Genuine OEM Volkswagen Diesel Particulate Filter, part number 2H0253053EX. This filter is designed to trap soot particles from diesel exhaust gases, significantly reducing harmful emissions. It is located at position 1 in the diagram. The filter weighs 10.319 kg and has dimensions of 0.8m x 0.31m x 0.245m. Genuine OEM particulate filters are precisely calibrated to ensure optimal filtration and compliance with emissions standards.