Abstract: Provided is a disc brake with a system for checking the position in which brake pads are installed, and brake pads having, in both halves, notches defining a point of correspondence for fitting with respective projections formed in the housings for holding the brake pads, such that the notches in the two halves of each brake pad define spaces of equivalent volume, said notches in the halves of the brake pad being positioned at different distances (S1 and S2) from the central axis of the pad and/or said notches having a configuration which is different, at least, along the top edge.

Abstract: The invention relates to an electromagnetic valve arrangement, preferably for a pressure medium of a vehicle braking system, comprising an electromagnet arrangement which is coupled with a valve closing means which can be brought into several positions, a housing with a first, a second, a third, and a fourth connection of which, in a first position, the first and the second connection are in flow connection with each other, and the third and the fourth connection are blocked; in a second position, the first, the second, the third, and the fourth connection are blocked; in a third position, the first and the second connection are blocked, and the third and the fourth connection are connected with each other; and in a fourth position, the first and the third connection are connected with each other, and the second and the fourth connection are blocked.