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Old 07-24-2006, 12:54 PM
Join Date: Apr 2006
Location: Fountain, NC
Posts: 91
Fuel line under tank, W123 sedan

Well, I guess I got the dreaded fuel line blues too. I doubt it is completly the fault of LSD, but Im sure it didnt help. Anyways, anybody know the part # or a source for the fuel line that comes from the bottom of the tank, passes under the car to a metal fuel line? Its about 5-6 inches long with a braided material covering and a metal fitting on the end going into the tank. Its on a 1982 300D sedan, turbodiesel. Any help would be most appreciated.



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Old 07-24-2006, 12:58 PM
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Unless you want to have the part look the same as the origional, you can remove the line, grind off the swagged collar and replace the hose with standard fuel line and a hose clamp.
My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.
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Old 07-24-2006, 05:17 PM
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if you want to be bio-ready, get a length of viton hose to replace it.
replace the hose in the engine comparment as well.
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Old 07-24-2006, 11:36 PM
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Join Date: Apr 2006
Location: Aiken, SC
Posts: 204
Hose replacement kit

I got the hose replacement kit from and replaced all of the hose on my 240d, since a couple had been replaced, and some were original. When I went to do the hose you spoke of (tank to metal line) I found out the hose was leaking under the braid and weeping fuel at the rate of a few drops per day.
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Old 07-25-2006, 08:31 AM
Join Date: Apr 2006
Location: Fountain, NC
Posts: 91
I ordered the kit from Mercedes source yesterday, hopefully it will be here by this weekend. I hate losing fuel onto the ground, especially at 2.95 a gallon.
"Ninja monkeys are meeting as we speak, plotting my demise."

1982 300D "Melba" 332k
1985 4Runner "billygoat" 204k
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Old 08-12-2006, 05:37 PM
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Location: Minneapolis, MN USA
Posts: 341

I believe I have the same leak on the 92 300D w124. How do you get at this hose? Do you have to remove the fuel tank or can you get at it from under the car?


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Old 08-12-2006, 05:57 PM
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Join Date: Sep 2005
Location: Long Island, NY
Posts: 459
I just replaced both lines on my 240D due to 'biodiesel-damage'. Easy task, you can get to them from underneath. I'm not sure if it is as easy on a W124, but check the area right above the rear differential.

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