The invention relates to a device (2) for wiping a window of a motor vehicle, comprising a wiper blade (4) rotated by a drive shaft (6) which is arranged at the output of a motor assembly (8) capable of creating an alternating rotational movement of said drive shaft. The wiping device also comprises means for translating the motor assembly, and some of said drive means are supported by the drive shaft. In this way, it is the rotation of the drive shaft that translates the motor assembly. The invention also relates to a motor vehicle comprising such a wiping device and to a structural element, in particular a boot door, to which the device is attached.