Body roll issue

[ajm55]

2013 Comp pack (tuned). A few months back I began noticing unusually pronounced body roll on uneven road surfaces - when accelerating hard both in a straight line and going into a corner. Some testing revealed excessive wear on the right front shock.

I fitted a KW v3 coilover kit assuming that would resolve the body roll issue while improving the handling characteristics of the car.

Car feels more planted and I'm happy with the kit but the body roll issue is still present. Switching tires with those that came off a mate's M5 made no difference, so it's not a tire issue.

The BMW dealer I use is at a loss, as am I. I don't wish to throw money at the problem (for example by replacing control arms) in the hope that I'll strike gold but I don't know where to from here.

Any thoughts?

[M5Rick]

So many control arms on these that it just needs one arm with a worn bushing that's hard to spot.

[ajm55]

Originally Posted by M5Rick

So many control arms on these that it just needs one arm with a worn bushing that's hard to spot.

I hear you. I would not like to have to replace all of the control arms in the hope that this will resolve the issue. As you can imagine, this is an expensive exercise. I would like to think that there is a more sensible way of troubleshooting the problem.

[M5Rick]

Originally Posted by ajm55

I hear you. I would not like to have to replace all of the control arms in the hope that this will resolve the issue. As you can imagine, this is an expensive exercise. I would like to think that there is a more sensible way of troubleshooting the problem.

I say that b/c some time ago someone over here had that problem with a '16 Comp that was hard to solve, his was still under warranty and turned out it was a bottom control arm bushing after dealer fully investigated and had arm replaced. The other side was done also while he was at it.

[M5Rick]

I would add he tracked it hard at a disused airstrip nearly every weekend.