I have a 2017 Model S. Yesterday, when I was backing up slowly in a parking lot, I heard a loud crunching, scraping sound, and then my front right wheel "fell off." Taking a closer look, it appears that the lower control arm sheered off from the wheel assembly (see pics). I didn't hit anything and have no idea what could have caused it. It took the Tesla roadside assistance tow truck two trips and two people to figure out how to load my Tesla onto the flatbed without doing any further damage. Once at the Tesla service center, they said they saw evidence of "damage to the wheel, backing plate and suspension," from hitting a pothole or something else. I have driven my car normally and have not had any serious impacts. So they are telling me that Tesla will not cover the repair. But spending time on this forum, I have seen this incident several times, sometimes where Tesla covers the repair. I have never heard of this happening to a car before, and it really seems like Tesla should cover this. Does anyone have suggestions as to how to handle this with Tesla? My car is two years old (maybe 30K miles), and I have not had any issues. Any help would be greatly appreciated.