Filter element of a filter, heating cage for a filter element and a method for producing a filter element

A filter element of a filter for fluid, comprising

• a filter medium formed as a filter medium hollow body which is circumferentially closed about a central element axis of the filter element;
• an electric heating jacket arranged on a radially outer periphery of the filter medium hollow body, the electric heating jacket enclosed on at least part of the radially outer periphery of the hollow body and elongated in the direction of the element axis;
• a fluid-permeable supporting hollow body formed as a heating cage circumferentially enclosing the radially outer periphery of the filter medium hollow body and extends along a portion of the element axis;
• wherein the electric heating jacket is arranged in or arranged on a radially inner side of the fluid-permeable supporting hollow body;
• wherein the supporting hollow body has at least two supporting body shells, each forming a separate portion of a radially outer circumference of the supporting hollow body, the at least two supporting body shells closable together and engage together, so as to circumferentially close the supporting hollow body about the radially outer periphery of the filter medium hollow body;
• wherein the at least two supporting body shells, when closed together, are detachably engaged such that the fluid-permeable supporting hollow body can later be opened for removal or replacement of the filter medium hollow body or the electric heating jacket, and then the at least two supporting body shells closed together and engaged together to circumferentially close about the radially outer periphery of the filter medium hollow body.