[s-cars] Midyear Voltage Regulator Cutover on a Canadian 94 S4

[Tom Green]

The S6 120A alternator has a black cover over the back and is stamped  
in large letters 120
on the side of the plastic cover.  It makes it more difficult to  
access the regulator but replacing
it is simplified since the brushes and slip rings are exposed with  
the cover removed.   If more
repair is necessary, removal of the alternator is an extensive  
procedure.
  The 120A regulator is an expensive item as well, around $45 online.

You can probably use the appearance of the alternator as a guide to  
it's rated output and the
correct repair parts, but I get the idea that if you know the brushes  
are "well worn" you must
have already removed the regulator?  In that case, I would just go to  
the nearest flaps with the
old regulator and buy a matching replacement.

Tom

> Date: Mon, 27 Mar 2006 18:25:29 -0500
> From: "James Murray \(QA/EMC\)" <james.murray at ericsson.com>
> Subject: Re: [s-cars] Midyear Voltage Regulator Cutover on a Canadian
> 	94 S4?
> To: "Dwayne Cosby" <dcosby at gmail.com>,	<s-car-list at audifans.com>
> Message-ID:
> 	<73FA090C1F1E6A40B4F565A28D8C71228EDA03 at ecamlmw720.eamcs.ericsson.se>
> Content-Type: text/plain;	charset="US-ASCII"
>
> Go with the 110A version, that's what I did on my 93 S4, worked like a
> charm... Here's a write up I did:
>
> http://www.s-cars.org/postnuke/modules.php? 
> op=modload&name=Downloads&fil
> e=index&req=viewdownloaddetails&lid=31&ttitle=UrS4/ 
> S6_Voltage_Regulator_
> Replacement
>
> /Jamu.
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Dwayne Cosby
> Sent: Thursday, February 16, 2006 3:10 PM
> To: s-car-list at audifans.com
> Subject: [s-cars] Midyear Voltage Regulator Cutover on a Canadian  
> 94 S4?
>
> Looking to change my well worn voltage regulator / brushes. Here's the
> pinch. In speaking with SJM there was a cutover on the alternator from
> 110A to 120A mid year on the 94 S4 at VIN# 4A-R-009756.
>
> The 110A version uses 068 903 803D (now obsoleted by Audi but  
> available
> aftermarket). The 120A uses 028 903 803D (Bosch only part) that has
> smaller brushes for the smaller commutator.
>
> Easy enough, but my Canadian S4 has a vin ending in RN072092 so your
> guess is as good as mine how that ties to the above - and I can't easy
> see the p/n on my altenator.
>
> Maybe I just order the cheap 110A version and keep my fingers  
> crossed...
> any ideas from other Canadian cars?
>
> Thanks.
> D.