Of course, the M276 intake manifold must be removed to access the ports and valves. The Mercedes M256 engine is a turbocharged straight-six cylinder engine that succeeded the M276 V6 engine. However, there are some gems out there that won't break the bank. How do they compare to a masterpiece like the M113? From the factory, the M278 already makes 429-449hp on the performance models, but with some tuning and E85 you can easily see triple-digit gains. Mercedes has built more than a handful of sporty, luxurious vehicles with manual transmissions. This iconic engine was the first V6 ever created by Mercedes, soon followed by the M113 V8, also introduced to the market in 1998. Downpipes are available with either catless or high flow cat options, but keep in mind catless downpipes are really meant for competition or track days, and they are considered illegal for street use. Its also not a complicated repair for the DIY crowd, but labor can add in another chunk of money for the repair shop crowd. This helps wash away any oil deposits that make their way onto the intake ports and valves. Sign up for the latest automotive news and videosin short, everything for people who love cars. Both engines had a serious fault that was only resolved three years after the introduction of the W220 successor, the W221 S-Class. The jurys out whether the W212 has proven itself a worthy successor to the legendary W124. Hence, the wear of the guides. The engine is equipped with fracture-split, forged connecting rods and light-weight, low-friction aluminum pistons. The M278 improved upon the outgoing M273 in a variety of ways. 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. M272 V6 & M273 V8 engine - soft balance shaft gears. Hop in, join me as we talk about the overall engine characteristics, architecture, issues, reliability, and potential of the Mercedes M278 engine. The C55 AMG sports a 5.4-liter V-8 engine that provides 362-hp and 376 pound-feet of torque. Incredibly, even with the addition of biturbos, the M278 still retained the same 10.5:1 compression ratio of the outgoing naturally aspirated M273. Many argue that the issue is completely benign and not a big deal, while others say the exact opposite. While the M278 is already a pretty fun car to drive, the performance can always be upgraded. The M278 is based on a 4.7-liter version of the M273. 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? It has sodium filled exhaust valves for optimal heat reduction, and also uses a direct injection system like the M278. In Stock. Power remained unchanged. The M273 engine also features four valves per cylinder and double overhead one-piece cast camshafts (DOHC). I checked my 2014 SL550 about a week ago. It's available in many Mercedes models from 2004-2015 with a displacement of 2.5L, 3.0L, or 3.5L. Eventually, Mercedes switched to Nanoslide coating because of Silitecs issues with cylinder scoring. Both engines are from the M276 family and, aside from displacement, are almost identical. Mercedes-AMG also created a variant of the M157, the M152, a 5.5L naturally aspirated V8. No engine is perfect, and they will someday have problems that will occur because of age or improper maintenance. For me, it's comfort and luxury, not highperformance and reliability. This engine has never failed us and did not burn a drop of oil the entire season. The cylinder block of M278 is made from lightweight aluminum material. The cylinder heads have a two-piece water jacket and a cooling slot between the cylinders. The first Mercedes-Benz models . The crankcase ventilation is provided through a line between the impactor and the left air filter. VW had quite a few problems early on, too. Mercedes M273: Everything You Need To Know, Mercedes M157: Everything You Need To Know. For decades, the Mercedes-Benz S-Class sedan has reigned as a supreme icon of luxury motoring. This engine makes an impressive 342-362hp and 376-391 lb-ft of torque. Top Mercedes DIYs. There were naturally-aspirated, turbocharged, and supercharged engines. Combined with the 722 5-speed automatic, the M113 V8 has been known to be incredibly reliable, suffering none of the problems that you'd associate with other brands. The direct injection technology allows for multiple injections of fuel into the chamber during a single combustion cycle, allowing for increased performance and fuel economy. DE 35 engines are the original M276 and offer 3.5L in a 60 V6 layout. Performance models made between 429-449hp and 465tq, and peak torque was achieved at just 1,800 RPM. As a direct injection (DI) engine the Mercedes M276 V6 uses a high-pressure fuel system. This involves a heavy-duty shop vac and walnut media shells. The M273 was a naturally aspirated 5.5L V8 that produced 382hp and 391tq in its final iteration. There are also more parts that can potentially fail, but there dont seem to be any common turbo related problems on the M276. Average Retail Price. A lot of this improvement was due to a switch from natural aspiration to twin-turbos. Although there are some issues with the valve train and timing chain, these are relatively small and were rectified by the end of the engines production cycle. Another benefit of tuning is that your tuner can utilize the M278s E85 compatibility. Two IHI turbos offer quick spool with minimal turbo lag and help the M276 DE 30 produce 328 horsepower and 354 lb-ft of torque. Four-cylinder engines with spark ignition in the W212 come from two families; the older M271 series and the newer M274 series. 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. Ive ordered the magnet pigtails and new position sensors. The aluminum DOHC cylinder heads have 4 valves per cylinder. Or M272/273? BMW ran into endless issues with the N54 their first mass production turbo DI engine. However, no engine is perfect and that applies to the M276 as well. Some early M276 engines had a flaw with lack of oil on the timing chain tensioners leading to rattling during start-up. Inside the cylinder bore is cast-in Silitec cylinder liners. The new V8 was used in many expensive models of the German manufacturer in the 2000s, such as W211, W221, and X164. Mercedes also offers multiple variants of the M276 a 3.5L NA, 3.0L twin turbo, and 3.5L twin turbo. 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. The Mercedes-Benz M276 is a series of 3.0-liter and 3.5-liter gasoline V6 engines with direct fuel injection system. $39.99. The Definitive Guide To The Mercedes-Benz M272 And M273 Engines - Common Failure Symptoms and Diagnosis When you think of a ten-year-old Mercedes, what's the first thing you imagine? 35% Off Spare Parts. Sold by Merlibugo and ships from Amazon Fulfillment. This article is in reference to all of the engines in the M276 family. Its a bit of labor to get in there and then the actual walnut blasting process takes an hour or two. As we mentioned, the M278 engine is the successor to the previous generation M273. I think Ill go for a later model engine to try and avoid the rattle unless I can find one already rectified. This failure could cause a wrong positioning of the camshafts. Chandler is an automotive expert with over a decade of experience working on and modifying cars. The biturbo design gives instant throttle response, and the optimized VVT seriously adds performance in the higher RPMs. Some were available with all-wheel-drive. Even within the classes, some models are more reliable than others. Hes been repairing, upgrading, tuning, and writing about cars & engines for over a decade. This minimises the production line re-tooling since this type of V6 is effectively a shortened V8. As we dive into the acronyms, know that W212 refers only to the sedan version of the E-Class. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. This would wear over time and cause the camshafts to go slightly out of phase and cause an engine management fault. The M276 DE30 and DE35LA are still awesome engines all around. M273 Engine Serial No. The final issue with the M278 is the hydraulic cam adjusters. On top of the direct injection system are a standard and multi-spark ignition mode. CLICK FOR DETAILS: 2007 Mercedes-Benz S550 on eBay. The cooling system is also managed by ECU - a mechanical thermostat was replaced by a new electronically controlled thermostat for optimum control of engine temperature. 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-Benz M278 is a 4.6-liter V8 direct-injected bi-turbo engine introduced in 2010. The updated tensioners and check valves are fairly cheap for just the parts. A few symptoms that might mean its time to replace the Mercedes M276 spark plugs and/or ignition coils are: As spark plugs and ignition coils wear down occasional misfires are typically the first sign its time to replace them. Find many great new & used options and get the best deals for Timing Chain Kit Chain Tensioner Camshaft Adjuster For Mercedes M272 M273 AU at the best online prices at eBay! Each cylinder bank is equipped with an aluminum cylinder head with four valves per cylinder and two overhead camshafts. Two are naturally-aspirated and two were twin-turbocharged. The purpose of the increase in displacement is to run lower turbo boost. Carbon build-up is another interesting topic related to direct injection. Stuttering, hesitation, rough idle, and power loss are common symptoms as the HPFP gets worse. This machine is also referred to as the 4.7 Liter bi-turbo V8 engine designed for Mercedes-Benz vehicles. This effectively stops the oil from seeping in and causing issues. However, the fuel system underwent a massive change. 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. 27296630611845. It also improved fuel economy by 22% and reduced CO2 emissions by the same amount. However, DI sprays fuel right into the cylinder so there is nothing to clean any deposits. Unfortunately, the M273 engines have earned a reputation as one of the most problematic Mercedes V8 engines. Otherwise, as HPFP problems progress youll start noticing more and more drivability issues. More good news is that the M276 fuel pump is pretty cheap at about $300-600. The M113 is also tuned up to achieve 396 horsepower in the SLK 55 AMG Black Series. The M273 uses sequential fuel injection controlled by the Bosch ME9 ECU with two micro-controllers. I'm not sure of the year but mine is a '57 with engine no. Your email address will not be published. Check these out to see just how in-depth we go to make them. 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 peak power however is only obtained at near 5000 RPM. Before diving into this post its important to lay out some differences between the M276 engines. However, no engine is perfect and there arent any exceptions here. Its also related to the Fiat-Chrysler 3.6L Pentastar V6 engine since Mercedes was owned by FCA at the time. Mileage: 168,521 mi. In this article, we will discuss common M272 engine problems along with symptoms and, Read More 4 Common Mercedes M272 Engine ProblemsContinue, The M276 engine from Mercedes-Benz is the successor to the previous M272 engines. Ample amount of increase that can rival even the sports cars today. 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. 2739..30 088611 But.. the Internet is full of bogeymen stories, so be wary of believing that engines are doomed to die. The replacement for rattling timing chains was pretty simple. Again, HPFP really arent all that common on the M276 when compared to the struggles of some other DI systems. Introduced in 2004, it is based on the M112 V6 introduced in 1998. E 250 CDI: Available from 2009 on, the 2.1-liter biturbo made 195 hp and 369 lb-ft of torque at 1600 rpm. Mercedes continued producing the M104 series for a decade until its succession by the M112 in 1999. Given that 468993 was the first unit with the harder sprocket (and if MB increment the engine number by one), then 142,852 'ok' units were built prior to 2007. 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. Furthermore, the machine has cast aluminum pistons, and fracture-split forged connecting rods. The Mercedes M113 engine family made its debut in 1997. **We might refer to the different M276 engine variants (i.e M276 DE 30). 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