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Nasty smell in ventilation shafts

ChanandlerBong May 25, 2020

  1. ChanandlerBong

    ChanandlerBong Registered User

    Hi. I drive Audi A1 2011 and there has been a nasty smell coming out of my ventilation lately. It smells as if some farted in an damp rag. It is nasty. It doesn't happen always though but mostly when I accelerate and drive for about 10 minutes with a constant speed. It is disgusting. I looked under the hood but I don't see any leaks and all the fluids are there. Do you have any ideas?
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  3. Sibmets

    Sibmets Registered User

    Hi, did You tried switching A/C on and off and checking if maybe the smell is only present when A/C is on? Because often smells is from bacteria in A/C lines if it wasn't used during winter season.

    Audi A4 B9 3.0 TDi quattro 200 kw

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