M276 Engine?
Thread Starter
Super Member
Joined: Jan 2013
Posts: 670
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From: Alberta
2014 E63 AMG S
M276 Engine?
Hey,
Does anyone have any (preferably official) information about difference between the M276 in the 2013 C300 and C350? I've heard ranges from it being all software, to the difference being deeply mechanical (port sizes, quality and strength of materials). Does anyone know?
Thanks
Does anyone have any (preferably official) information about difference between the M276 in the 2013 C300 and C350? I've heard ranges from it being all software, to the difference being deeply mechanical (port sizes, quality and strength of materials). Does anyone know?
Thanks
MBWorld Fanatic!
Joined: Oct 2004
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From: Las Vegas, Nevada
2013 C350 Coupe, 2005 C230K Kleemann Sedan, 2013 GLK350 4matic
Hey,
Does anyone have any (preferably official) information about difference between the M276 in the 2013 C300 and C350? I've heard ranges from it being all software, to the difference being deeply mechanical (port sizes, quality and strength of materials). Does anyone know?
Thanks
Does anyone have any (preferably official) information about difference between the M276 in the 2013 C300 and C350? I've heard ranges from it being all software, to the difference being deeply mechanical (port sizes, quality and strength of materials). Does anyone know?
Thanks
Thread Starter
Super Member
Joined: Jan 2013
Posts: 670
Likes: 7
From: Alberta
2014 E63 AMG S
Member
Joined: Apr 2012
Posts: 137
Likes: 1
2013 C350 Coupe 4M
Looking here: http://en.wikipedia.org/wiki/Mercedes-Benz_M276_engine underneath specifications it says there is only one version with a displacement of 3.5 litres. This leads me to believe the C300 uses a different engine? Perhaps the older M272? http://en.wikipedia.org/wiki/Mercedes-Benz_M272_engine check under the "E30" section.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 1,128
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From: Acapulco Mexico
2010 C300 Sport
The 2013 C300 4Matic uses a detuned 3.5L CGI M276 engine with direct injection. This is clearly stated in all MB websites worldwide where the C300 4Matic is sold. However, China still offers a C300 with the 3.0L M272 engine.
MBWorld Fanatic!
Joined: Oct 2010
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From: Acapulco Mexico
2010 C300 Sport
Rumor has it that the detune to 248 HP and 251 lb-ft torque (from 302 HP and 273 lb-ft) is all ECU programming. Many have speculated that this engine can be retuned to full spec.
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Joined: Dec 2010
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From: Santa Ana, CA
OE Tuning C63 AMG
C300 GDI Tuning
Feature of the tune include:
- Ignition and Fuel adjustment
- Speed limiter removal
- Improved throttle response
- Raising Torque limits
Gains are +12Hp & +10Tq. On SALE this month for $556, ECU send in only.
Thread Starter
Super Member
Joined: Jan 2013
Posts: 670
Likes: 7
From: Alberta
2014 E63 AMG S
We have a tune available for your car: http://oetuning.com/mercedes-benz-c300-3-5-gdi.html
Feature of the tune include:
- Ignition and Fuel adjustment
- Speed limiter removal
- Improved throttle response
- Raising Torque limits
Gains are +12Hp & +10Tq. On SALE this month for $556, ECU send in only.
Feature of the tune include:
- Ignition and Fuel adjustment
- Speed limiter removal
- Improved throttle response
- Raising Torque limits
Gains are +12Hp & +10Tq. On SALE this month for $556, ECU send in only.
Newbie
Joined: Aug 2013
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From: Seattle, Washington
2013 C300 4MATIC Sport
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2022 EQS 450+ until my 580 comes in
Also, I found this on Kleemann's website:
Will the 7G-tronic be able to handle the power of a Kleemann tuning solution? Back to top
The 7-speed 7G-tronic transmission (722.9) has now replaced the most of the 5-speed (722.6) transmissions Mercedes Benz used since 2000. All new N/A V6 and V8 vehicles are now being built with the WA700 variant of the 7G-tronic. The WA700 variant is endurance load rated by Mercedes Benz at 760 Nm (560 lbs/ft) of torque. This means the transmission will handle this amount of power continuously with out failure. There will never be a time where one can develop this kind of power continuously on the road. Momentary load ratings are easily 35 % higher than continuous ratings, and the 7G-tronic transmission will easily handle the performance from a Kleemann conversion. The 7G-tronic has been available since 2004, and Kleemann has modified many of these vehicles. None of these modified vehicles has had any trouble to date, many of them having logged in excess of 64000 km (40000 miles).
http://www.kleemann.dk/About/FAQ#faq05
Last edited by WhyAskWhy; Dec 29, 2013 at 08:17 AM.
Member
Joined: Feb 2019
Posts: 78
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From: Northeast PA
2013 C300 4matic Sport sedan
Bumping this thread. Anybody get anywhere with this? I saw another thread similar to this offering a tune for $1300. All subsequent posts could not provide any real data.
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Joined: Apr 2016
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From: Milwaukee, WI
2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
Eurocharged is a good option and I'm sure OE tune has sorted theirs out as well.
Member
Joined: Feb 2019
Posts: 78
Likes: 7
From: Northeast PA
2013 C300 4matic Sport sedan
Yeah I'm aware of the difference/similarity of the m276 in the my13 and my14 c300's and c350's. I'm just wondering if anyone has actually got provable results. I checked out a company called Bren Tuning. They have a video of a 3.5L c300 4matic with baseline results. I've contacted them for some more info, waiting for reply.
Member
Joined: Feb 2019
Posts: 78
Likes: 7
From: Northeast PA
2013 C300 4matic Sport sedan
Pretty sure most all modern MB motors do, in U.S. spec. Europeans have higher standards of petrol than we do so when their engines are designed they are designed with a minimum octane rating, which is typically standard pump gas over there but mid grade/premium over here. There's a lot of info out there regarding this. The consensus is that the m276 engines in 2013 and 2014 c300's are identical ( so far I can verify that bc every part I've needed I had to get was the same as the c350 ) and it's just a factory "de-tune" done to the ecu that makes them differ. The problem is, I've searched ad nauseam and have not found ANY verifiable numbers. Not from customers or the various tuners that offer the service to these very specific engines.
Member
Joined: Feb 2019
Posts: 78
Likes: 7
From: Northeast PA
2013 C300 4matic Sport sedan
Upon further research I can verify that the c300 spec m276 only delivers up to 80% throttle max. This makes sense as this is what they have done to AMG engines in the past, specifically the shared 6.2L/6.3L motor. OE gave me some #'s as well. The claimed 330hp is at the crank. Through much siphonning from the torque converter, trans, transfer case, WHP gains are seen around 15hp.(and probably somewhere near the claims of 300-330 at the crank but, who does that?) Doesn't seem significant but it is. The throttle response is the real culprit.
I want this thread to come back to life! I love my c300. I just want a little more from it and mainly because I know it has the easily realized potential to do so!
I want this thread to come back to life! I love my c300. I just want a little more from it and mainly because I know it has the easily realized potential to do so!
Junior Member
Joined: Feb 2012
Posts: 54
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From: Knoxville, TN
CLK 500, 2013 C300 Sport
I actually wrote to OE a month ago asking for a small price break (summer sale price would be great since I missed that window) and in turn I would Dyno my '13 C300 sport 4 matic before the tune and then after. I offered to film (I work on TV shows and am a photographer) and document each step of the process and post the results and short movie on the forums so this question can be put to bed. In response I got a "we dont do sponsor deals (not what I was looking for but ok) and the tune may go on sale later in the year again. That was it. They didn't seem the slightest bit interested in settling this matter or providing any data to show the numbers.. I too cannot stand my 300 lack of get up and go. I'd buy it tomorrow if I knew the numbers they claim are real or not. Sigh....
Last edited by jhanson25; Oct 3, 2019 at 04:04 AM.
Member
Joined: Feb 2019
Posts: 78
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From: Northeast PA
2013 C300 4matic Sport sedan
I actually went through the process of cross referencing all the internal engine parts from a 2013 c300 4matic sport and a 2013 c350 4matic. All parts have identical pn's only difference is the exhaust tubing. And I'm guessing that is only bc the 350 is a coupe.
