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  #1  
Old 01-19-2011, 09:55 AM
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Join Date: Aug 2010
Location: Greenville, South Carolina
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W110 alternator woes

Hey Guys, i've got a 66 200D, and the alternator does not seem to be working properly. I have 2 batteries that i change out of the benz, whilst one is charging at home (or is charged). But i'm about to install a sound system, and some fog lights to my car and need to have a proper alternator to keep the battery charged, as I'm sure the new additions will draw more power than it normally uses. Any suggestions on how to test the alternator? Thanks in advance!

Zach

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  #2  
Old 01-19-2011, 12:12 PM
WANT '71 280SEL's Avatar
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Location: Dallas, TX
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It's probably the regulator which fortunately can be removed easily with the alternator still in the car. It should only cost about $15, tops, and it is held to the back of the alternator with two screws. Contact Phil at Fastlane for a replacement. They may not have it listed in the online catalog, but he can get it so it's best to give him a ring.

Best Regards,

David
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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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  #3  
Old 01-19-2011, 12:53 PM
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Thanks for the informative response David, it's much appreciated!
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  #4  
Old 01-19-2011, 01:02 PM
WANT '71 280SEL's Avatar
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http://img.eautopartscatalog.com/hires/W01331635651KAE.JPG?width=300&height=300

This isn't the one for your specific car, but they all pretty much look alike. Also, I may have been off on the price a bit, but I still don't think $20-$25 is bad to get your alternator working again.

Best Regards,

David
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2000 Honda Accord V6 137k miles

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  #5  
Old 01-19-2011, 06:02 PM
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Location: Long Island, NY
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That's the "modern" integral regulator. Your W110 might have one on the inner fender skirt. Look for a electrical connector on the back of the alternator and follow the wires to a metal can.

Thx -CTH
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  #6  
Old 01-20-2011, 12:23 AM
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The alternator is on 35 amps which will run the car fine in stock form. Once you start adding some more modern devices, it won't be able to keep up. Replace it with a later model, such as a W126 80 amp alternator with an internal regulator and you will be fine.

BTW, take the alternator to a parts place and they will check it.

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Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

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