Genuine OEM Audi Engine Coolant Hose, part number 04L121058S. This hose is designed to transfer coolant to specific engine components, such as a turbocharger or EGR cooler, to manage their operating temperatures. Its compact size, weighing approximately 0.021 kg and measuring 0.08 meters in length, allows for precise routing in tight engine bay spaces. Opting for a genuine OEM hose ensures the correct material properties and exact fit, which are critical for preventing leaks and maintaining the efficiency and longevity of the engine's thermal management system.