TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

TT, Battery/Alternator Question

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Old Oct 25, 2010 | 02:50 PM
  #1  
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Default TT, Battery/Alternator Question

I recently picked up a TT from my friends mother. 2001, 50K miles.

It needed a battery as it wouldnt hold a charge as had been sitting for long lengths of time. I replaced the battery and all was well for a few weeks.

Thursday while driving the battery indicator (speedo) came on and the car experienced no symptoms relating to a bad battery. I drove it about 30 miles, AC on, about half a dozen cranks from various stops/errands I had to run. I parked the car in the garage and left for the weekend. Last night (Sunday) I try to start it and it's COMPLETELY dead. No dash lights, chimes, or anything. I jump start it and it starts as normal and let it run with the cables connected for a few minutes. As soon as I remove them the car dies and the car returns to a completely dead state.

So what could be the deal, or are there multiples as if the battery was just toast it would stay running after a jump I assume being powered by the alternator, but why would the battery be completely drained after 3 days?

The alternator is relatively new (6mths). Do I have both a bad alternator, and a bad battery and/or short/draw somewhere?
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Old Oct 27, 2010 | 10:18 AM
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Sounds to me like a bad connection to your alternator, as it stalls out after removing jumper cables. Check your grounds and connections to the alternator, and, while you're at it, the battery.
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Old Dec 24, 2010 | 02:47 PM
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No one replied to your mesage?
What was the problem?
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