Genuine OEM Volkswagen Power Steering Expansion Hose, part number 2H3422893C. This hose connects the power steering vane pump to the steering gear, allowing for fluid expansion and circulation. It is located at position 9 in the diagram. The hose is made of durable rubber material. Genuine OEM power steering hoses are designed to withstand high pressures and temperatures, ensuring reliable fluid circulation and preventing leaks within the power steering system.