i've own the car for half a year and didnt know how to set the obc thing till today. i have the 13 button? version with everything. i just found a user manual from a 325e parts car and i assume the instructions are the same for setting the obc in the m3 as well. anyways on to the problem. i grew up in metric (canada) and i got that to work just fine in metric. but is there a way to show metric units but 12hr AM/PM on the clock instead of 24hr? i've been playing around with it and no luck.