The Genuine Mercedes Radiator Support Access Cover Cap is a plastic cover designed to fit over the radiator support access opening on Mercedes vehicles. It is specifically designed for the 204 model series, and has a part number of 2045050188. This cover serves as a protective barrier for the radiator support, helping to prevent debris and other contaminants from entering the engine compartment. It is an authentic Mercedes product, ensuring high quality and precise fit for your vehicle.