chaversdad:
03778-10 is a common one, MAN reckon 90% of the time just changing the fuel filter will cure this , but if not you need to do a leak test to identify which injector is causing the problem
It`s reading things like this that really pee me off. Not what you have said but the fact that it is such a common fault yet the dealerships where we take ours have done buggerall about it in the thick end of 12 months. 