I have a new 2013 335xi sedan equipped with iDrive. I have most of the iDrive functions figured out. However, Connected Drive and BMW Apps are still somewhat of a mystery. The BMW NA web site is of no help; it's full of advertisements for Connected Drive features, but there is nothing that actually tells you how to make it work. I have downloaded the BMW Connected app to my iPhone 4S. This app is required to be able to use the BMW Apps feature of Connected Drive. After I connect my iPhone to the USB port in the center armrest and start the BMW Connected app on the iPhone, the BMW Apps appear in the Connected Drive menu. Some of the BMW apps work without any problems. Now for the problems. The first problem is with the Calendar app in the BMW Apps menu. The Calendar app is supposed to display the calendar events that are on the iPhone. This doesn't work for me. All days show "No appointments". When I follow the same procedure with the iPhone of the iDrive guru at my local dealer, his calendar events do show up. The second problem is with the Messages feature in the Connected Drive menu. (Note: this is not a "BMW App"; it's just one of the selections in the Connected Drive menu.) This feature is supposed to display messages that are on the iPhone. This also doesn't work for me. We didn't try this with the iDrive guru's iPhone, but he said it works fine for him in his BMW. So, if anyone has encountered problems with accessing iPhone calendar events and messages with Connected Drive and figured out how to make these features work, please let me know. Thanks.