what is the normal voltage on the battery when my engine is running?

2004 VOLKSWAGEN TOUAREG
100,000 MILES
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ZAKHIA
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  • 2 POSTS
touareg v8 2004
May 10, 2012 at 7:53 PM
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PROMECHANIC
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  • 536 POSTS
The voltage should be in the 13.5-14.5 range
May 10, 2012 at 8:03 PM
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DJCL
  • CAR REPAIR CONTRIBUTOR
  • 767 POSTS
Some cars have a lower charging voltage @ idle but if you tap the gas thay will jump up into range
May 10, 2012 at 9:23 PM
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DSHELLY77
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14.6 at idle
May 10, 2012 at 9:38 PM
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VWSCOTT
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  • 66 POSTS
if it's low you need the cable that runs to the starter if the alt tests okay. common problem on some touaregs-v6 and v8
Jul 8, 2012 at 7:56 PM