Part discontinued, new part wrong connector
 

On the fuel pump assembly. The original part is 2094700241. The new part number is 2094701394. But the connector on top (3wires) is different. What is the thing to do?

They sell a sub harness pigtail that gives you the correct plug , its an adaptor new pump to older car see dealer

It think I figured that out, finally. Part 2114400507?

Bumping the thread, since this Fuel Sending Unit wiring harness issue still comes up and can be very frustrating. The below info may not be 100% accurate, and corrections are welcome.

Many years ago, Mercedes updated old-style Fuel Sending Units with square-ish 3-pin wiring connectors (such as 211 470 4094, see photo) to new-version Fuel Sending Units with flat 3-pin connectors (such as 211 470 6094). Cars that haven't been updated yet will likely need Wiring Harness Adapter 211 440 0507 and possibly an updated plastic wire holder, which can be purchased from Mercedes dealers.

Tags: 2114704094, 2114706094, 2114400507