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Thread: 520i auto n reg

  1. #1
    Join Date
    Mar 2006
    Location
    Derbyshire, UK
    Posts
    872

    Default 520i auto n reg

    I assume you've checked for all the usual suspects, i.e., clogged fuel filter, intake air leaks, bad spark plugs and/or coils, low compression, clogged injectors, wonky transmission, VANOS problems, dirty air filter, etc.?

    Also, a 520i is going to be naturally slower than an equivalent 525i -- the extra displacement does make a difference.

    1997 535i V8
    5spd, OBC, A/C, cruise, BMW phone, factory M-Tech wheel & suspension, 18" Alpinas

  2. #2

    Default 520i auto n reg

    Hi just got 520i auto 24v 1995 for my bro its very slow all through the range. my dads 525i auto 24v k reg 1993 goes like the wind. i do know my way round cars maybe its the air mass meter as we had this with a 7 series. might try my dads air mass if its the same number on it. like to here what you guys think.


    best regards paul

  3. #3

    Default

    Hi dave thanks for the reply no iv not looked at any thing yet. as we only got the on sunday i will look at all those things. but when you say vanos probiems what do you mean. it does have a bit of a rattle when first starting at the front of the engine . which i think is a bit of wear on the vanos. i know what you mean about the 525 being faster but the 520 is just so slow i think some thing must be wrong some where

    regards paul

  4. #4
    Join Date
    Dec 2004
    Location
    Sydney, Australia
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    4,374

    Default

    Look for obv signs of some pov hondaengeneeerz messin' wid da vanos and consider getting a top cover gasket kit before u start pulling her down. If you need to fix the vanos, look into what you have to do, I don't think it's easy but at least (since u you are in the UK) you can button it up every time it rains or gets too damned cold to work on.

    Might be worth buying a 2.5 M50, electrics, computer+gbox from a wrecked 525 dep on what you can find and do... g.luck

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  5. #5
    Join Date
    Feb 2006
    Location
    Oldham, England
    Posts
    3,078

    Default

    Quote Originally Posted by genphreak
    Look for obv signs of some pov hondaengeneeerz messin' wid da vanos and consider getting a top cover gasket kit before u start pulling her down. If you need to fix the vanos, look into what you have to do, I don't think it's easy but at least (since u you are in the UK) you can button it up every time it rains or gets too damned cold to work on.

    Might be worth buying a 2.5 M50, electrics, computer+gbox from a wrecked 525 dep on what you can find and do... g.luck
    Wow! You come from Bolton?

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