A swivel-sliding door system for a vehicle having at least one door leaf situated in the vehicle wall in the closed state, and situated on the outside in front of the vehicle wall in the open state while leaving a door opening free. A drive as well as transverse and longitudinal guides are provided which enable a movement at the at least one door leaf transverse relative to the vehicle wall and along the vehicle wall, wherein the drive and the transverse and longitudinal guides are combined into one complete operating unit that can be mounted as one whole in the vehicle and be coupled to the at least one door leaf. The operating unit comprises a frame which, in assembled condition, is fixedly connected to the vehicle and an assembly which is movably provided in the frame and which comprises a drive motor for the door leaf movements. The frame may include a girder extending along the door opening and end flanges provided at the ends of the girder, wherein the movable assembly is movable along the end flanges, transversely to the vehicle wall and the girder, for executing a plug movement and wherein the drive motor effects both the plug movement and the longitudinal movement of the at least one door leaf along the vehicle wall.