Genuine OEM Audi Rear Foam Filler Piece, part number 4M8807574. This molded foam component is designed to provide cushioning or fill a specific void within the vehicle's rear body structure, potentially near the shock absorber mounting area. It is positioned on the right side. Weighing approximately 0.413 kg, this foam piece ensures proper fitment and contributes to the structural integrity and sound dampening of the assembly. Using a genuine OEM foam piece guarantees the correct density and shape for optimal performance.