The product is a VW Audi Seat Skoda 2.0TDI CRLB engine control unit (ECU) with the part number 04L907309R. This ECU is specifically designed for vehicles from the VAG brand, ensuring compatibility and optimal performance. Suitable for car parts and accessories, this engine control unit plays a crucial role in regulating and controlling the engine functions of the vehicle, making it an essential component for maintaining the overall efficiency and reliability of the vehicle.