Hydraulic vehicle brake system having a service brake which can be actuated by muscle force and having a device for regulating the wheel slip

A hydraulic vehicle brake system, having a service brake that which can be actuated by muscle force and having a device for regulating wheel slip, comprising a master cylinder, at least one wheel brake, and a hydraulic unit connected between the master cylinder and the wheel brake, the hydraulic unit having electromagnetically triggerable multi-way valves, at least one pump, a drive for the pump, at least one reservoir for supplying the pump with pressure fluid, an electric motor actuating the drive for the pump, and an electronic control unit for triggering the multi-way valves and/or the electric motor to suit demand, wherein the at least one pump is a self-aspirating pump;

• the at least one reservoir has a separator element which divides a first storage chamber, which can be filled via at least one inlet and emptied via at least one outlet separated from the inlet, from a second storage chamber, and the separator element is disposed freely movably between two end positions and in one of the two end positions the separator element blocks a pressure fluid-conducting connection of the inlet with the outlet.