Genuine OEM Volkswagen Bonnet Insulation Mat, part number 5K0863831G. This essential component is fitted to the underside of the vehicle's bonnet (hood) to effectively reduce engine noise and dampen vibrations, contributing to a quieter cabin environment. It also helps to insulate against engine heat, protecting the bonnet's paint finish and preventing heat transfer into the passenger compartment. The mat is a molded fibrous material, weighing approximately 1.14 kg, and measures 1.235 m in length. Choosing a genuine OEM bonnet insulation mat ensures precise contours for a perfect fit, proper attachment points, and materials engineered for optimal sound and thermal damping performance.