After going to a presentation at a local l dealer the lead tech talked about the issues occurring because of the increased required biodiesel %'s. Said BMW diesels were designed for around 5% (forgot exact # B7?) but my state mandates10% and supposed to be moving the 20% soon. Tech said in very carefully, legally worded
, BMW will support the issues caused by the higher % for the length of the warranty. I wouldn't consider a diesel in my state at least unless I only planned to lease for 3 years. Lots of articles about BMW and issues with B10 and higher. Might be why they're not rushing to send them here. Check what your state mandates.
Just something to consider.