So I am thoroughly confused because there is conflicting information issued by BMW.
According to
http://store.bmwgpsmaps.com/ ANY 2009-2010 3-Series MUST be updated at a dealer.
But, many posters here prove that that is not the case.
But, at the same time, a BMW dealer sold me the update USB which clearly states it should work on my 335. But alas, it does not.
Up to this point in my life, I didn't think Germans were this sloppy. Anyone have perspective on what is going on?
Do the product people at BMW know what they are doing? Seems like incompetence.