RE: [diesel_mercedes] Charging problems

 

Without the headlights and AC do you have the same issue?    Are the alternators internally or externally

regulated on these?  I do not know.   What is the battery voltage at idle and bring it up to 2000 rpm?   Should be around 14.1 volts

at idle and 2000 rpm.

 

From: diesel_mercedes@yahoogroups.com [mailto:diesel_mercedes@yahoogroups.com]
Sent: Saturday, August 29, 2015 11:38 AM
To: diesel_mercedes@yahoogroups.com
Subject: [diesel_mercedes] Charging problems

 

 

We've developed an interesting problem on our 560SEL another 126 with a similar layout.  While driving with the headlights or AC on at approx 50mph the red warning light on the dash sttatring glowin.  The strange thing is the brightness increased as the engine speed increased.  I tried one of the plug in testers and it showed normal batter condition and the alternator operating properly.  I checked the battery connections and verified the water level in the battery.  I haven' checked the terminal block on the fender or the engine grounds yet.  Is there anything else we should check?

 

--

Al Boucher


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Posted by: "Atwood,Warren" <Warren.Atwood@altramotion.com>
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