I would like to know if there is any way to be certain if my car is running OBD-I or OBD-II. I assume that I am running OBD-I since I have a 95 M3 (build date 6/94); however, I am unable to get any self diagnostic flash codes when I try to run the 'turn to on - depress accellerator five times' procedure. Nothing happens - which I understand is what happens with cars equipped with OBD-II.