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Thread: Has that's reading half, when it's full ???

  1. #1
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    Has that's reading half, when it's full ???

    That says it. I filled up today when the gauge read 1/2. I let it fill until it clicked. I then looked again and it said 1/2 again. I really don't like not knowing how much is in the tank. So, where and what should I be looking for to fix. Thanks.
    Lets get the party started before it's my bedtime.

  2. #2
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    I meant to say " gas guage " not "has that". Another round please.
    Lets get the party started before it's my bedtime.

  3. #3
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  4. #4
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    Both sides of the tank have fuel level sensors in them. If one fails, you get inaccurate readings since they are connect together.
    '93 850Ci - Mineralweiß Metallic

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  5. #5
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    So do I have to change both sensors to fix the problem. Everyone says 8's have two of everything, so this also?
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  6. #6
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    What you need to do is see which of the two (or both) are actually not working. My previous 850 had a broken wire on the rheostat on the driver side sender. I reconnected it (soldered) and it working perfectly again. Don't just start replacing things, it gets expensive fast.
    '93 850Ci - Mineralweiß Metallic

    2001 740iL - Titansilber
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  7. #7
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    What is the location of these units? Underneath the rear trunk pad, under the rear seats,?
    Lets get the party started before it's my bedtime.

  8. #8
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    under the rear seats.

  9. #9
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    Thanks
    Lets get the party started before it's my bedtime.

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