A multifunctional cleaning tool for vehicles is provided. Which includes a housing, the housing is provided with a vertical wall body and a horizontal wall body. The vertical wall body abuts against the horizontal wall body and divides an interior of the housing into a first partition area, a second partition area, and a third partition area. The second and third partition areas are located on two sides of the vertical wall body and on the same side of the horizontal wall body, the first partition area is located on the other side of the horizontal wall body. The first partition area is provided with a brush component, a lower of the housing is provided with a first opening. The second partition area is provided with a cleaning component, an upper of the housing is provided with a second opening.

A pressure washer has a connection for a source of liquid; a high pressure pump; a main line by way of which liquid via the high pressure pump is conveyable from the connection to a spray opening of the main line; and a supplemental pump for adding an additive to the liquid. The pressure washer is conceived in such a way that the additive by way of the supplemental pump is able to be fed to the main line upstream of the high pressure pump.