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Air filters 900

posted by  someone claiming to be 95 960 on  Sat May 22 12:53 CST 2004 [RELATED]

I seem to have two air filters on my 95 960. One is the flat standard on the drivers side front. The second is a round cylinder type, on the passengers side, and has a breather pipe on it. What is the second filter for? At what interval should it be changed? Thanks guys, you're the best!








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    Air filters 900

    posted by  brownboy on  Sat May 22 14:27 CST 2004
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    last visit: Fri Jan 1 14:31 CST 2010
    [RELATED]

    Not a filter. Its the secondary air pump. It pumps air into the catalytic converter when it needs extra oxygen to work properly (on start-up or in certain instances when you come to a stop). This is the noise you hear on start-up that sounds like a muffled siren. It doesn't have a filter in it.

    Mike
    --
    Mike Brown Greenville, NC 1996 965 105K 1994 940 135K 1986 244 137K








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      Air filters 900

      posted by  someone claiming to be 95 960 on  Sun May 23 13:29 CST 2004 [RELATED]

      Thanks for the reply. There is a fitting toward the wheen on the air pump. When this is removed, there is a paper, accordian, round cardboard filter there, which can be removed. If it is the pump, there is a filter on it. Anybody know the cost of the filter and the change frequency? Thanks, a pile guys








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        Air filters 900

        uid 19's pic
        posted by  jbowers on  Mon May 24 03:09 CST 2004
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        last visit: Sun Jan 22 13:49 CST 2012
        [RELATED]

        Interesting!!!!!!!!!!!!

        I've never seen any mention of that filter is the owner's manual or my shop manuals. I'll have to take the pipe off mine and see if there is one on my car.
        --
        '96 965 with 16' wheels at 114K. Had '85 745 Turbo Diesel for 200K.








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          Air filters 900

          posted by  someone claiming to be 95 960 on  Mon May 24 03:54 CST 2004 [RELATED]

          Thanks for the response. The filter is visible by twisting the housing. The approx 6 inch diameter cap on the filter housing near the passenger side fender twists and comes off. Then the paper filter is clearly visible.








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            Air filters 900

            posted by  david hunter on  Mon May 24 11:50 CST 2004
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            last visit: Mon Jun 30 22:10 CST 2014
            [RELATED]

            If there is a filter there at all I would just leave it alone. Even if totally plugged (and I doubt that) it will make absolutely no difference to the running or performance of the car. The sole purpose of that pump (it only runs for a minute or two shortly after a cold start) is to pump a bit of extra air into the manifold and thereby help the cat heat up a bit faster. It's benefit is inconsquential. It's just one of those keep the environmentalist whackos happy things.
            --
            David Hunter







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