The Genuine BMW Control Unit Steering Wheel Electronics (E65 E66) - 61316958039 is a component used in BMW vehicles, specifically the E65 and E66 models. It is responsible for controlling various functions of the vehicle's steering wheel, such as audio controls, cruise control, and communication with other electronic systems. This control unit is an authentic BMW part and is designed to ensure proper functionality and compatibility with the vehicle. It is a vital component for the safe and efficient operation of the steering wheel and overall driving experience.