[MechWatch]

There are a couple of guys on this forum who've had the problem. Failure on common rail diesels is different than gasoline and generally caused by getting fuel that's not slippery enough, wiping out the pump and spreading metal all the way back to the fuel tank. Google "120d N47 High Pressure Pump Failure", there's a facebook page with pictures that shows what happens... Except most shops will order up an entirely new fuel system that costs $10k. Find JoePark on this forum. It happened to him.

There are generally three responses to this issue:
1) You, the owner, mis-fueled - Your bad
2) The manufacturer can't be responsible for fuel suppliers giving you bad fuel
3) BMW and their pump supplier didn't design a robust enough system that tolerates a situation that can, and does, occur in the "wild"