How Often Does Your Volkswagen Fuel Filter Need to be Replaced?
As with all automotive maintenance and service that your VW will need, a schedule that includes fuel filter replacement can be found in the owner's manual. For most modern Volkswagen models, this means replacing the fuel filter every 20,000 miles. For the vast majority of drivers, keeping with this schedule will ensure no issues from the fuel system related to the filter.
What Happens if You Don't Replace Your Fuel Filter?
Running the engine in your vehicle without replacing the fuel filter won't result in very noticeable issues right away, but that will change over time. You see, it's virtually impossible to keep every bit of sediment and debris out of gasoline between the refinery and your car's gas tank. That's why every automotive fuel system is equipped with some manner of fuel filter to protect the injectors, engine, and even the fuel pump.
As the fuel filter collects particulates from the gasoline, it will become full and allow less fuel through to the engine. This may seem like it will save gas, but instead it causes the engine to work harder while providing less performance, and that uses more fuel. When neglecting to change the fuel filter, the most likely thing to happen at first is a reduction in fuel economy. However, prolonged use of an expired fuel filter can result in problems with the fuel pump as it pushes fuel against an overly constricted fuel filter, and it's far more affordable to have the fuel filter replaced than the fuel pump.
How Can You Tell if Your Vehicle's Fuel Filter Needs to be Replaced?
Simply keeping up with the recommended maintenance we mentioned earlier is the easiest way to know when any general maintenance needs to be done. If it’s a pre-owned vehicle or you're not sure when the last service was done, measuring the fuel pressure at the engine is typically the best way to know that a fuel filter needs to be replaced. Since this involves dealing with gasoline under pressure, it's best to leave this to the trained experts at your local authorized dealer. To do it in your garage means having a fuel pressure gauge and knowing what the pressure for the vehicle should be among other important procedures.
Carter Volkswagen in Ballard is proud to be your local authorized dealer, serving Renton and Puyallup, WA.