Genuine OEM Volkswagen Rear Tail Light Adjustment Element, part number 5N0945167B. This small, precision-engineered component is crucial for correctly aiming and aligning the rear tail light assembly, ensuring optimal light distribution and compliance with regulations. It is installed within the rear tail light housing. Made from durable plastic and featuring a sealing O-ring, it weighs approximately 0.0075 kg and measures 0.11m in length. Using a genuine OEM adjustment element guarantees the precise thread pitch and dimensions required for accurate light adjustment, preventing improper beam patterns or loose tail light assemblies.