Cracked Fuel Tank
On the 3td tank on wife's 2009 F650/800 Twin due to cracking. Bike has a total of 1,500 easy miles. Use only Chevron gas, no off road use.
First one was really, really bad and replaced under warranty.
Second one was just in the initial phases but replaced under warranty.
The trird one is now on the bike, for less than 2 months and is holding up - so far.
I have a 2011 F800GS as really don't look forward to this issue popping up.
Hope BMW has the fix by now.