This ain't got nothin to do with Mercedes but a wheel is a wheel. I have the factory chrome billit wheels on my Toyota truck. One is very slightly bent and has runout. It balances fine on the computer balancer and when it's on the back it's unnoticeable. But on the front you can feel it tug at highway speed. I hope that ain't your problem. I have the painted eight hole on my 124 with Bridgestone Eager tires and clamp on weights. Never had a problem.