Genuine OEM Audi Rear Upper Bumper Guide, part number 4K9807889. This left-side component is designed to precisely guide and align the upper section of the rear bumper, ensuring it sits flush and securely against the vehicle body. Its accurate design is critical for maintaining the bumper's aesthetic integration and structural stability. Manufactured from robust plastic, a genuine OEM guide ensures exact fitment and long-term durability, which is essential for body panel integrity.