As an independent vehicle history provider, at CARFAX we've made it our mission to tell you everything you need to know by uncovering as many events as possible from the previous life of a used car. This concludes your installation and should have you all wired up! Let us know if you have any questions or comments below.Sometimes what you don't know can't hurt you, but that's not the case when buying a used car. Make sure the cover does not pinch any wires when installed.
Install a Euro headlight switch with a fog light switch setting (ES8602).Carefully break this tab off with needle nose pliers or a similar tool. If you want to disable your daytime running lights (DRLs), locate the TFL tab on the back of the light switch.Tug the wire a few times to be sure it won’t pull out.
When it is fully inserted, it should click and lock in place. Push the blue wire into terminal 8 of the headlight switch connector.
If your car has a stock switch with no fog light setting, you’ll need to order one (ES8602).
Locate one of the two available grommets in the firewall to route the blue harness wire into the cabin. Run the blue wire through the firewall to the interior. This can be easily removed with a small flat-blade screwdriver or pick. Service Tip: You may need to remove a small green rubber plug from the pin 2 location to make room for the new wire. Push the purple plastic retainer back in place to lock all the wires in the connector, then repeat this step at the other headlight. Insert a yellow harness wire into the pin 2 location of each headlight connector (This will supply power to the fog light through the main OEM connector). Use a small screwdriver or punch to slide the purple plastic terminal retainer (arrow) out of the electrical connector. Route one of the two yellow wires from the relay harness to a headlight connector. Just make sure the power (red) and ground (brown) wires in the relay harness can reach the battery terminals Step 2 Here, we remove the plastic hood cable shield (two screws, top arrows), then drill a hole in the shield to mount the relay.ĭrilling two extra holes let us tie wrap the harness wires to the cover. Mount the fog lamp relay (lower arrow) in the engine compartment near the battery.
This instruction manual will take you through the process and help you get on your way to a sharper look and higher visibility. Want to activate the fogs in your MK4 VW? This wiring harness kit will allow you to use a factory set of fogs and wire them into your non-fog light equipped MK4 VW.