Just traded my 01 E320 4M with 118,600 kms for a 2006 Lexus GS300. I bought the E with 80,000 kms on it and a vibration cropped up between 60 kmph and 80kmph daily until it warmed up. Not tires, but a known problem with MB and they say it can't be fixed at London ON MB. Also 2 front fenders rusting through along with bottom of the doors,my problem not MB's, and various suspension issues. CD changer and audio system was all fuzzy sounding and the drivers chair creaked like an old lazyboy. Service got expensive and it was just time to let it go. It was disappointing because we thought we would have many years of service from this car but we became afraid that it would end up being worthless.
Engine performance was great as was braking and handling.
Stand behind the product. An MB should not rust at 7 years old, we expect more.