Before:
After:
IMG_2668 by
QuattroChallenge, on Flickr
Picked up a set of 2013 post-refresh LED Avant tail lights from the Europrice GB.
The Nightmare Begins:
I had Eurotech install the lights using the pdf directions that I had recieved from Europrice and printed out (that's important in a sec). The first issue we ran into was a direction that called for tapping a Blue/Grey wire on the Black T17 plug on the BCM module. We tapped it and then moved on to the next direction. Remember the note about I printed the pdf?.... Well my printer was apparently out of brown ink and completely left out an instruction about the next tap being on , you guessed it, a brown T17. Needless to say we tapped a wire on the wrong plug. Later that night I met up with AK47 as he was gracious enough to let me use his VCDS cable and laptop to have DavidB8 code my lights. Obviously, the incorrect wiring made coding the lights correctly, impossible. Fortunately, Ak and I had the benefit of his Avant to compare the wiring.
Immediately it was apparent that while the plugs are the same, the wiring varies by car. I have seen 2 other Avant BCM's and helped with another of these installs on tingman's Avant. None of us have the same wiring on our BCM's. BUT, the wiring you need for this mod IS there. The more options on your car, the more wiring you have to your BCM module. Figuring out the wire that was supposed to be on the brown T17 plug was simple as soon as AK pulled out his tablet and brought up the PDF. Immediately I was like whoa what's that instruction in brown...never seen that. One down. The other wire was not so simple. David B8 was sure that I must be tapped to the wrong wire. I told him I was tapped on the Blue/Grey wire on the Black T17. As the hours went by. Between Ak and myself, we must have looked at the wiring on my car and his until our eyes hurt. At some point we noticed that the Blue/grey wire on my module was a much larger gauge than the wire on AK's Avant BCM module and in a different location on the plug. I started pulling all the wiring apart one wire at a time. It's really tight in there. Eventually I discovered a bundle of fine gauge wiring surrounded by larger gauge wiring. In that bundle of angel hair wiring

I found ANOTHER Blue/grey wire. We tapped to that one and Voila DavidB8 was able to get me coded and soon I was all set....for awhile.
IIRC, it was 2days later... I went to a father/son event at my son's school. Came out and the Avant would not start. At this point the story starts taking so many twists and I've probably bored you to death already so I'll cut out several "comedy of errors". Audi tried to tow it twice, Epic Fail!. Audi sent a tech to try and get the car out of Park. As I see him coming, I tried to start the car again and it fired right up. Error messages: Ignition Lock Failure!! Proceed to dealer immediately. I followed the tech back to the dealership. Once they shut the car off in a bay... they couldn't restart it for 3 weeks. Eventually I got my car back after some serious expense and a new BCM. Dealership claimed that the light install "killed" the BCM. Jury is still out on that one. I'm sending the BCM to David B8 for possible diagnosis. I just don't see how the problem happens 2 days after the fact...but the B8 does incorporate several modules that were separate into the BCM module. One of those module controls the advanced key authentication...who knows....
Once I got the car back, with a new BCM but no tail lights, I had to start the install process all over again. This time you would think that it would be much simpler knowing which wire to tap, how to release panels, etc. Murphy's Law stepped in at EVERY turn. The dealership tech had really damaged the wiring harness adapters that Europrice includes with the lights. Every time I found and fixed one wire, another would fail. Eventually I got everything repaired long enough to have DavidB8 recode my new BCM. Everything worked for a day before the wiring again became a problem. I have basically rebuilt the harnesses temporarily and everything is working. Had to recrimp several wires last week but at least I know that once the harnesses are replaced, it should all be completely fine.
I can provide photos of all this but don't want to bore you with the process if you only care about the end result... If anyone undertakes this mod and needs any clarification or up close photos, feel free to PM and I can email you whatever you need.
I'd rather share the good parts of the mod and move on to showing pics of the diff lighting config. Before I do that I have some people that I need to thank. There are many people that were involved with this mod/project but the following folks deserve special recognition.
THANKS to:
Alex at Europrice: constantly worked with me to try to find solutions.
DavidB8: for all his patience and troubleshooting assistance. This mod would not be possible without him.
Eurotech Motors: Jose and his techs did a great job. They busted their butts to get me on the road intime to get across L.A. for my initial coding session.
AK47: All round cool dude and Audiziner who was incredibly patient during hours of troubleshooting. Glad to have met you!
Tingman: Another very cool dude who came out to my place so we could get his lights installed and coded. Glad to have met you! Thanks for keeping your cool when we were "done" and your Avant wouldn't start. Problem turned out to be that a plug on the BCM was not fully seated even though the locking tab appeared locked. I think we were both more scared than we wanted to admit. Me especially, considering the nightmare I had just been through, I was terrified that I had just helped him kill his BCM. Glad it all worked out for you man. In fact DavidB8 was able to code his car in less than 15 minutes and went on to do some other VCDS mods for him.
1000 apologies if I am forgetting anyone. I'm still reeling from heatstroke from yesterdays adventure.
For now, here's a parting shot of just the running lights and rear fogs on.
IMG_2719 by
QuattroChallenge, on Flickr
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