How to Replace a Mercedes Fuel Pump

Replacing the fuel pump on any car is a do-it-yourself repair for someone with a bit of experience in basic car repair. Make sure you have a good repair manual handy for your particular Mercedes and the help of a friend before you get started. Read on to learn how to replace a Mercedes fuel pump.

Instructions

1

Remove the fuel lines from the fuel pump by loosening the nut connected to the fuel pump and the one connected to the fuel line.

2

Unscrew the hex cap screws that attach the fuel pump to the rest of the car. You don't have to remove them, just make sure they're loose.

3

Pull up on the fuel pump lightly to remove. Pour any fuel remaining in the fuel pump into a container for recycling.

4

Clean away any grease or gunk around the edges of the mounting surface. Left over grease and grime will keep the new fuel pump from attaching correctly.

5

Install new gaskets on the fuel pump mounting surface before installing the new fuel pump.

6

Push up on the new fuel pump to attach it to the mounting surface.

7

Reattach the two fuel lines to the new fuel pump. Turn the key and pump the gas pedal a few times. It may take several tries to get the fuel flowing through the new fuel pump.