The Genuine VW / Audi Ignition Service Kit - 178420 is a comprehensive kit designed to service the ignition system of a car. It includes a variety of high-quality components that are essential for maintaining the efficiency and performance of the ignition system. The kit contains three main items, including an ignition coil, spark plugs, and ignition wires. These components work together to generate the spark that ignites the fuel in the engine, allowing the car to start and run smoothly.

The ignition coil is responsible for converting the low voltage from the battery into the high voltage needed to create a spark. The spark plugs are the key components that produce the spark, and they need to be replaced periodically to ensure proper ignition. The ignition wires, also known as spark plug wires, are responsible for delivering the high voltage from the ignition coil to the spark plugs.

Together, these components play a crucial role in the proper functioning of a car's ignition system. The Genuine VW / Audi Ignition Service Kit - 178420 is a reliable and convenient solution for maintaining the health of the ignition system and ensuring optimal performance of the vehicle. It is a must-have for any car owner looking to keep their car running smoothly and efficiently.