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MB 300D W123 sedan
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Discussion Starter #1
I was over at my friends place yesterday. When the time was "go home time", it was at that time my problems started. I was sitting in my 300D w123 1980 MB and tried to start it, but without luck. It sounded like it was out of batterypower. My friend got some cabels out and connected them to my battery. Then when I tried to start the car, a cabel from the dynamo (car generator?) to the batteries ( - ) poll melted!

What the heck happend here? Today I tried to replace the power cabel. Guess what! The new cabel melted.[?]
 

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2017 Police Interceptor Utility, 2017 Police Interceptor Sedan
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7,747 Posts
You have a short in the generator (in the US we say alternator), in my opinion.
 

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MB 300D W123 sedan
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5 Posts
Discussion Starter #3
Do I need to get a new alternator? Or is it possibel to fix?

Is this a known problem?
 

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1984 300D Turbo
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RE: Electrical problem

10-1 you have a shot voltage regulator, which you
can replace.
 

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2017 Police Interceptor Utility, 2017 Police Interceptor Sedan
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RE: Electrical problem

84300DTurbo - 4/12/2005 9:09 AM

10-1 you have a shot voltage regulator, which you
can replace.
I'm not entirely sure about the diesels, but on my 280E, the voltage regulator is built-in with the alternator.

I don't know about Norway, but here in Mpls, your alternator can be had for as low as about $110.
 
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