2009/07/trocando-o-filtro-de-ar-da-cabine-do-a4.html

Posted on Aug 30, 2009

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There is a filter that is for that... it is called a cabin air filter, I am not positive of the location for your make but they are usually located near the passenger foot area under dash.

Posted on Aug 24, 2008

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