I have a 2014 Q7 21" tires S line where the steering wheel has started to oscillate going 65+. The vibration transfers to my hands when holding the wheel and is a real problem. Has anyone else experienced this? I've seen older year models of different audi's have something similar. I would like to learn if other Q7's, especially 2014 do this. It's already been balanced and other work. ie; tried replacement wheels/tires and the dealership says they saw the same issue.