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  1. 2000 328i e46 idles, grunts in neutral on cold engine

    BMW 3 Series Forum - Technical Talk on the BMW E46
    when i start my car in the morning on a cold engine and i am stopped at the lights. The car sometimes has a mind of its owns and grunts, revs up on its own. when i mean it revs it dont rev hard it just revs slightly, the whole car shakes and vibrates. onces it vibrated so violently the car...