I just arrived back from the dealer for inspection service today (14k), had significant and identical center rear tire wear (about 4/32 left in the center) even though I am vigilant about inflating to the doorjam pressure and monitoring thereafter. My suggestion for the rear tire center wear was as follows: I live in Florida and almost anytime I drive, it is on the interstate going at least 70, and perhaps the "standard" recommended tire pressure for the rear is just too high for the 100+ summer temperatures coupled with the heat that is produced from prolonged high speed driving. My service advisor readily dismissed my theory, and is adamant that the wear in the center of the rears is solely due to "the specialized suspension" on my 05 M3, he said he sees it all the time with the M3s and the 3 series in general (guess they have the same specialized suspension?).
Giving my service advisor the benefit of the doubt, my question is - is there something particular about the suspension that could cause the rears to wear in the center? I know that caster has little effect on tire wear (and affects the front only??), camber obviously does, but what could cause identical center wear on the rears? To me, I can't see how it isn't overinflation, it's identical on both tires, and is obviously the result of the side tread not contacting the road while the center tread is. What kind of "specialized suspension" component could cause road contact with the center tread but not side tread, maybe excessive toe?
Anyone else have a similar problem?
Giving my service advisor the benefit of the doubt, my question is - is there something particular about the suspension that could cause the rears to wear in the center? I know that caster has little effect on tire wear (and affects the front only??), camber obviously does, but what could cause identical center wear on the rears? To me, I can't see how it isn't overinflation, it's identical on both tires, and is obviously the result of the side tread not contacting the road while the center tread is. What kind of "specialized suspension" component could cause road contact with the center tread but not side tread, maybe excessive toe?
Anyone else have a similar problem?