According to the door, 2.2bar in the front, 2.4bar in the back. I have the staggered set up on my car, so 255's out back.
2006 BMW E60 520d SE 6MT
2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
2015 Audi A6 Avant Ultra, Black Edition (sorry!)