Subject: RE: after-run

[C1J1Miller@aol.com]

jday1 wrote:
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I believe Gary Barry is on to something with the after-run relay and dead 

batteries. At the suggestion of John at Impex I took my relay apart ( 

thought I'd find the old fashion contacts and coil), what I found was a 

circuit board and lots of resistors, etc. Around 1 resistors base was a 

blackened area and the resistor appears cooked as it is all fluffy and I 

cannot make out the color code. I would try to replace it if I could 

figure out its value. I'm going to work at it for a few days, if nothing 

comes up I guess it will be time to feed the Audi gods. Got a price of 

$45 if anyone has better, please share.  Thanks

87 5CSTQ - 115,000
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Here's a post I'd saved (also on my web site)
HTH, Chris Miller, Windham NH, c1j1miller@aol.com
http://members.aol.com/c1j1miller/index.html
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Date: 2 Apr 1997 10:21:41 -0600 
From: "McMurray Michael" <McMurray_Michael@macmail1.cig.mot.com> 

I did fix a potentially expensive problem with $1.00 worth of parts. 
The turbo coolant pump wasn't operating.  Ohmed out the wiring, pump runs ok, 
must be the relay.  Opened the relay and sure enough, its expensive little 
guts are charred.  Managed to get a part number off the burnt transistor 
(SGS-Thomson BD435), got a data sheet off the Thomson web page, went to RShack
and found a comparable NPN transistor(TIF-31), soldered it in place along with
a new, beefier 1/2 watt 100 ohm resistor from the junk drawer, plugged it in, 
and WOW! it WORKS!  The relay is $105.00 from the dealer, $80.64 from Carlsen.
RShack transistor was 99 cents. 

Just goes to show the Audi gods have their benevolent moments too.  Now, if 
they will just indulge me in my search for a new injector cooling blower... 

mpm