05-26-2021, 11:54 AM | #1 |
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Rear brake Vibration/Judder
I have been having an ongoing issue that I have not been able to diagnose with my 2016 X3 35i, whenever I brake hard enough for the weight to transfer to the front I get a vibration that can be felt in the rear/brake pedal. It normally only happens above 50-60 mph and only if I hit the brakes hard enough to induce brake dive.
Here are the things I have checked/replaced: New pads and rotors Alignment New Tires None of these have even affected the vibration that can be felt mostly in the pedal but in the rear of the car. I do not get a steering wheel vibration and the harder the brake dive the harsher the vibration. Any ideas what could be causing this or where to look next? |
05-26-2021, 10:25 PM | #2 | |
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Warped wheel hub which the rotor attaches to. Rear bushes / suspension need replacing. Your ABS is kicking in? Drive shaft/ diff issues - Does it happen when braking in neutral if the ZF even allows you to get into Neutral . Did some kind of accident damage or other work initiate the vibration? have you always had it? My money is on worn suspension components. Also try swapping wheels back to front just to rule out any wheel issues that were missed by the tyre shop. Last edited by bmwPower99; 05-26-2021 at 10:42 PM.. |
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05-27-2021, 05:57 AM | #4 |
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try getting your wheels Hunter Road Force balanced
https://www.hunter.com/find-equipment/ |
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05-27-2021, 06:54 AM | #5 |
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As someone else mentioned, sounds like ABS kicking in. If you have never experienced it, it can be unnerving the first few times. It will clearly lead you to believe there is something wrong.
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Doug
2019 BMW 430 XI Grand Coupe, White, Black leather interior 2016 BMW X3, 28d, Mineral White metalic, Oyster Nevada leather interior. |
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06-02-2021, 09:03 AM | #6 |
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I considered it being ABS, but it happens every time I brake at speed and varies from mild to aggressive depending on how hard I brake. I have felt ABS before and unless the ABS is broken this is not it.
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06-02-2021, 09:05 AM | #7 | |
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No damage ever, no accidents, and there was a bent wheel that was repaired and straightened last year but was fine for 10k+ miles after that. Still does it when putting it in neutral, tried turning off all traction control and putting it in neutral and will still judder/vibrate the rear. Any idea where to look for a worn suspension bushing? Any more likely to fail first that might be worth replacing? |
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06-02-2021, 03:26 PM | #8 | |
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Last edited by bmwPower99; 06-02-2021 at 03:49 PM.. |
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