Is your Coil pack harness cracking from heat? Here is your updated replacement harness from
VW p/n 1J0971658L . Cracks in the wiring can lead to misfires and check engine lights flashing. If you've already replaced your coilpacks and spark plugs odds are you have a faulty wiring harness. Upgrade to this newer stylel harness and get rid of that pesky check engine light! Click the link below for the official VW tsb.
Installation Guide per Official VW TSB
NOTE: This kit is made specifically for all 2000-2005 Golf/Jetta 1.8T engines. Some parts but not all will also work with Audi/Passat 1.8T engines but it is not an exact harness. At this time VW/Audi does not offer a similar harness for the Audi/Passat engines.