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Old 11-13-2013, 03:00 PM
Registered User
Join Date: Dec 2009
Posts: 427
Anyone online? Im doing a diesel purge on 95 E300D

Im doing a diesel purge on 95 E300D. I have it hooked up with the return line which is the the hose on the left of the three that are there and then also hooked up a hose from the Prefilter.

There is fuel moving in the return line but nothing is moving in the feed line?
Why is this occurring? Thanks

1994 S350D
1995 E300D
1997 E300D
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Old 11-13-2013, 03:13 PM
sixto's Avatar
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,807
A picture or diagram would really help.

What do you mean hose 'from the prefilter?' In terms of fuel flow, the lift pump line should draw from the bottle of Purge. Whether that goes through the prefilter is up to you.

87 300D
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Old 11-13-2013, 03:18 PM
Vice President of Snark
Join Date: Nov 2009
Location: Austin, TX
Posts: 1,223
You should only be doing this from the two rubber lines that are attached to the hard lines on the driver's inner frame rail, under he IM.

Those two hoses are such a pita... huge downfall over the ease of access of an OM617...
'85 300TD "Puff The Magic Wagon" - Rolling Resto
'95 E300d - 110K Looking for a new home
'19 Mazda CX-9 Signature - Wife's sled
'84 300TD "Brown Betty" - Miss this one
'81 240D "China Baby" - Farm grocery getter
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Old 11-13-2013, 03:34 PM
Registered User
Join Date: Dec 2009
Posts: 427
Thanks guys, I discovered a an air leak in the line from the pre-filter. Installed another line and all is good!
1994 S350D
1995 E300D
1997 E300D
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Old 11-13-2013, 04:39 PM
compu_85's Avatar
Waiting for his Model 3..
Join Date: May 2008
Location: Springfield VA
Posts: 5,174
Does this help?

Mercedes 350SDL Diesel Purge / Fuel filter replacement - YouTube

1991 350SDL. 230,000 miles (new motor @ 150,000).

2013 Fiat 500E. 20,000 miles, 80 miles at a time.
2012 Passat TDI. 95,000 miles. More space, power, and fuel economy than the Benz
2004 Touareg V10 TDI. 150,000 miles. One of 450.
1999 Jetta TDI. 310,000 miles.
1992 Jetta ECOdiesel. 156,000 miles. 1 of 48. Sold.
1991 Jetta ECOdiesel. 430,000 miles. 1 of 700. Sold to VeeDubTDI, totaled in front of our house
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