When let off throttle, noise from rear axel ?

[Sjarkfisker]

I have a m4 2015 38 000 KM, under hard acceleration when i let off throttle I can hear a noise/bang from the rear axel or det back of the car i think. It happens sometimes, but not often

Its my first BMW, only had Audi before and never experienced this, mabye its normal for this type of car?

[991dc5]

Check your rear diff bushing. Mine was more pronounced when my bushing was torn. I replaced it with powerflex poly bushings and it's not as apparent.

[M3king2019]

BMW replace my rear diff bushing and noise is still there!
They don't know how to fix this noise.
My M4 never made this noise

[sna66]

could also be a broken sway bar link

[FLOSS M]

The noise in the rear is worse in S3, loud thunk. My current and last car did it constantly, even when new...I chalk it up to part of the ///M experience!

[andrei.m4]

Can you check shafts? I already changed the left one cause the inner( to diff) side has a little...(i don t know the word in english) like broken one but still working without any sounds at normal driving. Inside shaft it have some balls like in bearing and the metalic part inside has wear. I have the old one if you don t understand I can maka a video. How to check? Simple, rotate with hand from the middle of shaft and you will see if it have wear.

[Sjarkfisker]

Originally Posted by andrei.m4

Can you check shafts? I already changed the left one cause the inner( to diff) side has a little...(i don t know the word in english) like broken one but still working without any sounds at normal driving. Inside shaft it have some balls like in bearing and the metalic part inside has wear. I have the old one if you don t understand I can maka a video. How to check? Simple, rotate with hand from the middle of shaft and you will see if it have wear.

I think I understand what you mean, but if you are able to make a video that would be really helpful.

[Sjarkfisker]

Originally Posted by sna66

could also be a broken sway bar link

Will take a look