Genuine OEM Volkswagen Quick Release Coolant Hose, part number 4M0122449G. This hose is a vital component of the engine cooling system, responsible for transporting hot coolant between various engine components and the radiator. It features a quick-release coupling for secure and efficient connection. Genuine OEM hoses are constructed from high-quality, heat-resistant materials and designed for precise routing and pressure integrity, preventing leaks and maintaining optimal engine operating temperatures.