Left and right rearview mirror turn signal lamps for MercedesBenz CClass W203, S203, C203 (saloon and estate). Part numbers A2038201521 and A2038200121. Key features and benefits Clear lens design for improved signaling visibility and a cleaner, modern look on your vehicle. Low power consumption with brighter, clear safety signaling; energy efficient and designed for a long service life. Waterproof construction suitable for all weather conditions, helping other road users recognize the signal from a distance. Enhances traffic safety by clearly indicating the vehicle's turning direction; uses rolling and flashing signaling to attract attention and reduce risk. Compatibility and performance Models: MercedesBenz CClass W203, S203, C203 Configurations: fits both left and right rearview mirrors; suitable for saloon and estate versions Materials: waterproofrated construction with a clear lens for enhanced visibility Voltage and efficiency: designed for low power consumption while maintaining bright, visible signals Practical use scenarios Daily urban driving: clearer signaling improves communication with other drivers in stopandgo traffic. Night driving: bright, clear signals improve visibility in lowlight conditions for added safety. Adverse weather: waterproof design maintains signal clarity during rain, snow, or fog, helping following drivers anticipate turns earlier. Notes For MercedesBenz CClass W203/S203/C203, including both left and right rearview mirror applications. Compatible with part numbers A2038201521 and A2038200121.