Genuine OEM Audi Secondary Air Pump Control Line, part number 079145718A. This component is an integral part of the secondary air injection system, responsible for regulating pressure to ensure proper operation. It plays a key role in the vehicle's emissions control, helping to reduce harmful exhaust gases during cold starts. These lines are typically made from durable, flexible materials designed to withstand engine bay conditions and maintain airtight connections. Weighing approximately 0.04 kg, this is a lightweight but critical part. Using genuine OEM control lines ensures the correct material integrity, precise routing, and reliable pressure regulation, which is essential for maintaining emissions compliance and engine efficiency.