The Genuine VW / Audi Ignition Coil Kit - 178402 is a comprehensive kit designed for servicing a car's ignition system. It includes all the necessary components to replace the ignition coils, which are responsible for providing the spark that ignites the fuel in the engine. The kit contains multiple ignition coils, which are typically made of high-quality materials for long-lasting performance. It also includes other essential components such as spark plug wires and connectors to ensure a complete and thorough replacement. This kit is specifically designed for use in VW and Audi vehicles, ensuring a perfect fit and optimal performance. With this kit, car owners can easily replace their worn-out ignition coils and restore the smooth and efficient operation of their vehicle's engine.