M279 engine
Thread Starter
Member
Joined: Mar 2015
Posts: 127
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From: Sacramento, ca Area
2006 CL600
M279 engine
Ok, I am curious if the m279 engine which is a m275 with a few changes like block sleeves, heads work, turbos to name the big stuff.
My curiosity is this, the m279 uses single coil packs which are dual spark so there is six single coil packs one for each dual spark cylinder.
Now can we use these coil packs on our m275 engines, or will the Ecu and spark system of the m279 make it not possible?
If not does anyone know of anyone who has (makes) single coil packs for the m275 the 03-06 models?
My curiosity is this, the m279 uses single coil packs which are dual spark so there is six single coil packs one for each dual spark cylinder.
Now can we use these coil packs on our m275 engines, or will the Ecu and spark system of the m279 make it not possible?
If not does anyone know of anyone who has (makes) single coil packs for the m275 the 03-06 models?
MBWorld Fanatic!
Joined: May 2015
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From: Miami, FL
2003 CL 600
The new M/E and harness would have to be used, as it's all different. There is no way to make the new M/E play nice with the old cars using OEM parts.
Just buy two new coil packs and be done with it. 2k and you're good for another 15 years. Not worth adding a bunch of new parts that don't work to try to avoid replacing the stock coils.
Just buy two new coil packs and be done with it. 2k and you're good for another 15 years. Not worth adding a bunch of new parts that don't work to try to avoid replacing the stock coils.
Thread Starter
Member
Joined: Mar 2015
Posts: 127
Likes: 1
From: Sacramento, ca Area
2006 CL600
Coil packs
It's not the coil packs that is my main concern, yes of course if single packs could be used would make it much cheaper, but it is the changing the plugs especially If you have certain mode that put extra stress on the plugs.
I don't want to worry about having to replace an entire coil pack for $700-$800 just to replace my plugs because the coil pack got damaged taking it off, one hell of a plug change cost.
No dealer or Indy shop will guarantee the coil packs if you have them change your plugs, say what you want but your plugs need to be changed more then once every 15 years especially once it gets more and more miles on the engine and performance in mods.
I do have new coil packs but it's been 3 years and I need to check my plugs a couple of them are running a lil rich on my right bank. How awesomely convenient would it be to just remove one single coil pack with flex braided plug connector wires that eliminate the risk of damage to the plug connector and the coil pack!
Anyways that is my interest in single packs.
I don't want to worry about having to replace an entire coil pack for $700-$800 just to replace my plugs because the coil pack got damaged taking it off, one hell of a plug change cost.
No dealer or Indy shop will guarantee the coil packs if you have them change your plugs, say what you want but your plugs need to be changed more then once every 15 years especially once it gets more and more miles on the engine and performance in mods.
I do have new coil packs but it's been 3 years and I need to check my plugs a couple of them are running a lil rich on my right bank. How awesomely convenient would it be to just remove one single coil pack with flex braided plug connector wires that eliminate the risk of damage to the plug connector and the coil pack!
Anyways that is my interest in single packs.
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Joined: Nov 2010
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From: Welwyn, Herts, UK
2006 S600
I agree that coil packs are the unavoidable weak link of the M275 engine, but truth is there are no engines with no weak links, and this one ain't that bad in the big scheme of things.
You have to be pretty heavy handed to break a coil pack, they're fairly strong really. If you lever it out a couple of mm at a time it will be OK. That takes minutes rather than seconds, so not so bad.
If a coil overheats, you can change them individually if you're handy.
Nick
You have to be pretty heavy handed to break a coil pack, they're fairly strong really. If you lever it out a couple of mm at a time it will be OK. That takes minutes rather than seconds, so not so bad.
If a coil overheats, you can change them individually if you're handy.
Nick
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Joined: May 2015
Posts: 4,037
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From: Miami, FL
2003 CL 600
I've removed plenty of coils on customer cars to change plugs, never broken one. If that's a good reason to swap your whole car over to a system that it isn't designed for, that's a really strange way to approach the problem.
If you just changed them 3 years ago and you used proper plug grease inside the boots, they should come right out. The only reason they break is when the boot sticks onto the plug so bad it pulls the coil out of the rail. After the first time they've been changed, this should never be an issue unless the person installing them is just slapping them back without grease.
If you just changed them 3 years ago and you used proper plug grease inside the boots, they should come right out. The only reason they break is when the boot sticks onto the plug so bad it pulls the coil out of the rail. After the first time they've been changed, this should never be an issue unless the person installing them is just slapping them back without grease.
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