Genuine OEM Audi Rear Bumper Guide, part number 4K5807453. This component is designed to precisely align and securely fasten the rear bumper to the vehicle's chassis. It is positioned on the left side of the rear bumper assembly. Weighing approximately 0.37 kg, this guide ensures the bumper maintains its factory-intended position. Using a genuine OEM guide guarantees the correct fitment, material strength, and impact absorption characteristics, which are crucial for safety and body panel alignment.