I'm still curious about what the actual P/N is that a dealer would use for a new, original RCM....can anyone tell me what that part number would be? Is it the same # for a Crossfire as it is for a Mercedes SLK320? Is there a difference in the required part number for different years of XF's? Is the Chrysler P/N different than the Mercedes P/N? I'm really not looking to buy one, but the "paradox" that is created by the XF's "hybrid" construction seems to have set-up a very confused dealership/parts supplier network. I'm using this number to do some "research". What is the number on our factory RCM's? Thanks.