What does it mean when the voltmeter is reading high?
on 2004 Audi A6 Quattro

The volt meter is reading almost to the high red range.

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1 answer
Some Audis have been known to have faulty gauges causing this concern,but I would have your charging system tested just to be sure your alternator is ok. I've seen these gauges go back to normal after a good smack on the dash!