car has vibration on 2008 Mercedes-Benz CLK550

car has a little vibration between 65 and 85 mi an hour. dealer has blanced tires also repaired two rims. dealer told me that this more road vibration, on some roads.some times not as bad thank you.

Asked by for the 2008 Mercedes-Benz CLK550
I had the same problem, I replaced all the arm control System (10 parts) and the front suspention system.