2004 Audi A6 Quattro Q&A
2004 Audi A6 Quattro Question: What does it mean when the voltmeter is reading high?
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! - bmdouble