The M276 DELA 30 DI BI Turbo V6 Thread
Are they supplying you with a loaner while this is being sorted?
Also, it seems like they should offer either full replacement or buyback. I think there would be minimal expense for replacement whereas buyback requires the value deduction for mileage.
On the assembly issue, it's important to note that substantial portions of these engines are assembled by hand. The processes are not entirely automated. There is too much complexity in the assembly process for full automation to be cost effective.
https://www.cnet.com/roadshow/auto/2...glc43/preview/
I’m an owner of the 2018 GLE 43 AMG Coupe. (I know it is not the same car in the article, but similar design concept). I take the delivery last August and has been enjoying it since. I think it is a very beautiful car. After having it for almost a year, I would still turn my head and look at it when I exit the car. We also own a 2015 C300 4Matic, which my wife drives most of times. I think the article is written to be more entertaining than to offer an unbiased review. Just like washed up comedians all of a sudden want to mock Donald Trump to get noticed. I’m a car enthusiast and I browse a lot of car videos and articles, I do find Mercedes is the brand that people like to target. The line between a journalist and entertainer is very blurry now. People criticize Mercedes unfairly is either because they hold higher standards toward Mercedes products or just want to get attention. Either way, my wife and I are very happy with our cars and have become fans of Mercedes. By the way, the author in the article doesn’t mention that equally equipped Macan GTS is more expensive than GLC43 AMG. When optioning up the Macan, if not careful, it can easily cost more than GLE 43 AMG. Trust me, I do my research when I shop for my GLE Coupe.




like 7-8 months now and older by 6,000KM so far. Now its is 16,000KM old.
I found the attached PDF from MB forum in UK https://f01.justanswer.com/73bbchevy...19b0_intro.pdf
This is real good info, I also attached as PDF just in case the above link gone bad.
NOTE : See page 12, turbo boost is 0.8BAR ( 11.76psi ) and not 26 psi as what others are saying.
Since I bought my 2014 E400 used and I don't follow Mercedes engine development much, M276 engine model is very confusing for me when one mentioned it merely as M276 , without full engine code number.
I think this 3 liter in 333HP version is the least discussed engine of E class W212 and its tips n trick from other users are almost non existence, unlike the normally aspirated 3.5L M276 which is plenty.
This link has good info on M276 history : https://forums.mbclub.co.uk/threads/...thread.191752/
Another confusion is , there is a M276 , BUT 3.5 liter AND bi-turbo, AND the same 245Kw/333HP.......... AND THE SAME EXACT torque of 480Nm , BUT earlier at 1,200-4,000 RPM, instead of 1,600-4,000 RPM of the 3 liter version
https://www.autoevolution.com/news/m...ift-82786.htmlhttps://www.*********.com/content.ph...b-ft-of-torque
As we know , in newer AMG C43, AMG E43 and S450 this V6 3 liter engine get its power boosted up between 362 to 396 HP and 520Nm.
I hope this engine, my 333HP version won't have any major issues, as I would like to keep it till about 2022.
NOW, USER EXPERIENCE :
I like this engine for city driving, it is nice and the low end is good even with what many people called the 7G Plus transmission as "sluggish".
I guess 480 Nm from 1,600 to 4,000 RPM is a good thing and I have no issue with 7G Plus transmission.
I have not pushed this engine real hard yet, but would do it someday, but it will be on fun-drive race circuit and not public road.
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The Best of Mercedes & AMG
Same question on the transmission between the 2015 and 2016 models. Wonder if the 9speed would direct swap into a C/E400/450?




I am curious too on what mods MB did to achieve those extra power where M276 3 liter gets above 333HP.
Personally I won't mod my car engine power, but I really like to know the technical stuff MB does.
Logic is , to get much extra power, one need more fuel , so injector size and turbo maybe bigger and some ECU remap.
If cooling system on 333HP is borderline, MB may up size it for higher horsepower .
I think the best source would be MB tech staff who has got training on both 333HP and higher power version.
If one has access and time to see parts list thru MB WIS/EPC, maybe from there it can be identified what new parts the higher horsepower engine uses.
As to if 7 speed and 9 speed is direct plug and play swap on C/E400/450 it is a high possibility for MB to keep things simple on at least the engine flywheel to gearbox casing mating,
but surely it is not 100% plug n play as we want to imagine, there must be some minor mounting difference somewhere.
Software could be different too to accommodate different engine power and car overall weight and not to forget Mercedes handshake/coding or whatever they call it when one install new major component on the car.
W222 S-class has got 7 speed and 9 speed.
https://en.wikipedia.org/wiki/Merced..._S-Class_(W222)
C200 and C250 2017 model get 9 speed while its older model get 7 speed.
https://www.carlist.my/news/review-2...inement/47438/
So it is do-able for some mod shop with good know how to do a personal swap + mod , but the question is : Is it worth it for a swap cost + its custom headache vs performance gain ?
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In town, given the mounds of torque these engines deliver across that wide power band, you can get most of the same performance just by switching the transmission into Sport mode to stay in the lower gears. Yeah - the 9-speed may be a bit smoother, but truthfully, my 7-speed isn't a bad transmission at all.
As for the durability of the M276 DELA30 twin-turbo V6 engine, I would have no worries. Gonzo (my E400) now has about 31K miles on the clock. He sees redline at least once a day, with more than occasional hard-throttle driving. (Absolutely LOVE that truckload of torque at low speeds.) So far, not a single issue with the engine or transmission. (Shhh. . . don't let Gonzo hear me say that.) This car is loads faster than my old Lexus LS430 V8, and is about the same size, too.




I notice something which does not make sense* on this engine, it is the turbo coolant system which is for reason unknown, shared with the HVAC heater.
I hope I am wrong on this, so please technical wizards on this forum ... help

* I will explain later after photos
The feed ( input ) of the coolant pipe of the turbos, comes from the back of the engine, as shown below.
The return (out) of the turbos coolant pipes are then run to the front of the engine, to meet a Tee connector
The return (out) of the turbos coolant pipes are then run to the front of the engine, to meet a Tee connector
This is where I said : *does not make sense , bear with me for full explanation.
Item 5 is the HVAC electric heater circulation pump
#1 in pink is the return ( out ) of HVAC heater ( heat exchanger ) pipe/hose into a tee which I will show in another photo.
#2 in orange are the two turbos return pipes combined into a Tee as shown on previous photo, and it join the Tee of the #5 electric pump at suction side.
So the emphasize here is, the #5 Electric heater circulation pump, has two sources of hot coolant, one being from the 2 turbos and one from the return of the HVAC heater.
#3 is the return ( out) of the engine radiator, which I don't know why position wise is 90% of the radiator height, instead being on the bottom.... this fat hose final destination
is the engine driven water pump #4. See that this fat hose has a Tee also and the Tee accept the OUTPUT of the electric heater pump.
Continue next post........................




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Holy crap... I think this forum is overloaded, I can't upload photos anymore.
I shall add more photos later when bandwith recovers
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The does not make sense part is this :
This M276 engine does not have the special duo valve or heater shut off valve, whatever the name is like W211, for its HVAC heater coolant flow.
I also can not find parts breakdown in EPC/WIS which show some sort of shut of valve at HVAC heater to prevent coolant flow from engine to HAVC heater heat-exchanger to electric heater circulation pump #5.
The engine coolant flow towards the HVAC heater is surely a pressurized flow, provided by the engine driven water pump. It does not make sense if there is no shut of valve at HVAC heater

Let's assume scenario AA, maybe the #5 electric heater pumps is no-flow type when impeller is not spinning, so it is being used as though as a HEATER SHUT OFF VALVE when electric pump is not running.
Now imagine this :
AA1. When the electric heater pump #5 is not running, how could the coolant of the turbos circulate ? As I see it now , it is being blocked by the #5 electric pump.
Assume when turbo gets hot and #5 electric pump starts running........ won't HVAC heater will also get hot 85 celcius coolant flowing and heat up the cabin air ?
I been digging for many hours on this forum and others, M276 3.5 NA liter too does not have heater shut off valve and M276 3 Liter Turbo, none has issue yet for their HVAC heater.
The older M272 3.5 liter heater shut off valve :
https://www.pelicanparts.com/More_In...-200-00-31-MBZ
Maybe my cheapo eBay EPC/WIS disk are bad/corrupted and would not show M276 3 Liter Turbo on an E400 indeed has heater shut off valve

BTW, I tested the HVAC heater this morning for experiment sake and by setting temperature as HIGH, the small #5 electric pump starts and I get hot air.
What I can not test is , to get this small #5 electric pump to run for the sake of cooling the turbo.
Any suggestion guys ?
Thanks
Edit:i see you have several older MB's. so maybe not how it used to be, but that is how it has been for anything 2015+ that ive worked on.
I'm asking because Weistec offers a turbo upgrade that puts the output of the car at 540hp and 570ftlbs of torque, but if the pistons and rods are not forged it'll just snap everything.
I'm asking because Weistec offers a turbo upgrade that puts the output of the car at 540hp and 570ftlbs of torque, but if the pistons and rods are not forged it'll just snap everything.
However many owners are running over 550 or even near 600 lb ft torque with no issues.
I'm asking because Weistec offers a turbo upgrade that puts the output of the car at 540hp and 570ftlbs of torque, but if the pistons and rods are not forged it'll just snap everything.
None of the off the shelf tunes actually utilize the actual potential of the stock turbos, but I'm sure the reason for that is just the fact that not many have tried pushing it and so they'll be semi-conservative with the target PSI these tunes hit so they don't end up messing people's motors up. I have the AMR handheld tune with a jb4 on top to add a little bit more boost to the target PSI (and it controls meth for cooling)







