Thread: Vibration issue during heavy acceleration
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      10-28-2020, 06:02 PM   #33
deeldoo
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Drives: BMW M4 - DCT 2016
Join Date: Nov 2019
Location: Toronto

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Originally Posted by Imperial328i View Post
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Originally Posted by deeldoo View Post
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Originally Posted by Imperial328i View Post
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Originally Posted by Imperial328i View Post
There's an SIB for M2/3/4 for this exact issue. They replace the diff bushing with an updated one. SIB 33 01 19. I had this done to my M2 and it fixed it. About to have them do my M3.
What were your symptoms? Vibration at what speeds?

Would the car pull strong still? Where could you feel it?
Vibration during hard acceleration particularly in third and above. I could feel it in the seat and the floor most of all.
I have this exact thing, i feel a alot of in the floor. So you replaced the bushing?

And it went away?
Yessir. Make sure they torque the nut properly. I had a clunking after they did it and they had to retorque.
Would aftermarket bushings have the same effect?

Also what year was your car? Did you pay out of pocket?
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