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.
2007 E92 6MT - Silverstone II with Extended Black and /// Performance Exhaust and BPM Sport Tune
2011 F25 X3 3.0d