Hi all I have 2011 transit connect ltd model with Diesel engine my issue I’m having is today I loss all internal heat through the matrix heater and then suddenly the temperature rose to maximum and warning signal to consult drivers manual and then 5 minutes later I had a dramatic loss of power from the engine so I pulled over and lifted the hood and on inspection I could see no water loss from heater tank or overflow and now was there any signs of hot water or steam coming from the radiator can anyone suggest what it could be obtained miles on clock is 125000 miles