A device for detecting the position of a wheeled vehicle while driving into a vehicle treatment facility, wherein near the floor at least one electrical switching device is arranged, which is activated when it is driven over by at least one wheel of the vehicle. An evaluation unit determines from the activation of the switching unit the instantaneous position of the wheel and thus of the vehicle. The switching device is configured as a contact grid in the form of a two-dimensional matrix, especially a contact mat, with a plurality of electrical switches, wherein an electrical switch is allocated to each point of the matrix, and wherein the evaluation unit is configured so that the activation of the switches can be detected individually by the evaluation unit.