Abstract: The disclosure relates to a method for determining an electrical system state of at least one motor vehicle, wherein electrical state data of the at least one motor vehicle are detected on the vehicle side by means of a power distribution unit in the at least one motor vehicle, wherein the detected electrical state data are transmitted to a central server by means of a communications interface, wherein the transmitted electrical state data are compared on the server side with at least one reference value, and wherein, starting from a comparison result, the electrical system state of the at least one motor vehicle is determined and provided. The disclosure further relates to a system for determining an electrical system state of at least one motor vehicle, a motor vehicle, and a central server.