CLEANING DEVICE, MOTOR VEHICLE AND METHOD

A cleaning device for cleaning an outer surface of an optical instrument of a motor vehicle is provided. The cleaning device comprises a cleaning fluid supply for supplying to the outer surface, and a cover for temporarily covering at least the outer surface. The cleaning device is arranged to move the cover between a covering position and a releasing position in which the cover covers, or leaves uncovered, the outer surface, respectively. Upon moving from the covering position to the releasing position, or vice versa, the cover can be in successive intermediate positions covering a respective first portion and leaving uncovered a respective second portion of said outer surface. The cleaning device is arranged such that in at least one of the positions, the cleaning device defines a flow path between the cover and the outer surface to allow cleaning fluid to flow between them.