Hi Fairly new to the forum, have a 2006 Jag xj8 vdp. Low coolant message came on, Coolant tank showed level ok but decided to add coolant and heard it running out as I was pouring it in.. Looked underneath the car and saw it running
out all the way to the back. could this be a hose or something nasty ?

 

OOPS.

My best gues would be a hose, or one of those silly "plastic" "T" things the V8 used.

I suggest a re-ask in the XJ8 (X350) Tech Section, they will know.

Good luck.