Genuine OEM Volkswagen Urea Solution Adblue, part number G052910M2. This diesel exhaust fluid (DEF) is used in Selective Catalytic Reduction (SCR) systems to reduce nitrogen oxide (NOx) emissions from diesel engines. It is indicated by position 35 on the diagram. Genuine OEM Adblue meets stringent purity standards required for SCR systems, preventing catalyst damage and ensuring effective emissions control.