I have the same issue, soon I am going to replace the injectors....and if that doesn't help, I will swap on a used fuel accumulator I have from a junk yard car and see if that makes a difference. I can always keep getting more of those.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

RG, have you checked/replaced the fuel pump check valve?

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Fred Hoelzle

ps2cho:

Thanks for the PDF. I think that link is for the M103 engine - correct? I have the M104 - is the procedure and the specs the same?

I have not tested the fuel pump check valves - not sure how to do this??? But, they are only around $15, so I may just replace as I start to get into this a little more.

ryan

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RG Newell

1984 300D
1972 250
1986 560SL
1991 300CE