A modular air-conditioning apparatus for a motor vehicle , preferably for an electrically driven motor vehicle , comprising: a) at least two air-conditioning modules , which respectively comprise a refrigerant circuit having the following components: - a, preferably electrically driven, compressor ; - a first heat exchanger (W 1 ) for exchange of heat with the space outside the vehicle and/or with a component of an electric drive; - a first throttling device ; - a second heat exchanger (W 2 ) for exchange of heat with the space inside the vehicle and/or with a component of an electric drive; and - a valve device , comprising a plurality of valves (5 a -5 d ), for controlling a refrigerant flow within the refrigerant circuit , by means of which the first heat exchanger (W 1 ) can be connected in a first operating mode M 1 , for cooling the space inside the vehicle, upstream and in a second operating mode M 2 , for heating the space inside the vehicle, downstream of the second heat exchanger (W 2 ) in the refrigerant circuit ; and wherein the air-conditioning modules respectively comprise a module control device for the respective control of the valve device and/or of the compressor ; characterized by b) a central control device , which is designed to operate each of the air-conditioning modules selectively in the first operating mode M 1 or in the second operating mode M 2 independently of one another. a) at least two air-conditioning modules , which respectively comprise a refrigerant circuit having the following components: - a, preferably electrically driven, compressor ; - a first heat exchanger (W 1 ) for exchange of heat with the space outside the vehicle and/or with a component of an electric drive; - a first throttling device ; - a second heat exchanger (W 2 ) for exchange of heat with the space inside the vehicle and/or with a component of an electric drive; and - a valve device , comprising a plurality of valves (5 a -5 d ), for controlling a refrigerant flow within the refrigerant circuit , by means of which the first heat exchanger (W 1 ) can be connected in a first operating mode M 1 , for cooling the space inside the vehicle, upstream and in a second operating mode M 2 , for heating the space inside the vehicle, downstream of the second heat exchanger (W 2 ) in the refrigerant circuit ; and wherein the air-conditioning modules respectively comprise a module control device for the respective control of the valve device and/or of the compressor ; characterized by - a, preferably electrically driven, compressor ; - a first heat exchanger (W 1 ) for exchange of heat with the space outside the vehicle and/or with a component of an electric drive; - a first throttling device ; - a second heat exchanger (W 2 ) for exchange of heat with the space inside the vehicle and/or with a component of an electric drive; and - a valve device , comprising a plurality of valves (5 a -5 d ), for controlling a refrigerant flow within the refrigerant circuit , by means of which the first heat exchanger (W 1 ) can be connected in a first operating mode M 1 , for cooling the space inside the vehicle, upstream and in a second operating mode M 2 , for heating the space inside the vehicle, downstream of the second heat exchanger (W 2 ) in the refrigerant circuit ; b) a central control device , which is designed to operate each of the air-conditioning modules selectively in the first operating mode M 1 or in the second operating mode M 2 independently of one another. <EOS>