Genuine OEM Audi Activated Carbon Filter Heat Shield, part number 4M4201782A. This metal plate is designed to protect the activated carbon filter from excessive heat, which is crucial for the proper functioning of the emissions system. It is positioned beneath the activated carbon filter assembly. Weighing 0.237 kg and measuring 0.28m in length. Using a genuine OEM heat shield ensures the correct material, shape, and thermal properties for effective heat dissipation and protection of sensitive components.