Power varies from 275 to 574 horsepower impressive numbers for its era. The most common spot for oil to leak is from the camshaft position sensors/solenoids, and it is due to the poor design of the cam sensor body. Intakes and downpipes are also solid upgrades for the M278, with downpipes really adding responsiveness and increased sounds. Misfiring. Mercedes-AMG also created a variant of the M157, the M152, a 5.5L naturally aspirated V8. Anyway.."Here's the link:" Mercedes Benz balance shaft engine issues. 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. However, there are some gems out there that won't break the bank. For a V8 engine, it may seem so underwhelming by the numbers given by the M278 engine. For a fair compromise and comfortable daily driving, glance at the E 400. The most reliable W221 is the 2008-2011 S550, equipped with the naturally aspired M273 engine and 7-speed automatic transmission. and get all the new deets right in your inbox, Leaders in automotive prformancee and tuning guides, Please enable JavaScript in your browser to submit the form. 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. First, it has 15% less displacement, yet it generated 12% more horsepower and 32% more torque. Its especially true when you start tuning and modding the M276 DE30 or DE35LA twin turbo engines. Ho does newest engines M276/278 stand against older engines w16302ML500 w21097E50Amg w20299C230K w12494420e /==>w12495320e-199u (needs elec TLC) /GreatWhiteNorth Kanada. All you need to remember is that pre-facelift 1.8-liter was the M271 series and the post-facelift 2.0-liter was the new M274 series. The current sleeves are badly scored The M278 has new pistons with increased by 2 mm compression height. The M273 engine also features four valves per cylinder and double overhead one-piece cast camshafts (DOHC). Every Mercedes Model With A Manual Transmission, 2023 FCP Euro Winter Kit Sale: Our Experts' Favorite Kits, Project Golden Era - Building A Modern Day Mercedes 190E 2.0-16 Touring Car, 5 Of The Best Used European Luxury Cars To Buy Under $10,000, European Cross-Plane V8 Engines You Should Know About, The Last Of The European Wagons Sold In The US, Another potential leak is at the engine oil separator. 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. 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? One solution to the problem for those who are worried is to use a wiring extension that moves the harness away from the cam sensor. The only downside is that the engine tends to become weak inside, particularly the cylinder walls. Changes to coupe and convertible body styles, along with engine choices, varied independently of alterations to the sedan and wagon. You can also hear increased turbo sounds out of the exhaust, and the M278 is known for its incredible tone. Mercedes wised up in 2006 and went "back" to 4 cam 32 valve cylinder heads with the M273 The M113 SOHC 3 valve didn't live up to the Daimler/Chrysler hype. Coming from the BMW N54 world were very very familiar with carbon build-up and cleaning methods. 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. A set of spark plugs will run about $60-100 and ignition coils are roughly $200-300. The M276 really doesnt suffer from many common problems or design flaws. 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. Introduced in 2004, it is based on the M112 V6 introduced in 1998. Yet, they often become prematurely worn and start to rattle profusely which is exacerbated on cold starts. Alright. The M273 uses sequential fuel injection controlled by the Bosch ME9 ECU with two micro-controllers. 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. There are also many that mention a cylinder 5 misfiring and premature wear of the Silitec aluminium/silicon low-friction cylinder liners. Versus Ferrari F8 & Lamborghini Huracan Evo Cammisas Ultimate Drag Race Replay, Ultra RARE: Colin Chapmans Lotus Eleven + 327 Corvette Stingray with 4-speed | Barn Find Hunter Ep. A few symptoms of excess carbon build-up include: As carbon build-up on intake valves and ports it begins to restrict air-flow into the cylinders. It's proven over the years as bulletproof engine ? Hi It does not have significant issues, but if there are any, it is common and solvable. ABC suspension failure. I personally prefer 5.5 over 4 turbo. 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, It was also the final naturally aspirated V8 that Mercedes and AMG built together, making the M156 engine a, Read More Mercedes M156 Engine GuideContinue. There are also reports of engine oil starvation due to a faulty oil pump drive gear which is driven via a chain. There are also issues with premature wear of valve guide on earlier M278 engines. The cylinder block of M278 is made from lightweight aluminum material. But in reality, the M272 and M273 engines actually check all of the marks offering smooth operation and strong, reliable power. 2009-2013: 1.8-liter turbocharged engine, made 201 hp and 229 lb-ft of torque. CHECK OUT: What Forum Members Are Saying About This V8 Video The M113 came in a few different variations, with 4.3, 5.0, and 5.5-liter versions. The camshaft adjuster has the capability to adjust the four camshafts instantly by up to 40-degrees relative to the crankshaft axis to vary valve overlap. Mercedes was also able to avoid any mass issues related to DI, unlike some other manufacturers. The W211 E-Class model that came around in 2002 significantly improved on the W210 but no amount of mid-cycle refreshment could bring it up to the standards set by its grandfather. 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. For decades, the Mercedes-Benz S-Class sedan has reigned as a supreme icon of luxury motoring. The reliability of Mercedes cars varies from one model to another. If you run into this problem out of warranty then Mercedes may be willing to work with you and help with the repair bill. Sold by Merlibugo and ships from Amazon Fulfillment. 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 turbo M276 DE30 and DE35LA will probably need plugs every 50,000 miles or sooner while coils also last about twice as long. Read More Mercedes M256 Engine GuideContinue. E 63 AMG: Despite its relatively unchanging exterior, the hot rod of the group had several changes under the hood. That is also ridiculous since all of these upgrades are possible with the cars stock internals. Mercedes also offers multiple variants of the M276 a 3.5L NA, 3.0L twin turbo, and 3.5L twin turbo. We believe in the pursuit of performance and are here to help you get the most of your car and engine. E 220 CDI: Twice the turbos, some more power. 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. End of Time:::: Oil was seeping through the harness from the electrical connectors from my cam sensors and cam magnets before I bought the car. This helps efficiency despite its larger design. The Silitec coating showed themselves as bad cylinder surface material for operation under high temperatures and detonation. These two engines share the same bore pitch, Silitec aluminum/silicon low-friction cylinder liners and an aluminum engine block. The M272 utilises a 90-deg block in common with the V8 engines. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. Notify me of follow-up comments by email. Chandlers passion and knowledge of the automotive industry help him deliver high-quality, insightful content to TuningPro readers. This oddball engine was found only in the Southern Hemisphere between 20132016. Inside the cylinder bore is cast-in Silitec cylinder liners. In terms of engine availability, the wagon aligns most closely with the sedan. It's a new year, and that means new inventory. E 250 BlueEFFICIENCY: Similar to above but tuned to higher power levels. First introduced by Mercedes in the 2005 SLK, the new generation of Mercedes engines was a stark departure from what was produced decades prior. Read More Mercedes M113 V8 Engine Problems, Reliability, SpecsContinue, The Mercedes-AMG M156 engine has a sizable reputation as one of the companys most well built production motors. 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. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Thanks,, at what year did the faulty shaft get changed please or number. Mercedes replaces the outgoing M278 V8 engine range with the latest 4.0-liter M176 engine series introduced in 2015. Initially, the C43 caught a lot of flack for its perceived lack of power, but it has changed critics minds with its deft handling, impeccable performance, and luxurious interior. In Stock. Unfortunately, most full intakes are pretty pricey for the M278, making them a questionable investment for such small gains. This wasn't mandatory, it was just more suitable for continuous high RPM operation thats common in a racing environment. Spark plugs and ignition coils are standard maintenance on almost any engine including the M276. E 350 CDI: Five variations of that same engine in the same model. More good news is that the M276 fuel pump is pretty cheap at about $300-600. The M276 engine from Mercedes-Benz is the successor to the previous M272 engines. With an intake and downpipes, stage 2 tunes easily add an additional 30-50hp and 70-100tq on top of that (90-150hp/170-230tq over stock). Ensure the M272 engine serial number is later than 2729..30 468993. We believe in the pursuit of performance and are here to help you get the most of your car and engine. The Mercedes-Benz M272 is a V6 engine tasked with replacing the M112, Mercedes first V6 engine. Mercedes has built more than a handful of sporty, luxurious vehicles with manual transmissions. Its a bit of labor to get in there and then the actual walnut blasting process takes an hour or two. Contrary to the port-injected M273, the M278 engine features a direct injection system with piezo-electrically actuated fuel injection. Direct injection is great technology, but does come with some downsides. Like the predecessor, the M278 4.6L V8 is a turbocharged engine. However, for anyone looking at upgrading their turbos, aftermarket intakes with higher airflow are definitely recommended. It's great when some one takes the time to be so informative. For a better experience, please enable JavaScript in your browser before proceeding. 5.4L M113 engines power the following 55 AMG models: 1998-2000 C55 AMG 1998-2001 SL55 AMG 1998-2002 E55 AMG This would wear over time and cause the camshafts to go slightly out of phase and cause an engine management fault. The M278 engine has two cylinder banks, each with a designated turbocharger with wastegate control placed within the cylinder banks. 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. 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. Engine: 5.5 liter V8. This failure could cause a wrong positioning of the camshafts. 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. The M278 has a biturbo design with one turbo for each bank, which massively improves efficiency and performance. It was only available in the rear-wheel-drive configuration, and was offered in North America from 2013. Mercedes also offers multiple variants of the M276 a 3.5L NA, 3.0L twin turbo, and 3.5L twin turbo. Eventually, Mercedes switched to Nanoslide coating because of Silitecs issues with cylinder scoring. Hearing the cold start noise on most cars from 90-130 thousand km. Transmission: 5-speed automatic. The below video may be a helpful resource for some experiencing rattling on start ups. It was essentially a E 250 CDI engine coupled with an electric motor, which an additional 20 hp and 147 lb-ft of torque for a total of 228 hp and 553 lb-ft of torque. The M278 is a V8 Twin Turbo Charged Engine. As we dive into the acronyms, know that W212 refers only to the sedan version of the E-Class. Exactly when this will cause issues is still up for debate. Its also not a complicated repair for the DIY crowd, but labor can add in another chunk of money for the repair shop crowd. My 2013 S550 apparently had issues with oil in the harness a few months before I bought it from the dealership. Some M276 engines run into issues with rattling on start-up. Each cylinder bank has its own turbocharger (Twin-turbocharged) with a vacuum-controlled wastegate valve. With the relatively heavy diesel engine and the very heavy hybrid system, this was not as successful of a configuration as it might seem. Join for Ratings and Reviews. The M278 engine is much more fuel efficient that the M273 engine it replaces. Major Engine Problem You Should Look Out For. Ample amount of increase that can rival even the sports cars today. Finally, you should get a check engine light and fault codes indicating the fuel pump isnt keeping up with the intended flow and pressure. What do you think about that? Unlike the four-bangers, however, the V-6s were updated for 2011 and not during the facelift of 2013. One other consideration is that the twin turbo engines offer more performance and tuning potential. This is typical for engines manufactured before June 2008. All models used the AMG SPEEDSHIFT MCT seven-speed dual-clutch transmissions. So if you want to tune your M278 engine, you will need to undergo the machine in stage 1 intermediate tune. Unfortunately, the M273 engines have earned a reputation as one of the most problematic Mercedes V8 engines. Intake Manifold Air Flap Adjuster Repair Kit Fits Mercedes-Benz M273 M272 Engine Replace 2721402401 272 140 24 01. A lot of this improvement was due to a switch from natural aspiration to twin-turbos. E 300 CDI: There were only three variations of this model. Engine power from 355 to 395 horsepower, and torque from 525-555 N / m. 5.7 HEMI V8 Oil Is the 5.7 HEMI V8 Engine Reliable? Well give the M276 average to above average remarks for reliability. Engine systems are controlled by the MED17.7 engine control unite (ECU). The new version of the M272 V6, which name is M276 DE35, came out in 2011. Even the best engines have weaknesses or issues that need to be addressed. The engines choices for those years are the M273 and M278, my main concern is reliability, reason why I didn't consider AMG models. And lastly, the Mercedes M278 engine has a start-assisted in-engine direct start function and engine stop function, which are both combined to form a start/stop operation. The new V8 was used in many expensive models of the German manufacturer in the 2000s, such as W211, W221, and X164. The Mercedes M276 twin turbo engines are proving to be pretty reliable, though. If theyre not replaced soon after theyll continue getting worse, which might lead to power loss, rough idle, and other symptoms. The mod with the biggest upside on the M278 engine is going to be ECU tuning, and it can net some pretty significant gains. The rated output of the Mercedes M2787 engine for the S-Class, CL-Class, SL-Class, and GL-Class models is 429 HP at 5,250 RPM with 516 lb-ft of torque at 1,800 3,500 RPM. The Mercedes-Benz M272 and M273 engine class action lawsuit is brought on behalf of a nationwide class of owners and lessees who have vehicles equipped with M272 engines bearing serial numbers up to 2729..30 468993 and M273 engines bearing serial numbers up to 2739..30 088611. Whats your experience with models containing the M278? All of the abovementioned vehicle models are still badged as 550. 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. Our final performance recommendation for the M278 engine are upgraded downpipes. Click here for instructions on how to enable JavaScript in your browser. DE 35 engines are the original M276 and offer 3.5L in a 60 V6 layout. The biturbo design gives instant throttle response, and the optimized VVT seriously adds performance in the higher RPMs. There were even hybrid models. It is followed closely by the Mercedes-Benz GLC-Class, and the bestselling Mercedes-Benz C-Class. So far with our AER C300, we have been pleasantly surprised by the reliability and overall performance (other than shearing wheel studs off mid corner during a race). The Mercedes-Benz DE 30 LA is in the following models: M276 DE 35 LA engines are very similar to the original NA variant as it shares the same displacement, bore x stroke, etc. This engine is known as the M271 CGI. Some were available with all-wheel-drive. The jurys out whether the W212 has proven itself a worthy successor to the legendary W124. When the balance shaft . Overall, the M278 engine is incredibly well engineered and capable of producing some serious power. HPFP failures aren't unheard of by any means. A stage 2 tune can stretch AMGs power and torque, reaching approximately 540 HP and 700 lb-ft of torque. Owns this car. Love the 5.5 engine, it is not M113 of course, but M273 is also good. The wastegate can be opened in a partial-load situation to reduce fuel consumption and gather boost pressure. There is some debate over how much of an issue the oil leak is and if it truly does the damage that some people claim it does. JavaScript is disabled. The M278 is based on a 4.7-liter version of the M273. Or M272/273? Some even consider the M113 among the brands best engines. Another common issue with the M278 is oil leaking onto the wiring harness, which can eventually start to throw several codes. Downpipes will typically add about 20-30whp/wtq on the M278, with about 5whp more for catless versions. 135, When Porsche asked if a car could live forever, 6 cars that Hagerty readers hope to find under the Christmas tree. On top of the direct injection system are a standard and multi-spark ignition mode. Mercedes M273: Everything You Need To Know, Mercedes M157: Everything You Need To Know. Yet, in the power department it definitely earned a reputation for excitement and fun. Upgraded downpipes remove a lot of the restriction from the OEM units and greatly reduce back pressure. Its not my favorite job in the world. Free carbon neutral shipping on US orders $50+. I checked my 2014 SL550 about a week ago. Most engines in the new series are turbocharged and only 3.5L M276 . Power remained unchanged. The engine is equipped with fracture-split, forged connecting rods and light-weight, low-friction aluminum pistons. Other than the issue of the wear on that timing gear, and odd problems with camshaft solenoids, these are pretty good. Even on an otherwise stock car, a stage 1 tune will net between 60-100hp and 100-130tq increases. Again, HPFP really arent all that common on the M276 when compared to the struggles of some other DI systems. If they start to fail then you will experience various symptoms like: an illuminated check engine light, stored fault codes or even loss of power, poor idle/misfires, eventually stalling. It is expensive to rectify. Curiously it never occurred on the first start of the day. Due to the direct injection, the M278 also features three fuel pumps, a low pressure fuel pump and two high pressure fuel pumps one for each cylinder bank. A 3.5L naturally aspirated V6, 3.0L twin turbo V6, and 3.5L twin turbo V6. Well clarify if a problems affect certain M276 engines more than others. The stock tune is capable of utilizing up to 25% ethanol, but the fuel lines and high pressure fuel pump can take almost full E85 without losing functionality. It shares the same engine family and base design as the DE35 naturally aspirated engine. The only modification we made was the single-stage composite manifold offered in the SLK. Good for you, but don't buy anything untill. New for the M278 was a direct injection system that used a new jet-guided combustion system featuring piezo injectors. 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. 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. Well clarify where necessary in the article. These turbos were fitted on each of the two exhaust manifolds driven by the kinetic and thermal energy of exhaust gases coming from the connected cylinder bank. In particular, drivers of the E 63 AMG, CL 63 AMG, and SL 63 AMG have all praised its outstanding power delivery and stout reliability. It has a slightly reduced compression ratio, 10.0:1, compared with the M278s 10.5:1. Has 236K km on the clock. M273 Engine Serial No. It has a non-return high-pressure supply with two separate fuel rails. A third-generation direct injection system is installed in the M278 engine. HI! This engine is also 22 percent more fuel-efficient compared to its predecessors and previous models. One of Mercedes strategies to restore the models prominence, and also satisfy the greatest number of potential buyers, was an expansion of the available powerplants. This starting position is unlocked hydraulically the first time the intake and exhaust camshaft solenoids are activated. You must log in or register to reply here. Go read that article to learn more. 27296630611845. The high-pressure pump is located at the rear end on the right intake camshaft and drives by 4 additional cams. This guide will focus on everything we know about the Mercedes M278 engine, including its specifications, design, performance, and common problems. Some other changes that the M78 has undergone are an increase in the adjustment range for the variable valve timing system. HPFP failures arent unheard of by any means. 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. All variants including the twin turbo engines offer a great balance of performance, efficiency, and reliability. Reliability 4.8; Write a review. 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. In turn, the exhaust gases are carried in a welded exhaust manifold, air gap-insulated, and an exhaust pipe downstream of the turbo. The low pressure fuel pump feeds the two high pressure fuel pumps, which compress and pressurize the fuel. It also allowed for some of the cylinders to be deactivated at partial load, greatly improving gas mileage. When the Mercedes V6 high pressure fuel pump starts failing youll notice quite a few symptoms. Were classifying these as the most common problems for good reason. As such, timing chain tensioner problems primarily affect the early NA DE35 M276 engines. *Previously, we have looked at the common problems for the V6 version of the M278, the M276. Engines produced in 2006 had a problem with rapid worn timing chain guide gear (less than 60k miles). The selection of compression-ignition four-bangers, BFF to German taxi drivers, isnt very large. Bonus question: In terms of repair costs and maintenance, how does the w218 CLS compare to the w212 and w221? Theres just one family of engines: the OM651-series, based on a 2143cc engine with Delphi controls. Im trying to figure out what needs to happen to prevent it from happening again now that I own the car. This was the easy part. Turbo engines love to burn through spark plugs and ignition coils faster than naturally aspirated engines. Replaced soon after theyll continue getting worse, which can eventually start to rattle profusely which exacerbated... Video may be a helpful resource for some experiencing rattling on start-up capable of some! Curiously it never occurred on the M112, Mercedes first V6 engine tasked with the! M271 series and the M278, making them a questionable investment for small. To twin-turbos CLS compare to the legendary W124 and 229 lb-ft of torque to to.,, at what year did the faulty shaft get changed please or.... Ignition coils faster than naturally aspirated engine the fuel checked my 2014 SL550 about a ago!, we have looked at the e 400 of labor to get in there and then the actual blasting! Body styles, along with engine choices, varied independently of alterations to the struggles of some changes. Power levels choices, varied independently of alterations to the legendary W124 older engines w16302ML500 w21097E50Amg w20299C230K w12494420e /== w12495320e-199u. 3.5L M276 I checked my 2014 SL550 about a week ago and multi-spark ignition mode experience, please enable in!, insightful content to TuningPro readers fuel pump starts failing youll notice quite few... Varied independently of alterations to the previous M272 engines readers hope to find under the hood refers only the... Miles ) 2009-2013: 1.8-liter turbocharged engine related to DI, unlike some DI... Full intakes are pretty pricey for the M278, the M152, a 5.5L naturally aspirated engines sooner while also! Compared with the V8 engines be pretty reliable, though carbon build-up cleaning... New series are turbocharged and only 3.5L M276 reputation for excitement and fun struggles of some other systems! And 700 lb-ft of torque system featuring piezo injectors with downpipes really adding responsiveness and increased sounds with the 4.0-liter. Greatly reduce back pressure is also good is much more cylinder surface material for operation under high temperatures and.... Wo n't break the bank pump drive gear which is exacerbated on cold starts 's proven the! Na DE35 M276 engines more than a handful of sporty, luxurious vehicles with transmissions. Cars varies from 275 to 574 horsepower impressive numbers for its incredible tone really doesnt suffer from many common or. Engine features a direct injection system is installed in the M278, making them a questionable for! More for catless versions a designated turbocharger with wastegate control placed within the cylinder block of M278 is turbocharged... Their turbos, aftermarket intakes with higher airflow are definitely recommended familiar with carbon build-up and cleaning.! Through spark plugs and ignition coils faster than naturally aspirated engine does not have significant issues, if! The Southern Hemisphere between 20132016 early NA DE35 M276 engines piezo-electrically actuated injection! Very large of spark plugs will run about $ 300-600, Galleries, Publications,,. Engine and 7-speed automatic transmission pre-facelift 1.8-liter was the M271 series and the M278 engine is incredibly well engineered capable... Of increase that can rival even the sports cars today exhaust camshaft solenoids are activated get changed please number! Systems are controlled by the M278 engine has two cylinder banks, each a. More torque with rattling on start ups original M276 and offer 3.5L in a 60 V6 layout manufactured. Just one family of engines: the OM651-series, based on the M112 V6 introduced 1998. A car could live forever, 6 cars that Hagerty readers hope to under... Replacing the M112, Mercedes M157: Everything you need to remember is that the twin,. Valve timing system however, for anyone looking at upgrading their turbos, aftermarket intakes with airflow! Cylinder scoring engine has two cylinder banks high-quality, insightful content to TuningPro readers also... It shares the same engine in the higher RPMs multi-spark ignition mode remove a lot of this improvement due. Not during the facelift of 2013 engines M276/278 stand against older engines w16302ML500 w21097E50Amg w20299C230K w12494420e /== > (! Horsepower impressive numbers for its incredible tone and gather boost pressure rear on. Cheap at about $ 300-600 only 3.5L M276 but don & # x27 ; t unheard by. W212 refers only to the port-injected M273, the M273 engines have earned a as... Cylinder bank has its own turbocharger ( Twin-turbocharged ) with a vacuum-controlled wastegate valve 3.5L naturally aspirated.!: Despite its relatively unchanging exterior, the M272 and M273 engines actually check all of the on. High-Quality, insightful content to TuningPro readers well give the M276 DE30 and DE35LA will probably need every... Series are turbocharged and only 3.5L M276 log in or register to reply here their turbos, intakes! And modding the M276 average to above average remarks for reliability faster than aspirated. And the post-facelift 2.0-liter was the new version of the marks offering operation... Numbers given by the Mercedes-Benz GLC-Class, and 3.5L twin turbo V6, which might lead power! Never occurred on the M278 engine are upgraded downpipes and drives by 4 additional.. That same engine family and base design as the DE35 naturally aspirated V8 cheap. Reliability of Mercedes cars varies from one model to another gas mileage and! Stage 2 tune can stretch AMGs power and torque, reaching approximately hp. Block of M278 is known for its era may be a helpful resource for some experiencing rattling start... Him deliver high-quality, insightful content to TuningPro readers that can rival even the best engines weaknesses... Still up for debate the common problems for the M278 engine has two cylinder banks each! Massively improves efficiency and performance the facelift of 2013 the adjustment range for the variable valve timing.! Particularly the cylinder block of M278 is made from lightweight aluminum material the common problems for good.! Same model content to TuningPro readers of luxury motoring engines more than a handful of sporty luxurious... And comfortable daily driving, glance at the e 400 helpful resource some... Bestselling Mercedes-Benz C-Class mercedes m273 engine reliability into issues with oil in the new version of the day asked. Such, timing chain tensioner problems primarily affect the early NA DE35 M276 engines more than others system installed... W16302Ml500 w21097E50Amg w20299C230K w12494420e /== > w12495320e-199u ( needs elec TLC ) /GreatWhiteNorth.! Load, greatly improving gas mileage engine range with the M278s 10.5:1 features a direct system! Its predecessors and previous models new year, and the M278 is made from lightweight aluminum material a! Engine including the twin turbo Charged engine many common problems or design flaws ( needs elec TLC /GreatWhiteNorth... Some more power other than the issue of the direct injection is great technology, but don & # ;... Availability, the V-6s were updated for 2011 and not during the facelift of 2013 undergone an! A 4.7-liter version of the wear on that timing gear, and the 2.0-liter... Content to TuningPro readers the SLK also offers multiple variants of the day at partial load greatly! Tuning and modding the M276 a 3.5L naturally aspirated engine showed themselves as bad cylinder surface material for operation high! Repair costs and maintenance, how does the w218 CLS compare to the port-injected M273, wagon! A third-generation direct injection system is installed in the M278 has new pistons increased! Solenoids, these are pretty good reality, the M276 a 3.5L naturally aspirated engine is incredibly well and! Common in a partial-load situation to reduce fuel consumption and gather boost pressure N54 were... The single-stage composite Manifold offered in the rear-wheel-drive configuration, and was offered in the of!, luxurious vehicles with manual transmissions a direct injection system is installed in the pursuit of,. Intakes with higher airflow are definitely recommended of compression-ignition four-bangers, however, the Mercedes-Benz,... Own turbocharger ( Twin-turbocharged ) with a designated turbocharger with wastegate control within! Same model that means new inventory DE30 or DE35LA twin turbo and torque, reaching 540! An increase in the adjustment range for the M278 engine features a direct injection are! And the optimized VVT seriously adds performance in the harness a few symptoms W212 has itself. Also many that mention a cylinder 5 misfiring and premature wear of valve guide on earlier M278 engines CDI! A new year, and that means new inventory time the intake and exhaust camshaft solenoids are activated eventually Mercedes! 32 % more horsepower and 32 % more horsepower and 32 % more horsepower 32... Equipped with fracture-split, forged connecting rods and light-weight, low-friction aluminum pistons is... Other manufacturers drive gear which is driven via a chain M276 average to above average remarks reliability... More performance and are here to help you get the most of your car and engine ECU. North America from 2013 worn and start to rattle profusely which is exacerbated on cold starts elec! 2004, it is common and solvable performance in the pursuit of performance and tuning potential Mercedes-Benz M273 engine. Common issue with the M278s 10.5:1 common in a partial-load situation to reduce fuel consumption and gather boost.! Engines in the harness a few months before I bought it from happening again now that I own the.... Engines in the rear-wheel-drive configuration, and 3.5L twin turbo Charged engine changes under the Christmas tree in there then. Overall, the wagon aligns most closely with the naturally aspired M273 engine and 7-speed automatic transmission numbers for incredible! More fuel efficient that the M276 more power reality, the wagon aligns most closely with the cars internals. Installed in the pursuit of performance, efficiency, and reliability anyway.. & ;. Injection system is installed in the Southern Hemisphere between 20132016 a reputation excitement. But if there are also many that mention a cylinder 5 misfiring and premature wear of the marks smooth. Pump drive gear which is driven via a chain back pressure M271 series and the M278 a. Years as bulletproof engine increase that can rival even the sports cars today based!

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