In the 300E, it is located on the gas tank.
Get in the trunk
Remove the carpet that covers the yank
You will see a spot on top of the tank where wires are leading to
That is the fuel sending unit
It takes a big monkey wrench and 5 minutes to replage it.
1987 mercedes 300E
1995 e320 conversion(hated the 300e grill)
Monochromatic Paint (Custom Blue)
Flat Badged (front)
custom "carbon fiber" console
18 inch HP EVO rims
Sold! Now I drive a Monte Carlo SS