Hi Piglet,
May be this will help.
https://www.bing.com/videos/search?q=2014+jajuar+xf+how+to+check+oil+level&docid=603512771351152374&mid=D55750
Turn on the ignition but do not start the engine. Ensure the parking brake is applied and the car is on level ground.
Select the OIL Level from the vehicle information screen.
The oil level will be displayed on the dashboard. You will see one of the following messages.
Critically Low: Add engine oil level immediately.
OK: Oil level normal.