Phantom Limp Mode; Did I Blow My Turbos?
MBWorld Fanatic!
Joined: May 2006
Posts: 1,319
Likes: 251
From: Virginia
W212 M276 DELA 30 ; W211 M113k, W126 M117, W126 OM617, W211 OM642 ; R107 M117 X2, Sierra 1500 LZ0
I think I've seen you on the mb subreddit then. I'm running a jb4 on mine, no idea what it's making though. I'm going above what Burger recommends, but their recommendations are for the 43 version of the motor, so far no CELs, but also only 47K
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Junior Member
Joined: Oct 2021
Posts: 55
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2016 Mercedes E400 4MAITIC
I definitely do post in there from time to time showing my car or asking for help lol. How do you like your tune, and is it aggressive or safe. Can you tell me more about the jb4? never heard of it, only renntech when i was looking for tunes prior to actually getting it done.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
i can see that being a cause. i mentioned earlier they got me such a significant power boost for half of what others were charging and i would've gotten less gains.
my power greed did me in (if it truly is a poor tune). i just don't understand how it could be fine and suddenly cause issues
my power greed did me in (if it truly is a poor tune). i just don't understand how it could be fine and suddenly cause issues
I don't know what the tune does but part of it could be increasing the fuel rail pressure. A scanner could show you if that pressure is where it needs to be, i.e. at 170 bar minimum when car moves.
MBWorld Fanatic!
Joined: May 2006
Posts: 1,319
Likes: 251
From: Virginia
W212 M276 DELA 30 ; W211 M113k, W126 M117, W126 OM617, W211 OM642 ; R107 M117 X2, Sierra 1500 LZ0
I definitely do post in there from time to time showing my car or asking for help lol. How do you like your tune, and is it aggressive or safe. Can you tell me more about the jb4? never heard of it, only renntech when i was looking for tunes prior to actually getting it done.
If not, just search online for BMS and Mercedes
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 55
Likes: 21
2016 Mercedes E400 4MAITIC
Get a scanner. iCarsoft MB II for about $200 and you can read the fuel pressure.
I don't know what the tune does but part of it could be increasing the fuel rail pressure. A scanner could show you if that pressure is where it needs to be, i.e. at 170 bar minimum when car moves.
I don't know what the tune does but part of it could be increasing the fuel rail pressure. A scanner could show you if that pressure is where it needs to be, i.e. at 170 bar minimum when car moves.
Member
Joined: Jul 2020
Posts: 224
Likes: 180
From: NE
S212 E350 Estate
Burger motor sports (BMS) are really popular in the BMW world and became that way by tuning up their 3 liter inline 6 turbos (n54 and now N55). They've expanded and offer the same piggy back modules for our motors. It is a piggyback that also connects to your obdII to monitor realtime sensor readings and adjust accordingly. It also has bluetooth so you can change maps, log (and graph) everything obdII logs. They have a handful of standard OOB maps, but you can also create your own. It's not as powerful as a full ECU tune, but I really like the flexibility. I'm not sure if mbworld will allow the link, but here's a shot: https://www.n54tech.com/forums/showthread.php?t=28003
If not, just search online for BMS and Mercedes
If not, just search online for BMS and Mercedes
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 55
Likes: 21
2016 Mercedes E400 4MAITIC
Burger motor sports (BMS) are really popular in the BMW world and became that way by tuning up their 3 liter inline 6 turbos (n54 and now N55). They've expanded and offer the same piggy back modules for our motors. It is a piggyback that also connects to your obdII to monitor realtime sensor readings and adjust accordingly. It also has bluetooth so you can change maps, log (and graph) everything obdII logs. They have a handful of standard OOB maps, but you can also create your own. It's not as powerful as a full ECU tune, but I really like the flexibility. I'm not sure if mbworld will allow the link, but here's a shot: https://www.n54tech.com/forums/showthread.php?t=28003
If not, just search online for BMS and Mercedes
If not, just search online for BMS and Mercedes
Get a scanner. iCarsoft MB II for about $200 and you can read the fuel pressure.
I don't know what the tune does but part of it could be increasing the fuel rail pressure. A scanner could show you if that pressure is where it needs to be, i.e. at 170 bar minimum when car moves.
I don't know what the tune does but part of it could be increasing the fuel rail pressure. A scanner could show you if that pressure is where it needs to be, i.e. at 170 bar minimum when car moves.
Its now 1AM EST and after a few hours of putting turbos under heavy load and highway cruising at 85-95mph, the car has not gone into limp mode. Everything seems to be fine (for now). Can anyone chime in, is that possible for too much oil to mess with the turbos like that?
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MBWorld Fanatic!
Joined: May 2018
Posts: 6,600
Likes: 6,547
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
How did oil overfilled occurred in the first place ?
This 3.0 TT takes in only 6.5 - 6.7 liter of engine oil, with oil filter change.
I hope it is not fuel dilution into engine oil, which is not so obvious by look (if say only 0.5Liter )compared to coolant dilution into engine oil.
I seen a 22 liter engine oil capacity big marine diesel, overfilled by 4 liter and the aftercooler clogged.
That engine design was using aftercooler vacuum for its diesel fuel injection governor system for final WOT RPM .
So the clog caused the engine to not able achieve WOT, that simple. It was a 1995 680HP V8 MAN, non electronic, purely mechanical.
I don't really know how 3.0 TT M276 oil vapor separation would handle overfilled engine oil, but if also your aftercooler get oil load, do keep this in mind
when next troubleshooting.
On M276 3.0TT, there is a Y31/5 turbo pressure transducer.
See page 5 of the attached document
Its easy to remove and undo the hoses, maybe take a look if those hoses internally are wet with oil.
It does not look like a MAP sensor, its cylinder shaped , like a 3/4" pipe.
This 3.0 TT takes in only 6.5 - 6.7 liter of engine oil, with oil filter change.
I hope it is not fuel dilution into engine oil, which is not so obvious by look (if say only 0.5Liter )compared to coolant dilution into engine oil.
I seen a 22 liter engine oil capacity big marine diesel, overfilled by 4 liter and the aftercooler clogged.
That engine design was using aftercooler vacuum for its diesel fuel injection governor system for final WOT RPM .
So the clog caused the engine to not able achieve WOT, that simple. It was a 1995 680HP V8 MAN, non electronic, purely mechanical.
I don't really know how 3.0 TT M276 oil vapor separation would handle overfilled engine oil, but if also your aftercooler get oil load, do keep this in mind
when next troubleshooting.
On M276 3.0TT, there is a Y31/5 turbo pressure transducer.
See page 5 of the attached document
Its easy to remove and undo the hoses, maybe take a look if those hoses internally are wet with oil.
It does not look like a MAP sensor, its cylinder shaped , like a 3/4" pipe.
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 55
Likes: 21
2016 Mercedes E400 4MAITIC
How did oil overfilled occurred in the first place ?
This 3.0 TT takes in only 6.5 - 6.7 liter of engine oil, with oil filter change.
I hope it is not fuel dilution into engine oil, which is not so obvious by look (if say only 0.5Liter )compared to coolant dilution into engine oil.
I seen a 22 liter engine oil capacity big marine diesel, overfilled by 4 liter and the aftercooler clogged.
That engine design was using aftercooler vacuum for its diesel fuel injection governor system for final WOT RPM .
So the clog caused the engine to not able achieve WOT, that simple. It was a 1995 680HP V8 MAN, non electronic, purely mechanical.
I don't really know how 3.0 TT M276 oil vapor separation would handle overfilled engine oil, but if also your aftercooler get oil load, do keep this in mind
when next troubleshooting.
On M276 3.0TT, there is a Y31/5 turbo pressure transducer.
See page 5 of the attached document
Its easy to remove and undo the hoses, maybe take a look if those hoses internally are wet with oil.
It does not look like a MAP sensor, its cylinder shaped , like a 3/4" pipe.
This 3.0 TT takes in only 6.5 - 6.7 liter of engine oil, with oil filter change.
I hope it is not fuel dilution into engine oil, which is not so obvious by look (if say only 0.5Liter )compared to coolant dilution into engine oil.
I seen a 22 liter engine oil capacity big marine diesel, overfilled by 4 liter and the aftercooler clogged.
That engine design was using aftercooler vacuum for its diesel fuel injection governor system for final WOT RPM .
So the clog caused the engine to not able achieve WOT, that simple. It was a 1995 680HP V8 MAN, non electronic, purely mechanical.
I don't really know how 3.0 TT M276 oil vapor separation would handle overfilled engine oil, but if also your aftercooler get oil load, do keep this in mind
when next troubleshooting.
On M276 3.0TT, there is a Y31/5 turbo pressure transducer.
See page 5 of the attached document
Its easy to remove and undo the hoses, maybe take a look if those hoses internally are wet with oil.
It does not look like a MAP sensor, its cylinder shaped , like a 3/4" pipe.
I will check the hoses on my next free day, and to be honest I'm not sure how it got overfilled. I got an oil change from the actual stealership about 2 months ago and everything was fine up until the incidents. Thanks for attaching this so i can see it!
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
My own thinking is simply that when oil is too high the crank shaft cranks hit the oil surface in the pan and works like a mixer causing oil to mix with air and foam up. This results in low oil pressure as it is kind of difficult for the oil pump to pump the foam.
Nothing else needs to be wrong for losing oil pressure in any part of the engine.
If anybody has better knowledge on this please advice.
MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
Likes: 1,011
From: Miami, FL
2003 CL 600
Exactly that, too much oil makes it contact the rotating parts, which whip it up into a froth, and that froth can't hold pressure due to the air compressing. So too much oil will actually cause a loss of oil pressure with sustained RPM, as eventually the oil aerates enough. Too much and it will start to suck into the PCV system and you will see it burning out the exhuast, but it doesn't have to be 3-4qts higher to cause issues.
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 55
Likes: 21
2016 Mercedes E400 4MAITIC
I have never seen any explanation as why overfilling the engine is bad and why you would have low oil pressure with it.
My own thinking is simply that when oil is too high the crank shaft cranks hit the oil surface in the pan and works like a mixer causing oil to mix with air and foam up. This results in low oil pressure as it is kind of difficult for the oil pump to pump the foam.
Nothing else needs to be wrong for losing oil pressure in any part of the engine.
If anybody has better knowledge on this please advice.
My own thinking is simply that when oil is too high the crank shaft cranks hit the oil surface in the pan and works like a mixer causing oil to mix with air and foam up. This results in low oil pressure as it is kind of difficult for the oil pump to pump the foam.
Nothing else needs to be wrong for losing oil pressure in any part of the engine.
If anybody has better knowledge on this please advice.
Exactly that, too much oil makes it contact the rotating parts, which whip it up into a froth, and that froth can't hold pressure due to the air compressing. So too much oil will actually cause a loss of oil pressure with sustained RPM, as eventually the oil aerates enough. Too much and it will start to suck into the PCV system and you will see it burning out the exhuast, but it doesn't have to be 3-4qts higher to cause issues.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
Likes: 1,293
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
Thank you both for the explanation as i was totally lost as to how overfilling could create such an issue. Just stopping in to say thanks, and to update that the issue has not happened since the drain and refill to appropriate levels. Fingers crossed this is a permanent fix lol.
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From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
.Summary: you need to understand and be certain where that extra fluid came from to sleep better, and enjoy it even more
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 55
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2016 Mercedes E400 4MAITIC
Hello, probably a dead thread since I'm not quoting anyone anymore. Just updating to say the car has been fine ever since the oil change
& thanks juanmor40 for the protip
& thanks juanmor40 for the protip
