Coupe Quattro Alternator interchangeability Q's

Richard J. Andrews tech at flashmail.com
Thu May 23 14:10:37 EDT 2002


i would pull the voltage regulator/brush assembly and if replace that.
9 times out of ten this is why the audi alternators are replaced and it is
much cheeper
to do the brushes than a whole alternator.

HTH!
rich
'86 4kq
At 12:47 PM 5/23/02, you wrote:
>So last night after work, 20 minutes into my commute home with 15 minutes
>left, the battery warning symbol pops up in my early-90 CQ. Volt gauge
>indicates 10V. Quickly shut off radio and HVAC. Voltage goes to 10.4, and I
>keep a close eye as I pull over to the right lanes. 8 minutes later I get to
>the Freeway offramp it's still up at 10V, and I'm encouraged that I might
>actually make it home. While waiting for the light, the radiator fan comes
>on, and voltage drops to 8 Volts. Uh-oh. 2 minutes later while pulling off
>from a stop, the car hesitates, and I decide not to push it. Park it and
>give it a good pat for getting me this far.
>
>Battery recharged fine, and the car drove the rest of the way home after the
>recharge, so all signs point at the alternator.
>
>All wires look good, and I plan on having the alternator checked out after
>work for output, but in pre-emption, what are my options?
>
>Is the alternator on my Coupe unique to the 7A motor, or will any type 89
>alternator (for AC cars) work?
>
>Could the Voltage Regulator be the problem?
>
>Can I repair the Alternator myself?
>
>Suggestions on what else to check? Is the "exciter" wire a problem on these
>models, as in earlier H2O vw's?
>
>Thanks all,
>Jonas
>90 CQ





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