The vibration I noticed was interesting. I only noticed it when I was accelerating very hard and only in the speed ranges I mentioned. The vibration remained constant irregardless of speed which made me think it was the driveshaft, additionally I only felt it in the seat and not the steering wheel. After inspecting the wear items in the drive shaft I decided I would hold off tearing the car apart until I installed the new wheels/tires.

I have the exact same wheel/tire combo you do, how long has it been since you balanced the tires? Also how often do you drive the car. I drive mine once a week if I'm lucky and usually only once every couple of weeks. I've noticed that these tires and the SO2's I had before flatspotted and required at least 20 miles to smooth them out.

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Afshin

Current:
02 C32 AMG

Previous:
92 500E
84 190E 2.3 5 Spd