The Genuine BMW Ultrasonic-Sensor is a high-quality automotive component designed specifically for use in BMW vehicles. It is part number 66209321566 and is used to detect objects and obstacles in the vehicle's surroundings using ultrasonic waves. This sensor is a genuine BMW part, ensuring the highest level of compatibility and performance with your vehicle. It is a reliable and essential component for advanced driver assistance systems and parking assistance features. With its precise and accurate detection capabilities, this ultrasonic sensor helps improve safety and convenience while driving.