Genuine OEM Audi Engine Heating Hose, part number 9J1815568D. This molded hose is a vital component of the vehicle's heating and cooling system, responsible for circulating heated coolant to the heater core for cabin warmth and assisting with overall engine temperature regulation. Its complex, pre-formed shape ensures precise routing and fitment within the engine bay, connecting various components of the heating circuit. Weighing approximately 0.526 kg, this hose is constructed from durable, heat-resistant materials. Choosing a genuine OEM hose guarantees the correct material composition, pressure resistance, and exact routing geometry, preventing leaks and ensuring efficient heating system operation.