[Vulcan]

Hi Nick,
The fault with the fuel level sensor is a very common one on a lot of Ford model cars, Ford owned makes (at the time) and that includes Jaguars. I visit a Jaguar specialist regularly as I have the Ford dealer IDS diagnostic tool, and most of the Jaguars that Ford had anything to do with, throw up this error code (along with many others that you won't be aware of) and simply clearing them from the memory is sufficient. I find that a lot of issues are simple remedies such as a bad connection and some WD40.
However, due to the canbus electrical systems, a fault such as yours could be down to a bad connection in a completely different system such as the ABS for example.
I am sure this will be a minor inconvenience to you rather than a major fault so don't give her up.

 

[Vulcan]

I have had no experience of working on your model car but on many other makes and models, the gauge can be calibrated or altered using the diagnostic tool. Obviously when a new component such as a fuel tank or sender is fitted then a calibration would be done using exact amounts of fuel etc. Wonder if it is possible to recalibrate yours? Will be interesting to know what the dealer does.