I had a non-MB once that did all sorts of strange things to the tires, cupping, uneven wear, flatspots, etc. with lots of vibration because the shocks were bad. The car handled well and drove normally except for the vibration. Since the trackrod bushings are gone that could be your problem. Also many have mentioned the subframe bushings. Something is likely loose/worn out in the frontend and you just have to find it. Good luck, RT

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