Originally Posted by tmv

JCL gives good advice there. I have the same problem with tire wear before, and did lots of researching. My conclusion: have the camber set to minimum within spec (closest to 0) then have toe set as closed to zero (NOT within spec) as possible to compensate for negative camber. (Thanks member "ard" for the advice)
I have to request the tech at Firestone to set toe to -0.01 and -0.02. Don't let them talk you to accept "within BMW's spec"