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thrumming noise

  1. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi there. I am a new forum member but a BMW veteran (on my 5th). I have recently acquired a 330Ci Convertible '53 plate with 52k genuine miles. At speeds above 40mph a pulsating noise occurs, rather like that awful noise you get when you drive over concreted motorways. It isn't induction and I...