Fuel line clips... what's correct? - PeachParts Mercedes-Benz Forum

landev · #1 02-09-2008, 04:33 PM

My '96 E300D is proving to be an ongoing headache... I fixed the leak from the supply line to the fuel tank to remedy the "no start" condition. Seemed that all was well and fine... then it started to snow.

As we got 4' of snow over the week, I just left the car in the shop and have been driving my pickup. I noticed a few days ago the odor of diesel in the shop, then discovered a 3' diameter puddle of diesel on the floor. "Damn... I must not have gotten the leak fixed" thought I, so ordered another supply line from the dealer ($48!!!) in preparation for this weekend. Today, I pulled the intake manifold off (again) and discovered that the supply line is not the problem, but that there is diesel dripping from the injection pump where the clear fuel lines connect and are held with white U-shaped clips.

When I bought the car, I was told by the previous owner that he had replaced all the lines so that he could run biodiesel if he wanted. I recall he stated that the white clips were not properly installed when he got the car... that instead of the clips being pushed in fully, they should be pulled out to seal correctly. The upshot is that he pulled the clips at all connections where they had been previously pushed in fully.

I went through the manual and can find nothing about the correct position of those clips. My question is: "Should the clips be pulled out or pushed in to fully seal the lines?"

I am currently experimenting and have pushed the clips in so that they are fully seated. I then stuck a paper towel under the fitting to see if there is still leakage. So far, the drip has stopped.

What's correct?

...Update...

Just had another look... still leaking! Bummer!!!

Thanks in advance!

-l-