It can only be enabled via coding, atleast here in the US.
Originally Posted by southern6er22
Folding the mirrors using the key fob is even mentioned in one of the quickie guides that came with my (U.S. spec) car. I've tried everything, and it doesn't work. I struggle to find a reason why they'd disable this. I know it isn't a legal thing since just about every MB and Lexus SUV and high-end sedan have this enabled. And you can do it by pushing the button on the door, so I'm lost for a reason other than BMW sustaining severe brain damage...