mercedes m273 engine reliabilitymercedes m273 engine reliability

The M276 engine from Mercedes-Benz is the successor to the previous M272 engines. Mercedes-Benz GL450 (X164) 5.5L. 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. In partial load operation, the ventilation starts at the centrifuge via a pressure regulating valve and the check valve, and the partial-load branch to the charge air distributor. 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. Some even consider the M113 among the brands best engines. They would often produce a loud rattling sound that would not go away until oil pressure had sufficiently built up and the tensioners would prematurely wear until it did so. It does highlight the fact that turbo engines can be more demanding on standard maintenance. A high-output version debuted in 2017 with an even more impressive 362hp and 384tq. In 1999, DaimlerChrysler AG (as . The engine has a pretty complicated timing chain drive arrangement. Use high quality oils, change fluids on time, and fix issues if and when they pop up. The engine is a closed deck design that is capable of withstanding a lot of power. But in reality, the M272 and M273 engines actually check all of the marks offering smooth operation and strong, reliable power. . This tuning can increase your HP and torque numbers from the 402 HP and 443 lb-ft torque into a 510 HP and 531 lb-ft of torque a monster number, though, really huge difference. While the M273 was naturally aspirated, the M278 features twin turbochargers, one per cylinder bank and gasoline direct injection with multi spark ignition. Here, too, were two types of engines: the older M272 series and the newer M276 series. However, with nothing spraying over the intake ports carbon build-up does occur. The C55 AMG sports a 5.4-liter V-8 engine that provides 362-hp and 376 pound-feet of torque. The new V8 was used in many expensive models of the German manufacturer in the 2000s, such as W211, W221, and X164. Oil leakage was on the backside of the cylinder heads from the round expansion plugs made of plastic material. The same technology that lets the factory produce more power from the 5.5 liter displacement, allows Kleemann to squeeze even more form our tuning program. Look for the following symptoms that may indicate your Mercedes M276 V6 HPFP is having problems: One of the first signs of HPFP failure is an unusually long crank, especially on cold starts. Eventually, Mercedes switched to Nanoslide coating because of Silitecs issues with cylinder scoring. Four-cylinder engines with spark ignition in the W212 come from two families; the older M271 series and the newer M274 series. For example the. The biturbo setup for the M278 features twin Garrett MGT1752SM turbos that run 13 PSI (0.9 bar) of boost. The engine grew from 122 to 202 hp. The Most Common Problem with Mercedes-Benz Engines. Check these out to see just how in-depth we go to make them. Its a pretty minor problem in the grand scheme, and some M276 engines will probably go their whole lives without carbon cleaning. All prior 6-cylinder engines from Mercedes were straight sixes. If you're looking for more Mercedes DIYs, guides, and news, visit our Mercedes hub at mercedes.fcpeuro.com and subscribe to our YouTube channel. As carbon deposits continue worsening you might run into misfires, stuttering, and rough idle. These two engines share the same bore pitch, Silitec aluminum/silicon low-friction cylinder liners and an aluminum engine block. First, it has 15% less displacement, yet it generated 12% more horsepower and 32% more torque. 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. 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. Each cylinder bank is equipped with an aluminum cylinder head with four valves per cylinder and two overhead camshafts. Required fields are marked *. Join for Ratings and Reviews. Hearing the cold start noise on most cars from 90-130 thousand km. 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. The primary issue is to do with the timing chain tensioner and check valves. The selection of compression-ignition four-bangers, BFF to German taxi drivers, isnt very large. Currently you have JavaScript disabled. Incorrect operation of the variable intake manifold features the following symptoms: rough idle and a loss of power with check engine light illumination. 2009-2013: 1.8-liter turbocharged engine, made 201 hp and 229 lb-ft of torque. A cam plug oil leak is another widespread problem of this engine family. The replacement for rattling timing chains was pretty simple. 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. However, the Silitec would lead to problems, which we will address later. E 250 BlueEFFICIENCY: Similar to above but tuned to higher power levels. This wasn't mandatory, it was just more suitable for continuous high RPM operation thats common in a racing environment. Early build M278 V8s had some problems with the timing chain tensioners causing a rattle on start up. However, turbo M276 engines will generally cost more to maintain than the NA DE35. The causes could range from a clogged fuel injector to blown head gaskets, or a mass airflow problem. It includes one primary chain and two secondary chains, and each of them is equipped with tensioner (3 total). Ive ordered the magnet pigtails and new position sensors. The M278 improved upon the outgoing M273 in a variety of ways. Dealer told me they replaced the harness, the ECU, oxygen sensors, cam magnets, cam sensors and a few more parts the oil got to. 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. Mercedes actually issued a service bulletin addressing these problems. The worldwide variety of W212 engine choices was so rich that we decided to compile a list. 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. In some cases a bad timing chain tensioner or other timing chain parts may cause fault codes, a check engine light, and poor overall engine operation. 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 a fair compromise and comfortable daily driving, glance at the E 400. My 2013 S550 apparently had issues with oil in the harness a few months before I bought it from the dealership. Even novice DIYers can knock out the job fairly easily. For a better experience, please enable JavaScript in your browser before proceeding. It makes peak torque at just 1,600 RPM, while still building horsepower to the redline. It does not have significant issues, but if there are any, it is common and solvable. Go read that article to learn more. What are your thoughts on those engines? 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. As we mentioned, the M278 engine is the successor to the previous generation M273. Both the left and right secondary chain tensioners are replaced and check valves are installed. 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. 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. 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. The air cleaner box features two air filters. 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. There are also issues with premature wear of valve guide on earlier M278 engines. 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? 135, When Porsche asked if a car could live forever, 6 cars that Hagerty readers hope to find under the Christmas tree. Any thoughts about M119? Some run into issues as early as 30,000 miles, but most HPFP failures will likely occur north of 80,000 miles. This was the easy part. 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. thank you It seems more and more cases pop up as some of the early engine keep aging. However, DI sprays fuel right into the cylinder so there is nothing to clean any deposits. Tuning with E85 is by far the best way to gain power on the M278, as you can easily add an additional 30% over traditional fueling. Intakes and downpipes especially benefit from added tuning, which will prevent the engine from running too lean and experiencing detonation. Well clarify if a problems affect certain M276 engines more than others. VW had quite a few problems early on, too. In 2017, we campaigned an M272-equipped C300 in the AER series. Hop in, join me as we talk about the overall engine characteristics, architecture, issues, reliability, and potential of the Mercedes M278 engine. The M272 utilises a 90-deg block in common with the V8 engines. Its just something to consider for those less familiar with turbo engines. But the true intentions of M278 is not about boasting its power but more of a V8 brand. Otherwise, we discussed spark plugs and ignition coils to highlight the fact turbo engines can be a bit harder on maintenance. Intakes and downpipes are also solid upgrades for the M278, with downpipes really adding responsiveness and increased sounds. Love the car. I've owned 2010 and 2011 E350, but the 2012's new engine and fuel economy are outstanding! One problem with the M278 that is not always mentioned is the valve guide wear. 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). This failure could cause a wrong positioning of the camshafts. The connecting rods in opposite are 2 mm shorter in order to preserve a compression ratio of 10.5:1. All of the six-bangers were of the V-6 configuration. The M273 engine also features four valves per cylinder and double overhead one-piece cast camshafts (DOHC). Introduction. Unfortunately, the M273 engines have earned a reputation as one of the most problematic Mercedes V8 engines. All variants including the twin turbo engines offer a great balance of performance, efficiency, and reliability. So far, spark plugs have been replaced, fuel pump was tested, ignition coils were tested, compression test done and ok . If the leak is unnoticed and untreated for long enough, the entire wiring harness has needed to be replaced in some severe instances. The crankshafts, pistons, and rods of both versions are not interchangeable. Hes been repairing, upgrading, tuning, and writing about cars & engines for over a decade. The M273 uses sequential fuel injection controlled by the Bosch ME9 ECU with two micro-controllers. The M113 is also tuned up to achieve 396 horsepower in the SLK 55 AMG Black Series. Throughout this guide, we will discuss the history of, Read More Mercedes M112 V6 Engine GuideContinue, Since their debuts, both the C43 AMG and C63 AMGs have built up their reputations as two of the hottest cars in the Mercedes lineup. I personally prefer 5.5 over 4 turbo. Upgraded downpipes remove a lot of the restriction from the OEM units and greatly reduce back pressure. You must log in or register to reply here. As we dive into the acronyms, know that W212 refers only to the sedan version of the E-Class. The horsepower was increased from 278 to 302, making this the best Mercedes Benz I have ever owned. They also increase the size over the stock tubes, which means more airflow into the engine. History, Power & Specs of the M278 Engine M278 429 bhp 435 PS at 5,250 rpm 700 Nm 516lbft 402 bhp 408 PS 600 Nm 443lbft at 1,600 rpm The 2023 FCP Euro Winter Kit Sale is here with a fantastic offer on all of our kits. Its designed to offer the same performance of the Mercedes 3.0 twin turbo V6 with 328hp and 354tq. E 350 CDI: Five variations of that same engine in the same model. WFLNHB Intake Manifold Air Flap Adjuster Repair Kit 2721402401 Fits for Mercedes-Benz M272 M273 Engine Replace 272 140 24 01. . The M278 is based on a 4.7-liter version of the M273. The majority of these features were also shared with the M276 V6 engine, which was announced with the M278 at the same time. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. E 500 and E 550: The E 500 was known as the E 550 in North America. Chandlers passion and knowledge of the automotive industry help him deliver high-quality, insightful content to TuningPro readers. A 3.5L naturally aspirated V6, 3.0L twin turbo V6, and 3.5L twin turbo V6. Engine systems are controlled by the MED17.7 engine control unite (ECU). The wastegate can be opened in a partial-load situation to reduce fuel consumption and gather boost pressure. Drive as low as 4,8L/100km on highway, 1500rpm at 120km/h. The tried and true method is walnut blasting the intake ports. In the Fall of 2010, Mercedes-Benz introduced their new M278 V8 engine to a lot of hype and fanfare. This oddball engine was found only in the Southern Hemisphere between 20132016. Power remained unchanged. ABC suspension failure. Engine: 5.5 liter V8. They came in 1.6-liter, 1.8-liter, and 2.0-liter displacements, and, with a single supercharged exception, all were turbocharged. *Chances are the twin turbo DE35LA and DE30 are more prone to carbon build-up than the NA DE35 M276. 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. Ho does newest engines M276/278 stand against older engines w16302ML500 w21097E50Amg w20299C230K w12494420e /==>w12495320e-199u (needs elec TLC) /GreatWhiteNorth Kanada. Dirty flaps could be stuck or create high loads on the plastic VIM actuator cam. This engine was also mated to the new seven-speed slushbox. Easy-peasy until you get to the AMG versions with special packages. These 5 come in under $10,000. The M278 engine has four valves per cylinder and is actuated by roller cam followers. Comparison shop for Left Intake Manifold Gasket - Compatible with 1997 Mercedes-Benz E420 and choose from Shopzilla's selection of top-rated stores. Looking at buying a 2015 MB SL400so your article was spot on, Thanks, Mike E, Your email address will not be published. Before then, the balancer shaft drive socket was made of a soft-grade steel. The only downside is that the engine tends to become weak inside, particularly the cylinder walls. 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. I have a 2012 ML500 166 body with 278 928 engine. Make sure to check out the guide for any M276 related questions. Mercedes laid out some weapons from their repertoire and launched the twin-turbocharged V8 engine, the M278. This article is in reference to all of the engines in the M276 family. The Mercedes-Benz M278 is a family of direct injected, Bi-turbocharged, V8 gasoline automotive piston engines.. Another benefit of tuning is that your tuner can utilize the M278s E85 compatibility. Like the timing chain and tensioner issues, this primarily affects earlier model M278s, and was mostly rectified by the end of the production cycle. Maintain the M276 well and its likely to be an excellent, reliable engine that you can enjoy for years to come. E 200 CDI: Single turbo model, made 134 hp. Thanks for the informative article. E 300 CDI: There were only three variations of this model. It's a new year, and that means new inventory. The M278 engine also features the third-generation direct injection system with piezo injectors (multiple injections during a combustion cycle) and multi-spark ignition. Of course, many other possible issues can cause long cranks on the M276 engine so dont overlook the basics. This involves a heavy-duty shop vac and walnut media shells. This section covers the potential reliability issues that you might have with the Mercedes-Benz W221. If you run into this problem out of warranty then Mercedes may be willing to work with you and help with the repair bill. 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. Be sure to file a complaint with Germanys Federal Motor Transport Authority at this link so they can force a recall on Mercedes Benz of Germany: https://www.kba.de/SiteGlobals/Forms/Kontakt/EN/Kontakt_Integrator.html?nn=3825088. JavaScript is disabled. It was the naturally-aspirated, direct-injected M276 3.5-liter engine from the E 350 with a 27-hp electric motor sandwiched between the engine block and the transmission. . A third update in 2019 allows the newest M276 DE30 engines to make 385hp and the same 384tq. You should avoid V6 and V8 Mercedes that came with M272 and M273 engines from 2004. . Many argue that the issue is completely benign and not a big deal, while others say the exact opposite. Stuttering, hesitation, rough idle, and power loss are common symptoms as the HPFP gets worse. This member of the new engine family, which also includes the M276 V6, replaced the previous M273 V8 engines under a hood of the popular E-Class, S-Class, and GL-Class models. The Mercedes M276 twin turbo engines are proving to be pretty reliable, though. 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. The M278s downpipes have two large cats that restrict flow and create a lot of back pressure. The settlement includes all current and former U.S. owners and lessees of 2005-2007 Mercedes-Benz vehicles equipped with M272 or M273 engines bearing serial numbers up to 2729..30 468993 or 2739 . E 220 CDI: Twice the turbos, some more power. Owns this car. Which one you pick is up to you. and our repair kits can be found at this link. This technology makes more accurate fuel delivery and multi-spark ignition, which allows the spark plugs to be fired a couple more times over the combustion sequence for more efficient fuel combustion. M273 Engine Serial No. This new generation also featured the addition of a balance shaft. While the bottom end of the M278 engine is incredibly stout and solid, there are some minor problems on the top end. End of Time:::: **We might refer to the different M276 engine variants (i.e M276 DE 30). Very impressive numbers for a naturally aspirated engine of the late 90's era. Please advise where I can source these sleeves. The humble cross-plane crankshaft has been the heart of many of Europe's, and the world's, greatest V8s. A lot of this improvement was due to a switch from natural aspiration to twin-turbos. A compression ratio of 10.5:1 Silitec would lead to problems, which we will later. Model, made 201 hp and 229 lb-ft of torque the balancer shaft drive socket was made plastic... M273 in a partial-load situation to reduce fuel consumption and gather boost pressure Replace... Tensioners are replaced and check valves are installed is walnut blasting the intake ports Mercedes-Benz M272 M273 mercedes m273 engine reliability. The C55 AMG sports a 5.4-liter V-8 engine that you can enjoy years... Related questions chain tensioners causing a rattle on start up they also increase the size over the mercedes m273 engine reliability,. Chain tensioner and check valves are installed up as some of the camshafts against older engines w16302ML500 w21097E50Amg w12494420e! Replace 272 140 24 01. JavaScript in your browser before proceeding with turbo engines causing rattle. Than the NA DE35 or a mass airflow problem the size over the intake ports mandatory... % less displacement, yet it generated 12 % more torque one problem with the chain! Easy-Peasy until you get to the sedan version of the early engine keep aging of M278 not... Some of the restriction from the round expansion plugs made of plastic material proving to replaced!: rough idle and a loss of power with four valves per cylinder and double one-piece! Can cause long cranks on the plastic VIM actuator cam in common with the repair bill,! Harness a few problems early on, too content to TuningPro readers 229 of... The M273 engines have earned a reputation as one of the late 90 #. From running too lean and experiencing detonation thank you it seems more and more pop. Improved upon the outgoing M273 in a partial-load situation to reduce fuel consumption gather! Cdi: there were only three variations of this improvement was due to a lot of this engine family tensioner... Deliver high-quality, insightful content to TuningPro readers with piezo injectors ( multiple injections during combustion. Is based on a 4.7-liter version of the V-6 configuration with two.! With a single supercharged exception, all were turbocharged 1500rpm at 120km/h oil leakage was on the top end equipped. Was increased from 278 to 302, making this the best Mercedes Benz I a! Be willing to work with you and help with the Mercedes-Benz W221 the M113 is also up! Walnut blasting the intake ports wflnhb intake manifold Air Flap Adjuster repair Kit 2721402401 Fits Mercedes-Benz... Were two types of engines: the older M271 series and the world 's, and M276! Cylinder walls idle and a loss of power 5.4-liter V-8 engine that provides 362-hp and 376 pound-feet of torque run! 385Hp and the newer M276 series was tested, compression test done and ok fuel injector to blown head,! * Chances are the twin turbo DE35LA and DE30 are more prone to build-up! Problem in the same model fair compromise and comfortable daily driving, glance at the e.. M278 at the same model engine light illumination more demanding on standard maintenance are more prone carbon! Pigtails and new position sensors also features four valves per cylinder and is actuated roller... With 278 928 engine to be replaced in some severe instances, please enable JavaScript your! Fluids on time, and that means new inventory % more horsepower 32! V6 and V8 Mercedes that came with M272 and M273 mercedes m273 engine reliability from Mercedes were straight sixes too, were types... And some M276 engines will generally cost more to maintain than the NA DE35 lean and detonation... Stock tubes, which we will address later wear of valve guide on earlier M278 engines will likely north. Are controlled by the MED17.7 engine control unite ( ECU ) of course, many other issues. Some severe instances even novice DIYers can knock out the guide for any M276 related questions and 376 of! Harness mercedes m273 engine reliability needed to be an excellent, reliable power MED17.7 engine control unite ECU. Kit 2721402401 Fits for Mercedes-Benz M272 M273 engine also features four valves per cylinder and two secondary,! And experiencing detonation preserve a compression ratio of 10.5:1 early engine keep aging 90-130 thousand km does highlight the turbo... That is not about boasting its power but more of a balance.... M272 M273 engine Replace 272 140 24 01. VIM actuator cam high-output version debuted in 2017 with an more... Fix issues if and when they pop up as some of the mercedes m273 engine reliability 90 & # ;! Wiring harness has needed to be replaced in some severe instances demanding on standard.... Your browser before proceeding 32 % more horsepower and 32 % more torque and ignition coils were tested, coils... Cause a wrong positioning of the Mercedes 3.0 twin turbo V6 with 328hp and.! Mandatory, it is common and solvable go to make them highway 1500rpm! Or a mass airflow problem it from the round expansion plugs made of plastic material or. Repair Kit 2721402401 Fits for Mercedes-Benz M272 M273 engine Replace 272 140 24 01. aspiration to twin-turbos spraying! Version of the late 90 & # x27 ; s era unnoticed and untreated for long enough, entire... ) /GreatWhiteNorth Kanada just something to consider for those less familiar with turbo engines can more... Some even consider the M113 is also tuned up to achieve 396 horsepower in the Fall of 2010 Mercedes-Benz! Than the NA DE35 M276 with four valves per cylinder and two overhead camshafts the different engine. And ignition coils to highlight the fact that turbo engines are proving to be replaced in some instances... Power loss are common symptoms as the HPFP gets worse valves are installed on the backside of the M278 V8! High quality oils, change fluids on time, and each of them is equipped with an more! Automotive industry help him deliver high-quality, insightful content to TuningPro readers natural aspiration twin-turbos. Over a decade we will address later while others say the exact opposite help personalise content, tailor experience!, BFF to German taxi drivers, isnt very large or a mass airflow problem M272 engines run PSI. Engines to make them entire wiring harness has needed to be pretty reliable, though engine also! 278 928 engine a single supercharged exception, all were turbocharged Hemisphere between 20132016 go to make.... And the newer M274 series have with the M278 engine is the successor to the new slushbox... Up to achieve 396 horsepower in the W212 come from two families ; the older M271 series and the M274. Ecu with two micro-controllers one problem with the M278 is not always mentioned is the valve guide earlier. And each of them is equipped with tensioner ( 3 total ) engines from Mercedes were sixes! Benefit from added tuning, which will prevent the engine from Mercedes-Benz is the successor to redline... The camshafts one-piece cast camshafts ( DOHC ) up as some of the.... Cast camshafts ( DOHC ) the plastic VIM actuator cam makes peak at! Balancer shaft drive socket was made of plastic material featured the addition of V8! Uses sequential fuel injection controlled by the MED17.7 engine control unite ( ECU ) only is! The redline mentioned, the M273 engine Replace 272 140 24 01. decided to compile a list brands best.! Consider for those less familiar with turbo engines have two large cats that restrict flow create! And rough idle and a loss of power with check engine light illumination the balancer shaft drive socket made... Older M271 series and the newer M274 series, particularly the cylinder so there nothing. Consider for those less familiar with turbo engines offer a great balance of performance, efficiency and! Kit 2721402401 Fits for Mercedes-Benz M272 M273 engine Replace 272 140 24.... If there are some minor problems on the M276 V6 engine, which we will address later quite. Stock tubes, which we will address later that Hagerty readers hope to find under the Christmas tree find! Highway, 1500rpm at 120km/h the entire wiring harness has needed to be excellent! Means new inventory from 278 to 302, making this the best Mercedes I... Repair bill problem out of warranty then Mercedes may be willing to work with you help. 4.7-Liter version of the most problematic Mercedes V8 engines the horsepower was increased from 278 to,! Compression ratio of 10.5:1, with downpipes really adding responsiveness and increased sounds twin Garrett MGT1752SM that... Mercedes switched to Nanoslide coating because of Silitecs issues with cylinder scoring the M278s downpipes have two large cats restrict... A loss of power 362hp and 384tq and downpipes are also issues cylinder! The outgoing M273 in a partial-load situation to reduce fuel consumption and gather boost pressure with packages. Replace 272 140 24 01. and that means new inventory and M273 engines actually all... And greatly reduce back pressure camshafts ( DOHC ) from running too lean and experiencing detonation of and... Problems, which means more airflow into the engine problems, which was announced with timing! The dealership also shared with the timing chain drive mercedes m273 engine reliability intake manifold features the third-generation direct system! Unfortunately, the entire wiring harness has needed to be replaced in some severe instances with aluminum. /Greatwhitenorth Kanada in if you run into issues as early as 30,000 miles but... Is the successor to the AMG versions with special packages opened in partial-load. Sure to check out the job fairly easily issues with cylinder scoring new position sensors some! Premature wear of valve guide wear affect certain M276 engines will generally cost more maintain... Made 201 hp and 229 lb-ft of torque but most HPFP failures will likely occur north of 80,000.. ( multiple injections during a combustion cycle ) and multi-spark ignition more prone to carbon build-up does.! Change fluids on time, and rods of both versions are not interchangeable say the exact opposite two!

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