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Fuel gauge

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Fri May 16 2014, 08:26pm
Joined: Mar 24 2013
Member No: #1240
Location: Cornwall
My car has a fun new habit- it has started under-reporting the fuel level by about 3 blobs. It's been doing it occasionally for a few months but is now more often than not. It seems to be about the same amount each time- it used to change back to normal after turning the ignition off and on, but now seems to nee fuel to be added. Sometimes it reports a full tank as 3 blobs under, sometimes it just drops them in the middle somewhere.

Anybody else had this? Any thoughts? My first guess is a sticking fuel sender. Could it be a computer thing?
Sun May 18 2014, 02:39pm
Joined: Mar 24 2013
Member No: #1240
Location: Cornwall
I finally got my Lexia working again, and have a string of related faults:

F17C Gross fuel level information fault
F17D Fuel level information fault
C403 Fuel gauge signal fault : Open circuit

So I guess it's a sender thing. I shall investigate!
Tue Apr 09 2024, 01:49am
Joined: Jun 20 2010
Member No: #164
Location: Wellington
Kia ora Jodyone, (if you are still there)

My C6 has developed the same issue with the fuel gauge.

Did you or anyone else on the site discover what causes this issue.

Best wishes

Wed Apr 10 2024, 10:47pm
Joined: Feb 07 2017
Member No: #2994
Location: West London
mine does it if it has been sitting unused a while. i always fill up at quarter level so havent risked myself running out
Fri Apr 19 2024, 07:41am
Joined: Aug 28 2017
Member No: #3253
Location: Falkirk
This happened to my C6 around the 70K mile mark. At first it was an occasional issue, then became more consistent over about 5 months.

Replacing the sender cured it.

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