Hi there. I am wondering if anyone can give me some advice please? Have recently bought an SLK 250d (65 plate). Noticed some vibration through the steering wheel at motorway speeds so took to Kwik Fit who balanced the wheels and they noticed that the front right wheel was buckled. I took it to a repair shop who have sorted out that wheel, rebalanced it and checked out the other wheels for ‘roundness’ and they were all ok - So I can be reasonably sure that they’re all balanced and the wheels are ‘round‘. But the vibration through the steering wheel is still there at motorway speeds. It feels exactly like a wheel needs balancing but I know they have been done. So I am all out of ideas... are there any other things I should check? I am fairly sure it’s coming from the front wheels rather than the back because it’s coming through the steering wheel and you can’t feel it through the seat.