I have previously replaced the IP and all fuel lines and fuel filters. Now there is a little fuel on the top of the fuel filter. I can't see a leak. The prefilter area is dry. Every O ring is new, all lines are new, new filters all in May 07. Any advice?
Steve

On top of fuel filter or fuel filter housing?

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-disav

99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD

My guess would be the filter might just be a little loose if there is fuel on top of it. There is a proper torque spec for it but I have found that I have had to exceed that in the past to get it to stop weeping past its seal. Try tightening the bolt a little and see if that stops it. Hold the filter to keep it from turning while you tighten it. Just do a little, maybe 1/16-1/8 turn.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

Did you also replace the oring on the fuel filter bolt too?

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

No bolt itself, I just did the bolt's O ring. There's a bit on the bolt top and filter top.
Steve