While there is no factory service interval on a VW or Audi fuel injector, they can certainly create issues that lead to replacement including a Check Engine Light, oil dilution and consumption, engine misfires, etc. If your Volkswagen or Audi is running less than perfect, call Das Autohaus in Lexington, SC 29073 at 803-520-8523 to schedule an appointment for inspection. Let us get to the bottom of your import vehicle concerns !