Method for manufacturing a temperature sensor and temperature sensor and manufactures

The temperature sensor comprises a metal tube (20) provided with a bottom, a thermistor element provided with an electrode wire (40) from which extends a lead wire, the thermistor element is inserted in the metal tube, a terminal (70) electrically connected to the lead wire, a filling material charged into the metal tube, the metal tube, the thermistor element and the filling material being in the form of a structure one piece, and a housing (80), wherein said structure is mounted so that the end portion provided with a bottom of the metal tube (20) extends out of boitier.Application particular to the detection of the temperature of the exhaust gas of a motor vehicle.