M275 V12 Bi-Turbo Platform Technical discussion relating to models sharing the M275 V12 Bi-Turbo (V12 TT). Including SL600, SL65 AMG, CL600, CL65 AMG, S600, S65 AMG.
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Misfires in 7, 8, 9, 10, 11, 12.

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Old Oct 25, 2020 | 11:34 PM
  #1  
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Exige S | V70R | CTS-V wagon | JKUR | 13 S65 (Mocha/Armagnac)
Misfires in 7, 8, 9, 10, 11, 12.

Prior owner replaced plugs, plug tubes/seals, and both ignition coil packs within the last 5,000 miles. My troubleshooting and research suggests voltage transformer.

Please let me know if renting one from v12cpack.com is the best way to move forward.

Thank you.
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Old Oct 26, 2020 | 03:02 PM
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That's definitely what I would do.
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Old Oct 27, 2020 | 05:45 PM
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Originally Posted by JJKCMO
Prior owner replaced plugs, plug tubes/seals, and both ignition coil packs within the last 5,000 miles. My troubleshooting and research suggests voltage transformer.

Please let me know if renting one from v12cpack.com is the best way to move forward.

Thank you.
you have the problem I show here
one side
https://mbworld.org/forums/m275-v12-...r-upgrade.html

post 10
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Old Oct 29, 2020 | 09:40 PM
  #4  
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Exige S | V70R | CTS-V wagon | JKUR | 13 S65 (Mocha/Armagnac)
Swapped the voltage transformer with a MB reman unit - v12ci.com is out of upgraded units and is apparently going to release an all new, redesigned part.

This one was $500 shipped from Husker Benz in Lincoln, NE.

I see a fair amount of bubbling, is that enough to be sure it was my issue?

https://imgur.com/gallery/5dFSwgz




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Old Oct 29, 2020 | 10:03 PM
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Absolutely, that is a problem. There's no such thing as "an acceptable amount of melting" when it comes to electronic components, ESPECIALLY capacitors (that is a capacitor).

Interesting that v12icpack.com is coming out with a redesigned/improved version - thanks for passing on that information.

Last edited by brucewane; Oct 29, 2020 at 10:06 PM.
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Old Oct 30, 2020 | 04:36 AM
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Originally Posted by JJKCMO
Swapped the voltage transformer with a MB reman unit - v12ci.com is out of upgraded units and is apparently going to release an all new, redesigned part.

This one was $500 shipped from Husker Benz in Lincoln, NE.

I see a fair amount of bubbling, is that enough to be sure it was my issue?

https://imgur.com/gallery/5dFSwgz


it is easy to see most of the time
remove the black top and plastic and look at my pictures on the one I repaired
the top on the failing one is no longer flat
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Old Oct 30, 2020 | 04:40 AM
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I still need old transformers to proceed with my project
anyone who is willing to participate PM me
I know the world is very selfish, but maybe one day some will think helping other out instead of leeching
thx
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Old Oct 30, 2020 | 08:36 PM
  #8  
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Exige S | V70R | CTS-V wagon | JKUR | 13 S65 (Mocha/Armagnac)
You want my old part? Not trying to be dense, just trying to make sure I understand.
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Old Oct 31, 2020 | 02:29 AM
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Originally Posted by JJKCMO
You want my old part? Not trying to be dense, just trying to make sure I understand.
Well, I was very very busy lately, but have more time now and the repair project is really exiting
I put my spare one in parts to make a clear print of the device
I am of course running the other one I repaired RUNS GREAT
So I would need one or two more
1 to confirm the problem I found is what happens most of the time, I am pretty sure it is
so everybody willing.... yes I would be very happy
posting on my charge of course
then I could finish this project

Donors will get a mention of course
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Old Oct 31, 2020 | 12:32 PM
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Originally Posted by JJKCMO
Swapped the voltage transformer with a MB reman unit - v12ci.com is out of upgraded units and is apparently going to release an all new, redesigned part.

This one was $500 shipped from Husker Benz in Lincoln, NE.

I see a fair amount of bubbling, is that enough to be sure it was my issue?

https://imgur.com/gallery/5dFSwgz
There's only one way to be sure that was the cause of your problem -- did the problem go away?
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Old Oct 31, 2020 | 10:15 PM
  #11  
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Exige S | V70R | CTS-V wagon | JKUR | 13 S65 (Mocha/Armagnac)
Originally Posted by DaleB
There's only one way to be sure that was the cause of your problem -- did the problem go away?
It did.
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Old Nov 1, 2020 | 03:50 PM
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Originally Posted by JJKCMO
It did.
So you don't feel like participating I presume
happy I helped you out then
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