One of the iPhone's bugs is the WiFi/Bluetooth interference. If WiFi is on you may get significant interference with the bluetooth connection. Turn off WiFi and bluetooth works perfectly. I hope Apple is able to fix this one with a firmware or software update. For now it is a minor irritant.
Originally Posted by commander_crash
I was having some issues where every other word from the person who called would get sort of garbled. The dealer said it's a wifi issue so I'll try turning that off for next time. Anyone else having issues with wifi and sound quality over the bluetooth?
2013 Mercedes Benz SL550
2012 BMW K1600GT