An air-conditioning system includes a motor vehicle, in particular a passenger vehicle, and a drone. The drone is configured to be secured, in a secured state, to the motor vehicle and released from the motor vehicle. The drone is a flying drone that is driven using propellers. The drone, in the secured state, serves to air-condition the motor vehicle using the propellers by pushing air into the passenger vehicle through a roof of the vehicle. The roof defines openings that correspond to a propeller circumference that allow air, generated by the propellers, to flow into the passenger vehicle.