[Sam_M550i]

2018 M550i with 28k miles and recently noticing that when I am stopped and I begin to start moving (normal acceleration) I feel a slight vibration somewhere under the car or from the back. It is not felt in the front nor steering wheel. Any ideas what could cause this? I have Dinan spacers that I have installed and torqued correctly and I have double check their torque as well. I cannot recall whether the vibration was there before the spacers or not. Could this be a sign of a flex disk (giubo) being worn out?

[Sam_M550i]

I have removed the spacers in the rear just now and I still have the vibration when I start moving from a stop.

[oldtexasdog]

I would check the guibo. Their not usually expensive or hard to replace.

[Sam_M550i]

Originally Posted by oldtexasdog

I would check the guibo. Their not usually expensive or hard to replace.

I inspected the flex disc near the differential and hard to see when I'm laying on the ground but looked like there were some crack. I am hoping when I got for service next month to the dealership it is something that would be taken care of with my extended warranty through Route 66.

[HerkHealer]

Originally Posted by Sam_M550i

I inspected the flex disc near the differential and hard to see when I'm laying on the ground but looked like there were some crack. I am hoping when I got for service next month to the dealership it is something that would be taken care of with my extended warranty through Route 66.

Please post your experience with Route 66.
I'm sure lots of us would like to know how it went.

[WretchedRefuse]

Interesting that the guibo would go after only 28K miles. Have you been driving it hard?