My 2010 is making a grinding noise from the right front. I have new brakes so I ruled that out. I too it into a parking lot and makes a bunch of S turns. The noise went almost away in the hard turns which leads me to believe wheel bearings. I watched a video on changing the wheel bearings on YouTube. It is a major job. The smart is 8 years old but only has 18K on it. Kinda low for wheel bearings. I guess they are cheap for a reason. Any other ideas?