Heating/cooling device for a housing particularly for a throttle valve nozzle

A heating/cooling device (2) for a sensor housing (1) of a throttle valve nozzle of an internal combustion engine has, for the connection of a medium-conducting channel (3), a tube (9) made of plastic and releasably fastened in the housing (1). The tube (9) is prestressed axially against the housing (1) and sealed radially with respect to it. Furthermore, the tube (9) has a part of a quick coupling (11) for the connection of a medium-conducting line (10).