After several phone calls the local BMW dealer has agreed to take the car back into service to conntinue searching for the problem. The Service Manager said he contacted a BMW regional engineer for assistance so we'll see what happens - I'll keep you posted.
PCD 2011 X5 35i Premium, Deep Sea Blue, Black Leather, Convenience Package, Cold Weather Package, Technology Package, Premium Radio, Third Row Seats, Side View Cameras
PCD 2008 X5, 3.0, Monaco Blue, Black Leather, Premium Package, Cold Weather Package, Technology Package.
Retired ED 2006 530i, Monaco Blue, Grey Leather.
Retired 2004 330i Performance Package, Sterling Silver, Black Leather.