Disc brake of the self-energizing type, comprising: a) a hydraulic system internal in the brake, which is provided with a reservoir circuit and an expansion tank; b) a brake application device including at least one brake application cylinder for applying at least one brake lining (3, 3') in a direction towards a brake disc; c) at least one power transmitter unit supporting said at least one brake lining (3, 3') at a wedge angle on said brake application device; d) at least one cylinder receiving a tangential force for the change-over of the wedge angle, that comprises a differential receiver piston and which is operatively connected with said at least one power transmitter unit; e) an electromotive actuator that acts on said brake application device via said hydraulic system; f) a distributor cylinder for the amplification of the pressure, which comprises differential piston and which is disposed in series between said electromotive actuator and said brake application device; and g) a controller unit that is disposed between said cylinder receiving a tangential power and said electromotive actuator for control of the change-over of the wedge angle, h) wherein said disc brake comprises an adjustment device for adjusting the wear on the brake lining, with said adjustment device including a screw spindle that is operatively connected to said adjustment device for the tracking movement of said at least one brake lining (3, 3') and which is adapted for coupling to said electromotive actuator for driving, characterised in (i) that said adjustment device comprises an adjustment piston that is hydraulically adjustable in said differential receiving piston of said cylinder receiving a tangential power in the course of the tracking movement of said at least one brake lining (3, 3'). a) a hydraulic system internal in the brake, which is provided with a reservoir circuit and an expansion tank; b) a brake application device including at least one brake application cylinder for applying at least one brake lining (3, 3') in a direction towards a brake disc; c) at least one power transmitter unit supporting said at least one brake lining (3, 3') at a wedge angle on said brake application device; d) at least one cylinder receiving a tangential force for the change-over of the wedge angle, that comprises a differential receiver piston and which is operatively connected with said at least one power transmitter unit; e) an electromotive actuator that acts on said brake application device via said hydraulic system; f) a distributor cylinder for the amplification of the pressure, which comprises differential piston and which is disposed in series between said electromotive actuator and said brake application device; and g) a controller unit that is disposed between said cylinder receiving a tangential power and said electromotive actuator for control of the change-over of the wedge angle, h) wherein said disc brake comprises an adjustment device for adjusting the wear on the brake lining, with said adjustment device including a screw spindle that is operatively connected to said adjustment device for the tracking movement of said at least one brake lining (3, 3') and which is adapted for coupling to said electromotive actuator for driving, (i) that said adjustment device comprises an adjustment piston that is hydraulically adjustable in said differential receiving piston of said cylinder receiving a tangential power in the course of the tracking movement of said at least one brake lining (3, 3').