E-Class (W123) 1976-1986: 240D, 280E, 300D, 300TD, 300CD

1985 300D Heater Hose

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Old Aug 9, 2023 | 06:10 PM
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Jan T's Avatar
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Sl65, SL600 RENNtech, Verde Ithaca LP640, 3 highly modified Panteras, Maserati Biturbo, 300D turtle
1985 300D Heater Hose

Got overheated popped the hood and heard hissing from this hose shown in red. I think it may be my heater hose, although I never use the heater maybe it dumped water out of a crack behind the hose next to the hose clamp. Having problems finding a hose or part number, anyone have info? Or maybe I can cut at the hose clamp and reclamp the shorter hose? One of the hoses connected to the T is a unit with a heart on it, what the heck.



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Old Aug 10, 2023 | 06:41 AM
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that thing looks like fuel filter w/regulator built into head

but MBs was modified by someone and changed with that biofuel logo.

cannot tell on the hose thing need further back pic to know where it is underhood.
If it goes into firewall then it is heater hose.
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Old Aug 10, 2023 | 05:32 PM
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Jan T's Avatar
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From: Sunny So Cal
Sl65, SL600 RENNtech, Verde Ithaca LP640, 3 highly modified Panteras, Maserati Biturbo, 300D turtle
Heres the hose I just took out, it has a crack on the clamp portion that goes into the engine. Oddball hose shape and also engine side larger than the part that hooks to the T.



Last edited by Jan T; Aug 10, 2023 at 05:34 PM. Reason: add photo
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