A filter element for filtering a fluid comprising a filter medium pack extending along a longitudinal axis (Z) from a first end (z1) to a second end (z2) and having: an axial inlet side at said first end (z1) for receiving unfiltered fluid, and a circumferential side forming a radial boundary of the filter medium pack; and wherein said filter medium pack is configured for insertion into a housing so as to enclose or partly enclose said circumferential side of the filter medium pack with an outer sidewall of the housing ; characterized in that said filter element comprises a bridge seal arrangement for sealingly bridging a gap between the radial boundary of the filter medium pack and the outer sidewall of the housing, said bridge seal arrangement having: a first collar-shaped portion comprising a first circumferential sealing surface sealingly coupled to said circumferential side of the filter medium pack or sealingly coupled to a border of said axial inlet side ; and a second collar-shaped portion coupled with said first collar-shaped portion , and wherein said second collar-shaped portion comprises a second circumferential sealing surface configured for encircling and sealingly cooperating with the outer sidewall of the housing; wherein said bridge seal arrangement is configured for allowing a movement of said second collar-shaped portion with respect to said first collar-shaped portion from an un-sealed position to a sealed position and vice-versa; and wherein said bridge seal arrangement is configured such that said second circumferential sealing surface is forming a radially outward-facing circumferential surface and a radially inward-facing circumferential surface when said second collar-shaped portion is positioned in respectively said un-sealed and said sealed position. an axial inlet side at said first end (z1) for receiving unfiltered fluid, and a circumferential side forming a radial boundary of the filter medium pack; and wherein said filter medium pack is configured for insertion into a housing so as to enclose or partly enclose said circumferential side of the filter medium pack with an outer sidewall of the housing ; a first collar-shaped portion comprising a first circumferential sealing surface sealingly coupled to said circumferential side of the filter medium pack or sealingly coupled to a border of said axial inlet side ; and a second collar-shaped portion coupled with said first collar-shaped portion , and wherein said second collar-shaped portion comprises a second circumferential sealing surface configured for encircling and sealingly cooperating with the outer sidewall of the housing; wherein said bridge seal arrangement is configured for allowing a movement of said second collar-shaped portion with respect to said first collar-shaped portion from an un-sealed position to a sealed position and vice-versa; and wherein said bridge seal arrangement is configured such that said second circumferential sealing surface is forming a radially outward-facing circumferential surface and a radially inward-facing circumferential surface when said second collar-shaped portion is positioned in respectively said un-sealed and said sealed position. <EOS>