The Genuine VW / Audi Oil Change Kit (5W40) - 178517 is a comprehensive kit designed to provide all the necessary products for an oil change in a Volkswagen or Audi car. The kit includes three essential components: an oil filter, engine oil, and a drain plug gasket. The oil filter is responsible for removing impurities and contaminants from the engine oil, ensuring that the engine runs smoothly and efficiently. The engine oil is a high-quality 5W40 oil that is specifically formulated for use in Volkswagen and Audi vehicles. This type of oil provides excellent lubrication and protection for the engine, helping to extend its lifespan. The drain plug gasket is a small but important component that helps to prevent leaks and maintain the integrity of the oil system. Overall, this kit is a convenient and reliable option for performing an oil change on a Volkswagen or Audi car.