The only thing I can think if, is the tank must have a pin hole in it some where from the gunk/rust...

Odd acceleration issue
 

And you know what I just found. A stupid pinhole leak. Two to be exact.

This is frigin ridiculous.

Can this even be repaired? I knew I should have just swapped the strainer and not cleaned it out. I knew it.


I've honestly never had such a crappy luck either a Mercedes Diesel before this car.


FYI: a new tank from Mercedes is around $1000.

Steel tank? Fixable. I had that done on my '73 Chrysler back in the day. Drain and drop tank, fill with water (this step is kind of important), weld, drain and dry out, then reinstall.

OK
 

Contact local antique car club, restoration shop, look for gas tank repair shops.
I know they are there, and fairly cheap.

A good used tank should be fairly easy to locate, but shipping could be difficult, unless it has been cleaned.

.

I paid 100$ for my used one....there's a couple on eBay....shipping maybe the hard part, I would think you could find someone parting one out around you......I have had the same luck, your not alone.....I was oh I will just replace my strainer....hmm strange, not a drip on fuel coming out.....pulled the strainer what's this? Tar? 20lb of black tar glued to my tank....oh and fuel lines plugged with it....and oh injectors bad oh and the injection pump too....

Mercedes Benz 240D 300D W123 Diesel Fuel Tank 300CD | eBay

Mercedes W123 Diesel Fuel Tank 240D 300CD 300D | eBay

I found a leak free used one locally. I'll go get it this weekend. I am not going to clean it out. I'll just load up on startron

Do us ALL a favor and put some of the settled diesel you drained out of your old tank in the replacement one....shoush it around for a bit and then pour it out to see what might be in the replacement tank.

Let me know if you need/want either of the 2 spare tanks I now have. Last year when I was looking......I bought one in IN and drove up to get it.