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I had my doubts, but not any more...

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Old Jun 27, 2025 | 11:46 PM
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  #26  
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W205C43PFL
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Read this thread as well, I listed a bunch of post that other forum members posted of which helped with the process: https://mbworld.org/forums/c450-c43-...-oil-flow.html
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Old Jun 28, 2025 | 12:07 AM
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W212 MY'14 M276-3.5NA @75kMi
TT on MOD-0
Originally Posted by Mr. J
Folks with the 3.0 TT, HOW THE HECK DID YOU REACH THIS PLUG?
Facing the motor it should be just left and behind the intercooler right?
Short of pulling the intake ductwork is there any other disassembly needed?

Thanks
You can remove belly pan to access pump solenoid connector from below.

That access is more straight forward than top side with charge pipes.

Read around provided links... it's been done already ✌️
Last edited by CaliBenzDriver; Jun 28, 2025 at 12:09 AM.
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Old Jun 28, 2025 | 12:12 AM
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Originally Posted by CaliBenzDriver
You can remove belly pan to access pump solenoid connector from below.

That access is more straight forward than top side with charge pipes.

Read around provided links... it's been done already ✌️
From the bottom is really the way to go, if I wasn't stubborn with going from the top, I would had saved 3 weeks
It was so easy once you drop the belly pan, you see it right away and then it takes like 20 seconds or even less.
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Old Jun 28, 2025 | 07:13 AM
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W212 MY'14 M276-3.5NA @75kMi
Originally Posted by W205C43PFL
From the bottom is really the way to go, if I wasn't stubborn with going from the top, I would had saved 3 weeks
It was so easy once you drop the belly pan, you see it right away and then it takes like 20 seconds or even less.
ALT-LIN was even harder to access with all the charge pipes in the way and no easy cover to pop


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Old Jun 28, 2025 | 11:21 PM
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Originally Posted by CaliBenzDriver
ALT-LIN was even harder to access with all the charge pipes in the way and no easy cover to pop

Mhmm : )
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Old Jun 29, 2025 | 03:23 PM
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C450, GLC43
Thanks guys.
I figured it would be a heck of a lot easier from underneath. I don't have a lift hence me trying the hard way. I could snake my arm in there and get the little sucker in my grasp, but there was no way for me to release the clip one handed without line of site on it. Anyone who can must have phenomenal dexterity.

Thanks for all your help and quick replies.
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Old Jun 29, 2025 | 06:52 PM
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W212 MY'14 M276-3.5NA @75kMi
NICE & EASY
Originally Posted by Mr. J
Thanks guys.
I figured it would be a heck of a lot easier from underneath. I don't have a lift hence me trying the hard way. I could snake my arm in there and get the little sucker in my grasp, but there was no way for me to release the clip one handed without line of site on it. Anyone who can must have phenomenal dexterity.

Thanks for all your help and quick replies.
It's always a lot of fun to figure things out.

These ECU can really deliver strong driveability when given a chance. It thrives on timings predictability.

Stock setup is like a blank slate ready to be dialed-in.
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Old Jun 30, 2025 | 11:42 PM
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Originally Posted by Mr. J
Thanks guys.
I figured it would be a heck of a lot easier from underneath. I don't have a lift hence me trying the hard way. I could snake my arm in there and get the little sucker in my grasp, but there was no way for me to release the clip one handed without line of site on it. Anyone who can must have phenomenal dexterity.

Thanks for all your help and quick replies.
Happy to have you join us in enjoying these mods, please let us know your experience once it is unplugged, it should be a great improvement.
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Old Jun 30, 2025 | 11:43 PM
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  #34  
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Originally Posted by CaliBenzDriver
It's always a lot of fun to figure things out.

These ECU can really deliver strong driveability when given a chance. It thrives on timings predictability.

Stock setup is like a blank slate ready to be dialed-in.
The restriction from MB Germany really limits the full potential of the vehicle.
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Old Jul 1, 2025 | 01:00 AM
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Originally Posted by W205C43PFL
The restriction from MB Germany really limits the full potential of the vehicle.
Yes, it seriously does!
"saving gas" is amazin' tale
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Old Jul 1, 2025 | 04:29 AM
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Originally Posted by CaliBenzDriver
Yes, it seriously does!
"saving gas" is amazin' tale
Ah...yes.
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