Hello, I can see my see my sensor on a 2011, It is just inside the bumper air grill, as located in the above picture, I know it is the dashboard display sensor, because when sprayed with cooling spray, the dash reading drops. The other thing is the temp will read 40 if no sensor is wired in. ( we also have a i30 trophy with no sensor and the display read 40 ). So if a wire has broken or come loose it will also read 40. So if a new sensor doesn't solve the readout then trace all the wiring and check all plugs.