Update: Finally converted up BC coilovers, no issues, straight swap and only thing left is the tracking/balancing. The warning on the dash is still there as the bmw tech who assured me he can do the job all of the sudden decided he won't work longer than 2pm today...its Friday....God forbid! I'll have to sort this out another time I guess.
I had an unrelated issue though when changing oil. When I opened the filter housing 3 pieces shot out, a spring, a plastic bit and a metal holder of some sort. See pic: I wasn't able to find where they came from and after almost 2 hours of looking around, calling people, reading on forums I gave up and put the filter back without it. Any advice?
BMW X5 4.8iS 2005