CAVEAT: Not all Central Electronics Controllers support front fog lights. Check your controller part number before attempting. This can be accomplished using the VAG-COM. If your controller is PN: 3C0 937 049 D - the proceedure I've outlined below will not work as this controller does not support front fogs. See this thread for more details: http://forums.vwvortex.com/zer...age=1
I recently purchased the OEM fog install kit from the good folks at EMT. Like others, I think it is a good kit and provided you can find a way to get the trigger wire through the firewall, a relatively straight forward installation.
However, being the stickler for staying as close to factory as possible, I discovered from Therisias (Sebastian) that Kufatec.de makes a wiring harness kit that allows for use of the car's existing central electronics controller and eliminates the need for adding the aftermarket relay kit. The other added benefit is that the controller monitors each fog individually for a burnt bulb and warns via the MFI accordingly.
I got in touch with Kufatec's U.S. distributor, Europarts-us who special ordered the kit from Germany. Lanny at Europarts was extremely helpful and I had the kit within two weeks.. URL: http://www.euro-parts.us
SKU Product Item price Quantity Total
33001 Golf/Jetta V Fog light wiring harness $51.00
This included the harness to each fog light and still requires pass through the firewall. However, it wires directly to the connectors at the central electronics controller (under the dash) utilizing the factory connectors. (very clean). It also includes a short trigger wire from the headlight switch to the controller.
In either case (EMT kit or Kufatec) you have to go through the firewall. To make it easy, I suggest pulling the battery and plastic shroud around it. Not the easiest task but it makes getting to the existing pass through easier. It has a flexible grommet around the cable harness at the passthrough. From inside the car I used a plastic hanger to poke through the grommet, taped wires to the hanger and pulled them back through. With the battery out of the way I was able to tuck the wires and tie wrap them neatly to the exisitng harness. Then I used some liquid electrical tape to seal the grommet where I poked the hanger through. Also with the battery out it is easy to acces the grounding stud next to the battery ground wire and connect the ground lead for the fogs. Following Patrick@EMT's excellent instructions, I removed the front bumper to run the harness to the left and righ fog lights.
Connecting the wires at the controller requires some good lighting and some knowledge of how the connectors work. The connectors have to be pulled out and the wire locks removed so the new wires can be insterted into the connectors. All in all pretty straight forward.
After that I just buttoned things up, replaced the battery and started up. The ESP and steering will warning lights stay on after the battey is pulled. They reset themselves after you drive the car a few feet. I then used my VAG-COM to clear any faults (because the cables are pulled the computer detects this and throws some faults - no big deal). I recoded the central electronics controller and voila... factory spec fog light operation.
Modified by mobiledaveb at 4:36 PM 1-10-2006
Modified by mobiledaveb at 12:28 AM 1-25-2006
Modified by mobiledaveb at 9:16 AM 1-25-2006