Re: [20v] Low voltage

Fri Oct 30 20:08:48 PDT 2015

From experience ... VR can be replaced in about 5-10 minutes very easily...and inexpensively. I'd start there if it were me. Alternator can stay put while doing the swap so it's almost a no-brainer. 

Wylie Bean
Too many 20v cars to list at this hour

----- Reply message -----
From: "Christopher Gharibo" <cgharibo at usa.net>
To: <quattro at audifans.com>, <20v at lists.20v.org>
Subject: [20v] Low voltage
Date: Fri, Oct 30, 2015 9:14 PM

I have a '91 coupe. I got a low voltage warning as I am about to start the car but the car started. The voltage gauge went from 10 to 12v. 

As I am driving I noticed the lights are not that bright and the voltage gauge reads 10v and is dipping. I got another low voltage warning. Somehow I got home and started checking the car. 

Alternator belt is tight. Battery is two years old and has never died. I pulled the alternator voltage regulator and the brushes have 1/4" and 1/16" length left. Clearly unevenly worn. 

What should my next step be? I am thinking either swap the voltage regulator or the alternator.

Thank you in advance. 
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