Audi A4 spark plug wires are an essential part of your car's ignition system. Your A4 spark plug wires run from the distributor cap to the various spark plugs, and convey the electrical energy required to ignite fuel. The Audi A4 spark plug wires are different lengths, as the spark plugs are located at various points in your engine.

Since your A4 spark plug wires convey massive amounts of electricity, it is important that their integrity remains intact. Audi A4 spark plug wires are wrapped in a durable silicon jacket to ensure the voltage does not escape.

Your A4 spark plug wires should be changed routinely with every engine tune-up. You will also need to replace your Audi A4 spark plug wires at the first sign of damage. Periodically inspect your A4 spark plug wires for signs of cracking or looseness. Audi A4 spark plug wires carry more than 20,000 volts of electricity at once, and all that juice will seize any opportunity to escape the wires. Faulty A4 spark plug wires result in engine misfires, poor running, decreased power, and poor fuel efficiency. Whenever you change your Audi A4 spark plug wires, you should also check your spark plugs for signs of corrosion or carbon tracking and replace damaged spark plugs at the same time. You may also want to consider high-performance A4 spark plug wires that feature thicker silicon jackets for a hotter spark, which produces more engine power. You can pick up a set of Audi A4 spark plug wires from our extensive online catalogue, and get your new spark plugs in the same shipment at a great price.