There's a well documented post on the r1200rforum.com site about rust underneath the red fuel filler neck assembly that sits in/on the tank. Rather than post my own photos I've included the link: http://www.r1200rforum.com/forum/bmw...-12/must-3018/
This was easy enough to check on my 2011 R1200R with 5600 miles so I took a peak and sure enough, there's *significant* rust underneath the red gasket--much worse than the original post on the R1200R site and more like some of the other posters that responded to his post.
Before I try to figure out how to remove this rust without the dust and flakes falling into the tank I'm wondering if this should be a warranty issue. I have about 6 months left on my the factory warranty.
I'm going to get this fixed whether I do it myself or have the dealer do it under warranty but it needs to be done. Another year or without correcting it and I'll have big flakes of rust that could end up in the tank. My bike has always been garaged, rarely in the rain, and maybe washed 4 times in it's life.
Pretty surprised that rust would accumulate in this location on a garage kept bike and that BMW left the metal exposed like this.