Bosch fuel system were self bleeding , when i had a Diesel Camper. But if you change teh fuel filter, make sure that the new one is full of fuel before starting teh engine, or teh pump will take forever to suck fuel through. If you can see bubbles in the fuel line there is air in system, but the way to avoid this is to make sure all junctions are very tight. But it should self bleed, I am sure mine did.
Oldhenry, January 2010
