I have had my new (to me) E300D for about 5 weeks now, and have begun to perform the required maintenance. Oil, Fiters, Fluids, etc.

I noticed that the PO had not had the injector return lines replaced during his 6 years of ownership (and dealer maintenace). I can see some "cigar hose" peeking out from under that formidable intake manifold, so I know it's there.

Anyone hasve experience in installing new return lines on a non-turbo E300D?

I changed them every year on my 300SDL, does the E300D have a different requirement?


Tom Kanis
87 300SDL 190K ("the Scharnhorst")
97 E300D 85K Black Opal (not yet named)

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Changed my 95 E300 last saturday. It take about 4 foot of hose . You need to remove the intake air horn then the plastic cover on top of the engine. Not rocket science just time consuming.

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Ricali

03 C240 4matic wagon
95 300E 234,000
7 prior 240;s 5 still going
81 300sd gone
65 230sl gone
49 Studebaker Champion
90BMW convert.167,000
60 Dodge D-100

Tom,

Why did you replace the injector return lines so often? Seems like they should last at least 10 years if they don't have to be removed to R&R the injectors.

I would never replace them before I noticed a leak. I don't fix it if it ain't broke.

P E H

What type of socket is needed in order to remove the air horn and intake manifold? It looks like a torx, but not sure of size...

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#dieselFLEET
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'97 E300
'99 E300

I've never replaced my return lines. I keep waiting for them to leak. But, so far, dry as a bone. I have other things to do other than fix something that ain't broke, as P E H said. Because of the age of the car, I have 2 feet of hose ready to go, however.

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Paul 1987 300 SDL; 2000 ML; '69 MGB; '68 VW Fastback