The basic concept is valve stroke switching in conjunction with fast camshaft positioners, which makes it possible to drive a large share of the engine load with optimum fuel consumption with a small cam while almost completely de-throttled, Mercedes says. Mercedes M157 Common Problems & Reliability Summary As we stated early, the M157 is a reliable engine overall. But in reality, the M272 and M273 engines actually check all of the marks offering smooth operation and strong, reliable power. “Therefore, fun-to-drive was also an important development objective.”. The V8 engine is the further development of the Mercedes-AMG M133 engine, two blocks sharing a single crankshaft. The M176/M177/M178 is a gasoline V8 engine line-up designed by Mercedes-AMG.They are replacing the outgoing Mercedes-Benz M278 engine and Mercedes-Benz M157 engine line-up.. Lückert says the engineering team’s most difficult challenge meeting the M274’s objectives was “to design a Toptype engine with additional performance requirements (that remained) close to the whole existing family.” Its modified induction and turbocharging systems enable higher top-end power and stronger low-end torque, and these higher levels of output required modifications to the pistons, piston pins and especially the oil- and water-cooling systems, Lückert says. More power than the 991 Turbo, made easy. Versatile engine serves entire Mercedes portfolio, in both transverse and north-south applications, with and without all-wheel-drive, ranging from cars to CUVs to commercial vans. It is installed on the Mercedes-Benz W203, W204, CL203 (C-class), W211, W212, C207 (E … Engine mounts on Mercedes-Benz cars are oil filled. M152 referred to the 5.5-litre naturally aspirated V8 engine for the Because they are oil filled, around 100,000 miles, they start to fail and lose the oil.
[2] CLS-Class, E-Class, and M-Class models are detuned to 300 kW (402 bhp; 408 PS) with 600 N⋅m (443 lb⋅ft) of torque at 1,600 rpm. Future-Proof Your Strategy for Software-Defined Era, Allowed HTML tags:

. Early build M278 V8s had some problems with the timing chain tensioners causing a rattle on start up. switchable hydraulic pivot elements in the cylinder heads would drop below Designated M274, this engine’s mission is to offer more power and more fuel-efficiency. There were also some issues with premature valve guide wear. Mercedes M272 Reliability. M270 Engine History. Other significant M274 features include a unique high-strength aluminum cylinder head, a mass-reducing hollow-cast crankshaft (with eight counterweights) and a modular balance shaft for customer-pleasing smoothness. Other features will include a twin-scroll turbocharger and an electric 48V water pump. All rights reserved. The big brother M157 is based on the M278 design but with greater displacement and other associated changes. At the high pressure When Mercedes Benz introduced the M278 we realized immediately it’s potential. It is an excellent motor. They are the successor to the previous M266 and M271 engines respectively. A Mercedes spokesman says the new engine will debut in the E-Class Coupe and Cabriolet in Europe, but it will appear in the U.S. in another yet-to-be announced model before the end of the decade. Mercedes–Benz claims that the new engine, in conjunction with the demand–controlled ancillaries and the stop–start system, can produce up to a 24% improvement in fuel economy while increasing power and torque over the M272. However, the V8s are twin-turbocharged, with the BorgWarner … The M278 is a V8 Twin Turbo Charged Engine. The M278 engines are generally reliable and solid as long as they are regularly serviced and maintained. This system’s key components are a multi-part camshaft with engagement elements and gearing to adjust two hollow-bored cam parts, each with two double cams for small and large valve strokes, over a central support shaft; a shift gate that actuates the stroke switching; a support-shaft-driven cam for the high-pressure pump; and a dual-pin actuator. Package). That was achieved by establishing a modular production concept with shared parts and generic elements for the basic engine – particularly the cylinder head, crankcase and drive unit – across all variants. Mercedes M273 Engine Problems and Reliability. In contrast to the port-injected M273, the M278 features gasoline direct injection, with piezo … A weak place is engine timing. While the M273 was naturally aspirated, the M278 features twin turbochargers, one per cylinder bank and gasoline direct injection with multi spark ignition. AustralianCar.Reviews has over 1,550 extensive reviews of 62,000 Australian cars... 1.0 bar (1.3 bar for Performance It’s not all bad, but there are a few serious issues that can lead to costly repair bills or complete engine failure. Don’t expect Honda-like reliability and cost of repairs, but the M157 is certainly more reliable than many high performance engines out there. Registered in England and Wales. When the engine mounts fail you may notice excessive vibration on the seat, in the cabin, and even on the steering wheel. Web page addresses and e-mail addresses turn into links automatically. Hi, my name is***** the M278 engine, there have been some problems with the timing chain tensioners causing a rattle on start up. We have tips on removing carbon build up. the flow rate was reduced to 2 bar and the oil sprayers for cooling the First introduced by Mercedes in the 2005 SLK, the new generation of Mercedes engines was a stark departure from what was produced decades prior. It has a stock power of approximately 402HP and 443LB-Ft Torque. All versions share their direct fuel injection with “third-generation jet-guided combustion, which is realized by means of an A-nozzle piezo injector,” Lückert says. and two map-controlled, switched pressure levels. Mercedes M278 Engine Problems and Reliability. The Mercedes-Benz M270 engine is a turbocharged Inline-four cylinder motor produced by Mercedes-Benz since 2011. with the maximum quantity of oil at 4 bar. The M278 engine had Garrett MGT1752SM turbochargers which provided “This engine had to meet all the Toptype specs (such) as power, low-end torque, fuel consumption and emission standards while being modeled closely to the whole engine family. SLK 55). Mercedes calls its technology package of third-generation direct injection with centrally located piezo injectors (with outward-opening tapered jet nozzles) and multiple-spark ignition “BlueDIRECT.” Both M270 and M274 non-hybrid versions are closely related to the M276 and M278 BlueDIRECT I-4s used in Mercedes hybrid models. This is the story behind one of our 2017 winners. Mercedes M157, M276, & M278 Rattle Noise Upon Starting Many of the newer generation Mercedes engines (namely the M157 AMG engine, M276 V6 engine, & the M278 V8 engine) develop an obnoxious rattle sound upon start up. The engine’s peak torque is 273 lb.-ft. (370 Nm) available between 1,300 and 4,000 rpm, and its EPA fuel economy (in the WardsAuto ’17 C300 coupe test car) is 23/30 mpg (10.2-7.8 L/100 km) city/highway. M278 engines up to number 278 9xx 30 103675 (February 2013) M157 engines up to number 157 9xx 60 022333 (December 2012) Unfortunately, the production of the Mercedes-Benz W221 stopped soon after the check valves were introduced. The engine has a pretty complicated timing chain drive arrangement. Topic. Because this engine family is designed to serve throughout the entire Mercedes portfolio, in both transverse and north-south applications, with and without all-wheel-drive, ranging from cars to CUVs to commercial vans, one other major objective was a high degree of commonality. The M278 is derived from the company's previous M273 V8 engine, sharing its bore pitch, aluminum engine block, and Silitec aluminum/silicon low-friction cylinder liners. Editors chose this “unassuming but capable” Mercedes I-4 turbo as the one that “does it all: smooth and quiet at start-up and idle, rev-happy and ready to run and capable of 27 mpg (8.7 L/100 km) under an occasional heavy foot.”, They characterize it as “punching well above its designated weight” despite lagging the others with only 241 hp compared with BMW’s 248 hp, Audi’s 252 hp and Alfa’s 280-hp engine. Remove the oil drain bolt. To achieve this, These features are also shared with Mercedes' M278 V8 engine, announced at the same time. provided peak boost pressure of 1.0 bar (1.3 bar for the Performance This system’s key components are a multi-part camshaft with engagement elements and gearing to adjust two hollow-bored cam parts, each with two double cams for small and large valve strokes, over a central support shaft; a shift gate that actuates the stroke switching; a … The 2018 Wards 10 Best Engines will be announced in mid-December. The M278 Engine with its twin turbochargers, one per cylinder bank and gasoline direct injection with multi spark ignition. Their main purpose is to keep the engine vibrations from being transmitted to the cabin. M278 internal design: That is not to say the M278 is a bad design by any means. Number 8860726. Then a reduced-friction M274 provided improved fuel efficiency for a new C-class in 2014, and this more powerful 241-hp version was developed for use in a variety of Mercedes vehicles. “The new-generation M264 will feature higher low-end torque and maximum power above 200kW (268 hp) while further reducing fuel consumption,” Lückert says. The engine still can be found in the U.S. on cars such as the E300 sedan, hooked to a 9-speed transmission, but its successor was named last year: the M264. As such, the Wards Auto is part of the Informa Tech Division of Informa PLC. Mercedes M278 Engine. They praise it as “the go-to workhorse in a wide array of Mercedes-Benz vehicles, from the high-volume C- and E-Class to the SLC roadster and GLC utility vehicle.”. Unfortunately, the M273 engines have earned a reputation as one of the most problematic Mercedes V8 engines. The M278 is derived from the companys previous M273 V8 engine, sharing its bore pitch, aluminium engine block, and Silitec aluminiumsilicon low-friction cylinder liners. engines before Mercedes-Benz won out for a 2017 Wards 10 Best Engines trophy. “A 48V starter-alternator system will bring fuel-saving features such as “coasting with engine off and a nearly unnoticeable engine stop/start system,” he adds. Though not as fuel-thrifty as the I-4 in BMW’s 330i, it is more efficient than the competition offered in the Audi A4. Among this engine’s significant technologies are the piezo fuel injectors introduced in the original 2011 M270 engines and the cooling channel pistons that debuted in the 241-hp M274 version, he says. The intake and exhaust valves would be closed. cylinder head had complex oil supply bores for the hydraulic pivot elements. the camshaft and disconnect the valves from the camshaft. [2] Although in 2008 the modern Mercedes engine seemed to be the pinnacle of technical possibilities, the first black clouds began gathering overhead just months after the premiere. “That increased flow helps the turbocharger respond more quickly at low engine speeds, as evidenced by the lack of turbo lag during our test drives,” WardsAuto Editor Tom Murphy says. The purpose of this article is to make the suggested … The Mercedes-Benz M278 is a family of direct injected, Bi-turbocharged, V8 gasoline automotive piston engines.. For me, it's comfort and luxury, not high performance and reliability. Carbon build up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. We discussed how a Mercedes Tuner can really take advantage of the M278 Engine and its awesome V8 block. models; and. peak boost pressure of 0.9 bar. The Mercedes-Benz M278, M157 and M152 were 90-degree V8 petrol engines that Reliability & common problems.   2016 Wards 10 Best Engines: By the Numbers, 2017 Wards 10 Best Engines: Less Is More With Four, © 2021 Informa USA, Inc., All rights reserved, Autoline Daily 2021: Top Industry News for Feb. 4, Blue Oval Thinking Green As Ford Promotes Sustainability, Autoline Daily 2021: Top Industry News for Feb. 3, New Ford F-150 Raptor Answers Call of the Wild, Toyota Doubles Down on Fuel Cells With Redesigned ’21 Mirai, Biometrics Emerging Bridge to In-Car Digital Commerce, What’s Next for Auto Industry? Overall, the M272 is generally less reliable than an average car. This is a common symptom which is already fairly well documented on the internet. The M278 is derived from the company's previous M273 V8 engine, sharing its bore pitch, aluminium engine block, and Silitec aluminium/silicon low-friction cylinder liners. Oil leakage is another thing to look out for. At the low level, however, M278 referred to the 4.7-litre biturbo V8 engine for Mercedes-Benz More and more users of cars equipped with 2.1 liter diesel engines of the 220 CDI and 250 CDI versions are starting to complain about the extremely low durability of the Delphi … The M273 engine had an aluminium engine block with Silitec (Al-Si alloy) cast cylinder liners, five main bearings, an aluminium crankcase with reinforced bearing caps, a forged steel crankshaft, fracture-split 70MnVS4 forged connecting rods, … Specifically, M278 referred to the 4.7-litre biturbo V8 engine for Mercedes-Benz vehicles; M157 referred to the 5.5-litre biturbo V8 engine for AMG-badged models; and, Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. As in many modern engines, variable cam timing optimizes both intake and exhaust sides, and the M274’s slight overlap between them enables the cool incoming mixture to help scavenge hot exhaust gases into the exhaust manifold and from there to the turbocharger. It has strong family ties to Mercedes’ R4 gasoline engine family, which dates back to late 2011 and now is produced in Europe, China and the U.S. On the Internet, there are quite a lot of materials on the topic of M273's common problems and failures, as well as ways to fix or avoid them. This section covers the potential reliability issues that you might have with the Mercedes-Benz W203.Click on the buttons below to read more about the typical problems that fall outside the scope of routine maintenance. were introduced in 2010 to replace the. Fortunately, only the early 2004-2008 M272 engines are plagued with the balance shaft failures. And the rapid multi-spark ignition can fire as many as four sparks per millisecond for a more complete burn. How reliable is the Mercedes M272 engine? ©AustralianCar.Reviews. One of the pins is responsible for switching from the large stroke to the small stroke while the other pin is responsible for switching from the small stroke to the large stroke. The Mercedes-Benz M273 engine was a 90-degree V8 petrol engine that was first introduced in 2005 as an evolution of the M113 engine. Fuel injection and fuel ignition would be adjusted; and. Package); and. Mercedes engines use hollow, forged steel rods that are made in one piece, then hydraulically "cracked," instead of being machine-cut and reground. Paired with a 9-speed automatic transmission, it offers “a wide spread between sporty, comfortable and economical (modes) selectable by the driver,” he adds. It’s not as potent as Alfa Romeo’s Giulia entry, but it is more refined. Lines and paragraphs break automatically. WardsAuto editors concede it was a tough competition among a quartet of premium turbocharged GDI 2.0L 4-cyl. The engine appeared on the Ward's 10 Best Engines list for 2017. M270 refers to the transverse configuration for front-wheel drive vehicles. M278 engines family The Mercedes-Benz M278[1] is a family of direct injected, Twin-Turbocharged, V8 gasoline automotive piston engines. ... with the addition of structural reinforcements to the engine block for improved rigidity which in turn yields greater reliability. The family’s first member, designed to be transversely mounted in front-wheel-drive Mercedes vehicles, was the 154-hp, 1.6L M270. One important feature added in 2012 to the 1.6L M270 4-cyl. Mercedes-Benz M278 engine is similar to these automobile engines: Mercedes-Benz M276 engine, Mercedes-Benz M275 engine, Ferrari F154 engine and more. WardsAuto now is in the midst of testing for the 2018 Wards 10 Best Engines competition, marking our 24th year of recognizing outstanding powertrains. From their central position at the top of each combustion chamber, the piezo injectors can spray fuel up to five times per combustion cycle at up to 2,900 psi (200 bar) to create air-fuel mixture tumble for faster combustion speeds. The later model M278 engines did not have the problem. It is loosely based on the M137 naturally aspirated V12 sold between 1998 and 2002, and retains its SOHC, 3 valves per cylinder, twin-spark ignition layout, but differs with the addition of structural … An optimised water pump with second generation thermal management; A newly developed vane-type oil pump with on-demand quantity control The Mercedes-Benz M278, M157 and M152 were 90-degree V8 petrol engines that were introduced in 2010 to replace the M273 and M156 engines. This means that nearly all (if not all) Mercedes-Benz W221 models with the M276, M278 and M157 engines are affected. There are 18 reviews for the 2014 Mercedes-Benz CLS-Class, click through to see what your fellow consumers are saying piston undersides were also shut off; A volume-controlled high-pressure fuel pump; and. Mercedes-Benz R172 SLK 55 AMG (and, subsequently, the Mercedes-AMG R172 Mercedes reliability on the various models does depend a lot on which engine and transmission as some are renowned for issues and others are equally renowned for no issues. The Mercedes-Benz M275 (and similar M285) engine is a twin-turbocharged and intercooled, all-aluminium, 60° V12 automobile piston engine family used in the 2000s to the 2010s. It's interesting to me that you follow up a question about reliability of the M with a statement about tuning it that I take to mean engine software change for more power. The stock output of the M278 engine is rated at 402 horsepower and 443 torque or slightly more, but these engines are quite underrated from the factory. The motor is stout based on the previous generation naturally aspirated M273 engines with 5.5 liter displacement used in 550 models. In contrast to the port-injected M273, the M278 features gasoline direct injection, with … While major provider tunes are generally regarded as safe enough no reports of catastrophic engines failures , it is unlikely that they provide better long-term reliability than the stock factory software. This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. The M271 Engine grew from 122 to 202 hp. Both M270 and M274 non-hybrid versions are closely related to the M276 and M278 BlueDIRECT I-4s used in Mercedes … An Alpha calibration file will take full advantage of your 4.6L BiTurbo’s ability. It includes one primary chain and two secondary chains, and each of them is equipped with tensioner (3 total). That was followed a year later by a 208-hp, 2.0L longitudinal M274 for rear-drive C- and E-class cars. They are the successor to the previous M266 and M271 engines respectively. Thanks to a layout with few parts, it was possible for the first time to create a system that enables an operating mode with thermodynamically optimized fuel consumption using early inlet closure by the addition of just one extra actuator. The M157 AMG engine had Garrett MGT2260MSL turbochargers which level, the lubrication and cooling points in the engine were supplied The irregular fracture provides a very strong, durable fit, even at high engine speeds, and shortens the production process since re-grinding isn't necessary. The standard stop/start system also operates more smoothly. vehicles; M157 referred to the 5.5-litre biturbo V8 engine for AMG-badged Introduction to the Mercedes M278 Engine. was an efficiency enhancing system called Camtronic. The Mercedes-Benz M278 is a family of direct injected, Twin-turbocharged, V8 gasoline automotive piston engines. This enables economic production of a top-type M274 in all existing plants worldwide,” says Peter Lückert, director-Passenger-Car Gasoline Engine Development. /sites/all/themes/penton_subtheme_wardsauto/images/logos/footer.png.

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