Alternator or Voltage Regulator? Burned two batteries in a week.

Question

Audi A6

The Audi A6 is an executive car made by the German automaker Audi AG, now in its fourth generation. All generations of the A6 have offered either front-wheel drive or Torsen-based four-wheel drive – marketed by Audi as their quattro system.

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Keith @keith79301

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Veröffentlicht: 21. Jul 2015

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Alternator or Voltage Regulator? Burned two batteries in a week.

The 1996 Audi A6 Quattro cars battery gauge will jump up under acceleration but doesn't seem to hold charge even after long periods at high R P Ms dies at idle I had it tested at AutoZone they stated must be Alternator but the Voltage regulator much cheaper part and a fix I could manage, the alternator not so much . Any information as how to diagnose one from the other would be greatfully welcome.

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Jimfixer @jimfixer

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Veröffentlicht: 21. Jul 2015

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You can test you alternator with a voltage meter . With the motor off get a reading it should be around12.6v then with the motor running it should be 14.2v but if its over 14.6v you have a issue with regulator. If you've burned out 2 batteries in a week your looking at the voltage regulator but most regulators are inside the alternator. If moneys an issue try an auto wreckers . Cheap place for parts and your dealing with an old car so why not put an old part on . Probably last as long as the car and if it doesn't you can get 3 or 4 alt at a wreckers for the price of a new one. One of them is bound to outlast the car.

https://www.youtube.com/watch?v=LGB6ZEjG...

this is a good video to show you proper test

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