A connecting arrangement for a tubular fuel line which coming from the exterior extends through a passage in a cylinder head to a nozzle holder of an injection nozzle to feed fuel thereto, wherein at its front end towards the nozzle holder the fuel line has a pressure nipple which on its front side has a sealing surface and on its rear side a pressure receiving surface, wherein the connecting arrangement includes the following: a threaded cap element which coaxially surrounds the fuel line and is screwed in the region of the inlet opening of the passage so that it projects with an axially directed tube portion into the passage, a pressure transmission arrangement which is arranged in the interior of the passage, coaxially surrounds the fuel line and comprises a pressing tube coaxially surrounding the fuel line, on the axially outwardly end of which the axially inwardly directed end of the tube portion of the threaded cap element in the tightened condition exerts a force which is directed axially towards the nozzle holder said force being transmitted to the pressure receiving surface of the pressure nipple to press the sealing surface thereof against a counterpart sealing surface which is provided on the nozzle holder and which surrounds the mouth opening of a fuel flow passage leading further in the nozzle holder, and a sealing arrangement (28; 34, 35, 36; 40, 45) which seals off a first open space between the outside wall of the fuel line and the inside wall of the pressure transmission arrangement and a second open space between the outside wall of the pressure transmission arrangement and the inside wall of the passage towards the exterior of the cylinder head, characterised in that the sealing arrangement (28; 34, 35, 36; 40, 45) which is positioned completely in the interior of the passage forms part of the pressure transmission arrangement in such a way that, by the force which is exerted in axial direction by the threaded cap element upon being screwed in, at least one of the sealing bodies (30; 31; 37; 38; 39: 43; 45) thereof is by an axial compression expanded in radial direction to an extent that it bears sealingly against the inside wall of passage or the outside wall of line after the threaded cap element has been tightened. a threaded cap element which coaxially surrounds the fuel line and is screwed in the region of the inlet opening of the passage so that it projects with an axially directed tube portion into the passage, a pressure transmission arrangement which is arranged in the interior of the passage, coaxially surrounds the fuel line and comprises a pressing tube coaxially surrounding the fuel line, on the axially outwardly end of which the axially inwardly directed end of the tube portion of the threaded cap element in the tightened condition exerts a force which is directed axially towards the nozzle holder said force being transmitted to the pressure receiving surface of the pressure nipple to press the sealing surface thereof against a counterpart sealing surface which is provided on the nozzle holder and which surrounds the mouth opening of a fuel flow passage leading further in the nozzle holder, and a sealing arrangement (28; 34, 35, 36; 40, 45) which seals off a first open space between the outside wall of the fuel line and the inside wall of the pressure transmission arrangement and a second open space between the outside wall of the pressure transmission arrangement and the inside wall of the passage towards the exterior of the cylinder head, characterised in that the sealing arrangement (28; 34, 35, 36; 40, 45) which is positioned completely in the interior of the passage forms part of the pressure transmission arrangement in such a way that, by the force which is exerted in axial direction by the threaded cap element upon being screwed in, at least one of the sealing bodies (30; 31; 37; 38; 39: 43; 45) thereof is by an axial compression expanded in radial direction to an extent that it bears sealingly against the inside wall of passage or the outside wall of line after the threaded cap element has been tightened.