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How to clean/replace battery fan filter

Discussion in 'Gen III Prius Care, Maintenance & Troubleshooting' started by GrumpyCabbie, Aug 4, 2010.

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  1. GrumpyCabbie

    GrumpyCabbie Senior Member

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    Was cleaning my car yesterday and noticed what looked like fluff through the battery vent in the rear seat.

    How do I clean inside here? Is it an easy diy job? Do you open it from the inside of the car or tackle it from the boot/trunk?
  2. dogfriend

    dogfriend Human - Animal Hybrid

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  3. GrumpyCabbie

    GrumpyCabbie Senior Member

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    I should have said is there a way specific to the 2010 Prius as this has a filter (the 2003-2009 version does).
  4. dogfriend

    dogfriend Human - Animal Hybrid

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    Maybe you will be the first. :madgrin:
  5. Mendel Leisk

    Mendel Leisk Senior Member

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    Cover with a leg section of panty hose?

    [​IMG]

    Just a trial, will take it off for now. Kind of wondering how much a fine mesh like this is reducing air flow. Perhaps someone with engineering background could comment?

    Also, my wife's comment: more coordinated color might be in order ;)
  6. xs650

    xs650 Senior Member

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    I can't give you a number, but a lot. Prolly by 50% or more.

    Hold your hand a few inches from your mouth and blow on it. Note how it feels. Hold your hand on the other side of a layer of panty hose 1/2 way between your mouth and hand at the same total distance and blow through them onto your hand. The reduction in airflow is remarkable.

    Whether that amount of restriction is a problem or not depends on how much reserve capacity Toyota built into the cooling fan.
    1 person likes this.
  7. Mendel Leisk

    Mendel Leisk Senior Member

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    That was my hunch, just trying to breath through it. Hmm, ok, thanks.
  8. Mendel Leisk

    Mendel Leisk Senior Member

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    Just rummaging a bit: I've found some vacuum motor filter material, 1/8" thick, fairly open, looks like a miniature furnace filter. Seems very low resistance to flow. Popped it in behind the grill, will see how it goes.