Tech Look: 2021 Mercedes-Benz M-256 Engine
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- Опубликовано: 10 сен 2024
- A complete technical overview of the Mercedes-Benz 3.0 M-256 inline-six engine found in the 2021 AMG GLE53 and other models. Highlights of engine features, specifications, and components under the hood.
Photos and text article: testdriven.tv/2...
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I can't understand why this brilliant engine is only used in so few applications (already dying out so to speak) - it's a masterpiece and I love how they used all available key-technologies to create the best 'downsizing engine' in my eyes ... ISG, split oiling, Camtronic, E-Charger, electrified accessories, OPF/GPF, multi-spark and -injection, lean burn, etc. This could have been the best possible transition from ICE to whatever with less-emissions. They wasted years and stupid money to create this beauty but instead of using and promoting it they seem to not care anymore about it. When the engine was released my first thought was: 'Yes, put this thing in a RWD C-Class, brand it AMG C53 and nobody gonna miss the 'ol V8' ... now they put a four-banger in the 'C63' and nobody seems to care. The 4-litre biturbo V8 already wasn't a good replacement for the NA 6,2, but now it's even worse. I worked in the industry and I understand that the golden ages of ICE are over, but why can't we get a smooth transition? Does it have to end 'hard'? I love my M274 as daily driver (C 300) and I love my Viper with it's mighty NA 8,4 V10 ... the M256 with pure RWD or the H2-Wankel from Mazda (as in the Vision RX-9) would have been most interesting to me (last ICE jeweles) - pity that they never gonna make 'em :-( Engine freaks like me can only 'look back' now and focus on 'old cars' - shame.
yes,crazy times
My dear engine freak ICE is not dead it's just morphing......H2 engines will soon start to spread. Check out Cummins and BMW efforts to burn H2 instead of using it for fuel cells!!!.....I agree with you that this M256 seems to be the only engine that combine all of the best improvements an ICE engine can have!!
@@Lmarcanov1978 Yeah, thanks. I'd rather believe in Santa Claus than the total move to H2/E-Fuels ... You're invited to revist my comment - as said I worked in engine development as engino dyno operator long enough and as German I get brainwashed about CO2, green future, H2 and E-Fuels on a daily basis by our mainstream propaganda. I know what H2/E-Fuels can achieve but I don't believe in a fast and easy transition - just replacing the energy carrier won't do ... the whole game has to change. In my opinion it would be better to put an end to ICE and move to an all-new strategy in terms of mobility (but preserve the existing classics) than crippling it more and more ... H2 1-litre three-banger - not for me.
But by ALL means - I wish you all the best with your shiny, clean and idealistic future. Just leave us 'old' fellows behind in the dirt and PLEASE don't care or try to take us with you on this path.
Spot on. Glad to drive this engine myself
I'm sorry my friend even though you have excellent points but I don't agree with you as you know engineers and their corporation have stupid behavior they never perfect something they have stick to it let's say M272 with its numeral problems and whatever they do at the end it falls on my hand on your hand or somebody else hand and we suffer because they don't stick to it for 20 or 30 years and same is with this engine it has headache with the and huge problem removing that internal generator and replacing it it cost a lot of money I cannot accept what you're saying the end this engines and diesel engines they create a lot of chemicals it makes us sick turn around and look at how many people are sick with cancer why should we not move to the cleaner technology available at this moment I'm well past 50 years why shall we cry about the past
That deck is crazy and looks like it can handle higher boost better than say a BMW N54 in its stock form. Can't wait to see someone tune this engine.
They need to move the ISG to the front of the engine for easier repair. I know the engine is to long but add free valve and it’s a go!!! The return of the oil filter to the top of the engine, second to none. Only the Germans can figure it out.
Marvel of engineering I like this engine more than B58 ❤
That was an excellent video and presentation. While the combustion engine’s hegemony might be waiving in the near future, this is a masterpiece and high water mark. The return to the inline 6 makes it even sweeter.
@juanka galindo - IIRC, GM announced they were halting internal combustion engine development a few years ago.
I have the 2020 2 AM G Gle coupe, 53. Now my whole thing with this engine. It's a wonderful engine but the throttle or the shifting is rough. And if I don't catch it just right with my acceleration, it lurches but other than that, I love my car so very much. And it is so much fun to drive. And everybody looks at it like it's from outer space. I just really, really feeds into my male ego kind of thing if you will. Say what you will and so I always tell people 429 horsepowers plus that extra EQ boost. It is what it is ladies and gentlem excuse
The electric super charger powered by the 48v system only builds boost pressure till 750rpm, there is a spring loaded diverted valve in the intake tract that is only open up to a certain pressure level
you need thousands of subscribers and more views, awesome channel hope it gets traction
didn't know about the cams being able to shift front and back like that! having said that this all looks quite scary to work on yourself or have out of warranty repairs
My 2019 e53 amg coupe use same engine？
Good luck for anyone who gonna repair them after warranty :)
Theyre a pain in Warranty also. The 48V battery is garbage.
@@giovannibustamante9367 can you tell me if you can even add a subwoofer to this car? Does the alternator work like a regular car or when it wants like bmw?
@@giovannibustamante9367someone who doesn‘t know shit ladies and gents
Nobody needs to repair cause they‘re reliable
@@v12-s65😅
Bmw’s B58 please
I can’t believe Mercedes would go to so much trouble & expense to develop such a ground breaking engine, yet they failed to add port injection to augment the existing direct injection. Toyota, Lexus, Ford and other manufacturers have added port fuel injection to their direct injection engines to reduce the inevitable buildup of carbon deposits on the intake valves. In the big picture adding the port injectors to the inlet manifold would have been a minor added cost, however it would have offset a significant repair cost for decarbonizing the inlet valves once the engine had enough miles on it to choke-up with carbon. Of course, this would likely happen down the road after the vehicle warranty has expired….
Or maybe the issue of "carbon buildup" is a little overblown.
Well said
@@TDTVGarage I believe it is pretty overblown as well. Plenty of engines have had direct injection and we haven't seen them just falling apart left and right.
If it ever needs to be jump started, would a 12V jumper do? Would that be done via the 12V access points?
There are posts under the hood for standard 12v jump starting.
@@TDTVGarage Thanks
Now 2 times the cost to replace ac compressor and 3 times for water pump.
how does this compare to the b58 regarding tuning?
The stock turbocharger isn’t as large and won’t flow as much air when you push it, but otherwise it can handle plenty of power. I’ve seen some that are making 700+ wheel on stock engine with no issues
Capable of more horsepower imo. But they are both closed block, 7 main bearing engines. They can put out 1000 horsepower tuned and built for it.
@@PapiAndrey where have u seen the 700+? im interseted i gotta take a look at it
This or b58?
this is way more advanced..
What is the key difference in the engine between the GLE 450 and AMG GLE 53? Appears to be the supercharger? Is it worth the price uncharge for the AMG?
Yep it has more hp and the e supercharger. Don‘t forget with the amg name you get suspension, brakes, looks, interior etc
I just bought both new .... the gle 53 amg is a completely different animal than my wife's gle 450. Both are beautiful cars and have different personalities
If happen something wrong in this system better putting fire in car to take money from insurance than repair😂😂
pushing over 650hp/tq on stock block rods pistons..
Had this in 2019
hello. Maybe there is a part number of a set of clamps for working with timing ? m256 3.0
Lol how often does it break??
So it took me a while to understand that the body of my car was made in america and the engine part of my car was made in germany
But worst design for maintenance. Not considering mechanic and consumer's cost
Benz > BMW