Fits: – VW Passat B7 – Diesel only VW Genuine Fuel Filter, (7N0127177B), (bulk packaging) (fitment years are merely suggestive, as modifications and specific vehicle models may or may not be different, if you have any questions regarding fitment, send us an email at: [email protected])   What Does a VW Fuel Pump Assembly Do? The fuel pump on your VW is responsible for supplying fuel pressure to the injection system to meet your car’s driving needs. Mechanical fuel pumps are usually located outside the fuel tank. These pumps mimic the diaphragm pumping action to supply gas to the carburetor from the gas tank. Electronic fuel pumps can be found inside the gas pumps and work by spraying fuel into the engine chamber. Why Does My VW Fuel Pump Keep Going Out? Your Volkswagen fuel pump should last more than 100,000 miles. However, it might suddenly fail due to electrical faults, fuel contaminants, or old age. Fuel pump problems can prevent your car’s engine from starting. It can also cause performance and drivability issues. How to Tell if Your VW Fuel Pump Assembly is Going Out? If your VW fuel pump shows signs of malfunction, it is best to replace it immediately. The following signs indicate the VW fuel pump is going out: The engine starts to sputter when you hit top speed Your engine overheats You have low fuel pressure Your engine loses power under certain circumstances You notice engine surges Your VW fails to get the gas mileage it usually gets Trouble starting your car How to Diagnose a Bad Fuel Pump? If your fuel tank has enough gas, ensure that the inlet line supplies fuel into the fuel pump. If fuel is getting to the fuel pump, turn your focus to the fuel pump. Then, take off the top line from the top of the float bowl to see if it has any fuel in it. If it is dry, you might have a bad fuel pump. Our Promise to You We provide genuine OEM VW fuel pump assembly parts made of high-quality materials to provide unmatched performance and excellent durability.