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Thread: Shuddering vibration when braking in reverse

  1. #1
    Join Date
    Sep 2015
    Location
    San Diego, California
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    323
    My Cars
    94 740i, 03 525iT, 86 VW

    Shuddering vibration when braking in reverse

    My '94 740i just recently started having a strange vibration/shudder when hitting the brakes while backing up. Yesterday she got new front pads and rotors, but that didn't fix it. Next up will be pulling the rear wheels to inspect pads and rotors back there. Any ideas on what to look for? CV joints perhaps? TIA!

  2. #2
    Join Date
    Mar 2013
    Location
    Green Bay, WI
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    1,332
    My Cars
    1992 750il / 1991 560 SE
    It could easily be control arm bushings. When they have play you can get cavitation. Similar to driving forward at certain speeds and getting vibration. Generally you can kick the tires and see if they have play or bounce around too much. On a rack is better.
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    1992 750iL

  3. #3
    Join Date
    Sep 2015
    Location
    San Diego, California
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    94 740i, 03 525iT, 86 VW
    Quote Originally Posted by unity View Post
    It could easily be control arm bushings. When they have play you can get cavitation. Similar to driving forward at certain speeds and getting vibration. Generally you can kick the tires and see if they have play or bounce around too much. On a rack is better.
    Thanks for the reply. So rear control arm bushings? It does seem to come from the rear of the car. I also notice it sometimes just reversing without hitting the brakes.

  4. #4
    Join Date
    Mar 2013
    Location
    Green Bay, WI
    Posts
    1,332
    My Cars
    1992 750il / 1991 560 SE
    Front or rear could cause it. But if you really feel its the rear end, check out the "dog bones". When they fail the rear stability goes to crap. The part is also called a pitman arm. 33321125665 bavauto may still have the best price for Lemforder.
    ______________________________
    1992 750iL

  5. #5
    Join Date
    Sep 2015
    Location
    San Diego, California
    Posts
    323
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    94 740i, 03 525iT, 86 VW
    Crawled under the car yesterday, and 'dem bones is shot! I will report back after replacing them.

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