The Genuine VW / Audi Oil Change Kit (0W20) - 178503 is a comprehensive kit designed for changing the oil in a car. It includes four essential products that are necessary for a complete oil change. These products include an oil filter, an oil drain plug, a crush washer, and the recommended type of oil (0W20). The oil filter is used to remove impurities and contaminants from the oil, ensuring that the engine runs smoothly. The oil drain plug is used to drain the old oil from the car's engine, while the crush washer helps to create a tight seal to prevent any leaks. The recommended type of oil (0W20) is specifically formulated for VW and Audi vehicles, providing optimal performance and protection for the engine. This kit is a convenient and reliable option for car owners to perform an oil change at home.