Genuine OEM Volkswagen Headlight Bulb Retaining Ring, part number 3C0941109. This component is crucial for securing the headlight bulb firmly within its housing. It ensures the bulb remains in the correct position for optimal beam pattern and prevents vibration-induced damage. Made from durable plastic with integrated metal clips, it weighs approximately 0.01 kg. Using a genuine OEM retaining ring guarantees the precise fit and tension required to maintain bulb integrity and consistent lighting performance.