System for establishing automatic access to a fuel pump comprising at least one decentral control unit (3), said control unit (3) comprising means which regulate the fuel pumps (7) associated with a service station, and a central control unit (2), at least one of the control units (2, 3) comprising means which are activated by wireless signals transmitted from a mobile telephone, said means comprising central means for the linking together of a first unique code (B) belonging to the mobile telephone (1) with the identification number of the same telephone, and the linking together of number and/or code (B) with the data lying in the unit, and that the decentral control unit comprises decentral means for the linking together of a second code (C), which is unique for the fuel pump and which is entered via the telephone, with the status associated with the pump, and which are activated by the wireless signals transmitted from the mobile telephone. There is hereby achieved a system with extra great security, and the system does not require the installation of card units at each individual station. The delivery and production of cards is also avoided.