The Genuine BMW Switch (Gruen) - 61318365300 is a green-colored switch used in BMW vehicles. It is a genuine OEM (Original Equipment Manufacturer) product, meaning it is made by the same company that produced the original part for the vehicle. This switch is used for various functions, such as turning on/off lights, adjusting the wipers, or controlling other electrical components in the car. It is a high-quality and reliable product that is designed specifically for BMW vehicles.