Genuine OEM Audi Coolant Hose, part number 7E0122096F. This specialized hose is responsible for circulating engine coolant to and from the exhaust gas cooler, playing a vital role in regulating its temperature. Proper temperature management of the exhaust gas cooler is essential for efficient emissions control and engine performance. Made from high-quality, reinforced rubber, it weighs approximately 0.24 kg. Using a genuine OEM hose ensures the correct routing geometry, material resistance to heat and pressure, and a leak-free connection, which is critical for maintaining the integrity of the cooling and emissions systems.