An electric heating device comprises a housing with a partition wall which separates a connection chamber from a heating chamber for dissipating heat and from which at least one PTC heating device protrudes as a heating fin in the direction toward the heating chamber. The PTC heating device comprises at least one PTC element electrically connected to conductor tracks in the connection chamber. A temperature sensor is connected, in terms of data, to a control device and is accommodated in a sealed manner in a temperature sensor receptacle which is formed in a wall delimiting the heating chamber. The temperature sensor is accommodated in a sliding manner in the temperature sensor receptacle. A support prevents the temperature sensor from sliding out of the temperature sensor receptacle and/or directly plugs a temperature sensor contact element of the temperature sensor in the connection chamber into a printed circuit board.