wire from distributor to coil - Mercedes-Benz Forum
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post #1 of 14 (permalink) Old 07-30-2011, 12:18 PM Thread Starter
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wire from distributor to coil

I need to replace the wire that runs from the distributor to the coil on my 73 450 sl. I cant seem to find one anywhere online. If anyone has replaced this wire, where were u able to get it? It needs to have the end on it where it connnects to the distributor. Thanks
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post #2 of 14 (permalink) Old 07-30-2011, 12:28 PM
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Typically the coil lead to the distributor is part of an ignition wire set. Web vendors aren't gong to sell individual wires. Local parts stores will have universal coil leads.

But MB might have individual leads. Check the EPC.
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post #3 of 14 (permalink) Old 07-30-2011, 11:09 PM
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I was able to get one from an Independent shop that had been in business for quite a while. They ad the bulk cable, the ends, and the hoods separately. I think I got it for about $12.00 all told. And one of the guys put it together for me.

Scott

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post #4 of 14 (permalink) Old 07-31-2011, 05:02 AM Thread Starter
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This is the wire that runs from the base of the distributor to the coil, not the one from the distributor cap to the top of the coil.
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post #5 of 14 (permalink) Old 07-31-2011, 06:59 AM
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The green wire that leads to the condenser and points? You can replace it with proper gauge wire and crimp or solder a new end on it.
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post #6 of 14 (permalink) Old 07-31-2011, 10:58 AM
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With your year, you should have a D-Jet ignition system. You should have a green wire going from the breaker points in the bottom of the Dizzy to a terminal on the switchgear. My '75 gear is right behind the driver's side headlight. There should be another wire going from the primary side of the coil to the switchgear. The switchgear does the actual switching of the coil(higher current/voltage), while the breaker points just send a (low current, lower voltage) signal to the switchgear. This is supposed to extend the life and reliability of the breaker points, while giving a better signal pulse to the coil.

If there is a special connector at the switchgear for your particular year, it may be necessary to go to M-B, or start to haunt scrapyards.

An explanation of the ignition circuit can be found in the online CD-ROM version of the manual here: Model 107

look for document 075.519.pdf after you click on your particular year/model.

Scott

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post #7 of 14 (permalink) Old 07-31-2011, 11:18 AM
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I have a 76 450SL that is getting parted out. Would this have the same setup as your? Don't really know much about 450's.

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post #8 of 14 (permalink) Old 07-31-2011, 01:41 PM
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Originally Posted by watchmedoit View Post
This is the wire that runs from the base of the distributor to the coil, not the one from the distributor cap to the top of the coil.
This line should actually go to a connector located just below the coil near the resistors (Item 7 in sketch below shown with V pointing to it.)

The mb part you need is A 0001596918. I have switched to Pertronix so don't have that wire on my car any longer, but I do happen to have an unopened one in amongst my spare parts (see pic). This one is not same as the original wire. It includes the green wire, plus a black ground wire with terminals to connect to distributor and chassis ground at other end and the sleeve that fits into the distributor body.

You might consider replacing points with Pertronix 1885. Only cost about $70.00 (probably less than OE cable!) and eliminates having to ever fool with points again.
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post #9 of 14 (permalink) Old 07-31-2011, 07:04 PM
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Pictures and communication would help. Why do you need to replace the wire?
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post #10 of 14 (permalink) Old 07-31-2011, 07:24 PM
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Pictures and communication would help. Why do you need to replace the wire?
Just as an aside, Jim...the wire from the ECU to the coil (the one with the big round connector) on the 280 SL in NLA.

If you happen to have one kicking around.......or anybody for that matter I would love to have it as mine is cracked at the connector. I dipped it in Gravel Guard (liquid rubber) to seal the crack but a better one would be nice.

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