Genuine OEM Volkswagen Fuel Return Line, part number 5C0130314. This component is responsible for safely routing unused or excess fuel from the engine's fuel rail back to the fuel tank, helping to regulate fuel pressure and prevent overheating of the fuel. It is located within the fuel system, connected to the fuel filter assembly. With a length of approximately 0.28 meters, this line is designed for specific routing and fuel compatibility. Using genuine OEM ensures the correct material composition and precise routing geometry for safe and efficient fuel system operation.