Appaently here in the US the X5 did not come with back-up cams nor was it an option. My local dealership was aware of a euro part number but didn't have way of ordering it. They told me that when ordering a euro only part number that it shows back ordered and never ships. Just recently within the last month there was a bulletin released to the US BMW dealers about a back-up cam kit for the X5 and X3.