drowning humming noise at 35mph+

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  • Group A
    Wrencher
    • Feb 2006
    • 201

    #1

    drowning humming noise at 35mph+

    i get this loud humming noise that completely drowns out every other sound at speeds above 35mph and getting louder upto 70mph. its coming from somehwere in the rear. i thought it might have been the trans or dif but i changed botht he fluids and the noise isnt gone. so now im thinking it might be the rear wheel ebaring. does this sound like symptoms of a bad wheel bearing? and if so how hard is it to change the wheel bearing?
  • lordofthewaters
    Mod Crazy
    • Oct 2005
    • 714

    #2
    Sounds like it to me. Mine was pretty easy. But you'll need the right tools.

    Sarcasm is a body's natural defense against stupid.
    When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's £3.95 per minute.
    "My mother never saw the irony in calling me a son-of-a-bitch." Jack Nicholson"
    Old age and treachery will always overcome youth and skill.



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    • Group A
      Wrencher
      • Feb 2006
      • 201

      #3
      is there a write-up you can link me too? and what tools will i need?

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      • lordofthewaters
        Mod Crazy
        • Oct 2005
        • 714

        #4
        http://www.pelicanparts.com/BMW/tech...el_bearing.htm

        Sarcasm is a body's natural defense against stupid.
        When a man talks dirty to a woman, it's sexual harassment. When a woman talks dirty to a man, it's £3.95 per minute.
        "My mother never saw the irony in calling me a son-of-a-bitch." Jack Nicholson"
        Old age and treachery will always overcome youth and skill.



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        • AlpineIS
          Advanced Member
          • Aug 2006
          • 161

          #5
          Here's a great write up with pictures:

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          • Group A
            Wrencher
            • Feb 2006
            • 201

            #6
            thanks, AlpineIS

            Comment

            • Lair
              E30 Mastermind
              • Apr 2006
              • 1553

              #7
              Check the front bearings before you start taking stuff apart.
              McCain's military draft: Are you willing to bet your life?

              Comment

              • bddog
                Grease Monkey
                • Feb 2004
                • 351

                #8
                Don't forget the carrier bearing or a u-joint. They seem to wear out sooner and easier . Crawl underneath . grab the driveshaft twist back and forth.See if anything moves around too much.
                Open your windows somewhere where it is quiet.
                Drive slowly down the road.
                Turn hard to the right.
                If the sound stops . it is right rear wheel bearing .
                Vise versa.
                Don't forget the cvc joints .Check the boots for damage.
                Guibo also on these cars

                Comment

                • bddog
                  Grease Monkey
                  • Feb 2004
                  • 351

                  #9
                  I have a new carrier bearing $30
                  Last edited by bddog; 09-02-2006, 08:41 PM.

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