Hi I have had trouble with leaking coolant, now it seems to be holding water again but restricted performance message on dash, I have attached error codes and would appreciate any guidance of what to do next or look for?? Hoping for a simple fix...I'm hearing head gasket alot...!!!

Thanks in advance for all help

Swap the # 8 coil and plug and see if the code follows to the new position . Saw where there was a change in the numbering of the Jaguar V8 cylinders at some point ( the moderator Don B had this information ) and the code reader device may not reflect it . So you may have to try different swap configurations to see if the code changes to another cylinder . That would point to a coil or plug issue if you see a change in codes

You need to provide the year and model to get more info.