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

[Robert Rossato]

Dwayne,

Your car takes the later brushes based on your VIN.  The 4A-R-009756 break point listed is the last 11 digits of a VIN, with a couple of the non-pertinent digits represented by dashes.  The pertinent information is the chassis number, 4A, the year of manufacture, R, and the specific serial number where the break occurs, 009756.  Your VIN would translate to 4A-R-072092, which is obviously much later than the break point.

Bob


 -------------- Original message ----------------------
From: Dwayne Cosby <dcosby at gmail.com>
> 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.
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