Genuine OEM Audi Secondary Air Pump Kombi Valve, part number 022131101G. This valve plays a vital role in the vehicle's emissions control system by regulating the flow of fresh air into the exhaust manifold during cold start conditions. This process helps to rapidly heat the catalytic converter, reducing harmful emissions. Weighing 0.233 kg, this genuine OEM valve ensures precise air control and reliable operation, which is essential for maintaining optimal engine performance and meeting stringent emissions standards.