奔驰S300 W218汽油泵总成 A2184700694 低压燃油泵 原车匹配

This replacement matches OE standards in material and process; pump body uses high-density engineered plastic with corrosion-resistant metal components to withstand impurities in fuel and long immersion; more reliable than cheap aftermarket parts. OEM number A2184700694; fits Mercedes-Benz S300, S350 (W218 chassis) and models with 218 fuel filters. Function is to deliver fuel from the tank at low pressure to the high-pressure pump, ensuring stable start-up and idle oil supply. Installation difficulty medium; requires removing rear seat or underbody shield; recommended to be installed by a technician familiar with Mercedes fuel systems to avoid seal ring misinstallation causing leaks.