Genuine OEM Audi Coolant Pipe, part number 057121597G. This pipe is a critical component of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures and prevent overheating. It is typically positioned on the left side of the engine bay. With a length of 0.24 meters, this genuine OEM coolant pipe ensures correct routing geometry, material resistance to heat and pressure, and a leak-free connection for reliable long-term performance.