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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 11-22-2004, 04:26 AM
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Hi All,
Just wondering if anyone has had a problem with there fuel gauge not working and if so what was the problem, the empty light is permanently on and the gauge shows empty even with a full tank. If it is the sender unit in the tank is it a DIY or do you recommend it to a pro.

Cheers.
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#2 (permalink) Old 11-22-2004, 10:21 AM
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If it is the sender unit, it's very simple to DIY.

You just need to pull up the lower cushion on the back seat.
There's two flaps under it, lift them and unscrew the white cap you see there. (now would be a good time to put out your cig... lol)

There should be a walkthrough available on the net.

BTW, does tapping the dash above the instrument cluster make the fuel gauge work? If so, you need a new instrument panel.
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#3 (permalink) Old 11-22-2004, 10:43 AM
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i just changed my fuel pump this weekend. There is a level sensor on the pump (kind of like in a toilet). It very well could have got stuck or just failed. I would start with a removal and reinstallation and see if that helps. The pump im talking about is on the passenger side

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#4 (permalink) Old 11-22-2004, 09:14 PM
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its failed on me once but its never happened again hmmmmm..

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#5 (permalink) Old 11-24-2004, 08:55 AM
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Thanks Guy's,
I've located the two access points to the tank under the back seat, is there two level sensers in the tank, and if so how do I tell which one is faulty, the one on the right side has the fuel pump by the loooks of the wire loom that goes into it.
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#6 (permalink) Old 11-24-2004, 09:44 AM
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i know the one on the right has a level sensor. I would start with taking out that one and taking a good look at it. A new fuel pump will run you about $150. But i would take it out and examine it first. I replaced mine because it was getting loud. Good thing too because when i pulled that sucker it was filthy brown and looked as if it was about to die..

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#7 (permalink) Old 11-24-2004, 11:23 AM
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That happens to me all the time.. when my fuel gauge reads empty and I refeul it sometimes takes a few minutes before it reads it and or when I reignition my car than it reads it. ( sometimes it takes 3-5 times turning off and on the car before it reads the gas)

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#8 (permalink) Old 11-29-2004, 11:13 PM
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error
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#9 (permalink) Old 11-29-2004, 11:18 PM
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FIXED!!!!
Pulled out the fuel pump side and there was a broken wire on the sender, a bit of solder and i'm back in business.

Thanks again for all your help.
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