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Thread: Musty cabin...Is there a drain clogged or a filter that needs to be replaced?

  1. #1
    SP23 user

    Mazda3 SP23

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    Musty cabin...Is there a drain clogged or a filter that needs to be replaced?

    2016 Mazda MX5; help me locate the drain or filter- or should I take to dealer?
    Thought I would ask here if it is easy then I know how to do it again.
    Cheers,
    Ted in Cincinnati - ceramic 16
    Ted Nagel
    Cincinnati, OH

  2. #2
    Registered Member

    2014 CX-5 GT

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    Drain filter? Confusing your car and boat?
    2014 Silver Mazda CX-5 GT
    2017 Eternal Blue Mazda 3 Touring
    2018 Machine Grey Mazda CX-9 Signature



  3. #3
    Out there... chiefmg's Avatar

    '81 RX-7 GS, '00 Miata SE, '06 RX-8 GT (wife's), '15 CX-5 GT AWD

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    Quote Originally Posted by Wildcat65 View Post
    2016 Mazda MX5; help me locate the drain or filter- or should I take to dealer?
    Thought I would ask here if it is easy then I know how to do it again.
    Cheers,
    Ted in Cincinnati - ceramic 16
    A little research shows there is no cabin air filter on an ND, but something called a dust-free filter. Apparently it is a pain to get to. You should also have several drains coming off the top. On NBs there is one at the front of each door, and one just behind the seats where the rain rail drains into. Not sure exactly where they are on the ND but you should be able to find them.

    You could also try removing your HVAC fan and see if any rodents have piled stuff in it. That will cause mustiness too.

  4. #4
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    2019 Mazda MX-5 Miata Sport

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    Are you referring to a smell or dampness?

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