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  #1  
Old September 14th, 2013, 08:49 PM
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Oscar
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Alternator Connections

I have a 200TDi. Today I mistakenly pulled the spade connector out the back of the alternator thinking there would only be one place to connect it back. Turns out there are three male tabs side by side.

What are the tabs? Does it matter where I plug the female spade back in? What does this one wire do?

If I'm looking at the back of the alternator (or this picture I posted of a similar one I found on google) I put the connector on the far right male tab.

Any advice? I haven't connected the battery and wont until I get some advice.

Thanks

Oscar
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  #2  
Old September 14th, 2013, 09:34 PM
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Robert Davis
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Who knows without more info...

Oscar:

In the picture you show, there are 2 3/8" spades and 1 1/4" spade.
The 3/8" spades can be reversed so doesn't matter where it goes.
The 1/4" can only go it the upper most position.

The 3 spades note Field (1/4" spade), positive (1/4" spade), positive (3/8") spade.
Some have 2 3/8" spades like your picture.

Field wire that charges your field and creates the electrical field so your alternator produces positive current (and operates your red alternator warning light). This wire is brown with yellow stripe or yellow. The rest of the wires are brown.

Originally there was a 3 wire plug that prevented getting the 2 1/4" spades mixed up.
So you do not have a 1/4" positive plug and don't know which spade your field plugs into.
Going from memory the field spade plugs into the 1/4" spade on the end.

Leave it unplugged and switch on the key.
The alternator warning light will not glow.

Now plug it on the end and switch on the key.
The alternator light should glow.
start the engine and the alternator light should go out.
You got it.

If this doesn't happen as described above, then plug into the other terminal (that matches your spade size) and repeat the test.

Hope this helps
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  #3  
Old September 14th, 2013, 10:48 PM
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Paul McConnell
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Autosparks/Britishwiring sell the proper 3-way connector -

http://www.autosparks.co.uk/product_...oducts_id=1218

http://www.britishwiring.com/16-ACR-...lug-p/c801.htm




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  #4  
Old September 14th, 2013, 11:07 PM
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Oscar
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Robert,

I was worried that I could damage the alternator by experimenting. I'll give it a try tomorrow. Thanks for the advice.

I only have the one wire and its definitely brown, but I cant say for certain if it has a stripe from memory.

Paul,

If I had that connector I'd be golden!
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  #5  
Old September 15th, 2013, 08:37 AM
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The big terminals are +12V to the battery. They are connected together. The small is to the battery light. You need a charge light connector or the alternator will not turn on.
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  #6  
Old September 15th, 2013, 04:13 PM
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Oscar
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Connected the 1/4 female to the 1/4 tab. key on battery light on. truck running battery light is out. All looks normal.

Took a closer look and the brown wire has a black stripe.

Thanks again for all the help gentlemen.

Oscar
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