Worth buying from a quality dealer. I bought a 2002 X5 from a BMW dealer just before Christmas. It was a BMW-CPO car. My Navigation unit in the rear was acting up. They replaced the whole unit at no charge, even thoough it states that the nav unit is not covered. They did not even charge me the $50.00 fee. In addition they gave me a 2006 5-series as a free loaner for the day. The system now works perfectly.