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      11-29-2023, 10:04 PM   #1
Zawhar
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2017 BMW M4  [10.00]
Vibration 90+ MPH

Hey guys I am unsure of what route to take but for my car I have some vibration at my steering wheel which ends up also vibrating the entire car after I go past 100+ mph. My car has 15mm all around and is lowered and I noticed if I’m turning on a bend 90+ the vibration is a lot worse almost feels like the wheel and tires are bouncing. If anyone has any suggestions let me know.
My possible routes
Rotors
Diff bushings
Wheel balancing
Shocks
Tires
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      11-29-2023, 11:22 PM   #2
NickyC
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Check wheel balancing, some weights might have fallen off. Good luck.
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      12-01-2023, 10:32 PM   #3
TRman
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It depends if it came on suddenly or over time. If over time, tires are cupped with uneven wear. Replacements will fix the vibration, but the real question is what caused it. Most likely warn struts/shocks, wheel bearing or tie rod end. If suddenly or immediately after replacement tires, then probably a lost wheel weight or bad balancing job. Any decent shop can diagnose.
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      12-03-2023, 06:16 PM   #4
M3SQRD
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Does the steering wheel vibrate at all below 90 mph? Does the vibration get worse if you apply the brakes lightly? Moderately? Heavily? What brand of wheel spacers do you have? Have you verified all four spacer mounting faces line up perfectly on the brake rotor-spacer and spacer-wheel? Are the spacers hubcentric?

My initial guesses are either wheels need are in balanced or possibly the spacers are not sitting flush and/or mounting surfaces are not coplaner.
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      12-29-2023, 04:50 AM   #5
NORAGRETS
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Get ur wheels straightened….
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2017 F80 ZCP BSM - Klein Innovation. ActiveAutowerkes. AR Design. BootMod3 Paul Johnson. EvRw. Project Gamma. RW Carbon. UCP. UUC. Hawk. Dinan. NGK. Macht Schnell. TMS. VR. aFe.

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