Upgrade your ignition coils to maintain consistent spark with Genuine VW Audi red top ignition coils. These coils work on a wide range of VW and Audi models and are the latest revision. If your Audi or Volkswagen has been feeling sluggish as of late it could be due to poor performing ignition coils. Ignition coils are responsible for transferring power to the spark plugs. If the coil is worn out or damaged it will fail to function optimally or may fail to function entirely. Ignition coils can be replaced individually as they fail but we always recommend replacing them all at once for the best service life and performance. These coils are often considered as an upgrade for the 2.0T engines and perform flawlessly with smooth engine performance.