Okay I havent been in town for a couple of weeks and jumped in my 2013 C-Max SEL and got a couple miles from the house and had the coolant over temp light pop up with a check engine light. Turned back around and grabbed my code reader which I got P1299. So next I turned on the eternal test mode on so I can watch the digital read out of the coolant temp. Start up the car at 88C. At 121C temp light comes on. Turn back around to head back to the house. Temp keeps to clime. it makes its way yo 131C then jumps to 205C. It stays at the 205C till I park it. I turn the car off then right back on. Coolant temp now is readying 119C. I am figuring I need to replace the thermostat but just want to double check before I get into that.
