The product is an 8K1820043T heater AC dual climate control unit with heated seats for a 2013-2016 Audi A5 RS5. It is a genuine Audi part made of black plastic, designed to suit the AUDI RS5 model. The control unit is interchangeable with part number 655-58821 and has a manufacturer part number of 8K1820043T. This specific unit is for the left side of the car and has a stock number of QK06. It is guaranteed to provide optimal performance and comfort for your Audi vehicle.