The product is an OEM Body Control Module Unit BCM Computer specifically designed for the 2008 - 2010 BMW 535i. Manufactured in Germany, this performance part is a direct replacement with the manufacturer part number 9221109. Interchange part numbers include 532256873, 0944639, and 6135 9221109-01. This Certified BMW Part ensures quality and compatibility for your vehicle, providing reliable electrical control for optimal performance.