Genuine OEM Audi Underbody Heat Shield, part number 8K0804173D. This protective panel is designed to shield sensitive components, such as fuel lines, wiring, or interior floorboards, from the intense heat generated by the exhaust system or other hot engine parts. It is positioned on the vehicle's underbody, secured by mounting points. Weighing approximately 0.34 kg, this heat shield is typically made from stamped aluminum or steel with insulating layers. Choosing a genuine OEM heat shield ensures the correct contours, mounting points, and material composition for effective thermal insulation and long-term durability, preventing heat-related damage to critical systems.