Gas tank/indicator

I have a 1998 C230. Occasionally the gas tank eject the filling house with the tank 3/4 full. I mentioned it to the dealer service supervisor but they could not give me a good answer. The tank was almost empty and the warning yellow light was on, when I filled the tank the Indicator still on empty and the light still on. It goes to fill and returned to empty.
Can anyone answer the two q's. This car has 50k miles and I do most labor myself. Thanks

I have a 1998 C230. Occasionally the gas tank eject the filling house with the tank 3/4 full. I mentioned it to the dealer service supervisor but they could not give me a good answer. The tank was almost empty and the warning yellow light was on, when I filled the tank the Indicator still on empty and the light still on. It goes to fill and returned to empty.
Can anyone answer the two q's. This car has 50k miles and I do most labor myself. Thanks

Fuel tank senders, one probably faulty but do both at the same time.

Fuel tank senders, one probably faulty but do both at the same time.
Can you tell me where they are located at?

On the underside at the rear locate the fuel tank and the senders are on the front of the tank.

Sorry I lied, I just noticed it's a W202 you've got. The tank senders are on TOP of the fuel tank.
1. Take off the covers for the senders
2. Remove the fuel return hose
3. Pump out the fuel
4. Disconnect the hoses for the fuel pump
5. Replace senders and refit everything

Sorry I lied, I just noticed it's a W202 you've got. The tank senders are on TOP of the fuel tank.
1. Take off the covers for the senders
2. Remove the fuel return hose
3. Pump out the fuel
4. Disconnect the hoses for the fuel pump
5. Replace senders and refit everything


Can you pls tell me how would I gain access to the sendors? Like from the trunk or underneath the back of the car. And would changing the sendors related to the tank not excepting full fuel sometimes! Thank you

Can you pls tell me how would I gain access to the sendors? Like from the trunk or underneath the back of the car. And would changing the sendors related to the tank not excepting full fuel sometimes! Thank you

Removing the rear seats you can gain access to the panels for the fuel sensors ( if not ill look it up at work for u)