MERCEDES W203 C180K: FUEL PUMP REPLACEMENT

Its been several years now I am driving my Mercedes w203 with cranking difficulty in the engine.

Sometimes it starts at first try..sometimes, it took longer to start the engine. Still, it will crank at the end.

This symptom causing me a lot of hassle, and stress... It took me many years to finally manage to really find the root cause of the problem. At one point, I just get used to the problem and live with it.

Troubleshoot the Problem:

Battery and spark plug has been changed a year ago...I also think fuel filter also is still good because it's just been replaced several years ago...

I suspect it must be a fuel pump or something related to the fuel system. Therefore, decided to purchase a fuel pump. and below work has been carried out to replace the fuel pump. Refer to below procedure 1.

Solution:

In the end, it is a cheaper repair option to give it a try. The following are the procedure for the fuel pump replacement.

Part Require:

1) Mercedes C180K fuel pump RM120-RM300
(Part no: A2034702394)

Tools:

1) Spanner set

2) Cari Jack

3) Cari Jack stand

4) Mercedes repair tools

*All tools must be ready before repair work is done. Obviously, if hardware shop just around the corner and easily accessible like mine, then can proceed with the repair and purchase any tools whenever requires.

Procedure:
1) part of the car on a secure level surface.
2) disconnect the fuel pump and fuel flap fuse.
Refer to the figure below and fuse can be accessed in the rear trunk.

3) Remove rear seat

4) remove plastic and pad insulation cover and remove the metal cover to have access to the fuel pump

5) twist the plastic tighten counterclockwise to open it. after that, cover can be removed.
Please take note that fuel in the tank should be almost empty.

6) Carefully take out the old fuel pump.

7) installation is in reverse order

I hope this note will help. Good luck & Cheers

Comments

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