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#1
10-16-2005, 02:00 PM
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79 280SL Alternator problems
My battery light recently came on. I have checked and charged the battery looking for tips on how to test the alternator? I have noticed that when i increase the RPMs the battery indicator fades.
Last edited by cw2594; 10-16-2005 at 02:19 PM. Reason: Update 
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#2
10-16-2005, 08:12 PM
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Check your voltage regulator....
If your voltage regulator can be changed independently of the alternator, I would check that out. You may be wearing the carbon bushings on the reg to the degree where idle speed no longer provides a charge, either way, it will soon go altogether.
Worth a check, voltage regs are the cause of a majority of MB charging issues, and generally cost $10 bucks at your local parts shop.
__________________
Stable Mates: 1987 300TD 310K mi (Hans) 2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)
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