5 Minute DIY CityLight w/Fog Mod (Props to "FatAuto" on AW)...

[Eddie Man]

I know this is a repost but I wanted to put my spin on it...
First of all, HUGE props to "FatAuto" for figuring this out. For reference >>> FatAuto's AW Link

Here's how I did it and I've just include lotso pics for people who like pics

1. Identify wires (Position #1 & #2) on the light switch harness


2. Cut Wire #2. Allow for ample wire for step #3 & #4 below.


3. Strip Wire #2.


4. Crimp on Male Wire Tab Connector to #2 Wire.


5. Use these style wire tap for a fool-proof tap. The best wire taps money can buy, IMHO.


6. Crimp on Wire Tap onto Wire #1. Crimp far enough downstream to allow for the ease of Step #7 below.
FYI, I barely left enough room for mine, but for you guys, go further downstream (See Step #7).


7. Connect up Male Wire Tab to Wire Tap & Tape raw end of Wire #2.


8. Done, in 5 minutes time. Fogs w/CityLights Mod...
Whooot !!!!

[LAS]

if eddie did it on a B7, it's CONFIRMED!

thanks bro.

[PenguiN]

does this work on b6?

[LAS]

look at the AW link he posted.

[Anthony]

Awesome, I've always wanted to do this on my B7. Can we put this write-up in the Tech DIY Forum?

[FatAuto]

Props to FatAuto on AZ too! Thanks for the kind words, glad it worked for you!

[devenyi]

So regardless of the position of the dial, the fogs are on? This seems like a great little mod

[Eddie Man]

So regardless of the position of the dial, the fogs are on? This seems like a great little mod

Not exactly sure on how the Canadian Mode would be affected as in FatAuto's Post, he calls out via the VAGCOM tool to go to RDW mode for the DRL feature.

As for switching and the "Fogs are on regardless of dial position".
NO.
The fogs only go on when you pull the switch either in Headlight mode or CityLight mode.
Really the best way it could be !!!

[devenyi]

Conveniently, I have a US car! I was set on getting the factory Sirius, which still isn't available here. (I now know that I could have retro-fitted it, but it actually worked out to cost less, even after duties & such)

[Rapture]

Did performing this mod have any effect on the "coming home" feature which lights the fogs when you turn off the car?

[Applejacks]

Awesome, I've always wanted to do this on my B7. Can we put this write-up in the Tech DIY Forum?

Shouldn't we be asking you that?

[Benario]

will this work on a b6 s4 there is not dtrl swich for the b6 any help would be great thanks guys

[Applejacks]

will this work on a b6 s4 there is not dtrl swich for the b6 any help would be great thanks guys

Click the link.

[vinny.dtw]

It does work on B6's...I've done this mod like a year ago...no problems whatsoever. You can keep your coming home feature. Everything works like normal

[Anthony]

Shouldn't we be asking you that?

I'm not just going to copy it over to there without the OP's permission. So if Ed wants to post it in there, or have me copy it over, I'm all over it!

[malone]

Is there a way to get the fogs to automatically come on with head lights when switchis on AUTO?

[Applejacks]

I'm not just going to copy it over to there without the OP's permission. So if Ed wants to post it in there, or have me copy it over, I'm all over it!

Just a joke, Administrator Man!

[Applejacks]

Is there a way to get the fogs to automatically come on with head lights when switchis on AUTO?

Too lazy to pull the switch?

[Eddie Man]

Did performing this mod have any effect on the "coming home" feature which lights the fogs when you turn off the car?

No affect whatsoever to the "Coming Home" Feature.

I'm not just going to copy it over to there without the OP's permission. So if Ed wants to post it in there, or have me copy it over, I'm all over it!

Hey Anthony, It would be great if you could copy it over to the Tech DIY forum and also my honor to have it there. Thanks

[va-terps4]

I would LOVE the fogs to come on in the AUTO setting...

[Corrado79]

Too lazy to pull the switch?

You can't pull the switch in auto mode, hence, you currently can't have fogs in auto mode.

I TOO would love to have the fogs come on in auto mode when the headlights do. Is this possible?

[Audi05s4]

do you really need the Vagcom tool to do this mod

[FatAuto]

No affect whatsoever to the "Coming Home" Feature.
Hey Anthony, It would be great if you could copy it over to the Tech DIY forum and also my honor to have it there. Thanks

Taking credit for my hard work, I see how it is on this forum just playing..

[Dodge2Dub]

Not exactly sure on how the Canadian Mode would be affected as in FatAuto's Post, he calls out via the VAGCOM tool to go to RDW mode for the DRL feature.

As for switching and the "Fogs are on regardless of dial position".
NO.
The fogs only go on when you pull the switch either in Headlight mode or CityLight mode.
Really the best way it could be !!!

Okay, this is a dumb question, but I have to ask it since I'm still new to the S4 world. Aren't we able to pull the switch in either Headlight mode or CityLight mode and enjoy the fogs without cutting wires? I guess I'm a bit confused as to what this mod does. Thanks in advance for not flaming!

[Eddie Man]

Taking credit for my hard work, I see how it is on this forum just playing..

I don't want your credit...
Maybe what I shoulda said was. "On behalf of FatAuto, I would be honored..."
There nuff said.

[malone]

Too lazy to pull the switch?

Yes

[va-terps4]

Okay, this is a dumb question, but I have to ask it since I'm still new to the S4 world. Aren't we able to pull the switch in either Headlight mode or CityLight mode and enjoy the fogs without cutting wires? I guess I'm a bit confused as to what this mod does. Thanks in advance for not flaming!

You can pull the knob out in citylight mode, but until you do this mod, the fogs won't come on.

[Dodge2Dub]

You can pull the knob out in citylight mode, but until you do this mod, the fogs won't come on.

That's funny, I never looked to see if they were on when I was in citylight mode. I think I'll be making the switch to citylight fogs!

[enigma1406]

I have a random request/question. Does anyone know if, after doing this mod, you remove the fog bulbs you still get the light out message/beep in the DIS? Can someone try it for me?

[Eddie Man]

I have a random request/question. Does anyone know if, after doing this mod, you remove the fog bulbs you still get the light out message/beep in the DIS? Can someone try it for me?

Yes, the bulb out message still works...
I know this as my Xenon Fogs sometimes (<5&#37; of the time) don't fire the first time until I refire them, then they will come on.
A bulb error occurs then, then they go off once fully ignited.

[enigma1406]

Yes, the bulb out message still works...
I know this as my Xenon Fogs sometimes (<5% of the time) don't fire the first time until I refire them, then they will come on.
A bulb error occurs then, then they go off once fully ignited.

Oh ok, thanks. I was hoping that this could be a way to bypass the bulb out message. Thinking of doing a little mod and not having the bulb out for the fogs would have been a big help. I might still do this for the time being, really nice mod for a little effort.

[Benario]

any way to make to fogs turn on in AUTO mode?

[FatAuto]

Yes, the bulb out message still works...
I know this as my Xenon Fogs sometimes (<5% of the time) don't fire the first time until I refire them, then they will come on.
A bulb error occurs then, then they go off once fully ignited.

I have the same problem, Eddie. But you say 5%, wow mines more like 95%. I have to do the double pull almost every time. Now I installed a set on my brothers car and he has never misfired. He is running a different setup so I guess it depends on who the manufacturer is.

[S4J]

Rats...I did this last night but it didn't work. I have to get someone to VAG me I guess.

___________________
04 S4

[Shady Milkman]

I have the same problem, Eddie. But you say 5%, wow mines more like 95%. I have to do the double pull almost every time. Now I installed a set on my brothers car and he has never misfired. He is running a different setup so I guess it depends on who the manufacturer is.

clealy your brother has a much better car

[Eddie Man]

I have the same problem, Eddie. But you say 5&#37;, wow mines more like 95%. I have to do the double pull almost every time. Now I installed a set on my brothers car and he has never misfired. He is running a different setup so I guess it depends on who the manufacturer is.

I had the same issue and discovered I had a faulty bulb(s) or an aged bulb.

What you should do is visually check your xenon bulb and see if it is at all cloudy...
If it is, you have premature aging and emiment failure will occur (sounds as if failure has already progressed pretty far).
You need new bulbs to correct your issue. Xenon bulbs should be clear.

I changed my bulbs to new and I no longer have issues.
Hope this helps

[Eddie Man]

Rats...I did this last night but it didn't work. I have to get someone to VAG me I guess.

___________________
04 S4

Check your wiring...
My guess is that is where your problem is.
I believe that VAGing is only required if you are Canadian Mode. But not 100% sure.

FYI, I did not have to do any VAGing.

[va-terps4]

VAGing your location setting changes a couple of things:

In the US setting, your corner lights will come on as running lamps in both citylamp and headlight mode. Your fogs will also go OFF when you hit your highbeams.

In the RTW setting, the corners will only be used for turn signals, and the fogs will stay ON with the highbeams.

The wiring change Eddie and FatAuto have detailed will only allow you to turn the fogs on in citylamp mode. Nothing more, at least as far as I can tell. I'm planning to do my '07 S4 this weekend, and I'm already VAG'd to RTW. I will post if I notice anything different.

[S4J]

Quote:
Originally Posted by S4J
Rats...I did this last night but it didn't work. I have to get someone to VAG me I guess.

___________________
04 S4

Check your wiring...
My guess is that is where your problem is.
I believe that VAGing is only required if you are Canadian Mode. But not 100% sure.

FYI, I did not have to do any VAGing.

Eddie,
I triple checked and even added a direct jumper between pins 1 and 2 by pushing a heavy gage wire into the connector with the pins. They ohm out as a short so I know I have a good connection, and the fogs still work but only as normal. Wire #2 is clipped as in the instructions.
Hmm….Steve

[FatAuto]

Quote:
Originally Posted by S4J
Rats...I did this last night but it didn't work. I have to get someone to VAG me I guess.

___________________
04 S4




Eddie,
I triple checked and even added a direct jumper between pins 1 and 2 by pushing a heavy gage wire into the connector with the pins. They ohm out as a short so I know I have a good connection, and the fogs still work but only as normal. Wire #2 is clipped as in the instructions.
Hmm….Steve

Steve, If I remember correctly I had to VAG to RTW. I don't think it worked on the stock US setting. This was on an '04 S4