Question about 2001 Mercedes-Benz C-Class

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No power to fuel pump on 2002 C240 model

There is no power to the fuel pump when turns the key in start position.  What causes the problem?

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  • ntliem May 23, 2009

    Thank you very much for your advice. I will check that and let you know the progress. I have to look for the electrical diagram in able to do that check first in the morning.

  • ntliem May 23, 2009

    Thank you. I fixed the problem. It was the relay.

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Hello and thanks for choosing FixYa.com!

Try inspecting your vehicle's fuel pump relay. The relay is a sort of "OFF/ON" switch that sends signals to the fuel pump when the ignition switch is turned. If it has failed, the fuel pump will not get a signal to power on.

Posted on May 23, 2009

  • Joseph Dugger
    Joseph Dugger May 23, 2009

    Hello and thanks for choosing FixYa.com!



    Try inspecting your vehicle's fuel pump relay. The relay is a sort of "OFF/ON" switch that sends signals to the fuel pump when the ignition switch is turned. If it has failed, the fuel pump will not get a signal to power on.

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Its the crank positioning sensor

Posted on Jun 10, 2009

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