Hp pump removal on w204 c220

[Christopher mcnairn]

Hello wondering if any one could tel me how hard it is to remove hp pump off my w204 c220cdi and what’s in old in it. Problem is I am finding metal fragments in fur out of filter thinking pump brakeing would be cause of this any suggestions


another question I have I am haveing 2 injectors rested 1&4 what’s the procedure on re starting the engine after refitted as do not have start any methods thanks