Ethan, the marks are radial ... form the center outward. All components are tight and the lug bolts are, and have been, torqued properly with a torque wrench since the car was new.

whunter, the fact that the car is 7 years old does not mean that the rotors should be warped. Our 1991 (131,000 miles) and 1992 (89,000 miles) 300CE's still have the original unwarped rear rotors.

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Fred Hoelzle