I've really been loving this car (2013 P85) and the Rockville MD service center has been great. But recently my car started making the milling noise. They made a recording and sent it to Tesla and was told that it was within tolerances. I'm not satisfied with that response from Tesla. The noise is annoying and taking enjoyment away from ownership. It's getting worse which may be an indication of imminent failure. The noise started suddenly, which is an indication that something has gone wrong. Not all cars have this issue, so the argument that it's within tolerances doesn't hold water with me. It's a known Model S issue and I want Tesla to take ownership of this and fix my car before it ends up leaving me stranded on the side of the road - or worse. My car has about 33,000 miles on it - does Tesla plan to just wait for my warranty to run out and then volunteer to repair it? I'd like to find out who I can escalate this issue with in MD - anyone know?