Since buying my W208 CLK, I have had a really annoying vibration at about 50mph through to about 75mph. I have had the wheels balanced 3 times, twice at Kwik Fit (Useless) and once at a local place in Swinton. On the last occasion I sat and watched as they balanced all 4 wheels, each showing that they were ok according to the readout before fitting back on the car. I noticed that in total the wheels (according to their machine) were a total of 60grams out in total across all 4 wheels???!!! Also, the stupid idiots had used the air gun to fasten the nuts back on at an epic tightness, fortunately this was noticed when the car wa in at 124 works and NOT on the hard shoulder! I also think that the steering in general just doesn't feel quite right. Its hard to explain, but for example when turning a corner slowly, if I let go of the wheel it will 'jerk' back into a straight line rather than 'flow'. Maybe this heavier steering is the norm on this car but I am not convinced. I have changed the steering damper to no avail and am now thinking maybe the drag link/ track rod ends may be the next on the list. I want to know, once and for all, that my wheels are balanced correctly so I was hoping someone may know of a specialist in my local area? Someone who may also be qualified to check my drag link assembly, etc and advise what the actual problem is? I really want this sorted, as I am trying my best to ignore it but with the majority of my travel being via motorway this is becoming increasingly difficult!!!