[S800vxr]

In the process of fitting an MSS HAS kit to my M5 and thought id share how to access the rear top suspension bolts.

Drop the back seat down and pull the top of the side bolsters out to free them up, then slide the bolsters up and out of the lower fitting. Pop out the 5 pin tabs along the front of the shelf. Next you need to pull of the lower C piller covers, to do this you gently ease open the front edge and you will see where the plastic frame is popped into the side of the piller, pop this off and the slide the cover forward to unlock it from the push clips (2). Next you just unbolt the seat belt reels (m5 and T50 bolts) lay these to the side being carefull not to strain the connecting cable, pull back the rubber insulation and you will see the top bolts. Note when laying the reals to the side pull out 12" of seatbelt and tape it so it does not retrack. This gives space later as the reels auto lock as certain angles.

[TimmyBHGM5]

Would like to see some images, Thanks!

[M5 F90 (2018)]

Originally Posted by S800vxr

In the process of fitting an MSS HAS kit to my M5 and thought id share how to access the rear top suspension bolts.

Drop the back seat down and pull the top of the side bolsters out to free them up, then slide the bolsters up and out of the lower fitting. Pop out the 5 pin tabs along the front of the shelf. Next you need to pull of the lower C piller covers, to do this you gently ease open the front edge and you will see where the plastic frame is popped into the side of the piller, pop this off and the slide the cover forward to unlock it from the push clips (2). Next you just unbolt the seat belt reels (m5 and T50 bolts) lay these to the side being carefull not to strain the connecting cable, pull back the rubber insulation and you will see the top bolts. Note when laying the reals to the side pull out 12" of seatbelt and tape it so it does not retrack. This gives space later as the reels auto lock as certain angles.

Thanks for the information and how do you find the ride with the MSS over the standard suspension? Thinking of doing this but looking for feedback for those that have gone the MSS route. Thanks