Hi all!
I'm in the process of installing the Bleazey bevel box mounts in a new-ish to me 2017 M3W with about 17K miles on it.
I've just started cleaning out the accumulated dust and debris and noticed the chassis cross-brace underneath where the belt runs is abraded.
![[Linked Image]](https://tm-img.com/images/2021/12/30/IMG_20211230_102113.jpg)
![[Linked Image]](https://tm-img.com/images/2021/12/30/rubbing2.jpg)
The rubbing is still shiny, so doesn't seem like some historic problem. I'm guessing a combination of the NVH overshooting and bending down and the lower half of the belt flapping around on lifting off throttle?
Has anyone else noticed this happening?
