I have a 2014 jaguar XF 3.0 AWD supercharged … so other night the engine overheating light came on but went right off … son next day drove it some I notice steam coming from under hood parked let it cool down but 45
mins den put a whole jug of antifreeze… most off if not all of hit straight out to da ground . I Got almost home which is 15 mins way it start loosing power and stem starts coming out again and they da vents. … so I cut the car tried to restart but wouldn’t and still won’t crack it trying to tho… my mechanic can checked in said it’s n limp mode and dat I had a busted water line or hose …. Has anyone else had dis problem? And he said the car is n LIMP MODE .. it’s tryin to crank but won’t turn over

 

you've most likely blown the rear heater pipe, or one of the plastic pipes

 

Why have you posted this 3 times?

Your biggest issue is that you most likely warped the heads on your engine and/or dropped valve seats. Driving for 15 minutes with no coolant will almost certainly do engine damage. Your mechanic needs to do a basic compression and leak down test to determine if the engine is toast before spending any more money on it.

 

You ran it dry, filled it and watched the coolant hit the pavement, then drove it another 15min anyway? You might have taught yourself an expensive lesson dude.

If it's at the mechanic and they've diagnosed it, what sort of help are you asking for here? Your mechanic has the car in front of them, they're going to be more help to you than the internet.