AbdulWaris

I have a 2011 Audi Q5 which has done around 18K mileage so far. I had observed the steering vibration at speeds above 90kmph and the dealer did the wheel balancing for me. But i still continue to get it on different roads and different tracks. When approached the dealer again, they say its merely due to the road feel and no issues since its not coming on all the roads. I am somehow not convinced with their answer. Can someone share their expertise on this subject? Thanks, Waris.