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Erratic Fuel Gauge

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  • Erratic Fuel Gauge

    Good Morning All,

    I have now pressed my 2006 ForFour 1.5CDi Passion into daily driver status and the fuel gauge is very erratic. It was nearly empty but showing four bars, so put £20 in and it was then showing two bars. So I filled the tank and it went up to 5 bars. Today it has decided to show 7 bars.

    I'm not sure if the fault lies with the gauge of the sender unit? Does anyone have any suggestions as it would be nice to have a more reliable fuel monitoring mechanism than filling up and resetting the trip meter every time.

    Thanks in advance for your help,
    Robin

  • #2
    I suspect your problem is caused by diesel bug fouling your gauge. Checking gauge would be my first call anyway so therefore remove, clean and test it with a multimeter.

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