Flat-filter filter element having at least two filter-material bodies, filter system, and use of a flat-filter filter element

A flat-filter filter element for filtering a fluid, the flat-filter filter element comprising:

• at least two areal filter medium bodies arranged in an axial direction adjacent to each other and arranged to be flowed through by the fluid sequentially in the axial direction, wherein the at least two areal filter medium bodies each have an outer circumference;
• a common circumferential lateral strip arranged to frame the at least two areal filter medium bodies at their respective outer circumference;
• wherein the at least two areal filter medium bodies include a downstream filter medium body and an upstream filter medium body;
• wherein the common circumferential lateral strip comprises a protrusion section that extends from the downstream filter medium body in the axial direction to the upstream filter medium body;
• a circumferential molded element arranged at the upstream filter medium body;
• wherein the common circumferential lateral strip is embedded at least partially in the circumferential molded element arranged at the upstream filter medium body.