2016 328i X-Drive owner. Today, started car and after acknowledging the disclaimer using controller knob, “Starting Navigation” appeared on iDrive screen and would not go away. I could use controller knob and buttons, but all access to Sat Radio, phone, Navigation, etc ..., all disabled. Voice commands only worked for AM or FM radio stations. Car did recognize my phone but my contact list and music would not load. Got the car as CPO on 6/30/2017 with 11,000 miles. Bizarre problem. Have appt at dealer Tues AM. Very concerned — what could cause this almost complete loss of functionality???