---> CALI's hands-on ... STABLE CHASSIS VOLTAGE !!!
Thread Starter
Out Of Control!!
Joined: Apr 2019
Posts: 12,058
Likes: 6,848
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Not for long
success is coming your way.
MS! has been disconnected for years to prevent "drained by driving"... no issue with 14.15V boiling off hydrogen. He has opened a thread for battery test.
12.6V float voltage is better than 14.15V for the chemistry but that's what regulator self-control does.
If we had only a stable 12.6V ECU would adapt ignition timings to it.
What's bad is the great GDI ECU is no able to adapt to that moving target.
ECU adapts a lot of attributes of the ignition multi-sparks but can not deal with the spark variability caused by changing primary coil voltage.
The spark voltage spikes change the precise timing... super touchy.
success is coming your way.
MS! has been disconnected for years to prevent "drained by driving"... no issue with 14.15V boiling off hydrogen. He has opened a thread for battery test.
12.6V float voltage is better than 14.15V for the chemistry but that's what regulator self-control does.
If we had only a stable 12.6V ECU would adapt ignition timings to it.
What's bad is the great GDI ECU is no able to adapt to that moving target.
ECU adapts a lot of attributes of the ignition multi-sparks but can not deal with the spark variability caused by changing primary coil voltage.
The spark voltage spikes change the precise timing... super touchy.
Last edited by CaliBenzDriver; Jan 16, 2025 at 08:07 PM.
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MBWorld God!
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So, the SL400 seems to keep improving. Super cold today with all fluids below freezing at startup (shoulda taken a picture), but shifts were smooth and quick. I was expecting some thumping shifts while the engine and tranny were still cold, but no. As a matter of fact (perception), the car seems to operate better overall.
By the way, I have asked @crconsulting to take a look at this thread and provide any comments since he seems familiar with battery charge balancing and I was wondering if disconnecting the alternator LIN line would screw anything up. But didn't @S-Prihadi post elsewhere that his alternator line has been disconnected for quite some time now?
By the way, I have asked @crconsulting to take a look at this thread and provide any comments since he seems familiar with battery charge balancing and I was wondering if disconnecting the alternator LIN line would screw anything up. But didn't @S-Prihadi post elsewhere that his alternator line has been disconnected for quite some time now?
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nevermind it was this thread: https://mbworld.org/forums/e-class-w...tire-life.html
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@Manny_c450 Any success? Although I am unable to successfully get it done today, I still hope you were successful.
Member
Joined: Mar 2022
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C450
@Manny_c450 Any success? Although I am unable to successfully get it done today, I still hope you were successful.
MBWorld God!
Joined: Dec 2019
Posts: 32,666
Likes: 6,417
Thread Starter
Out Of Control!!
Joined: Apr 2019
Posts: 12,058
Likes: 6,848
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
COIL UPGRADE ???
Not for long
success is coming your way.
MS! has been disconnected for years to prevent "drained by driving"... no issue with 14.15V boiling off hydrogen. He has opened a thread for battery test.
12.6V float voltage is better than 14.15V for the chemistry but that's what regulator self-control does.
If we had only a stable 12.6V ECU would adapt ignition timings to it.
What's bad is the great GDI ECU is no able to adapt to that moving target.
ECU adapts a lot of attributes of the ignition multi-sparks but can not deal with the spark variability caused by changing primary coil voltage.
The spark voltage spikes change the precise timing... super touchy.
success is coming your way.
MS! has been disconnected for years to prevent "drained by driving"... no issue with 14.15V boiling off hydrogen. He has opened a thread for battery test.
12.6V float voltage is better than 14.15V for the chemistry but that's what regulator self-control does.
If we had only a stable 12.6V ECU would adapt ignition timings to it.
What's bad is the great GDI ECU is no able to adapt to that moving target.
ECU adapts a lot of attributes of the ignition multi-sparks but can not deal with the spark variability caused by changing primary coil voltage.
The spark voltage spikes change the precise timing... super touchy.
I wonder if the factory coils can be thought of being crappy weak ??
I know their windings insulation get cooked and breached by extreme heat but I don't know that they can be classified as barbone cheap...
By no mean do I have any misfires, quite the opposite!
We know it's really tough to ignite a lean mixture.
Ignition timing is based on both mixture + spark voltage to ignite combustion.
I just wonder if COP upgrades would yield tougher multi-sparks. I am talking "knock it out of park" type of sparks vs. economy OE style.
The way MB things appear disabled, I dont want to overlook obvious items, like 70/30% chance.
Last edited by CaliBenzDriver; Jan 16, 2025 at 08:51 PM.
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C450
@Manny_c450 Any success? Although I am unable to successfully get it done today, I still hope you were successful.
Will have to try from the bottom unfortunately.. maybe tomorrow.
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If you do end up going from the bottom tomorrow please kindly do take picture of how it looks from the bottom so we can figure out this mystery. Much appreciated!
Thanks for your update tonight.
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C450
MBWorld God!
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Ya I understand your pain of wanting to get it done tonight, I wanted to too but I lost daylight and my garage is poorly lit, worse was my back pain.
Last edited by W205C43PFL; Jan 16, 2025 at 10:21 PM.
Thread Starter
Out Of Control!!
Joined: Apr 2019
Posts: 12,058
Likes: 6,848
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
ALT-LIN
similarities
your connector looks similar except I'm missing a ziptie on the crown.
- same barrel
- same lock
- same harness
- mounted 90° side vs. rear
Last edited by CaliBenzDriver; Jan 17, 2025 at 12:49 AM.
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https://cimg6.ibsrv.net/gimg/www.mbworld.org-vbulletin/1080x1105/screenshot_20250116_211317_chrome_b3f4764dbd36fe37 d9e4241d7463a17a1b9355e1.jpg
similarities
your connector looks similar except I'm missing a ziptie on the crown.
similarities
your connector looks similar except I'm missing a ziptie on the crown.
- same barrel
- same lock
- same harness
- mounted 90° side vs. rear
MBWorld God!
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If you do end up going from the bottom, please do (if you can) please take a picture of the connector from the bottom and show me and us, it will be much much appreciated and will help a lot to solve the cone mystery and we can see why our connector is different to anything we seen, and why is it designed differently. Thanks in advance!
Joined: Nov 2016
Posts: 7,847
Likes: 3,498
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
I too wish it was the same thing : ( but how do you explain this cone thing, if it is some rubber protector or something, how do I get it off to reveal the familiar plug? https://cimg2.ibsrv.net/gimg/www.mbw...ea654545a4.png
Joined: Nov 2016
Posts: 7,847
Likes: 3,498
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
MBWorld God!
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MBWorld God!
Joined: Dec 2019
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Ya I wish ours looked like that, that would had been a dream come true but ours is a cone shape and no clip to be found. Maybe it will look different from the bottom but even from the top looks nothing like what you shown us. Hopefully forum member Manny_c450 will be able to show us how it looks from the bottom and successfully get his unplugged.
Last edited by W205C43PFL; Jan 17, 2025 at 11:50 AM.
Thread Starter
Out Of Control!!
Joined: Apr 2019
Posts: 12,058
Likes: 6,848
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
SMOOTH + STRONG POWERTRAIN
We see the side mounted connector near ALT +12V OUT-Stud
The "cone hat" is just for harness strain relief on top of exactly the same connector.
As long as it's single wire it's a go for your case!!
(Dual wires need investigation).
The blue ALT-LIN wire home-runs all the way up to ECU were you can switch it On/Off.
+++ Test drive: dynamic self-adaptations !
-- Everything is going in the right direction of ECU/TCU improvements
-- The interactive work of engine learning better fuel map, throttle responsiveness then tranny matching gears does take time just like oil MOD.
Meaning improvements begin right away but take time to settle in for best behaviors we like. Something like 1kMi range. Great driveability with a hint of goofiness in low gear.
-- Throttle improvements are interactive between engine > tranny > engine > tranny > engine...
>>> When you test drive what MOD + ALT-LIN bring back to this platform you understand powertrain is not compliant with variable pressure/voltage. It needs normal stability to work well.
Last edited by CaliBenzDriver; Jan 17, 2025 at 02:25 PM.
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This is great shot, txs JR!
We see the side mounted connector near ALT +12V OUT-Stud
The "cone hat" is just for harness strain relief on top of exactly the same connector.
As long as it's single wire it's a go for your case!!
(Dual wires need investigation).
The blue ALT-LIN wire home-runs all the way up to ECU were you can switch it On/Off.
+++ Test drive: dynamic self-adaptations !
-- Everything is going in the right direction of ECU/TCU improvements
-- The interactive work of engine learning better fuel map, throttle responsiveness then tranny matching gears does take time just like oil MOD.
Meaning improvements begin right away but take time to settle in for best behaviors we like. Something like 1kMi range. Great driveability with a hint of goofiness in low gear.
-- Throttle improvements are interactive between engine > tranny > engine > tranny > engine...
>>> When you test drive what MOD + ALT-LIN bring back to this platform you understand powertrain is not compliant with variable pressure/voltage. It needs normal stability to work well.
We see the side mounted connector near ALT +12V OUT-Stud
The "cone hat" is just for harness strain relief on top of exactly the same connector.
As long as it's single wire it's a go for your case!!
(Dual wires need investigation).
The blue ALT-LIN wire home-runs all the way up to ECU were you can switch it On/Off.
+++ Test drive: dynamic self-adaptations !
-- Everything is going in the right direction of ECU/TCU improvements
-- The interactive work of engine learning better fuel map, throttle responsiveness then tranny matching gears does take time just like oil MOD.
Meaning improvements begin right away but take time to settle in for best behaviors we like. Something like 1kMi range. Great driveability with a hint of goofiness in low gear.
-- Throttle improvements are interactive between engine > tranny > engine > tranny > engine...
>>> When you test drive what MOD + ALT-LIN bring back to this platform you understand powertrain is not compliant with variable pressure/voltage. It needs normal stability to work well.
Member
Joined: Mar 2022
Posts: 79
Likes: 7
C450
Unsuccessful, my back killing me from the top can't imagine crawling down to do this. Can't find tab, can't rid of that protective cone hat you mentioned, I started working on it since noon today till sunset, I am getting nowhere. Hopefully forum member Manny_c450 has better luck. Eager to hear him reporting back.
