HEATING DEVICE

The heating device comprises: - a heating chamber; - a resistor located inside the heating chamber for heating a coolant, the resistor comprising a terminal passing through a wall (402A) of the heating chamber, the wall (402A) being provided with a positioning pin (902) projecting outside the heating chamber; - a printed circuit board; - a lead frame connected to the printed circuit board and to the terminal of the resistor; - an overmolding (714A) around the lead frame, the overmolding (714A) having a trough-hole (906) in which the positioning pin (902) is inserted; - a sleeve (914) inserted into the through-hole (906) next to the positioning pin (902); and - a fixing element (604) comprising a rod (916) and a head (918), the rod (916) being inserted into successively the sleeve (914) and a hole (904) of the positioning pin (902), so that the sleeve (914) is clamped between the positioning pin (902) and the head (918).