I have a 2007 C230 that will not start. After finding no fuel at the fuel rail, I checked the fuel pump voltage connector to find that the positive lead had melted on the fuel pump itself(photo attached). Obviously I need a new fuel pump, but is this something that would happen if the pump froze or had an internal short, or do I possibly have another electrical issue that may have caused this? Is there anything specifically I should look for before replacing the pump? When I check the harness side of the fuel pump connector, it has good voltage. There are no other problems with the car. Check engine light is not on and there are no codes currently, and the rest of the electrical system seems to be fine. Thanks in advance!!

 

Bump...hoping someone has seen this before.

 

Hello and welcome to the forum! I'm attaching a link to our site's DIY tech article on replacing the fuel pump in your C-Class in case you're going to be doing this yourself. As far as your question about the melted connector; please feel free to reach out to us via the contact link below and one of our MB techs will get back to you - just select "Ask a Technical Question". Hope this helps and best of luck!

Mercedes-Benz W203 Fuel Pump Replacement - (2001-2007) C230, C280, C350, C240, C320 | Pelican Parts DIY Maintenance Article

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