Ill try that ,question on the o-rings, when I had mine go out on another 190d ,I remember that the leak came from the sides of the delivery valve out of the injector pump.This leak is coming out of the top of the line connection ,pushing pass the flarred connection of the line and valve.If the o-rings go bad will this also be were a leak can occure? I might be wrong on the o-rings as the problem .