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Thread: 07 GSA brake surging

  1. #1
    fastgpfred
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    07 GSA brake surging

    I recently bought an 07 GSA with 18K. Both front & rear brakes have a low speed surge/pulse. The rotors were replaced under warranty at 10k. I read a suggestion to sand the rotors for pad residue. This fixed about 50% of the surging. Any suggestions on aftermarket pads to deal with this or do I need check runout on rotors next. At this point it's a small annoyance, not a safety issue. Braking is completely smooth until about 20 mph. Just wondering, I can see an RT needing stainless rotors but wouldn't a GS look better with rusty cast iron rotors??

  2. #2
    Proud Veteran SteveAikens's Avatar
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    Mar 2003
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    My 07 RT has this problem. It's now reaching "safety issue" level and I'm replacing both fronts and rears soon. Solid mount rotors that warp suck.
    Nom de Plume:
    Steve Aikens, Clovis, NM
    BMW MOA #6218
    IBA# 442

  3. #3
    fastgpfred
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    Hi Steve, Are you on original rotors? There is another thread concerning this you want to read. One of the suggestions is don't replace rotors & pads together.
    fred

  4. #4
    Proud Veteran SteveAikens's Avatar
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    I may have seen it but if you can post a link, it would be helpful. Fronts are original, rear rotor was replaced 40,000 miles ago but now needs replacing again.
    Nom de Plume:
    Steve Aikens, Clovis, NM
    BMW MOA #6218
    IBA# 442

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