Abstract: A brake system for a motor vehicle comprises an electronic control unit with a control circuit board a hydraulic block through which hydraulic channels extend and which has a brake cylinder bore a piston which is displaceable in the brake cylinder bore by a brake pedal, and a pedal travel sensor with a sensor circuit board. The pedal travel sensor is configured to detect the position of the piston in the brake cylinder bore. The brake system furthermore has a contact spring system that connects the control circuit board to the sensor circuit board, for transmission of signals, in non-destructively detachable fashion. Here, the contact spring system has electrical contact elements which bear in individually preloaded fashion against electrical contact pads of the control circuit board and/or of the sensor circuit board.