The rain sensor for Mercedes, code A9305400245 or 9305400245, is an essential component for the precipitation detection system of vehicles. It features a compact design, with a round shape, and is made from durable plastic material. The sensor is equipped with two side clamps for secure and precise attachment to the vehicle’s windshield. The approximate dimensions of the sensor are 5 cm in diameter, according to the measurement scale shown in the image. It is compatible with various models of Mercedes automobiles and ensures optimal operation of automatic wipers in rainy conditions.