The invention relates to a vehicle steering system comprising a hydraulic actuator (13) for generating a steering movement, a rotary hydraulic valve (4) for hydraulically controlling the hydraulic actuator (13), a first electric drive unit (7) for actuating the hydraulic valve (4), and a first coupling element (8) for transmitting torque from the first electric drive unit (7) to the hydraulic valve (4) and preventing torque from being transmitted from the hydraulic valve (4) to the first electric drive unit (7).
