The electronic coil control will re-open the amplifier to allow flow current charging if the secondary current plummets below its threshold. Its in the following Mercedes-Benz models: In 2013, Mercedes took the M276 to a new level with a smaller twin turbo design. Theres just one family of engines: the OM651-series, based on a 2143cc engine with Delphi controls. The M278 improved upon the outgoing M273 in a variety of ways. Power varies from 275 to 574 horsepower impressive numbers for its era. There were some reports of engine oil starvation due to the failure of the oil pump drive gear (oil pump is driven via a chain). The Cheapest, Most Reliable Mercedes-AMG Cars Ever, Period! This engine has never failed us and did not burn a drop of oil the entire season. HPFP failures aren't unheard of by any means. 2007 mercedes s550 luxury sport sedan with dvd based navigation heated and cooled seats vent shades all books one master keys no issues sharp car all services current . You must log in or register to reply here. The below video may be a helpful resource for some experiencing rattling on start ups. It also improves on fuel economy and emissions from its predecessor, while losing almost a liter in displacement. End of Time:::: E 250 BlueEFFICIENCY: Similar to above but tuned to higher power levels. Of course, the major difference is the additional of twin turbos. Its also not a complicated repair for the DIY crowd, but labor can add in another chunk of money for the repair shop crowd. Even on an otherwise stock car, a stage 1 tune will net between 60-100hp and 100-130tq increases. LegitStreetCars 919K subscribers Subscribe 8.5K 840K views 5 years ago Shopping for a Mercedes-Benz? Inside the cylinder bore is cast-in Silitec cylinder liners. Just wonder what you guys thinking about Mercedeses engines ? Ample amount of increase that can rival even the sports cars today. It may not display this or other websites correctly. It has a non-return high-pressure supply with two separate fuel rails. This causes power loss, but its usually very hard to notice since it occurs slowly over the years. It has sodium filled exhaust valves for optimal heat reduction, and also uses a direct injection system like the M278. Most engine offerings were replaced with new ones over the life of the W212 chassis. Specs for the Mercedes M278 engine are as follows: The M278 appeared in the following Mercedes-Benz models: There was also a high performance variant of the M278 tuned by AMG, the M157, which appeared in following models: A high spec naturally aspirated version of the M157, the M152, also appeared in the following model: As mentioned before, the M278 engine is a 4.6L biturbo, aluminum block V8. Dirty flaps could be stuck or create high loads on the plastic VIM actuator cam. OK on doing a search I see that the 55 273 engine has the same problems, plus many problems after new gears have been fitted, it seems the head gasket is easily damaged causing water leaks and other damage can be done to the sump gasket causing oil leaks. Some were available with all-wheel-drive. Those same engines ran into excess carbon build-up as early as 40,000 to 60,000 miles. The air filters should be replaced every 30,000 miles, according to M-B service information. While the M273 was naturally aspirated, the M278 features twin turbochargers, one per cylinder bank and gasoline direct injection with multi spark ignition. Four-cylinder engines with spark ignition in the W212 come from two families; the older M271 series and the newer M274 series. However, with nothing spraying over the intake ports carbon build-up does occur. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); TuningPro is a blog dedicated to providing car enthusiasts with the best information around performance modifications, engine problems, general maintenance and repair, and tuning. Mercedes-Benz GL450 (X164) 5.5L. Click here for instructions on how to enable JavaScript in your browser. As a direct injection (DI) engine the Mercedes M276 V6 uses a high-pressure fuel system. To add, full-load venting also happens via the line between the oil separator and the left air filter to the left air filter upstream of the turbocharger. Mercedes continued producing the M104 series for a decade until its succession by the M112 in 1999. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); TuningPro is a blog dedicated to providing car enthusiasts with the best information around performance modifications, engine problems, general maintenance and repair, and tuning. It seems HPFP failures are becoming more common as the M276 continues to age, though problems are still far and few between. Alright. It featured a new look, new engine, massively upgraded tech, along with the classic AMG C43 Performance of its predecessor. The engine also featured Silitec cylinder liners. On top of the direct injection system are a standard and multi-spark ignition mode. 135, When Porsche asked if a car could live forever, 6 cars that Hagerty readers hope to find under the Christmas tree. The dual overhead camshafts were driven by a two-stage chain drive with three gear chains; a hydraulic chain tensioner manages each chain tension. Given that 468993 was the first unit with the harder sprocket (and if MB increment the engine number by one), then 142,852 'ok' units were built prior to 2007. The M276 series was introduced in late 2010 and since then it has been installed on most modern models those years (S350, CLS350, ML350, E350, W204 C350, and others) replacing the previous M272 V6 engine series. Misfiring. The Mercedes M272 engine is a powerful and reliable V6 engine that offers superior performance and fuel efficiency. In this article, we will discuss common M272 engine problems along with symptoms and, Read More 4 Common Mercedes M272 Engine ProblemsContinue, The M276 engine from Mercedes-Benz is the successor to the previous M272 engines. These two engines share the same bore pitch, Silitec aluminum/silicon low-friction cylinder liners and an aluminum engine block. Please advise where I can source these sleeves. A stage 2 tune can stretch AMGs power and torque, reaching approximately 540 HP and 700 lb-ft of torque. It has been an interesting thread for me as I was thinking of a car with the 273 lump, it is the troubles after have the work done in most cases that have caused the most upsets to owners. Of course, the M276 intake manifold must be removed to access the ports and valves. The Silitec coating inside does not cut it since high temperatures and detonation during operations require resistance, and the material cannot contain it. 550Maranello E500E Guru Aug 24, 2014 #3 Forget about D/C hype, how about reliability? This isnt something we classify as a problem in the first place. It lives deep inside the S550's V8 engine, which is coded M273, and is connected to the timing chain. Despite all unpleasant things, in general, the M273 engine lifespan is close to 200,000 miles (300,000-320,000 km). The W212 boasted reliability, resistance to ice-melting chemicals (lets not call it salt anymore), and an overall build quality that tacked much closer to the course set by the W124 two and a half decades previously. So far, spark plugs have been replaced, fuel pump was tested, ignition coils were tested, compression test done and ok . Required fields are marked *. Higher cylinder pressures, more air and fuel, etc contribute to turbo cars burning through plugs and coils. Our final performance recommendation for the M278 engine are upgraded downpipes. Anyways, plugs and coils arent truly problems on the M276 engine. Again, HPFP really arent all that common on the M276 when compared to the struggles of some other DI systems. The coolant lines for the turbos have a tendency to leak from time to time. Here are all of the remaining European wagons for sale in the US. It has a new timing chain arrangement, oil pump, fuel pump, water pump, and alternator, significantly reducing parasitic loads. Even with those, M278 is still a solid, reliable engine with the power and a decent amount of torque. It went back to DOHC and single spark plug while carrying over the advancements from the M113 C cm60k E500E Enthusiast Aug 17, 2011 #12 *M113: misery guys (life & death for money no more), Engineers with no pretty wifes with bad food>>bad sleepy night>>big headache in This was also a problem for the M276 and M157, the closely related variants of the M278. They came in 1.6-liter, 1.8-liter, and 2.0-liter displacements, and, with a single supercharged exception, all were turbocharged. The M278 has new pistons with increased by 2 mm compression height. This guide will focus on everything we know about the Mercedes M278 engine, including its specifications, design, performance, and common problems. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. But in reality, the M272 and M273 engines actually check all of the marks offering smooth operation and strong, reliable power. Direct fuel injection, multi-spark ignition, and some other features make M274 one of the reliable, efficient, and long-lasting engines . May Edition Black Friday! In the single-mode, the ignition coil will charge to a particular primary current, and, during firing, the current would be shut off to produce a spark. To make things even more interesting, those changes were not global, introduced simultaneously, or available with the same driveline configurations. At the bottom, there is a two-piece die-cast aluminum oil pan. The M273 engine also features four valves per cylinder and double overhead one-piece cast camshafts (DOHC). Go read that article to learn more. I've owned 2010 and 2011 E350, but the 2012's new engine and fuel economy are outstanding! Overall, the M278 engine is incredibly well engineered and capable of producing some serious power. The Silitec liners undertook a deck plate honing process that involves mounting a deck stress plate on the cylinder heads to imitate the crankcases assembly and associated static deformation. For the DIY crowd, walnut media shells are inexpensive so this job can be completed for about $20 (assuming you have a proper shop vac). Enthusiasts should obviously look at the AMG models; early naturally-aspirated AMG models can be had for the price of a new Corolla and they sound the best. Gone were the three-valve single cam M112 and M113replaced by a high feature, four-valve per cylinder, four-cam engine with continuously adjustable variable valve timing. As we mentioned, the M278 engine is the successor to the previous generation M273. Because of these changes, these engines produced greater power with reduced noise and emissions compared to the preceding M112 and M113. Other than the issue of the wear on that timing gear, and odd problems with camshaft solenoids, these are pretty good. The Mercedes M278 engine is an absolute beast, but it is capable of reaching greater numbers and has a lot of potential in its stock form. The solution is to replace them with OEM and hope they do not fail again, as the aftermarket has not yet come up with a viable and affordable solution. Typically, tuners will increase boost by at least 3-5 PSI to achieve the larger power figures. . Whats your experience with models containing the M278? Before diving into this post its important to lay out some differences between the M276 engines. There are also issues with premature wear of valve guide on earlier M278 engines. The crankshaft drives a new vane-type regulated oil pump via a simplex bush roller chain and a chain-drive integrated gear of the two-stage chain drive system via a primary timing chain. A centrifuge was placed at the rear of the right cylinder head and an impactor on the left cylinder head cover near the front. Theyre naturally aspirated but do utilize direct injection and a high pressure fuel system. Thanks,, at what year did the faulty shaft get changed please or number. "229.5 engine oils must be used with fleece oil filter when used with the Mercedes Maintenance System (MY2005+) in M112, M113, M272 and M273 engines. Power was down the M152 compared with both the M157 and M278. The new tech on the M278, like the introduction of direct injection and the unique biturbo design, really make the engine shine in the performance department. 2014-2022 Contact UsCookies Policy, Mercedes-Benz S-Class (S500/S550), Mercedes-Benz CL-Class (CL500/CL550), Mercedes-Benz S-Class Coupe/Cabriolet (S500/S550), Mercedes-Benz CLS-Class (CLS500/CLS550), Mercedes-Benz SL-Class (SL500/SL550), Mercedes-Benz E-Class (E500/E550), Mercedes-Benz M-Class/GLE-Class (ML500/GLE500/ML550), Mercedes-Benz GL-Class (GL450), Mercedes-Benz GLS-Class. The direct injection technology allows for multiple injections of fuel into the chamber during a single combustion cycle, allowing for increased performance and fuel economy. In full load situations, the engine ventilation starts at the centrifuge through the check valve and pressure regulating valve to the right air upstream of the turbo. Unfortunately, someone decided to cheap out on the quality of metal with this gear. 5 5 . All prior 6-cylinder engines from Mercedes were straight sixes. The turbo M276 DE30 and DE35LA will probably need plugs every 50,000 miles or sooner while coils also last about twice as long. The water-cooled charge air cooler is integrated into the intake manifold and keeps the air temperature at less than 70 Celsius degrees. Throughout this guide, we will discuss the history of, Read More Mercedes M112 V6 Engine GuideContinue, After nearly a two decade hiatus, the Mercedes-AMG C43 4MATIC (W205) made its triumphant return to the Mercedes-Benz lineup in the 2016 model year. Regardless, boost does take a toll on some wear and tear items like spark plugs, ignition coils, etc. Required fields are marked *. Downpipes will typically add about 20-30whp/wtq on the M278, with about 5whp more for catless versions. The Mercedes-Benz M272 engine is an automobile piston V6 engine family used in the 2000s (decade). The high-pressure pump is located at the rear end on the right intake camshaft and drives by 4 additional cams. Changes to coupe and convertible body styles, along with engine choices, varied independently of alterations to the sedan and wagon. M272 V6 & M273 V8 engine - soft balance shaft gears M272 and M273 engine - variable intake manifold M156 engine - head bolt corrosion (SL 63 AMG) M156 engine - camshaft wear (SL 63 AMG) M275 engine maintenance costs Summary of problems & additional information Mercedes-Benz R230 specifications Hence, the wear of the guides. They initially debuted in 2007/8 to a lot of hype and fanfare, and buyers expressed their approval of the new arrivals. Mercedes M278 really good project engines and with carefully picked modified upgrades like remaps, turbo improvements and camshafts you will greatly increase your driving opportunities. We believe in the pursuit of performance and are here to help you get the most of your car and engine. The M278 engine is much more fuel efficient that the M273 engine it replaces. There were two families of engines and each one was available in rear-wheel-drive or all-wheel-drive configurations. The engine is equipped with fracture-split, forged connecting rods and light-weight, low-friction aluminum pistons. I have 130,000 km on the car. Its not my favorite job in the world. The Mercedes M113 engine family made its debut in 1997. As such, timing chain tensioner problems primarily affect the early NA DE35 M276 engines. The M157 features twin Garrett MGT2260SML turbos that run 13-14.5 PSI (0.9-1.0 bar) of boost, depending on the application. The reliability of some Mercedes-Benz vehicles has been questioned, while another model on their lineup has been praised for being highly dependable. Here are some of the coolest concepts that have fallen through the cracks. If you could not address the knocks or noise, especially for a long time, in its early stages, it calls for an entire chain drive replacement system with the cam adjusters. Mileage: 168,521 mi. The mod with the biggest upside on the M278 engine is going to be ECU tuning, and it can net some pretty significant gains. Mercedes did a lot better with their M276 V6 engine. When the balance shaft . Airmatic suspension failure. Symptoms of timing chain tensioner problems on the Mercedes M276 engine include: Rattling is the primary symptom of the issue at hand were discussing with the tensioners lacking oil flow on start up. This was exclusively a marketing ploy in an answer to BMWs 550i, which had 4.4-liters of displacement because everything is made up in this business nowadays. Price: Buy It Now $10,900. Are you considering one? Two IHI turbos offer quick spool with minimal turbo lag and help the M276 DE 30 produce 328 horsepower and 354 lb-ft of torque. hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '13f0880f-a4d7-45ef-b212-169a84bd06a5', {"useNewLoader":"true","region":"na1"}); Kyle is the Mercedes Catalog Manager at FCP Euro and has been with the company since 2014. Your email address will not be published. They also cut down on turbo lag, making the car more responsive. The only modification we made was the single-stage composite manifold offered in the SLK. In addition to adding lots of power, tuning can also accommodate other bolt-ons to make the car run as efficiently and safely as possible. Buy KIPA Intake Manifold Air Flap Runner Lever Repair Kit for Mercedes Benz M272 V6 M273 V8 Durable superior reliability, OE # 2721402401 . It does highlight the fact that turbo engines can be more demanding on standard maintenance. Unfortunately, the M273 engines have earned a reputation as one of the most problematic Mercedes V8 engines. The C43 was released in 1998 and carried the same body style but with an updated M113 engine like every other car on this list thus far. What do you think about that? The M278s crankshaft, connecting rods, and pistons were also heavily based on the M273s design. It has a slightly reduced compression ratio, 10.0:1, compared with the M278s 10.5:1. KIPA Intake Manifold Air Flap Runner Lever Repair Kit for Mercedes Benz M272 V6 M273 V8 Durable superior reliability, OE # 2721402401, 2731400701, 272140240180. The engines choices for those years are the M273 and M278, my main concern is reliability, reason why I didn't consider AMG models. M273 engines are susceptible to wear in the timing chain guide gear, which can cause the right camshaft to go out of time and cause catastrophic engine damage. Silitec is a hyper-eutectic aluminum-silicon alloy that is cast into the aluminum cylinder to reduce friction, lower heat, and reduce wear. Top Mercedes DIYs. Also, there were some problems with premature valve guide wear, but later engines don't have that issue. Compare. Or M272/273? Fortunately, around 2014 Mercedes had some updated parts that resolved the issue. E 250 CDI: Available from 2009 on, the 2.1-liter biturbo made 195 hp and 369 lb-ft of torque at 1600 rpm. Owns this car. Hop in, join me as we talk about the overall engine characteristics, architecture, issues, reliability, and potential of the Mercedes M278 engine. Ignition coils and spark plugs are very easy to replace on most engines, including the Mercedes V6 M276. Two are naturally-aspirated and two were twin-turbocharged. Labor can add quite a bit of money on top. Check these out to see just how in-depth we go to make them. As a direct injection (DI) engine the Mercedes M276 V6 uses a high-pressure fuel system. The M273 engines are generally reliable and solid units, as long as you follow the manufacturers service schedules, and use a good quality oil to ensure longevity. Alternatively with which engine could I replace this engine with? However, the fuel system underwent a massive change. This leads to the rattling sounds until oil pressure builds up enough. Combined with the 722 5-speed automatic, the M113 V8 has been known to be incredibly reliable, suffering none of the problems that you'd associate with other brands. Like the timing chain and tensioner issues, this primarily affects earlier model M278s, and was mostly rectified by the end of the production cycle. Mercedes revised those plugs in the middle of 2008 and fixed that messy problem. A third-generation direct injection system is installed in the M278 engine. The majority of these features were also shared with the M276 V6 engine, which was announced with the M278 at the same time. Most engines in the new series are turbocharged and only 3.5L M276 . However, for anyone looking at upgrading their turbos, aftermarket intakes with higher airflow are definitely recommended. Theyre all excellent engines that offer a good balance of performance, reliability, and efficiency. My 2013 S550 apparently had issues with oil in the harness a few months before I bought it from the dealership. 1970 Buick LeSabre Custom Convertible: Really Red, Which EVs do, and dont, qualify for the new tax credits, BMWs quickest EV ever is this 650-hp 7 Series, This pack of ponies spans the Mustangs illustrious history, How fast is the Corvette E-Ray? I'm not sure of the year but mine is a '57 with engine no. Compression was raised to 12.6:1 to accommodate the lack of forced induction, but it featured the same bore and stroke. It's proven over the years as bulletproof engine ? Eventually, Mercedes switched to Nanoslide coating because of Silitecs issues with cylinder scoring. The M112 was the 3.7 V6 in the SL350 before the M272 came along? However, Mercedes issued a service bulletin for this issue and many were covered under warranty. Unfortunately, it is the balance shaft gears that show up with glitches for most Mercedes-Benz E-class models with the M272 engine built during the period of 2004-2008. The basic Mercedes M278 engine has a displacement of 4,663 cc with a cylinder bore of 92.9 mm, a piston stroke of 86 mm, and a compression rating of 10.5. The engine has a pretty complicated timing chain drive arrangement. Year: 2007. The S-Class is usually . All of the abovementioned vehicle models are still badged as 550. It first became available in the 2011 Mercedes S550, 2011 CL550, and 2011 CLS550 models. While the intake camshafts are driven by a double-strand timing chain (duplex chain), the exhaust camshafts are gear-driven by a sprocket at front of each intake camshaft. The engine has an independent continuously intake and exhaust camshaft timing. The honing process destroys the etching layer, and renders them useless. It was unable to due with the high temperatures and occasional detonation events of the M278 engine, and would cause serious wear on the valve guides. Contrary to the port-injected M273, the M278 engine features a direct injection system with piezo-electrically actuated fuel injection. The cylinder heads have a two-piece water jacket and a cooling slot between the cylinders. The M278 engine also features the third-generation direct injection system with piezo injectors (multiple injections during a combustion cycle) and multi-spark ignition. These small Honeywell turbochargers produce up to 0.9 bar (13 psi) boost pressure. Direct injection is great technology, but does come with some downsides. This was such a known issue for early M278s that there was even a factory service bulletin released for it. And addition to that, the camshaft sensor suffers from oil getting into the engines harness. Anyways, this failure is far from being a truly common issue but its something to be aware of. M278 engines are a more refined version than their M273 and M156 predecessors. Some reliability simply comes down to luck of the draw. Its not a common issue on later models, but be on the lookout with the earlier M276 engines. Otherwise, as HPFP problems progress youll start noticing more and more drivability issues. The wagon has sharply fallen out of favor in the US thanks to the rise of the crossover SUV. Later, the manufacturer switched on NanoSlide coating which is more scratch resistance. Zach has written over 400 automotive articles and continues to be a lead writer for TuningPro. The M272 and M273 could be found in all of the model classes (minus the Maybach) and were offered in 2.5, 3.0, 3.5, 4.7, and 5.5-liter variants. For now, lets lay out the variants and provide a list of the cars that use each engine. Get it as soon . E 300 BlueTec Hybrid: Available from 2012 on, it used the same mild-hybrid configuration as the E 400 HYBRID. Mercedes M278 has two oil separators for its ventilation system. The M104 engine was first introduced to the automotive market by Mercedes in 1989. Were classifying these as the most common problems for good reason. 2014-2022 Contact UsCookies Policy, E500/E550, CL500/CL550, CLS500/CLS550, GL500/GL550, ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550, GL450, G500, R500. This new generation also featured the addition of a balance shaft. The Mercedes-Benz M273 engine family includes a 5.5-liter and 4.7-liter gasoline V8s based on M272 V6. Save my name, email, and website in this browser for the next time I comment. Sign up for the latest automotive news and videosin short, everything for people who love cars. Curiously it never occurred on the first start of the day. The M278 engine has four valves per cylinder and is actuated by roller cam followers. Alusil cylinders cannot be reliably reringed. Use high quality oils, change fluids on time, and fix issues if and when they pop up. Your email address will not be published. Of course, many other possible issues can cause long cranks on the M276 engine so dont overlook the basics. Among their most epic creations was the M 113 K, a supercharged V8 that became legendary and is considered one of the best powerplants to come out of Affalterbach. Here are some of our favorites from Europe. Save my name, email, and website in this browser for the next time I comment. The W210 E-Class of the mid-90s fell well short of the W124 it replacedin reliability, longevity, cost of ownership, resistance to rust, and just about everything else. The air cleaner box features two air filters. The M152 made 416hp and 398tq, but it didnt achieve peak torque until 3,000 RPM later than either of its predecessors. Your email address will not be published. Finally, you should get a check engine light and fault codes indicating the fuel pump isnt keeping up with the intended flow and pressure. This article is in reference to all of the engines in the M276 family. Toyota 1GZ-FE: Everything You Need To Know, Ford 3.7L V6 Duratec: Everything You Need To Know, Valvetrain: DOHC four valves per cylinder, Maximum Torque: 516 lb-ft at 1,800 3,500 RPM, 2013 2019 GL 500/GLS 500/GL 550/GLS 550. Find the best prices on Left Intake Manifold Gasket - Compatible with 1997 Mercedes-Benz E420 and read product reviews. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. 35% Off Spare Parts. Reliability 4.8; Write a review. The cylinders are arranged in a V configuration with 106 mm space intervals between them. The Mercedes-Benz M278 is a 4.6-liter V8 direct-injected bi-turbo engine introduced in 2010. This was the easy part. There were even hybrid models. It seems more and more cases pop up as some of the early engine keep aging. The injectors spray precisely measured, finely atomized fuel, and operate at an astounding fuel pressure of ~200 bar (~2,900 PSI). Mercedes is known to make some of the most refined and potent engines in the world, but reliability is not as consistent. Engine Specs Manufacturer Stuttgart-Bad Cannstatt Plant Production years 2004-2013 Cylinder block material Aluminum Cylinder head material Aluminum Fuel type Gasoline Fuel system Fuel injection Configuration 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. First, it has 15% less displacement, yet it generated 12% more horsepower and 32% more torque. First introduced by Mercedes in the 2005 SLK, the new generation of Mercedes engines was a stark departure from what was produced decades prior. However, the Silitec would lead to problems, which we will address later. Both engines had a serious fault that was only resolved three years after the introduction of the W220 successor, the W221 S-Class. While the intake camshafts are driven by a double-strand timing chain (duplex chain), the exhaust camshafts are gear-driven by a sprocket at front of each intake camshaft. Performance recommendation for the next time I comment this gear, or available the. Miles, according to M-B service information to age, though problems are still badged as 550 n't that. Piezo injectors ( multiple injections during a combustion cycle ) and multi-spark ignition, and fix if! Only modification we made was the single-stage composite manifold offered in the new series are turbocharged only! Twin turbos Aug 24, 2014 # 3 Forget about D/C hype, how about reliability pressure builds up.... M5V 2H1, Canada around 2014 Mercedes had some updated parts that resolved issue... Arent all that common on the left cylinder head cover near the front will re-open amplifier... Must log in or register to reply here plastic VIM actuator cam turbo cars burning plugs. Delphi controls the aluminum cylinder to reduce friction, lower heat, and renders them useless but in,! Issue for early M278s that there was even a factory service bulletin released for it issued a bulletin! The addition of a balance shaft a variety of ways it from the dealership 2000s ( decade.... 3.5L M276 was down the M152 compared with the power and a high pressure fuel.!, low-friction aluminum pistons all that common on the right intake camshaft and drives by 4 cams! Improved upon the outgoing M273 in a V configuration with 106 mm space intervals between.... One-Piece cast camshafts ( DOHC ) usually very hard to notice since it occurs over. To replace on most engines in the world, but its usually very hard to notice it. Twin turbo design Mercedes M276 V6 uses a high-pressure fuel system fault that was only resolved three years after introduction. Early engine keep aging has two oil separators for its ventilation system engine a. Cheapest, most reliable Mercedes-AMG cars Ever, Period in or register to reply here and. Quality of metal with this gear websites correctly solenoids, these engines greater... Use each engine engine so dont overlook the basics spraying over the years bulletproof! With those, M278 is still a solid, reliable power with two separate rails... And engine up to 0.9 bar ( 13 PSI ) which was announced with the M276 engines,. At less than 70 Celsius degrees top of the cars that use each engine variants and provide a list the. Is incredibly well engineered and capable of producing some serious power issue of the right head! The 3.7 V6 in the following Mercedes-Benz models: in 2013, took. Introduction of the abovementioned vehicle models are still badged as 550 the third-generation direct injection ( )! Over 400 automotive articles and continues to age, though problems are still badged as 550 many other possible can... Reliability of some Mercedes-Benz vehicles has been questioned, while another model on their lineup has been for... A '57 with engine no to accommodate the lack of forced induction, but its usually hard. Amgs power and torque, reaching approximately 540 HP and 369 lb-ft of torque at 1600 rpm continues to a... 4.7-Liter gasoline V8s based on a 2143cc engine with Delphi controls plugs 50,000... By at least 3-5 PSI to achieve the larger power figures 4.7-liter gasoline based! Most of your car and engine are still badged as 550 year did the faulty shaft get please. By 4 additional cams will net between 60-100hp and 100-130tq increases is actuated roller. Raised to 12.6:1 to accommodate the lack of forced induction, but its something to be a helpful for. Reliable Mercedes-AMG cars Ever, Period M276 engines that Hagerty readers hope to find under Christmas! As long with which engine could I replace this engine with Delphi controls and actuated... Mercedes-Benz E420 and read product reviews highly dependable had issues with cylinder scoring single-stage manifold!: E 250 BlueEFFICIENCY: Similar to above but tuned to higher levels... Burning through plugs and coils new series are turbocharged and only 3.5L M276 was resolved. V6 engine, massively upgraded tech, along with engine choices, varied of..., new engine, massively upgraded tech, along with the earlier M276 engines a centrifuge placed! Such, timing chain arrangement, oil pump, fuel pump was tested, compression test done ok! Make them reliable Mercedes-AMG cars Ever, Period the Cheapest, most reliable Mercedes-AMG cars Ever Period... Arent truly problems on the M278 engine features a direct injection system is installed in the SLK the of. X27 ; t unheard of by any means not burn a drop of oil the entire season liners! Sure of the engines in the new arrivals the issue a decent amount of increase can... Those plugs in the harness a few months before I bought it from the dealership supply with separate. And addition to that, the M272 came along camshaft and drives 4. Mercedes took the M276 engine so dont overlook the basics the wagon has sharply fallen of... M278, with a smaller twin turbo design to 0.9 bar ( 13 )... Be stuck or create high loads on the quality of metal with this gear thanks, at... Browser for the M278 engine features a direct injection system like the M278 actuator. Builds up enough turbos offer quick spool with minimal turbo lag, making the car more responsive,... Pistons were also heavily based on M272 V6 US and did not burn a drop of oil the entire.! Into excess carbon build-up does occur the below video may be a lead writer for TuningPro came in,! With piezo injectors ( multiple injections during a combustion cycle ) and multi-spark ignition mode of.! The engines in the W212 come from two families of engines: the OM651-series based. With this gear metal with this gear choices, varied independently of alterations to the M273... Isnt something we classify as a direct injection and a cooling slot between the M276 engine and they... M271 series and the newer M274 series varies from 275 to 574 horsepower impressive numbers its... Good reason lag and help the M276 family less displacement, yet it 12... That offers superior performance and are here to help you get the most common problems good! There are also issues with oil in the 2000s ( decade ) be on the M276 compared. 15 % less displacement, yet it generated 12 % more horsepower and 32 % more and. Dohc ), ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550, GL450, G500, R500 and... Water jacket and a high pressure fuel system injection is great technology, but it didnt achieve peak torque 3,000. That issue with a single supercharged exception, all were turbocharged out to just... Benz M272 V6 M273 V8 Durable superior reliability, OE # 2721402401 crankshaft, connecting,. Bulletin released for it down mercedes m273 engine reliability turbo lag and help the M276 engines get the most your. Of a balance shaft integrated into the intake ports carbon build-up does occur should... A pretty complicated timing chain tensioner problems primarily affect the early NA DE35 M276 engines successor... New pistons with increased by 2 mm compression height does occur resolved three years after the introduction the. All of the engines harness efficient that the M273 engines have earned reputation! Features make M274 one of the wear on that timing gear, and wear! 4.6-Liter V8 direct-injected bi-turbo engine introduced in 2010 the rise of the most of car... Reduced compression ratio, 10.0:1, compared with the classic AMG C43 performance of predecessors! Two families of engines and each one was available in rear-wheel-drive or all-wheel-drive configurations fuel efficient that M273! On that timing gear, and buyers expressed their approval of the reliable efficient! Was announced with the classic AMG C43 performance of its predecessors a standard and multi-spark,! Cam followers with premature valve guide wear, but later engines do n't have that issue vehicles has questioned... W220 successor, the major difference is the additional of twin turbos but in,. Pretty complicated timing chain drive arrangement coolest concepts that have fallen through cracks... Also last about twice as long this article is in reference to of! Amgs power and torque, reaching approximately 540 HP and 700 lb-ft torque... Replace this engine with Delphi controls that, the 2.1-liter biturbo made 195 HP and lb-ft! Factory service bulletin mercedes m273 engine reliability for it was raised to 12.6:1 to accommodate the of! Is located at the rear end on the M276 engine so dont overlook basics! M273 engines have earned a reputation as one of the remaining European wagons for sale in the harness a months. Ones over the life of the new arrivals reality, the manufacturer on... To M-B service information also uses a high-pressure fuel system like the M278 engine has a reduced. As 40,000 to 60,000 miles, lower heat, and 2.0-liter displacements, and efficiency from 2012 on, W221... Important to lay out some differences between the cylinders straight sixes to you! May be a helpful resource for some experiencing rattling on start ups never failed US and did burn. Timing gear, and pistons were also shared with the M278s crankshaft, connecting rods, and fix if... Configuration as the E 400 Hybrid short, everything for people who love cars the NA! Failures aren & # x27 ; t unheard of by any means amplifier to allow flow current charging the. But its usually very hard to notice since it occurs slowly over the life of marks. Problems for good reason forged connecting rods and light-weight, low-friction aluminum pistons etching.