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Old 08-25-2015, 01:06 PM
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Plug wires same for M127.982 as .984?

I am planning to order a set of spark plug wires that are listed as compatible with engine M127.982 but I believe my '62 220se coupe's engine is a .M127.984 version, or should be. I cannot read the tag any longer on the block but have no reason to believe it isn't a .984 type. Is there any reason I can't/shouldn't use the set made for a sedan? Curious if they are exactly the same or if there is some difference in lengths, type, etc. that I'm not considering or maybe something relating to the coil wire?

If it matters I use NGK BP5ES non-resistor plugs (and are quite pleased with them).
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1962 220SE W111 Coupe, 2nd owner

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Old 08-25-2015, 01:19 PM
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Do you have a subscription to the Mercedes Benz Electronic Parts Catalog? The EPC is free for non-professional use to owners like us. You can search by vehicle type or put in a part number and see all of the models that use it.

The URL is: epc.startekinfo.com/
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1962 220Sb ~ The Emerald Bullet http://www.youtube.com/watch?v=hx6tN1W48_o
1957 Ponton 220S

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Old 08-25-2015, 09:18 PM
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You might have to break down and visit the dealer. I have bought wires from the dealer before and they will sell you the spark plug end, the distributor end and the wire and you then build them up yourself. The ends just screw on to the wire which you cut to length. The brand is usually BERU but sometime the only thing they have is Bosch.

It might be more expensive but at least you would get the exactly right thing.

As old as your car is the engine could have been swapped. I think the exhaust manifolds are different between the engines so that would be one way to tell. That is if you can find photos of each engine showing the exhaust manifold.
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Old 08-25-2015, 09:42 PM
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FWIW I believe a set of sedan plug wires and coupe plug wires are the same, and I think that BP6ES is slightly more correct, but not enough to matter.
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Old 08-26-2015, 04:55 PM
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Thanks to all!

I have a Mac so the EPC does not work for me, I wish it would be modernized.

I may build the wire set at some point but really wanted to use something ready to go for now, and just not use the wire bracket as you need the cap off one end to achieve this.

I'll look into the plug recommendation, thanks!
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1962 220SE W111 Coupe, 2nd owner

http://img.photobucket.com/albums/v3.../SideSmall.jpg

The Coupe Group (W111/112 coupes and cabs) official website
The Coupe Group on Facebook
MotoArigato: Roadworthy News & Humor
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  #6  
Old 08-26-2015, 07:50 PM
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Quote:
Originally Posted by Marrs View Post
I have a Mac so the EPC does not work for me, I wish it would be modernized.
It's worth buying a $350 laptop just to have EPC

Quote:
Originally Posted by Marrs View Post
I may build the wire set at some point but really wanted to use something ready to go for now, and just not use the wire bracket as you need the cap off one end to achieve this.
My recommendation is Bosch 09023 which I was able to buy for $35 and free shipping. Solid copper core, 1k ohm resistance. You can still use the wire bracket since you can unscrew one end of the wire to make it work. I did this on my 300SE and it worked fine except for the #1 plug which is at 90 degress on Bosch 09023 and doesn't work on an M189 engine but does work I think on all the others.

Easy Peasy and Prime fast.
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