LarryT wrote:
I have a theory about alternators and batteries - now, me being a person who only learns enough electrical info to fix what is broken at the moment, my education of electrical problems has been hands on - most often trial and error unless I have some helpful cohort who is leading me along or I've found a book wiht very simple instructions.

I've seen this, "thing", a couple of times - a battery will die and the alternator will die at the same time. My theory is the alternator is working extra hard trying to keep the battery charged - which it can;t do because the battery is shorted, etc - so the alt dies because it's running wide open almost all the time - and summer comes along and the added electr needs of ACC and the AC blower - creates even more demand.

Any validity to this or has it just been a co-inkydink on my 99 Camry and 91 MB and a couple other vehicles over the years?

I have owned 22 different Mercedes over the last 43 years. I have replaced more than 50 batteries. I have replaced one or two alternators and maybe a half dozen or two regulator/brush assemblies, rarely at or near the same time.

That doesn't correlate well with your theory!

Marshall
--
          Marshall Booth (who doesn't respond to unsigned questions)
      "der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 190D 2.2 229Kmi (retired)

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