HAD REGULATOR ON ALTERNATOR CHANGED DUE TO NOT ...

  • Tiny
  • Alistair c
  • 2004 Mercedes Benz
  • 136,000 miles

Had regulator on alternator changed due to not charing, had all codes cleared which was thrown up due to this now battery light keeps coming on & reading at battery is 13.5v when I know it should be at least 14v?

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Tuesday, November 6th, 2012 AT 10:47 AM

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  • Tiny
  • mekanic4755
  • Expert
  • 86 posts

The charging voltage is correct at 13.5, sounds like the alt. Has blown a diode, this will cause the light to come on to let you know some thing is not working properly in the charging circuit. I f this is the case the alt. Will have to be replaced or rebuilt. Thanks for using2CarPros

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Tuesday, November 6th, 2012 AT 1:20 PM

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