Genuine OEM Audi Control Line, part number 3G0131553C. This component is a critical part of the exhaust and turbocharger system, designed to transmit pressure signals or fluids for precise system control. It is typically found connecting various components within the exhaust gas recirculation or turbocharger wastegate assembly. Constructed from durable metal, this line is engineered for high-temperature and pressure environments. Using a genuine OEM control line ensures correct routing geometry, material integrity, and precise signal transmission, which are vital for optimal engine performance and emissions control.