[e//S2] In reply to andrews jackson..

[Miller, Chris]

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OK, we're getting somewhere.
Here is some basic info on the after run system, but that isn't your proble=
m=2E
http://www.sjmautotechnik.com/cooling.html#after
That's for the AAN/200q20v/10vt cars, but that's what you've swapped in...

http://www.sjmautotechnik.com/cooling.html#fan
describes the fan.  Basically you have a series of resistors controlling fa=
n speeds.
Look down a bit for this:
"RADIATOR FAN RESISTOR PACK TESTS

If the 1st or 2nd speed fan is not coming on, you may want to check the lar=
ge resistor pack with aluminum heat sink mounted down below the front of th=
e radiator on the frame. This large resistor pack is used to drop the volta=
ge to the radiator fan motor to provide the 1st and 2nd speeds. Often times=
 the 2nd speed fan will stop working due to this resistor pack getting burn=
ed up."

I don't know where the resistor pack is on the coupe.  Assume it is the sam=
e; was all my Audis.  You've probably got a short or wrong hook up.
Chris

-----Original Message-----
From: Andrew.Jackson at bmo.com [mailto:Andrew.Jackson at bmo.com]
Sent: Thursday, June 05, 2003 8:06 AM
To: Miller, Chris
Cc: es2 at audifans.com; es2-admin at audifans.com; josh Leonti; Matt twentyV
Subject: RE: [e//S2] In reply to andrews jackson..



BTDT
On every setting but ECON, my *HIGH* speed fan will run.

I cannot under any circumstances get the 1st speed fan to run.

ALJ





	"Miller, Chris" <chris.miller at infofoundry.com>


06/05/2003 07:54 AM



        To:        <Andrew.Jackson at bmo.com>
        cc:        <es2 at audifans.com>, <es2-admin at audifans.com>, "josh Leon=
ti" <livinotte at cox.net>, "Matt twentyV" <matt_20v at yahoo.com>
        Subject:        RE: [e//S2] In reply to andrews jackson..




Use  your coupe bentley to troubleshoot the climate control, section D8, st=
arts on  D8-140 (D8 is right after group 74 if you can't find it).  Low spe=
ed should  work with climate control in any setting except ECON, while outs=
ide temp is  above around 40 degrees, and key to ON, whether engine running=
 or  not.
Chris
-----Original Message-----
From: Andrew.Jackson at bmo.com  [mailto:Andrew.Jackson at bmo.com]
Sent: Thursday, June 05, 2003 7:44  AM
To: Miller, Chris
Cc: es2 at audifans.com;  es2-admin at audifans.com; josh Leonti; Matt twentyV
Subject: RE:  [e//S2] In reply to andrews jackson..



Tried that LONG ago.
Doesn't work.

My bigger  problem (which is most likely related) is that the 1st speed fan=
 does not come  on at all.
I'm going to tear into it  this weekend.

ALJ



	"Miller, Chris"  <chris.miller at infofoundry.com>

06/05/2003 07:15 AM

        To:         "Matt twentyV" <matt_20v at yahoo.com>,  <Andrew.Jackson at b=
mo.com>, "josh Leonti"  <livinotte at cox.net>
         cc:         <es2 at audifans.com>, <es2-admin at audifans.com>
        Subject:         RE: [e//S2] In reply to andrews  jackson..



After run  circuit is pretty easy to troubleshoot on all the turbo  Audis.

First step:  engine off, look  at the coolant rail on the radiator side of =
the head.  There are two  temperature sensors on it; the smaller 2 pin unit=
 is used for  afterrun.
Connect the two wires together (don't let them short to ground)  and you'll=
 have the low-speed fan and pump run.  It can be hard to tell  if the after=
 run pump is working; it should vibrate, but that doesn't always  mean cool=
ant is flowing, as the impeller may be  frozen.
Chris

-----Original  Message-----
From: Matt twentyV [mailto:matt_20v at yahoo.com]
Sent:  Wednesday, June 04, 2003 4:50 PM
To: Andrew.Jackson at bmo.com; josh  Leonti
Cc: es2 at audifans.com; es2-admin at audifans.com
Subject: Re: [e//S2]  In reply to andrews jackson..



---  Andrew.Jackson at bmo.com wrote:
> This is a multipart message in MIME  format.
> --
> [ Picked text/plain from multipart/alternative
> Almost everything you "need" will connect to harness
> T10a  (black), and it
> is all really quite simple if you have both  wiring
> diagrams available.
> (at least AAN -> 7a wasn't too  bad)
>
> The most complex circuit in the whole process  (maybe
> even the whole car)
> by FAR has to be the cooling  system.
> I still haven't figured that part out 100% yet and
> I'm  currently
> struggling with a near overheat condition because of
>  it.  :-/

Hmmm, it can be made to  work.  I have a 4-row Al
radiator (from 2B, bought it years ago when  the
stocker broke, before they raised their prices) and
no AC.  The  thermoswitch on the rad. does it's thing
switching the fan on and off, and  presumeably the
thermostat is in good working order.  I have to  really
work it to get the oil temp guage  above 100C  (stock
200tq/3B oil cooler) and the VAG-COM shows group 000
engine temps  right around 200F as it should be.
The only issue I have is that I have yet  to hear
the after-run fan/ pump kick in.  I understand that
is not  unusual for 3B/ AAN cars, but I still plan to
dig into it at some  point.
Net I think the only components that could cause your
trouble are  the thermoswitch and T-stat.  I would be
surprised if the stock  radiator is really that
defficient.
Matt

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