The invention relates to a windscreen wiper system, particularly for a motor vehicle. The system comprises a wiper blade (4) hinged to a drive arm (1) via an adaptor (2) connected to the arm (1) and to a hydraulic connector (3), which in turn is connected to the blade (4) and comprises at least one inlet coupling (6) designed to be coupled to a cleaning and de-icing fluid feed (5). The system also comprises a rigid joining part (7, 8), one end of which is coupled to the inlet coupling (6), and the other end of which is intended to be coupled to the fluid feed (5). In this way, the connection between the fluid feed (5) and the connector is made secure and reliable. In addition, the joining part provides an offset which makes connecting and disconnecting easier for the user, particularly when the user wishes to change a worn blade, and enables the whole of the connection to be concealed more easily and then given a more attractive appearance.