Am I correct in that there is no caster or camber adjustment on the M3W. I know one of the new upper a-arm kits have threaded adjustments to allow for slight caster and camber tweaking, but not the stock M3W. Obviously toe in is adjustable.
I've never seen any car recommended 0 for toe in. The idea of toe in is to keep the car going straight without any tendencies to wander, which toe out will cause. Having "some" postitive toe in offsets any play in the steering linkage and will keep the car running true.
Not that it couldn’t work, but holding the steering wheel straight while driving and then adjusting the tie rods one at a time to give a straight path forward with the steering wheel straight, in my opinion, would be chancy to get the proper toe adjustment. (You all know about opinions, “They’re like arm pits, everyone has a couple, but some of them stink!”)
I would set the toe in to recommended specs and then drive the car. If it the steering wheel is not straight, as was said prior, if it goes left when the steering wheel is straight, you would lengthen the left tie rod end BUT I would then shorten the right tie rod end by the same number of turns; or the other direction it went to the right. Doing this will maintain the toe in to factory specs and will eliminate the possibility of any negative toe out.
My thoughts are still that 0° toe will sooner or later result in negative toe out as parts wear and loosen up. This can cause wandering and poor tire wear.
Again, this is just my opinion and I have NO experience with M3W’s at all, so I apologize if I’m speaking out of turn with my opinions.
Sorry for rambling on and on again…
