Genuine OEM Volkswagen Hood Soundproofing, part number 3G8863831A. This sound-deadening material is designed to be fitted to the underside of the engine hood. Its primary function is to absorb engine noise and reduce heat transfer into the passenger cabin, improving comfort. Located on the inner surface of the engine hood. Genuine OEM soundproofing materials are engineered for specific acoustic and thermal properties, ensuring optimal noise reduction and heat insulation for the vehicle.