About 98% of E53 X5's I have seen around have negative chamber issues some more than others. I'm planning on fixing this issue with my X in the summer. From what I have researched/learned you will need to change the following parts for both sides and then get an alignment. I would also replace the 4 sub-frame bushings. That could also be causing vibrations in the rear.

: upper control arm (wishbone)
: toe arm (guiding suspension link)
: link (integral link)
: outer lower control arm bushing (ball joint)



I tired to get an alignment when I first got the X and they couldn't do anything as the chamber would return to where it was. That's when they said I needed to replace those parts. Hope this helps.

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2011 BMW X5 35d Deep Sea Blue Metallic w/ 3rd row
Custom Kicker Audio System
Style 259's on Dunlop Sport Maxx Run Flat
Tune and Exhaust Coming Soon....

05' Ram SLT 2500 5.9l Cummins





(Gone But Not Forgotten) 2008 BMW X5 3.0si Alpine White III

(Sold) 2002 BMW X5 3.0 TitanSilber Metallic