One problem related to noises during shifting has been reported for the 2006 BMW 750. The most recently reported issues are listed below.
Contact owns a 2006 BMW 750li. The contact was approaching a stop signal while driving approximately 30 mph and the transmission began to downshift with a loud banging noise. The vehicle was taken to an authorized dealer, who stated that the transmission would need to be replaced. The vehicle had not been repaired. The manufacturer was notified of the problem and stated that the service warranty expired. The approximate failure mileage was 60,000. The VIN was unavailable.