+1 for documenting your experience/procedure. I have the 3.0 with sport suspension and am going to have to do some suspension work sometime soon as I just passed 140k on original struts. I'd love to know how the Bilsteins compare to stock. Are you doing any bushings while you're in there? Seems like a pretty good time to take care of those too.

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2003 X5 3.0i, 150k miles