Poor design caused oil starvation issues to occur on startup, and cold starts were especially hard on the secondary timing chains. It also improved fuel economy by 22% and reduced CO2 emissions by the same amount. For example the. Each cylinder bank is equipped with an aluminum cylinder head with four valves per cylinder and two overhead camshafts. Zach is a founder of 8020 Media and TuningPro. The lifespan is likely about half that of NA engines. 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. "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. The pressure supplied to the rails lies between 120 and 200 Bar. BMW ran into endless issues with the N54 their first mass production turbo DI engine. This causes power loss, but its usually very hard to notice since it occurs slowly over the years. 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. Ample amount of increase that can rival even the sports cars today. The bottom end is practically bullet proof and can handle gobs of power, and the biturbo configuration delivers immediate power everywhere throughout the power band. The aluminum DOHC cylinder heads have 4 valves per cylinder. There were naturally-aspirated, turbocharged, and supercharged engines. What are your thoughts on those engines? Ive ordered the magnet pigtails and new position sensors. The M273 was a naturally aspirated 5.5L V8 that produced 382hp and 391tq in its final iteration. The 5.5L and 4.7L V8s are completely aluminum engines. You should avoid V6 and V8 Mercedes that came with M272 and M273 engines from 2004. . 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. This engine makes an impressive 342-362hp and 376-391 lb-ft of torque. For North American buyers, there is no one best engine choice. Both engines share the same die-cast full aluminum cylinder block with 90-degree V-angle and Silitec low-friction cylinder liners. Compression was raised to 12.6:1 to accommodate the lack of forced induction, but it featured the same bore and stroke. HPFP failures aren't unheard of by any means. 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. Its not a common issue on later models, but be on the lookout with the earlier M276 engines. Mercedes is known to make some of the most refined and potent engines in the world, but reliability is not as consistent. These small Honeywell turbochargers produce up to 0.9 bar (13 psi) boost pressure. WFLNHB Intake Manifold Air Flap Adjuster Repair Kit 2721402401 Fits for Mercedes-Benz M272 M273 Engine Replace 272 140 24 01. . Mercedes actually issued a service bulletin addressing these problems. 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). Drivers routinely praise the M278 for its reliability, engineering, and outstanding performance. 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. All of the six-bangers were of the V-6 configuration. This was new technology to V6 Mercedes engines that helps improve fuel efficiency, emissions, and performance. Of course, the major difference is the additional of twin turbos. 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. Carbon build-up is another interesting topic related to direct injection. You are using an out of date browser. The 2010-2011 S550 is a great choice if you want an upgraded look. Changes to coupe and convertible body styles, along with engine choices, varied independently of alterations to the sedan and wagon. Mercedes revised those plugs in the middle of 2008 and fixed that messy problem. 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. A stage 2 tune can stretch AMGs power and torque, reaching approximately 540 HP and 700 lb-ft of torque. I hope that this discussion cleared some confusion in your head regarding the Mercedes M278 engines architecture, issues, applications, potential, reliability, and overall impact on the automotive industry. Get it as soon . 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. Again, HPFP really arent all that common on the M276 when compared to the struggles of some other DI systems. Few problems should happen as long as they are regularly serviced and maintained. Incorrect operation of the variable intake manifold features the following symptoms: rough idle and a loss of power with check engine light illumination. It requires a major overhaul. Eventually, Mercedes switched to Nanoslide coating because of Silitecs issues with cylinder scoring. Its not my favorite job in the world. A bi-turbo setup with decent displacement can provide you at least larger coming straight from the factory. The intake manifold is prone to carbon build-up inside and on the flaps used to vary the length of the intake channels. It quickly gained popularity, being on the radar of most engine enthusiasts roaming to find and witness one of the truths engine styles. Hello everyone, I've have a bad headache with this m273, the car starts misfiring on cylinders 4 and 5 on startup, usually clearing after 5 mins. The Mercedes-Benz M278 is a 4.6-liter V8 direct-injected bi-turbo engine introduced in 2010. Some reliability simply comes down to luck of the draw. It is installed on the Mercedes-Benz W203, W204, CL203 (C-class), W211, W212, C207 (E-class), R171, R172 (SLK . Unfortunately, someone decided to cheap out on the quality of metal with this gear. 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 New for the M278 was a direct injection system that used a new jet-guided combustion system featuring piezo injectors. We mentioned the N54 engine and VW/Audi in the previous section. The wastegate is controlled through a vacuum from the mechanical vacuum pump mounted on the engine. The real purpose of adding in this section is to discuss the NA vs turbocharged M276 V6 engines. With the chosen piezo injection valve mated with the correct ignition timing, the first compression stroke of the cylinder could be employed for controlled combustion. In deference to the related M276 V6 engine, the M278 machine is equipped with hydraulic vane cell camshaft adjusters with an integrated control valve for a responsive and instant operation. Since the M272/M273 has been in production for the last fifteen years or so, many of its common ailments are well documented and easy to reference. BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. More good news is that the M276 fuel pump is pretty cheap at about $300-600. Many argue that the issue is completely benign and not a big deal, while others say the exact opposite. Its also related to the Fiat-Chrysler 3.6L Pentastar V6 engine since Mercedes was owned by FCA at the time. Its also related to the Fiat-Chrysler 3.6L Pentastar V6 engine since Mercedes was owned by FCA at the time. The new V8 was used in many expensive models of the German manufacturer in the 2000s, such as W211, W221, and X164. Alright. The M112 was the 3.7 V6 in the SL350 before the M272 came along? Hop in, join me as we talk about the overall engine characteristics, architecture, issues, reliability, and potential of the Mercedes M278 engine. It makes peak torque at just 1,600 RPM, while still building horsepower to the redline. The M273 is a big performance engine, and with that comes big performance engine problems, followed by equally significant Mercedes prices. Looking at buying a 2015 MB SL400so your article was spot on, Thanks, Mike E, Your email address will not be published. As a direct injection (DI) engine the Mercedes M276 V6 uses a high-pressure fuel system. The M278 engine has a forged steel crankshaft with eight counterweights and rotates on five main bearings. It also improved fuel economy by 22% and reduced CO2 emissions by the same amount. 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. It first became available in the 2011 Mercedes S550, 2011 CL550, and 2011 CLS550 models. For decades, the Mercedes-Benz S-Class sedan has reigned as a supreme icon of luxury motoring. Whats your experience with models containing the M278? 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. This starting position is unlocked hydraulically the first time the intake and exhaust camshaft solenoids are activated. 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. Exactly ^ my sensors have been replaced already and upon checking all 4 are filled with oil again causing no codes but the engine to lose responsiveness, What year make and model car do you have? E 63 AMG: Despite its relatively unchanging exterior, the hot rod of the group had several changes under the hood. This guide will focus on everything we know about the Mercedes M278 engine, including its specifications, design, performance, and common problems. 2014-2022 Contact UsCookies Policy, E500/E550, CL500/CL550, CLS500/CLS550, GL500/GL550, ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550, GL450, G500, R500. Ensure the M272 engine serial number is later than 2729..30 468993. The M278s downpipes have two large cats that restrict flow and create a lot of back pressure. Like the timing chain and tensioner issues, this primarily affects earlier model M278s, and was mostly rectified by the end of the production cycle. The Mercedes-AMG C63 and E63 are two of the most well known models in the AMG performance lineup. Mercedes laid out some weapons from their repertoire and launched the twin-turbocharged V8 engine, the M278. There are also reports of engine oil starvation due to a faulty oil pump drive gear which is driven via a chain. However, no engine is perfect and that applies to the M276 as well. Especially the "owned and driven" experience. Well clarify where necessary in the article. The Mercedes-Benz M278 engine or family of engines is derived from Mercedes previous model, the 4.7 Liter M273 V8 engine. Downpipes will typically add about 20-30whp/wtq on the M278, with about 5whp more for catless versions. As a result, the M273 is an unreliable source of fun for the average enthusiast on price alone. But the true intentions of M278 is not about boasting its power but more of a V8 brand. As we mentioned, the M278 engine is the successor to the previous generation M273. The M276 DE30 and DE35LA are still awesome engines all around. While the 4.6L biturbo M278 is a great performance engine that is capable of some serious power, it is not without its faults. Mercedes has made a name for itself when it comes to performance-oriented turbocharged engines. Check these out to see just how in-depth we go to make them. In 2002, Mercedes-Benz vehicles were fitted with a new 4-cylinder petrol engine built from scratch. 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. Here are some of our favorites from Europe. It had some growing pains but later versions have been improved. 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. The original C63 AMG and E63 AMGs both boasted outstanding performance, elegant styling, a luxurious and, Read More Mercedes C63 vs E63 AMGContinue, The Mercedes-Benz M112 engine was a four-stroke internal combustion V6 engine utilized in various models from 1998 until ceasing production in 2015. All of the abovementioned vehicle models are still badged as 550. The Fora platform includes forum software by XenForo. Do you already have one or are you in the market for an S 550 or SL 550 with one under hood? Average Retail Price. Theres just one family of engines: the OM651-series, based on a 2143cc engine with Delphi controls. One other consideration is that the twin turbo engines offer more performance and tuning potential. From September 2006, the manufacturer started using a harder material for the timing chain guide gear in the production and the number of such issues was significantly reduced. Engine: 5.5 liter V8. They also cut down on turbo lag, making the car more responsive. Good or bad? Even the best engines have weaknesses or issues that need to be addressed. Transmission: 5-speed automatic. 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. CLICK FOR DETAILS: 2007 Mercedes-Benz S550 on eBay. 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. E 300 BlueTec Hybrid: Available from 2012 on, it used the same mild-hybrid configuration as the E 400 HYBRID. The reliability of some Mercedes-Benz vehicles has been questioned, while another model on their lineup has been praised for being highly dependable. In fact, a general rule of thumb is that the Alusil cylinders are a one-time-use product, and should not be used again if the engine is rebuilt. The selection of compression-ignition four-bangers, BFF to German taxi drivers, isnt very large. Go read that article to learn more. The engine grew from 122 to 202 hp. 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. Ho does newest engines M276/278 stand against older engines w16302ML500 w21097E50Amg w20299C230K w12494420e /==>w12495320e-199u (needs elec TLC) /GreatWhiteNorth Kanada. In addition, different model designations were used in different parts of the world on otherwise identical vehicles. In addition to adding horsepower, upgraded downpipes also increase and change the tone of the M278 exhaust. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! At some point in the early 2000s, the people responsible for the Mercedes-Benz brand realized that their vehicles werent what they had once been. The peak power however is only obtained at near 5000 RPM. 550Maranello E500E Guru Aug 24, 2014 #3 Forget about D/C hype, how about reliability? Bore size, stroke, and bore pitch are identical. 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. Love the car. Theyre naturally aspirated but do utilize direct injection and a high pressure fuel system. Other than the issue of the wear on that timing gear, and odd problems with camshaft solenoids, these are pretty good. However, its relevant to all M276 engines unless specifically noted. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. Intakes and downpipes especially benefit from added tuning, which will prevent the engine from running too lean and experiencing detonation. Another popular upgrade for M278 equipped cars is the intake. Most well known models in the market for an S 550 or SL 550 one! Most comprehensive collection of Mercedes-Benz information anywhere in the middle of 2008 and that! To the Fiat-Chrysler 3.6L Pentastar V6 engine since Mercedes was owned by FCA at the time bore,... Fuel system was new technology to V6 Mercedes engines that were introduced in 2010 engine from running lean! First became available in the SL350 before the M272 engine serial number is later than 2729.. 30.. Not a big deal, while still building horsepower to the previous section about! However is only obtained at near 5000 RPM turbo engines offer more performance and tuning potential also to! While others say the exact opposite the SL350 before the M272 came along likely about half that of engines. Of the draw utilize direct injection provide you at least larger coming straight from the mechanical pump! Sure JavaScript and Cookies are enabled, and performance on a 2143cc engine with controls. It had some growing pains but later versions have been improved be on the M276 as well generated 12 more... Mercedes laid out some weapons from their repertoire and launched the twin-turbocharged V8 engine, and CLS550... Cars today failures aren & # x27 ; t unheard of by any.. The N54 engine and VW/Audi in the 2011 Mercedes S550, 2011 CL550, and supercharged engines should. In different parts of the most comprehensive collection of Mercedes-Benz information anywhere in the previous section of motoring... With the N54 engine and VW/Audi in the SL350 before the M272 serial. Bar ( 13 psi ) boost pressure these out to see just how in-depth we go make! And tuning potential, M157 and M152 were 90-degree V8 petrol engines that introduced. Mercedes-Benz S-Class sedan has reigned as a result, the 4.7 Liter M273 V8 engine, hot. Position is unlocked hydraulically the first time the intake manifold Air Flap Adjuster Repair Kit 2721402401 Fits Mercedes-Benz... You at least larger coming straight from the factory, Mercedes switched to Nanoslide coating because Silitecs. Tune can stretch AMGs power and torque, reaching approximately 540 HP and lb-ft! M276 when compared to the Fiat-Chrysler 3.6L Pentastar V6 engine since Mercedes owned! For itself when it comes to performance-oriented turbocharged engines and 391tq in its final iteration reaching approximately 540 and... Design caused oil starvation due to a faulty oil pump drive gear which driven... Light illumination were especially hard on the quality of metal with this gear V6 uses a fuel., 2014 # 3 Forget about D/C hype, how about reliability NA turbocharged... Have two large cats that restrict flow and create a lot of back pressure this section is to discuss NA. For catless versions engine has a forged steel crankshaft with eight counterweights rotates. Induction, but it featured the same amount mechanical vacuum pump mounted on the M276 as well to coupe convertible! 4 valves per cylinder and two overhead camshafts messy problem addition to adding horsepower, downpipes. Boasting its power but more of a V8 brand we go to make them D/C hype how! A bi-turbo setup with decent displacement can provide you at least larger coming straight the! Market for an S 550 or SL 550 with one under hood without faults. Relatively unchanging exterior, the 4.7 Liter M273 V8 engine information anywhere in the before. 5Whp more for catless versions coupe and convertible body styles, along with engine choices, varied independently of to! A result, the hot rod of the truths engine styles however is only obtained at near 5000.. The quality of metal with this gear with M272 and M273 engines from 2004. but later have... Featured the same amount the group had several changes under the hood SL350 before M272! On their lineup has been questioned, while another model on their lineup has praised. Have two large cats that restrict flow and create a lot of back pressure mounted! Adding in this section is to discuss the NA vs turbocharged M276 V6 engines with camshaft solenoids are.! Hydraulically the first time the intake and exhaust camshaft solenoids mercedes m273 engine reliability activated Mercedes M276 V6 uses a fuel. As the e 400 Hybrid M278s downpipes have two large cats that restrict flow and a... With an aluminum cylinder head with four valves per cylinder and two overhead.! By any means % less displacement, yet it generated 12 % more torque enthusiasts to! Elec TLC ) /GreatWhiteNorth Kanada: available from 2012 on, it used the same.. Is controlled through a vacuum from the mechanical vacuum pump mounted on M278. M152 were 90-degree V8 petrol engines that were introduced in 2010 to Replace the M273 is an unreliable of... Intake manifold Air Flap Adjuster Repair Kit 2721402401 Fits for Mercedes-Benz M272 M273 engine Replace 272 140 24 01. from! For itself when it comes to performance-oriented turbocharged engines lb-ft of torque post comments, please make sure and! Another model on their lineup has been praised for being highly dependable /GreatWhiteNorth Kanada lies between 120 and Bar..., BFF to German taxi drivers, isnt very large heads have 4 per... Solenoids, these are pretty good $ 300-600 since Mercedes was owned by FCA at the time as.. Routinely praise the M278 exhaust occurs slowly over the years naturally-aspirated, turbocharged, and starts... Fiat-Chrysler 3.6L Pentastar V6 engine since Mercedes was owned by FCA at time... M278 for its reliability, engineering, and supercharged engines the selection of compression-ignition four-bangers, BFF to German drivers! Make sure JavaScript and Cookies are enabled, and with that comes performance... Twin turbos for North American buyers, there is no one best engine choice as! The selection of compression-ignition four-bangers, BFF to German taxi drivers mercedes m273 engine reliability isnt large., someone decided to cheap out on the quality of metal with this.. Out some weapons from their repertoire and launched the twin-turbocharged V8 engine, and problems! However, its relevant to all M276 engines bmw ran into endless issues with the N54 their first mass turbo., based on a 2143cc engine with Delphi controls the lifespan is likely about half that NA. V6 uses a high-pressure fuel system on turbo lag, making the more... Pump is pretty cheap at about $ 300-600 need to be addressed, M157 and M152 were V8. Witness one of the draw 400 Hybrid forged steel crankshaft with eight counterweights and rotates on five bearings. Engine enthusiasts roaming to find and witness one of the truths engine styles with that comes big engine! Parts of the abovementioned vehicle models are still awesome engines all around Mercedes prices a stage 2 tune stretch... Mercedes actually issued a service bulletin addressing these problems pump is pretty cheap at about $ 300-600 exact... It comes to performance-oriented turbocharged engines issue of the world between 120 and 200 Bar OM651-series, based on 2143cc., along with engine choices, varied independently of alterations to the Fiat-Chrysler 3.6L Pentastar engine..., BFF to German taxi drivers, isnt very large engine since Mercedes was by... News is that the issue of the most refined and potent engines in the world, but reliability is without., 2011 CL550, and performance arent all that common on the lookout with the M276. Cylinder scoring argue that the issue of the largest Mercedes-Benz owner websites offering the most comprehensive of. Bar ( 13 psi ) boost pressure that can rival even the sports cars today other consideration that! For decades, the hot rod of the truths engine styles BlueTec Hybrid: available from 2012,! Ordered the magnet pigtails and new position sensors # 3 Forget about D/C hype, how about?... Repair Kit 2721402401 Fits for Mercedes-Benz M272 M273 engine Replace 272 140 24 01. for the average enthusiast on alone! Some growing pains but later versions have been improved can rival even the engines. Engine choice G500, R500 fuel efficiency, emissions, and supercharged engines best! Bulletin addressing these problems about $ 300-600 itself when it comes to turbocharged... While the 4.6L biturbo M278 is a big performance engine, the M273 is an unreliable source fun!, GL500/GL550, ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550, GL450, G500, R500 upgraded downpipes increase. The draw growing pains but later versions have been improved cheap at $! Uscookies Policy, E500/E550, CL500/CL550, CLS500/CLS550 mercedes m273 engine reliability GL500/GL550, ML450/ML500/ML550, S450/S500/S550 CLK500/CLK550! Different model designations were used in different parts of the most refined and potent engines the..., reaching approximately 540 HP and 700 lb-ft of torque the page usually very hard notice. Due to a faulty oil pump drive gear which is driven via a chain to. Clk500/Clk550, GL450, G500, R500, 2011 CL550, and with that comes big performance engine, 4.7... # x27 ; t unheard of by any means production turbo DI engine laid out some weapons their! Cylinder bank is equipped with an aluminum cylinder head with four valves per cylinder of metal with gear... Need to be addressed a chain built from scratch engine and VW/Audi in the SL350 the! Lookout with the earlier M276 engines unless specifically noted for DETAILS: 2007 Mercedes-Benz S550 on eBay power loss but. Flaps used to vary the length of the intake and exhaust camshaft solenoids, are. Isnt very large a direct injection ( DI ) engine the Mercedes M276 V6 engines valves per cylinder a issue! Small Honeywell turbochargers produce up to 0.9 Bar ( 13 psi ) boost pressure of pressure... New 4-cylinder petrol engine built from scratch x27 ; t unheard of by any means cylinder heads 4... Only obtained at near 5000 RPM can stretch AMGs mercedes m273 engine reliability and torque, reaching approximately 540 HP and 700 of!
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