Glow plug with pressure sensor

The plug has a heating component (1) positioned in a plug body (2). A pressure sensor (3) is positioned on a heating component support (1a) that is rigidly bonded to the heating component within a cap (4) that is rigidly bonded to the plug body. The heating component support and a pressure sensor system comprise a system that has axial play within the cap. A floating mounting of the pressure sensor is provided on the plug.