The Genuine BMW Cooling Fan Switch - 61318376440 is a high-quality replacement part for BMW vehicles. This switch is responsible for activating the cooling fan when the engine reaches a certain temperature, helping to prevent overheating and potential engine damage. It is a genuine OEM product, designed and manufactured to meet BMW's strict quality standards. This cooling fan switch is compatible with various BMW models and is easy to install, making it a reliable and convenient choice for maintaining the proper functioning of your vehicle's cooling system.