2012 Jag XJ water in fuel warning

[Carp mad]

Can anyone help- have got the dreaded "water in fuel" warning.... which came on when I went over a pothole.
I've looked all over the web, but getting more confused. How do I find the OEM number, I have called Jaguar dealer, who said they would find out and call me back & would you believe it ... they didn't - "twice".

Any Jag guru out there ?

[AdeTuono]

Part number is C2D6172.

https://www.britishparts.co.uk/jaguar-parts-c11/ja...

Ten minute job to fit. Get a new filter while you're at it.

I was plagued with the warning, but just changing this has sorted it all.