The Genuine BMW Holder Speed Sensor - 34516777252 is a small, durable component designed to securely hold and protect the speed sensor in a BMW vehicle. The speed sensor is an important part of the car's engine management system, as it measures the rotational speed of the wheels and sends this information to the engine control unit. This allows the car to accurately calculate speed and make necessary adjustments for optimal performance. The holder is made from high-quality materials and is specifically designed for use in BMW vehicles, ensuring a perfect fit and reliable performance. It is an essential component for maintaining the proper functioning of the speed sensor and ensuring the overall performance and safety of the vehicle.