Door closer • comprising a door closer housing which has a housing axis, • comprising a closer shaft which is rotatably mounted on the door closer housing about a shaft axis of rotation extending transversely to the housing axis, and is provided, inside the door closer housing, with a cam disk which cam disk has a control surface extending along the shaft axis of rotation, • comprising a drive piston (8, 32) which is arranged in the door closer housing along the housing axis on one side of the closer shaft and is movably guided on the door closer housing along the housing axis, • comprising a closing force generator which applies force to the drive piston (8, 32) along the housing axis toward the closer shaft, the drive piston (8, 32) to which force is applied by the closing force generator being movable along the housing axis with a drive-piston-closing movement directed toward the shaft axis of rotation of the closer shaft, and in the process being supported on the control surface of the cam disk of the closer shaft, • comprising a damping piston which is arranged in the door closer housing on the side of the closer shaft remote from the drive piston (8, 32) and is movably guided on the door closer housing along the housing axis, the damping piston, due to the drive-piston-closing movement, being drivable with a damping-piston-closing movement against the effect of a counterforce delaying the drive-piston-closing movement, and • comprising an intermediate part which extends between the drive piston (8, 32) and the damping piston along the housing axis past the closer shaft, characterized in that the drive piston (8, 32), during the drive-piston-closing movement, is supported on the damping piston in the direction of movement via the intermediate part and thereby drives the damping piston with the damping-piston-closing movement. • comprising a door closer housing which has a housing axis, • comprising a closer shaft which is rotatably mounted on the door closer housing about a shaft axis of rotation extending transversely to the housing axis, and is provided, inside the door closer housing, with a cam disk which cam disk has a control surface extending along the shaft axis of rotation, • comprising a drive piston (8, 32) which is arranged in the door closer housing along the housing axis on one side of the closer shaft and is movably guided on the door closer housing along the housing axis, • comprising a closing force generator which applies force to the drive piston (8, 32) along the housing axis toward the closer shaft, the drive piston (8, 32) to which force is applied by the closing force generator being movable along the housing axis with a drive-piston-closing movement directed toward the shaft axis of rotation of the closer shaft, and in the process being supported on the control surface of the cam disk of the closer shaft, • comprising a damping piston which is arranged in the door closer housing on the side of the closer shaft remote from the drive piston (8, 32) and is movably guided on the door closer housing along the housing axis, the damping piston, due to the drive-piston-closing movement, being drivable with a damping-piston-closing movement against the effect of a counterforce delaying the drive-piston-closing movement, and • comprising an intermediate part which extends between the drive piston (8, 32) and the damping piston along the housing axis past the closer shaft,