mine has it too... like you I have a leather wrapped dash
who knows maybe expansion of leather wrapped dash causes it, my e46 and e39 Touring and all my friends cars with the same vent haven't cracked
hrmm strange that my e46 and my wife's i6 e39, no cracking... also I've never noticed a crack in any NJ chapter CCA members e46s, but the vents are the same... so from my anecdotal experience it is only happening the v8s hrmm. anyone see it happen on an i6 model e46 or e39?I have the exact same crack in the same location with my sports interior. I guess the plastic dash warps too. I was thinking about replacing it but it seems like it'll happen again within no time.