I've been following this thread sonce I'm having the same problem on '04 X5 and checked everything posted here and still no luck. Thing is I can hear the fan blowing and there is condensation on the rear of the center console which leads me to believe its functional but seems the vents might be clogged or shut somehow. How hard is it to remove the storage unit above the vent? Would it be better work from the rear by the cup holders? Any help would be greatly appreciated. Sorry for the thread jack.