Replace Audi A4 Diesel Fuel Pump Components. Find Audi A4 Fuel Pump Assembly Parts & Audi A4 Parts Of A Fuel Pump Assembly Purchase Audi A4 Fuel Pump Price. Maintaining the fuel pump components of your Audi A4 is crucial for optimal performance and longevity. Regularly checking for signs of wear, such as sputtering at high speeds or a loss of power under stress, can indicate the need for replacement. To extend the lifespan, ensure your fuel filter is changed according to the manufacturer's schedule to prevent contaminants from clogging the pump. When selecting a new fuel pump, opt for OEM-quality components that match your A4's specifications for a seamless fit and reliable functionality. Proper installation is key, so consider professional fitting to guarantee peak efficiency and preserve the integrity of your fuel system. Shop with confidence, knowing that the right fuel pump will keep your Audi A4 running smoothly.