Found this after more research, I have read so many threads on this matter, but this seemed to be a good starting point for most home fixers
https://www.jaguarforums.com/forum/x...s-diyer-33751/

 

Hello all, just a quick update... I did an oil change and when complete I re-sprayed all the front strut locations for leaks and nothing. I could not find any leaks..yet.. I haven't checked the valve block yet. The weather warmed up a bit and the car is manageable.. Slight drop after sitting overnight, I unlock the doors and the suspension raises up. Start her up and let it idle a little bit and suspension raises to full height. Not ideal, but I'm gonna keep checking until I can confirm the leak.

Thanks!