how do I reset my fuel sending unit? on 2002 Mercedes-Benz C240

I just replaced my fuel pump & filter. My gauge reads 1/2 full, but I'm out of gas... how do I reset this?

1 answer 1 comment
Guess you better re do your fuel pump, the sender is on the fuel pump module. It could be bent or maybe hung on something.
Ok, thank you. I checked the float & it moves freely. But not sure if its hung on anything