Genuine OEM Volkswagen A-Pillar Reinforcement, part number 11A809210A. This part adds structural reinforcement to the A-pillar, enhancing occupant protection in the event of a collision. It is located at position 17 in the diagram. Constructed from high-strength steel, this reinforcement is crucial for maintaining structural integrity. The precise factory contour and bolt pattern of genuine OEM body panels ensure perfect integration into the vehicle's frame.