The invention relates to a pneumatic system for a motor vehicle, said pneumatic system comprising a compressor unit, an accumulator unit and switch valves, via which the individual springs of the individual vehicle wheels are provided with pressurized air. A vent line is provided in the zone between the compressor unit and the switch valves. Said vent line opens into the atmosphere and can be blocked or released by a stop valve. The inventive system is further provided with devices that are used to limit the air mass flow discharged via the released vent line in certain intervals vis-à-vis an unlimited state in order to prevent undesired noises caused by the venting of the system. For example, a separately blockable high-pressure vent line can be connected parallel to a separately blockable main vent line, the free effective area of flow of the high-pressure vent line being smaller than that of the main vent line. Alternatively, a throttle element can be mounted in the vent line to limit the free effective area of flow of the vent line.