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Q: Intermittent Battery Light on 2005 Volkswagen Beetle

My wife has a 2005 Beetle Turbo, we are seeing the battery light flash on occasionally, within th epast two weeks. We replaced the battery last year. I suspect this means the alternator is going bad. Any idea if my assumption is correct and how long we have before we need to replace it?
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I'd suggest to get a charging system test. It will test the alternator, battery, starter.
Looks like the alternator is going out, but better to confirm it with a test.

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