The invention relates to a media access control method for controlling the access of a subscriber station (13) of a bus system (11) to a first channel (15) of the bus system (11) jointly used by several subscriber stations (13), wherein in the method at least one enabling interval ([delta]T1, [delta]T2, [delta]T3, [delta]T4, [delta]T5) is specified for the subscriber station (13), within which enabling interval the subscriber station (13) has exclusive access to the first channel (15). In order to specify a media access control method, wherein large amounts of data can be transmitted relatively quickly and real-time conditions can be maintained when messages are transmitted by means of the bus system (11), it is proposed that the access to a second channel (19) used by several subscriber stations (13) be controlled using the method, wherein the second channel (19) is enabled only within the enabling interval ([delta]T1, [delta]T2, [delta]T3, [delta]T4, [delta]T5) during which access by the subscriber station (13) is enabled.