coils #1,#3,#5 keep shorting out. smell antifreeze but no leaks

Hello, Use the factory coils. If you are replacing the coils with aftermarket coils, you will not get the revisions that Jaguar has made to correct known issues. In your case, the coils are not sealing to the valve cover, and allowing water in. The only alternative to that theory is that the cylinder head is cracked, allowing antifreeze into the spark plug well. If you have rust built up on the spark plug threads (part inside the engine), you likely have a bad head gasket, cracked head or block. I would like to thing they are becoming fouled by water leaking past the seals at the top of the coil. If you post pictures online, drop the URL here so I can see what you have going on, otherwise, here are some local certified shops who will diagnose: http://repairpal.com/jaguar-within-10-miles-of-gulf-breeze-florida-32563

Cylinders 1 - 3 - 5 are located along firewall side of engine bay .. You stated loosing some coolant with antifreeze smell .. Make sure there is not a coolant hose ABOVE that cylinder bank at some point that may leak coolant onto the cover .. Suggest removing the 'decorative' engine cover for awhile to aid in quick visual testing after each trip. (Ok to operate without cover in place!) .. When car is parked after trip, raise hood and LOOK around! .. Sometimes the driver/owner can discover the problem much more easily and quickly than mechanic due to having vehicle present for frequent testing .. Coolant leaks can be 'very elusive' at times . Good luck with it!