The Genuine VW / Audi Ignition Coil Kit - 178404 is a comprehensive set of products designed to service the ignition system of a car. It includes a variety of high-quality components that are compatible with Volkswagen and Audi vehicles. These components are specifically chosen to provide reliable and efficient performance, ensuring the smooth operation of the car's ignition system. The kit includes multiple ignition coils, which are responsible for providing the necessary spark to ignite the fuel in the engine. It also includes other essential components such as spark plugs, wires, and connectors, all of which work together to ensure proper ignition timing and fuel combustion. This kit is a cost-effective and convenient solution for maintaining and servicing the ignition system of a Volkswagen or Audi car.