C3 fuel gauge

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Kevin hartnoll
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C3 fuel gauge

Post by Kevin hartnoll »

Hi
Me again, my 2012 c3 had over three quarters of a tank of fuel but I was going on a long journey so decided to fill it right up.
I kept going until it was to the neck so absolutely full. Only took £18
When I got back in fuel gauge hasn't gone to full

I have read a lot now about not overfilling or this will happen
My question is.......Will it right itself next time I fill up or will it need plugging 8n to Lexia.???
Thank you
Kev.
wheeler
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Re: C3 fuel gauge

Post by wheeler »

Do a BSI reset before you do anything else.
Kevin hartnoll
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Re: C3 fuel gauge

Post by Kevin hartnoll »

How do I reset BSI ? Is it wait 3mins and disconnected battery?
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GiveMeABreak
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Re: C3 fuel gauge

Post by GiveMeABreak »

Follow this:

BSI Reset / Battery Disconnect / Reconnect Procedure

I had this happen, always stop fuelling after the third click. I had mine recalibrated at the dealers, but you may be lucky after a reset.
Kevin hartnoll
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Re: C3 fuel gauge

Post by Kevin hartnoll »

BSI reset didn't cure it so guess wait till next refuel and see if it sorts itself if not a trip to the garage for a session with Lexia
Thanks for your help.
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GiveMeABreak
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Re: C3 fuel gauge

Post by GiveMeABreak »

There should be some tests they can do, but if this fails, then it is possible the gauge itself in the pump housing may be stuck or broken.
Kevin hartnoll
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Re: C3 fuel gauge

Post by Kevin hartnoll »

Yes initially thought fuel sender but 5gen 8 read a lot of threads about this problem
So not so sure now the gauge is going down as I use the car but obviously under reading as it started on just over three quarters 2hen I filled it right up.
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GiveMeABreak
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Re: C3 fuel gauge

Post by GiveMeABreak »

I put a picture up here of the usual issue:

viewtopic.php?p=609032#p609032
Kevin hartnoll
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Re: C3 fuel gauge

Post by Kevin hartnoll »

At last I have done 200 miles so topped up and fuel gauge went to full
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GiveMeABreak
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Re: C3 fuel gauge

Post by GiveMeABreak »

Ok, great - it may of been enough to empty some of the tank and the sloshing about may of freed up the sender wire.

So - don't fill after the third click in future as officially recommended and you should be fine.