Those symptoms indicate a failed regulator that's not reducing the field current to maintain the target output voltage. Cheap and simple fix, but don't delay too long or you'll cook the battery.
Scott Ritchey Kittrell NC 1982 300SD 220K 1979 300TD 350K -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Peter Frederick Sent: Thursday, December 29, 2005 12:33 AM To: Mercedes Discussion List Subject: Re: [MBZ] Alternator light Hmm, now that's interesting, as the light is brighter at high rpm and nearly goes out at idle! Quite the opposite of the normal worn out brushes behavior (I've had Bosch alternators for quite a few years now, staring in 1978....) Overvoltage makes me think of a loose wire. Will have to check tomorrow. Belt tension is fine (checked that first thing, I've had the tensioner spring break), and I think the fuses are all good. Peter _______________________________________ http://www.striplin.net For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://striplin.net/mailman/listinfo/mercedes_striplin.net