Genuine OEM Audi Secondary Air Pump, part number 07K959253D. This pump is a component of the vehicle's secondary air injection system, which helps to reduce emissions during cold starts by supplying air to the exhaust manifold. It is located in the engine bay. The pump weighs 1.133 kg. Genuine OEM secondary air pumps are manufactured to exact tolerances, ensuring proper air delivery and system efficiency for emissions compliance and optimal engine operation.