I haven't had any issues on both my wife's 2011 X3 and my 2007 ///3 with CIC retrofit. I've got full compliment of functionalities on both cars. May be try reconnecting as well as resetting your iphone 5. Good luck.
E92 M3 2007 - ///PE with Test Pipes and BPM Stage II; CF Interior & Splitters; CIC with Connected Drive