Genuine OEM Volkswagen Adjusting Washer, part number 001409210B. This washer serves as an adjusting component for gears within the transmission assembly, indicated as part 16 in the diagram. It is crucial for maintaining correct gear meshing and backlash. Made from durable steel, it withstands the stresses of transmission operation. Genuine OEM parts are manufactured to precise tolerances, ensuring proper function and longevity of the transmission.