Does anyone know if car is likely to stop running if display shows empty fuel tank ,but it's full 

My 2015 XF 2.2 diesel runs out of fuel without warnings ,with the gauge reading 1/4 tank remaining and 165 to175 km range. This has happened 3 times this year. Keeping the fuel above that level  there is no problem, any ideas my local jag outlet admitted they have no idea ! They replaced the pump the first failure . To get started after the breakdown I put 5 litres of diesel and it starts , when fill the tank after the breakdown it takes a max of 45 litres! Anyone have a clue?

The fuel level sender sounds goosed

Hi, better late than never.

I had this problem, and with a search of YouTube found the answer.

You remove the cover under the offside rear seat, remove the lid and, floating loose inside the tank, is a two wire connector.

Give this a clean, reassemble and problem gone.

I'd never done it before and the whole job was done in under an hour. 

Hope someone can confirm --- 2009/10 3L diesel XF ,  filled with fuel and gauge did not change ! 

I have looked in various places and youtube and the general consensus is that its the connectors that are probably at fault, however removing the rear seat the access rubber? cap is covered with insulated carpet.  there is a pattern showing, I assume, where the cap is but the carpet as is is not removable.

My assumption is you have to cut out the circle to gain access -- can anyone confirm this ?

Thanks John

Ok Everyone-- problem solved ! went back and decided to investigate and found I could pull up the carpet, it was stiff and I had assumed it was glued down but its not --duh !