Alternator "brushes" Q

[cobram at juno.com]

What you want is the voltage regulator.  A pretty common part, available
from most of the FLAPS.  Two philips screws and you're done.  I needed
one for the '90 200TQA on a Sunday afternoon, and to my surprise the
local AutoZone had it on the shelf.  About $7 more than the Bosch mail
order, but still going strong.

BCNU,
http://www.geocities.com/cobramsri/
"God's a kid with an ant farm, lady. He's not planning anything."
 
 suffolkd at aol.com writes:
> My 200 20V alt went from 13 v to under 12 in a week.
> 
> Is suspect the brushes are gone.? Batteries getting weaker.
> 
> What is the Audi part number for the brushes which insert from the 
> back?