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E39 Interior Ventilation Microfilter

Discussion in 'E39 (1997-2003)' started by jcometa, May 11, 2008.

    jcometa guest

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    What side is up regarding the two interior ventilation microfilters on either side of the engine compartment of the E39? There's an arrow for "AIR" but I don't know if it should be pointing up or down. I have the activated carbon type.

    Thanks for your help.

    morea3ic guest

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    Welcome!

    .
    Welcome to the forum.

    I don't know the answer to your question, but if no one here knows - I'd call your dealer parts guy.

    Best.

    jcometa guest

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    Well of course I could do that, but I thought I might get a quick reply today (Sunday) from this forum while I had the hood up.
    • Member

    BMWCCA1

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    Arrow indicates the direction of air flow which, on your car, is through the hood vents then into the car's HVAC system. So, for you, that would be "arrow down".

    jcometa guest

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    Excellent. Thanks so much!

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