Judging by your name(flsun), I'm guessing that you live in Florida.

If you're near Gainesville, take it to Continental Imports. The owner(Steve Brotherton) has made many contributions here. He knows MBs inside/out.

I would at the very least get another opinion; however, the diesel fuel likely did you in. The question is, did it deep-six the fuel distributor or another part of the fuel system?

No one can answer this over the WEB. At the very least, I believe you need a tech who is very competent with MB fuel systems.

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'91 300-SEL