A dosing device of a dosing system comprising a cartridge for flowable washing or cleaning agents, which cartridge has a plurality of chambers (3a, 3b, 3c) for receiving preparations of a washing or cleaning agent in separate spaces, which preparations are different from one another, and comprising a dosing device that can be coupled to the cartridge, the dosing device comprising: an energy source, a control unit, a sensor unit, at least one dosing chamber which, when the dosing device is combined with a cartridge, is connected so as to be in communication with at least one of the cartridge chambers (3a, 3b, 3c) of the cartridge, the dosing chamber comprising an inlet for the inflow of washing or cleaning agent from a cartridge chamber (3a, 3b, 3c) and an outlet for the outflow of washing or cleaning agent from the dosing chamber into the environment characterized by an actuator/closing element combination comprising an actuator and a closing element, the actuator being connected to the energy source and to the control unit such that a control signal from the control unit effects an actuation of the actuator, the closing element being coupled to the actuator in such a way that the closing element can be moved by the actuator into a closed position and into a passage position (dispensing position), it being possible for at least the outlet of the dosing chamber to be closed or unblocked by the closing element, the closing element being designed as an open/close valve element and the actuator being designed in such a way that, when actuated by an appropriate pulse, it occupies one of two final positions in an optionally specifiable manner, and, without actuation, maintains the achieved final position in a stable manner, and such that the actuator/closing element combination therefore forms a bistable open/close valve that is actuated by pulses. an energy source, a control unit, a sensor unit, at least one dosing chamber which, when the dosing device is combined with a cartridge, is connected so as to be in communication with at least one of the cartridge chambers (3a, 3b, 3c) of the cartridge, the dosing chamber comprising an inlet for the inflow of washing or cleaning agent from a cartridge chamber (3a, 3b, 3c) and an outlet for the outflow of washing or cleaning agent from the dosing chamber into the environment characterized by an actuator/closing element combination comprising an actuator and a closing element, the actuator being connected to the energy source and to the control unit such that a control signal from the control unit effects an actuation of the actuator, the closing element being coupled to the actuator in such a way that the closing element can be moved by the actuator into a closed position and into a passage position (dispensing position), it being possible for at least the outlet of the dosing chamber to be closed or unblocked by the closing element, the closing element being designed as an open/close valve element and the actuator being designed in such a way that, when actuated by an appropriate pulse, it occupies one of two final positions in an optionally specifiable manner, and, without actuation, maintains the achieved final position in a stable manner, and such that the actuator/closing element combination therefore forms a bistable open/close valve that is actuated by pulses.