The Genuine BMW Ultrasonic-Sensor (Black 2) is a high-quality automotive sensor designed specifically for BMW vehicles. It is used to detect and measure distance using ultrasonic waves, allowing for precise and accurate readings. This particular sensor has a sleek black design and is part number 66209142217. It is a genuine BMW product, ensuring reliability and compatibility with your vehicle. This sensor is essential for various safety features such as parking assistance and collision avoidance systems. It is a crucial component for maintaining the performance and functionality of your BMW.