The Genuine Mercedes Windshield Wiper Arm Cap - 2518240149 is a replacement part for Mercedes vehicles. It is designed to cover and protect the wiper arm mechanism on the windshield. This cap is made from high-quality materials and is an exact fit for the original wiper arm cap on Mercedes vehicles. It is easy to install and helps to maintain the overall appearance of the vehicle. This product is an authentic Mercedes part and is recommended for use in maintaining the performance and aesthetics of the vehicle.