Tire pressure - iäm running 2.4 bar fronts.. higher than recommended 2.1 but that's for much stiffer run flat... i assume it must be higher for non RFT.
Out of alignment
Tire out of balance - done 500km ago.. should be ok still
Tires not wearing evenly - true. but been there before. only right front.
Bent wheel - wheels were balanced, no big potholes thus far...
Bad belt in tire
bad tie rod ends
bad wheel bearing - all possible
warped rotors - new rotors for last 500km.
Bold is correct, Italic is tested and OK.
'07 TiAg E86 Z4 Coupe 3.0si