# rejuvenation of an O.G. S4

**URL:** <https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629>\
**Category:** Builds\
**Created:** [February 10, 2012, 6:01pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629 "2012-02-10T18:01:42Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [February 10, 2012, 6:01pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/1 "2012-02-10T18:01:42Z")

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I bought this S4 over the summer to have some fun in the snow with… Since it hasn’t snowed I’ve been slowly trying to rejuvenate it to a loved condition from its extensively neglected condition currently. The person I purchased this off of let it sit in his yard for almost 2 years under pine trees, so you can imagine what that did to it. I doubt anyone has seen it around as I have been knee deep in a complete heater box rebuild. Looking at attempting to make this my DD by July but then again its german.

 ![http://i46.photobucket.com/albums/f135/lyncat85/s4Right.jpg](http://i46.photobucket.com/albums/f135/lyncat85/s4Right.jpg)  
 ![http://i46.photobucket.com/albums/f135/lyncat85/s4Rear.jpg](http://i46.photobucket.com/albums/f135/lyncat85/s4Rear.jpg)  
 ![http://i46.photobucket.com/albums/f135/lyncat85/s4Left.jpg](http://i46.photobucket.com/albums/f135/lyncat85/s4Left.jpg)  
 ![http://i46.photobucket.com/albums/f135/lyncat85/s4Front.jpg](http://i46.photobucket.com/albums/f135/lyncat85/s4Front.jpg)

The paint looks like its been washed with a brillo pad or the car is made of brushed aluminum. From what I’ve read it looks like im just going to embrace the brushed aluminum look :banghead

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**Author:** ![toomanycamaros](https://avatars.discourse-cdn.com/v4/letter/t/7993a0/32.png) [@toomanycamaros](https://forums.speedlife.net/u/toomanycamaros)\
**Post date:** [February 10, 2012, 6:14pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/2 "2012-02-10T18:14:28Z")

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what year is that?

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [February 10, 2012, 6:37pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/3 "2012-02-10T18:37:44Z")

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Its a 93

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**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\
**Post date:** [February 10, 2012, 6:39pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/4 "2012-02-10T18:39:44Z")

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Your paint issues with this car are extremely common. It’s actually quite rare to find one with good paint even if the car has been well maintained and stored.

Either way, love it. Few five cylinder nuts on this board, myself included, so if you run into trouble feel free to ask anything here and you’ll get an answer.

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**Author:** ![HANSTECH](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hanstech/32/6445_2.png) [@HANSTECH](https://forums.speedlife.net/u/HANSTECH)\
**Post date:** [February 10, 2012, 6:43pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/5 "2012-02-10T18:43:17Z")

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nice ride. def a few audi nuts on here. im sure they will lend a hand if needed.

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [February 10, 2012, 6:49pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/6 "2012-02-10T18:49:38Z")

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the car runs like a top and i love the sound of the 5cly. i think most people would have parted this one but ive been very lucky to score excellent replacement parts on the web. My brother gave me an 86 5000 turbo 6yrs ago for a few months while my old gsr was getting repainted. The exhaust had fallen off the 5000 and it screamed, ever since that car ive always had a sweet spot for 5cly audis. I would also be lying if a particular 200 from this site didnt motivate me into purchasing this car.

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [February 10, 2012, 6:51pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/7 "2012-02-10T18:51:59Z")

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I will definitely be asking for advice/help from all on here, im an amateur wrencher at best and will need all the guidance i can get. This is my first turbo car, and first german so i will need all the help i can get so thank you in advance 😉

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**Author:** ![4ADAM12](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/4adam12/32/6282_2.png) [@4ADAM12](https://forums.speedlife.net/u/4ADAM12)\
**Post date:** [February 11, 2012, 1:54am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/8 "2012-02-11T01:54:17Z")

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Nice car, just remember the ground wire in not black, it brown. Damn Germans!

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**Author:** ![AMD\_IS\_THE\_BEST](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/amd_is_the_best/32/6342_2.png) [@AMD\_IS\_THE\_BEST](https://forums.speedlife.net/u/AMD_IS_THE_BEST)\
**Post date:** [February 12, 2012, 5:23am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/9 "2012-02-12T05:23:05Z")

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Awesome pickup man! Where about are you from? Have we met?

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [February 12, 2012, 9:10am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/10 "2012-02-12T09:10:04Z")

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I live in Glenville, from CP originally. We have never met but I have been trolling your thread since I purchased the car. The 200 is truly badass

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**Author:** ![AMD\_IS\_THE\_BEST](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/amd_is_the_best/32/6342_2.png) [@AMD\_IS\_THE\_BEST](https://forums.speedlife.net/u/AMD_IS_THE_BEST)\
**Post date:** [February 12, 2012, 10:34am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/11 "2012-02-12T10:34:46Z")

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Haha, badass. Thank you sir!

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**Author:** ![Vovchandr](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vovchandr/32/6275_2.png) [@Vovchandr](https://forums.speedlife.net/u/Vovchandr)\
**Post date:** [February 15, 2012, 11:25am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/12 "2012-02-15T11:25:39Z")

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Car is a beaut! Can’t wait to see what you’ll do with it.

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [February 18, 2012, 8:29am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/13 "2012-02-18T08:29:45Z")

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The heatercore replacement has been an interestings journey to say the least. These cars have a self contained heater box assembly that houses the core and blower motor which was squealing and also needed replacing.  
Step 1 remove the box

 ![http://i46.photobucket.com/albums/f135/lyncat85/heaterboxOpening.jpg](http://i46.photobucket.com/albums/f135/lyncat85/heaterboxOpening.jpg)  
Step 2 crack it open and replace everything  
 ![http://i46.photobucket.com/albums/f135/lyncat85/heaterboxOpen.jpg](http://i46.photobucket.com/albums/f135/lyncat85/heaterboxOpen.jpg)  
Step 3 put it back together incorrectly by reversing a flap  
Step 4 take apart and reverse the flap  
Step 5 reinstall and still have no heat  
Step 6 find this little POS mini motor had died and left the flap stuck on cold air  
 ![http://i46.photobucket.com/albums/f135/lyncat85/BlowerMotor.jpg](http://i46.photobucket.com/albums/f135/lyncat85/BlowerMotor.jpg)

Now the car will only have heat until i get around the manually moving the  
flap in the summer…on a positive note

 ![http://i46.photobucket.com/albums/f135/lyncat85/WithRims.jpg](http://i46.photobucket.com/albums/f135/lyncat85/WithRims.jpg)  
Much nicer with new wheels

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [March 4, 2012, 10:45am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/14 "2012-03-04T10:45:18Z")

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Anyone ever hardwire the cooling fan? Im looking to put it to a switch on the dash in order to have complete control over it. Can i tap into this for a power source to fun the aux cooling fan?  
 ![http://i46.photobucket.com/albums/f135/lyncat85/photo.jpg](http://i46.photobucket.com/albums/f135/lyncat85/photo.jpg)  
The fan worked over the summer until the tray under the car cut the wiring. I have tested the fan which is functional, replaced the relays, replaced the sensor at the bottom right of the radiator im just not sure what else i could do wo hardwiring it.

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**Author:** ![Johawk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/johawk/32/6284_2.png) [@Johawk](https://forums.speedlife.net/u/Johawk)\
**Post date:** [March 6, 2012, 6:00am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/15 "2012-03-06T06:00:14Z")

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You really got to ride in the 200 to appreciate it. It was undefeated at H2O last year!

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**Author:** ![AMD\_IS\_THE\_BEST](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/amd_is_the_best/32/6342_2.png) [@AMD\_IS\_THE\_BEST](https://forums.speedlife.net/u/AMD_IS_THE_BEST)\
**Post date:** [March 6, 2012, 6:52am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/16 "2012-03-06T06:52:36Z")

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I’d advise repairing the original fan circuitry if possible. Putting the fan on a switch is a cob-job in my opinion.

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**Author:** ![HANSTECH](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hanstech/32/6445_2.png) [@HANSTECH](https://forums.speedlife.net/u/HANSTECH)\
**Post date:** [March 6, 2012, 8:11am UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/17 "2012-03-06T08:11:50Z")

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> [@Roadhouse closed](https://forums.speedlife.net/t/roadhouse-closed/48431/59):
>
> The fan worked over the summer UNTIL THE TRAY UNDER THE CAR CUT THE WIREING. I have tested the fan which is functional, replaced the relays, replaced the sensor at the bottom right of the radiator im just not sure what else i could do wo hardwiring it.

Maybe fix the wire that got cut?

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [March 6, 2012, 5:25pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/18 "2012-03-06T17:25:05Z")

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im going to dive into it further this weekend hopefully, I just felt defeated when posting this. I had fixed the compromised wiring and still no luck. I’ve tested the fan which works as well as replaced the 214 relays. I now need to look into finding the resistor pack which is behind the inter cooler/under the washer reservoir and check the condition of the wiring.

> [@The Truth about Fox News](https://forums.speedlife.net/t/the-truth-about-fox-news/48535/5):
>
> You really got to ride in the 200 to appreciate it. It was undefeated at H2O last year!

This car still misfires at full boost so I have only a slight idea of what it can do (I have new coil packs on my table), the 200 from all the youtube vids I have watched is a complete beast. Im always looking for it on the road and hope to see it in person sometime.

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**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\
**Post date:** [March 6, 2012, 7:07pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/19 "2012-03-06T19:07:44Z")

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Definitely do not tap a circuit for the fan. Big draw right there. either repair the existing circuit, or replace the entire fan assembly and wiring with an aftermarket piece.

You can buy dirty cheap fans online @ places like [siliconeintakes.com](http://siliconeintakes.com) or similar, they’re actually decent fans for the money. You can use the factory thermotime switch to trigger a relay, just be certain that the relay coil field is powered off a key on circuit, otherwise the fan will continue to run key off until the motor completely cools down(= dead battery when you return).

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**Author:** ![jknoxville01](https://avatars.discourse-cdn.com/v4/letter/j/eb9ed0/32.png) [@jknoxville01](https://forums.speedlife.net/u/jknoxville01)\
**Post date:** [March 7, 2012, 12:28pm UTC](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629/20 "2012-03-07T12:28:37Z")

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I think i found the culprit, this connection was buried under the intercooler outlet and is totally burnt out to a crisp.  
 ![http://i46.photobucket.com/albums/f135/lyncat85/photo-1.jpg](http://i46.photobucket.com/albums/f135/lyncat85/photo-1.jpg)  
Is this just a connector or is it more complicated than that? Its the connection from the cooling fan to the resistor pack. To me it looks to just be a connector, which i think im going to completely rewire from scratch with some nice clean connections. Everything is pretty corroded and nasty looking.

[Next page](https://forums.speedlife.net/t/rejuvenation-of-an-o-g-s4/262629.md?page=2)
