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Old May 7, 2022 | 07:09 PM
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Coil Pack Replacement Cost

Hey guys,
Just wondering what is a reasonable price for coil pack replacement for M177 engine. When it was recently serviced by a euro garage they quoted me $800 AUD per pack (2 coils) + labour. Has anyone had them changed and if so does that seem reasonable?
how much labour is involved in getting them changed. He seemed to be making it out to be a really big deal and a tough task.
appreciate any feedback.
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Old May 7, 2022 | 07:52 PM
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Originally Posted by Manson
Hey guys,
Just wondering what is a reasonable price for coil pack replacement for M177 engine. When it was recently serviced by a euro garage they quoted me $800 AUD per pack (2 coils) + labour. Has anyone had them changed and if so does that seem reasonable?
how much labour is involved in getting them changed. He seemed to be making it out to be a really big deal and a tough task.
appreciate any feedback.
Coils in the US are $240 each. So say $1000 for parts. Probably 0.5 hours labor per coil at $200/hr = $400 in labor. Approx less than $2000 total or A2800.

A800 per coil x 4 = A3200 is too high if it doesn’t include labor.

Last edited by chassis; May 7, 2022 at 07:58 PM.
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Old May 7, 2022 | 08:18 PM
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Thank you 🙏.
So by the sounds of things, not a hugely difficult job to carry out?
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Old May 7, 2022 | 10:30 PM
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It is not particularly difficult but is more of a pain in the butt. A couple hard to reach places that make it annoying, but nothing you couldn't do alone your first time with the help of a YouTube video
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Old May 8, 2022 | 11:44 AM
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Originally Posted by Manson
Hey guys,
Just wondering what is a reasonable price for coil pack replacement for M177 engine. When it was recently serviced by a euro garage they quoted me $800 AUD per pack (2 coils) + labour. Has anyone had them changed and if so does that seem reasonable?
how much labour is involved in getting them changed. He seemed to be making it out to be a really big deal and a tough task.
appreciate any feedback.
Nah bit overpriced coils are $640 each at Mercedes (dealer) here in Sydney per unit I just bought two from Mercedes Alexandria.

They are very easy to replace yourself though. If you buy the part you just take off your airbox (10 minutes) and unplug the coils, wiggle them out and done.
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Old May 8, 2022 | 06:18 PM
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I have 47k miles on my c63s and soon need to replace my spark plugs. Just wondering when does the coil pack need to be replaced?
Should I just replace both spark plugs and coil pack at the same time?
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Old May 8, 2022 | 08:19 PM
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Originally Posted by Jimmy_c63s
Nah bit overpriced coils are $640 each at Mercedes (dealer) here in Sydney per unit I just bought two from Mercedes Alexandria.

They are very easy to replace yourself though. If you buy the part you just take off your airbox (10 minutes) and unplug the coils, wiggle them out and done.
Yeah sweet thanks mate. I’ll give Alexandria a call. Thanks all for the responses.
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Old May 10, 2022 | 01:32 AM
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Originally Posted by Manson
Yeah sweet thanks mate. I’ll give Alexandria a call. Thanks all for the responses.
Cool man. What stops most owners from doing their own coil packs is the airbox that's in the way. It looks like a huge mission at first but once you have a go and take the airbox off the first time you'll laugh at how easy it is.

Let us know how you get on aye.
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Old May 10, 2022 | 10:24 AM
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Originally Posted by Jimmy_c63s
Cool man. What stops most owners from doing their own coil packs is the airbox that's in the way. It looks like a huge mission at first but once you have a go and take the airbox off the first time you'll laugh at how easy it is.

Let us know how you get on aye.
*****The above is true. People get intimidated a bit by all of the wires and the seeming complexity of the air box, or to get to the spark plugs/coils, etc.. There are definitely much harder cars to work on - our C63s is not that bad for this kind of work overall if you have some ok tools, longer and jointed extensions, and a decent eye for removing parts in order and putting it all back together. Taking pics of before versus digging in to it really can help as well.

Don't be afraid of working on your own car. It seems intimidating at first but gets much much easier as you handle small to medium to mebbe bigger projects.

Just take your time, mark everything if needed, and go about doing what has to be done. Be clean, be organized, and you would be surprised what you can do if you take your time.

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Old May 10, 2022 | 01:28 PM
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Originally Posted by MaxVO2
*****The above is true. People get intimidated a bit by all of the wires and the seeming complexity of the air box, or to get to the spark plugs/coils, etc.. There are definitely much harder cars to work on - our C63s is not that bad for this kind of work overall if you have some ok tools, longer and jointed extensions, and a decent eye for removing parts in order and putting it all back together. Taking pics of before versus digging in to it really can help as well.

Don't be afraid of working on your own car. It seems intimidating at first but gets much much easier as you handle small to medium to mebbe bigger projects.

Just take your time, mark everything if needed, and go about doing what has to be done. Be clean, be organized, and you would be surprised what you can do if you take your time.
I will echo this statement. The plugs on this car are quite easy to change, especially compared to something like an e9x M3 (lol). I've done it a couple of times.

Stock air-boxes - once you remove the top portion of the airbox, you can actually leave the bottom portion of the airbox attached via the recirculation hoses (and it just bend it out of the way to access the coilpacks/plugs) - you still need to pop the bottom portion of the airbox off of the holders (idk what they are called)
Coils - wiggle & pull! If you try to pull straight up, you'll have a hell of a time. You can also get some string or a coat hanger and wrap underneath the coil (once you've pulled up a bit) to help get it out. The coil boots are sucked onto the plugs extremely tightly.
Plugs - get a thin-wall spark plug socket. Make sure you have one (or two) pivoting adapters
Fuel Line (drivers side): to remove the rear-most coil pack on the drivers side, you most likely need to unscrew the hard (fuel) line and move it out of the way - make sure you have a rag (or two) to absorb the fuel (not a lot) when undoing the line

Last edited by noremaC; May 10, 2022 at 01:30 PM.
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Old May 10, 2022 | 02:08 PM
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Originally Posted by noremaC
I will echo this statement. The plugs on this car are quite easy to change, especially compared to something like an e9x M3 (lol). I've done it a couple of times.

Stock air-boxes - once you remove the top portion of the airbox, you can actually leave the bottom portion of the airbox attached via the recirculation hoses (and it just bend it out of the way to access the coilpacks/plugs) - you still need to pop the bottom portion of the airbox off of the holders (idk what they are called)
Coils - wiggle & pull! If you try to pull straight up, you'll have a hell of a time. You can also get some string or a coat hanger and wrap underneath the coil (once you've pulled up a bit) to help get it out. The coil boots are sucked onto the plugs extremely tightly.
Plugs - get a thin-wall spark plug socket. Make sure you have one (or two) pivoting adapters
Fuel Line (drivers side): to remove the rear-most coil pack on the drivers side, you most likely need to unscrew the hard (fuel) line and move it out of the way - make sure you have a rag (or two) to absorb the fuel (not a lot) when undoing the line
great advice
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