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Thread: Air filter replacing query

  1. #1
    Join Date
    Dec 2007
    Location
    South East Melbourne
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    39

    Air filter replacing query

    Hi Guys,
    Today I just bought a new VW air filter, as trying to improve the fuel consumptions. After it replaced, I can feel quicker responce in acceleration and even in engine speedometer increased from normal 800 to 850 rpm. Is this normal, as clean air filter allowing more fresh air into engine? Or I need a computer hooked up to check the engine status, just in case in-correct installation?
    Thanks.

    Tao

  2. #2
    Join Date
    Aug 2007
    Location
    Melbourne
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    478
    Get the throttle body adapties reset if your worried. other than that i wouldnt worry.

  3. #3
    Join Date
    Aug 2007
    Location
    Perth, Australia
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    1,699
    Users Country Flag
    your old filter nust have been very dirty (assuming the new filter is a standard paper one). I wouldnt worry about it. If you take the filter out completely it would go even better, but dont do it The car breathes better with the new filter
    1991 BMW 318is RED E30

  4. #4
    Join Date
    Mar 2008
    Location
    Canberra
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    14
    Funny enough I have done a couple of runs without the filter in.
    You can hear more air been sucked in and the stock diverter valve is way louder.

    A new filter will definetely give you a better response - I would suggest the K&N panel air filter - lifetime warranty as well.

  5. #5
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    If you go for K&N make sure its far from the MAF sensor. I had an aftermarket POD for about 2 months and it blew the MAF. Apperently it doesn't like the oil that is on it
    1991 BMW 318is RED E30

  6. #6
    Join Date
    Mar 2008
    Location
    Canberra
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    14
    Well.. the aftermarket K&n panel filter just sits in the stock air box. So either way, its in the same position as the stock panel filter.

  7. #7
    Join Date
    Dec 2007
    Location
    South East Melbourne
    Posts
    39
    Thread Starter
    ok guys,
    thanks for the input.
    I will make sure next time when I replace the air filter, use a K&N instead of the VW one. It seems nothing to worry about. My concern came from the fussy filter box, not as easy &simple to install as my camry clips install. I just worried error installation may cause problem rather than improve the performance.
    I will keep an eye on the fuel consumption anyway, thanks guys for the support again.

    Cheers,
    tao

  8. #8
    Join Date
    Dec 2007
    Location
    Melbourne
    Posts
    30
    Dont use air filters that use oil. I did and it blew my MAF. Go with the stock units.
    *** It's Only a Car ***

  9. #9
    Join Date
    Oct 2007
    Location
    Adelaide
    Posts
    362
    Quote Originally Posted by nkoulban View Post
    Dont use air filters that use oil. I did and it blew my MAF. Go with the stock units.
    is this due to over oiling the filter element?

    getting my filter replaced in my major service next week and was going to get a K&N, but now im not so sure....
    1999 MK4 GTi 1.8T - Custom Code Stg 1, ECS Stg 1, 14lb Fly, 18" A8's
    ''Jap cars pull the G-Forces... Euro cars pull the G-Strings...''

  10. #10
    Join Date
    May 2005
    Location
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    The oil in the filter can contaminate the element in the MAF. They can still fail with a paper filter so it's just more likely with an aftermarket filter. I have fitted a green cotton one to my Audi and if the MAF dies, I'll fit a new one.

    Gavin

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