[W126 Coupe] 380 died :-( (Mister McGoo)

[Dan Landiss]

Point of information: What breaks down is the voltage regulator/brush 
assembly 
<http://img.eautopartscatalog.com/hires/W01331623408BOS.JPG?width=300&height=300>. 
The three-phase rectifier is a different item. Yes, they do fail. I 
replaced one on the way to our Kansas City Meet a few years ago. The 
same regulator fits many Bosch alternators so I found one at a truck 
repair shop.

on 11/7/2011 4:10 PM Steinar Skånhaug wrote:

>

> Both my 280SE and my 420SEC have died like that. And every time it has 

> been the rectifying unit on the Bosh alternator that had broken down. 

> It's cheap and simple to replace and it's easy to check before you 

> start all the other correct mentioned control points. To check if it 

> is broken: Jump start the car from a fully charged battery. If the 

> voltage does not read +14V with a running engine, but rather lower 

> than 12V, replace the rectifier (with the brushes). This is in our 

> cold country a known sickness of the very good Bosch alternator.

>

>


-- 
The greatest difficulty lies not in choosing between self-interest and the common good, but in knowing the difference.  --Stephen Horn

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