hey, i finally got time to manage the coding thing,
the options to disable the seat airbags are called : sidebag_links sidebag_rechts (set to nicht_aktiv)
the option to disable the seat occupancy sensor both contain "oc3" (set to nicht_aktiv)
both in ABG module of course. hope it helps someone. i now have fully functioning 911 seats in my 335i instead of ugly and unsporty leatherette stockers