Tried searching, but I didn`t find a dedicated thread for this subject: Many norwegians are seeing white/grey stripes running from the side view mirrors down the side of the front door. The stuff doesn`t go away with regular washing, you have to rub/polish to get the stuff off. To make it clear from the start - this is not road dust or salt. Even though the car might seem clean after washing - once the front doors dry up you can still see white stripes on both front doors, and the surface of the doors isn`t smooth. The cause seems to be aluminium corrosion, more precisely the aluminium side view mirror bracket is corroding. "Noone" at Tesla had heard about this when I mentioned it a few weeks ago, but thorugh the norwegian forum I`ve learned that many have this issue (but haven`t noticed as it`s still winter and the cars are permanently dirty). Most, if not all cars will eventually have this if it`s due to the weather. Have anyone heard about new side view mirror brackets coming out anytime soon? The car looks horrible with aluminium corrosion all over the front doors, and there has been discussion about how this can affect the paintwork (so far no evidence of permanent damage to painwork).