Genuine OEM Audi Engine Coolant Water Return Hose, part number 06M145947G. This hose is an essential component of the engine's cooling system, responsible for returning cooled water to the engine to regulate its temperature. It is positioned on the left side of the engine assembly. Weighing approximately 0.054 kg, this hose is manufactured from high-quality, heat-resistant materials. Choosing a genuine OEM hose ensures the correct internal diameter, material flexibility, and connection points for a secure, leak-free, and efficient cooling system.