Fuel Pump on 240D Comes Out - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 06-01-2012, 01:22 PM Thread Starter
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Fuel Pump on 240D Comes Out

The fuel pump on my 1979 240D (rebuilt engine) came partially out recently. The engine still turned over and fired, but it cut out after a couple seconds, I'm guessing because it didn't have enough pressure. A little diesel was even leaking out. Pushing it back in and pumping it a few times solved the problem, but I don't want to repeat this if I can help it... Why would a pump come out like that? Vibrations? Rough roads? Filling up the tank too much? Some other reason?

Thanks a lot for any advice... I am new to Mercedes/diesel maintenance and really need to learn.
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post #2 of 2 (permalink) Old 06-01-2012, 03:11 PM
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If it is the old type with the white knob, it should be screwed in after it is pushed down.

For the 1979 240D there is the W123 subforum with loads of information:

W123 E,CE,D,CD,TD,TE Class - Benzworld.org - Mercedes-Benz Discussion Forum
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