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    Rattling

    I have an 87 iS and whenever it's under acceleration it makes this rattling noise coming from below, and i think from the rear. sounds like something metal is being rattled or scraped against something else metal.....but thats all i know. and when it's idling it makes the same noise but it is very faint. any ideas/help?

    #2
    I know it's stupid, but check your wheel bolts.
    Then start with the guibo and center support bearing.
    Then drive shaft.

    That is usually the culprit.

    Here are some examples of bad Guibo's:



    And here is a bad CSB:



    Good luck and use the search feature.

    1991 325iS turbo

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      #3
      thanks! ill try it, and the search feature more...

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