Genuine OEM Audi Headlight Bulb Cover Cap, part number 4K0941158. This cap is designed to protect the headlight bulb and its internal housing from environmental elements such as dust, dirt, and moisture. It is specifically for the right side of the vehicle's headlight assembly. This lightweight component ensures the longevity and proper functioning of the headlight system. Using a genuine OEM cover cap guarantees a perfect seal and fit, maintaining the integrity of the headlight unit and preventing premature bulb failure or internal damage.