Originally Posted by avi8tir
here's a question.... the shop I am going to said they had done several 550's but not an F10 M5. is the process the same?
Yes. Likely the interior trim is more delicate as the M5 comes standard with Alcantara
Write up from the H&R spring install at Turner Motorsports :
The install of these springs took approximately 6 hours. It involves removing all four coil over (spring and strut assemblies) from the vehicle. Each coil over plugs into the EDC system which makes the removal and install of the strut assemblies a bit tricky, especially in the rear where you need to access the top of the strut from under the rear deck tray. You must remove the rear speakers and some trim pieces to access the the EDC harness and the 3 bolts holding the strut.
The most difficult and time consuming part of doing the spring install is making sure there is ample room to remove the rear strut assemblies without damaging the EDC harness on the strut its self or anything around it like the electronic emergency brake. We found the best way to do this is to disconnect the rear sway bar, remove the rear caliper with electronic emergency brake and disconnect the rear control arms. This gives plenty of room to pull out the coilover strut out of the rear wheel well. Other than that the install is relatively straight forward, the front is basically just like most other BMWs.