Genuine OEM Volkswagen Expansion Hose, part number 2H2422893G. This hose allows for fluid expansion and contraction in a hydraulic system, connecting the vane pump to the steering gear. It is located at position 9 in the diagram. The hose has a length of 0.71 meters and a width of 0.32 meters. Genuine OEM hoses are manufactured to exact specifications to ensure proper fitment and reliable operation within the hydraulic system.