This machine is also referred to as the 4.7 Liter bi-turbo V8 engine designed for Mercedes-Benz vehicles. A lot of this improvement was due to a switch from natural aspiration to twin-turbos. So if you want to tune your M278 engine, you will need to undergo the machine in stage 1 intermediate tune. Engine systems are controlled by the MED17.7 engine control unite (ECU). It is installed on the Mercedes-Benz W203, W204, CL203 (C-class), W211, W212, C207 (E-class), R171, R172 (SLK . At the bottom, there is a two-piece die-cast aluminum oil pan. I cannot find cylinder liners/sleeves for this engine. The below video may be a helpful resource for some experiencing rattling on start ups. E 250 CDI: Available from 2009 on, the 2.1-liter biturbo made 195 hp and 369 lb-ft of torque at 1600 rpm. 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). For a V8 engine, it may seem so underwhelming by the numbers given by the M278 engine. It may not display this or other websites correctly. Or M272/273? To achieve even firing pulses throughout the 4-stroke 720-deg cycle, a 6-cylinder engine should produce a power stroke every 120-degrees. 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. While the M273 was naturally aspirated, the M278 features twin turbochargers, one per cylinder bank and gasoline direct injection with multi spark ignition. What is most reliable engine in US market ? Owns this car. 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. 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. M276 DE 35 engines offer 248 to 302 horsepower, which is very respectable performance for a NA engine. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); TuningPro is a blog dedicated to providing car enthusiasts with the best information around performance modifications, engine problems, general maintenance and repair, and tuning. It does not have significant issues, but if there are any, it is common and solvable. Cls 500 2007. 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. Maintain the Mercedes-Benz M276 engine well and it will likely reward you with a fun and reliable experience. Misfiring. Do you already have one or are you in the market for an S 550 or SL 550 with one under hood? Mercedes-Benz W204 (C300, C350, C63 AMG) Video Buyer's Guide: What You Need To Know Before Buying; How to Fix Common Mercedes-Benz Oil Leaks (M112, M113, M272, M273) The Most Common Issues Of The Mercedes-Benz AMG M156 Engine; The Definitive Guide To The Mercedes-Benz Airmatic Suspension System This iconic engine was the first V6 ever created by Mercedes, soon followed by the M113 V8, also introduced to the market in 1998. However, there are some gems out there that won't break the bank. The causes could range from a clogged fuel injector to blown head gaskets, or a mass airflow problem. Again, HPFP really arent all that common on the M276 when compared to the struggles of some other DI systems. Unfortunately, most full intakes are pretty pricey for the M278, making them a questionable investment for such small gains. Get it as soon . The S-Class is usually . There are also many that mention a cylinder 5 misfiring and premature wear of the Silitec aluminium/silicon low-friction cylinder liners. 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? The GL-Class also features the GL450 trim that carries a detuned 4.7 Liter version making 362 HP and 406 lb-ft of torque. Insanity. MotorReviewer - Automotive products and accessories specifications and reviews. It requires a major overhaul. The M272 utilises a 90-deg block in common with the V8 engines. Easy-peasy until you get to the AMG versions with special packages. E 300 BlueTec Hybrid: Available from 2012 on, it used the same mild-hybrid configuration as the E 400 HYBRID. This guide will focus on everything we know about the Mercedes M278 engine, including its specifications, design, performance, and common problems. HPFP failures aren't unheard of by any means. Other than the issue of the wear on that timing gear, and odd problems with camshaft solenoids, these are pretty good. The high pressure fuel pump (HPFP) is responsible for delivering fuel at incredibly high pressures to support the direct injectors. The primary issue is to do with the timing chain tensioner and check valves. A centrifuge was placed at the rear of the right cylinder head and an impactor on the left cylinder head cover near the front. 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. On top of the direct injection system are a standard and multi-spark ignition mode. Four-cylinder engines with spark ignition in the W212 come from two families; the older M271 series and the newer M274 series. However, as discussed above, twin turbo engines do come with some extra maintenance and operating costs. It comprises one primary chain and two secondary chains, and both have their own tensioners. It is not very well known for its reliability, as many drivers reported extensive issues with timing components, the intake manifold, and oil leaks. 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. Online Automotive Ltd HOME About Us Shipping Returns Feedback Bookmark Seller 325555132509 There are also reports of engine oil starvation due to a faulty oil pump drive gear which is driven via a chain. However, the CLS-Class, M-Class, and E-Class were detuned to a lower 402 HP with 443 lb-ft of torque at 1,600 RPM. Inside an aluminum crankcase, there is a forged steel crankshaft secured by reinforced bearing caps. Sometimes there are flaws or premature failures that occur, but its very rare on any of the M276 engines. Power varies from 275 to 574 horsepower impressive numbers for its era. Required fields are marked *. Ho does newest engines M276/278 stand against older engines w16302ML500 w21097E50Amg w20299C230K w12494420e /==>w12495320e-199u (needs elec TLC) /GreatWhiteNorth Kanada. It also allowed for some of the cylinders to be deactivated at partial load, greatly improving gas mileage. The only modification we made was the single-stage composite manifold offered in the SLK. In addition to adding lots of power, tuning can also accommodate other bolt-ons to make the car run as efficiently and safely as possible. Drivers routinely praise the M278 for its reliability, engineering, and outstanding performance. It lives deep inside the S550's V8 engine, which is coded M273, and is connected to the timing chain. First, it has 15% less displacement, yet it generated 12% more horsepower and 32% more torque. Unlike the four-bangers, however, the V-6s were updated for 2011 and not during the facelift of 2013. Bore size, stroke, and bore pitch are identical. The most reliable W221 is the 2008-2011 S550, equipped with the naturally aspired M273 engine and 7-speed automatic transmission. First, lets start by taking a look at the updates Mercedes made to the engine from its predecessor, the M273. The 5.5L and 4.7L V8s are completely aluminum engines. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 27296630611845. Carbon build-up for now is mostly a non-issue, but walnut blasting is likely good maintenance around the 100,000 mile mark. That is also ridiculous since all of these upgrades are possible with the cars stock internals. Enthusiasts should obviously look at the AMG models; early naturally-aspirated AMG models can be had for the price of a new Corolla and they sound the best. Also, there were some problems with premature valve guide wear, but later engines don't have that issue. Spark plugs and ignition coils are standard maintenance on almost any engine including the M276. The honing process destroys the etching layer, and renders them useless. It seems more and more cases pop up as some of the early engine keep aging. Model: S550. Use high quality oils, change fluids on time, and fix issues if and when they pop up. 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. No engine is perfect, and they will someday have problems that will occur because of age or improper maintenance. 1) Mercedes-Benz M276 HPFP Issues. However, the fuel system underwent a massive change. The M273 was a naturally aspirated 5.5L V8 that produced 382hp and 391tq in its final iteration. Maintain the M276 well and its likely to be an excellent, reliable engine that you can enjoy for years to come. Here are some of the coolest concepts that have fallen through the cracks. The connecting rods, crankshaft, and valves are all forged, while the hyper-eutectic pistons, crankcase, and cylinder heads are all cast aluminum. A well-maintained Mercedes-Benz W221 S-Class, especially the S550 4Matic, can be a pleasure to drive and, overall, is a very reliable vehicle. A 228-hp, 398 lb-ft version become the standard from 20102013. They came in 1.6-liter, 1.8-liter, and 2.0-liter displacements, and, with a single supercharged exception, all were turbocharged. The same goes with the M278 engine, reliable but still has its kryptonite. The engine block of 4.7L M273 46 KE has 92.9 mm (3.66 in) bores and an 86.0 mm (3.39 in) stroke. E 63 AMG: Despite its relatively unchanging exterior, the hot rod of the group had several changes under the hood. This leads to the rattling sounds until oil pressure builds up enough. This system enhances the air for a greater density for power production, reduces the formation of nitrogen oxides, and mitigates the tendency for uncontrolled detonation. Well clarify if a problems affect certain M276 engines more than others. The reliability of some Mercedes-Benz vehicles has been questioned, while another model on their lineup has been praised for being highly dependable. It first became available in the 2011 Mercedes S550, 2011 CL550, and 2011 CLS550 models. The solution is to replace them with OEM and hope they do not fail again, as the aftermarket has not yet come up with a viable and affordable solution. 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. Reliability 4.8; Write a review. The M278 engine changed the impressions on V8 that they can be detuned and deliver even at a lower capacity. Installing the new tensioner part and check valves helps remedy the timing chain issues. Engine: 5.5 liter V8. Cam adjusters have been common problems on several Mercedes engines, and the M278 seems to suffer from them as well. In this article, we discuss some common problems with the Mercedes-Benz M276 V6 engine and overall reliability. Which one you pick is up to you. Wasn't the M113 a V8? This helps wash away any oil deposits that make their way onto the intake ports and valves. Those same engines ran into excess carbon build-up as early as 40,000 to 60,000 miles. Previously, we have looked at the 5 most common problems with the M157, so make sure to check that out when you get a chance. Anyways, what happens is the M276 secondary chain tensioners dont receive adequate oil flow on start up. This has happened to a lot of people. Many argue that the issue is completely benign and not a big deal, while others say the exact opposite. M272/M273 Balance shaft replacement. I had mine 2016 S212 250 Bluetech (204hp) 9gtronic for two years now. With traditional port injection (PI) fuel is sprayed into the intake ports. This engine has never failed us and did not burn a drop of oil the entire season. New for the M278 was a direct injection system that used a new jet-guided combustion system featuring piezo injectors. 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. "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. Mercedes also offers multiple variants of the M276 a 3.5L NA, 3.0L twin turbo, and 3.5L twin turbo. Curiously it never occurred on the first start of the day. I have 130,000 km on the car. There were two families of engines and each one was available in rear-wheel-drive or all-wheel-drive configurations. Rating . Even with those, M278 is still a solid, reliable engine with the power and a decent amount of torque. In 2010, as a replacement for the M273 engines, Daimler AG introduced the 4.6-liter V8 twin-turbocharged Mercedes-Benz M278 engine. However, the challenge here is that the engine has a pretty complicated timing chain drive arrangement. This is typical for engines manufactured before June 2008. The M273 series was released in 2005 as a successor for the M113 engine. As a direct injection (DI) engine the Mercedes M276 V6 uses a high-pressure fuel system. Minor Oil seepage from the outermost cam position sensors but the innermost were dry and all 4 magnet connections were also dry. In both cases, that will lead to actuator cam breakage. The, Read More Mercedes C43 vs C63 AMGContinue. What is the difference between a Ford M273 and M273 55? Some reliability simply comes down to luck of the draw. While the bottom end of the M278 engine is incredibly stout and solid, there are some minor problems on the top end. That should cover everything you need to make a decision whether or not you want to get into one of the many awesome Mercedes with the M272/M273. Mercedes also offers multiple variants of the M276 a 3.5L NA, 3.0L twin turbo, and 3.5L twin turbo. Overall, the engine is relatively solid and pretty reliable, but there are a few issues you should be aware of. 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