Genuine OEM Audi Coolant Hose, part number 1C0122101BA. This flexible hose is designed to circulate engine coolant, maintaining optimal operating temperatures and preventing overheating. It connects within the engine cooling system, as shown in the diagram. Weighing 0.39 kg and measuring approximately 0.42 meters in length, it is made from durable, heat-resistant rubber. Choosing a genuine OEM coolant hose ensures the correct routing geometry, material composition, and pressure resistance for reliable, leak-free performance.