Genuine OEM Audi Secondary Air Pump, part number 079959231M. This pump is an essential part of the vehicle's emissions control system, designed to inject fresh air into the exhaust gases. This process is vital for the efficient operation of the catalytic converter, helping to reduce harmful pollutants. It is typically located within the engine bay as part of the air injection assembly. Weighing 1.627 kg, this pump is manufactured to precise factory standards. Using a genuine OEM part guarantees correct air flow, reliable operation, and continued compliance with environmental regulations.