A wiper for a wiper system for a vehicle is disclosed. The wiper includes at least one wiper blade carried by a support and configured to wipe a glazed surface of a vehicle. The wiper includes a spoiler configured to be connected to a cleaning system distributing cleaning liquid. The spoiler includes a body in which a spray manifold for the cleaning liquid is provided. The spray manifold is configured to be connected to the cleaning system. The spray manifold extends in a main direction of extension of the spoiler and includes at least one row of spray holes. At least one of the spray holes includes a cleaning liquid passage section of between 0.002 mm.sup.2 and 0.070 mm.sup.2 in cross section. A number of spray holes per row is between 1 and 60 over a 10 mm portion of the spoiler.

A wiper of a wiper system for a vehicle is disclosed. The wiper includes at least one wiper blade carried by a support and configured to wipe a glazed surface of a vehicle. The wiper includes a spoiler configured to be connected to a cleaning system distributing cleaning liquid. The spoiled includes a body in which a spray manifold for the cleaning liquid is provided. The spray manifold is configured to be connected to the cleaning system. The spray manifold extends in a main direction of extension of the spoiler and comprises at least one row of spray holes. at least one of the spray holes includes a cleaning liquid passage section. The spray holes of a row are spaced apart along the main direction of extension of the spoiler.