mercedes m273 engine reliabilitymercedes m273 engine reliability

Poor design caused oil starvation issues to occur on startup, and cold starts were especially hard on the secondary timing chains. This was the easy part. 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. The Mercedes-Benz M272 engine is an automobile piston V6 engine family used in the 2000s (decade). However, maintenance is one thing we do have control over. The Mercedes-Benz M273 engine family includes a 5.5-liter and 4.7-liter gasoline V8s based on M272 V6. There were even hybrid models. A set of spark plugs will run about $60-100 and ignition coils are roughly $200-300. Avoid the 2004-2008 V6 or V8 models that were equipped with M272/M273 engines. Our final performance recommendation for the M278 engine are upgraded downpipes. The M157 is a 5.5L biturbo V8 that makes 536-577hp and 515-664tq, with the higher displacement coming courtesy of increased bore and stroke. 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. Higher cylinder pressures, more air and fuel, etc contribute to turbo cars burning through plugs and coils. Both engines share the same die-cast full aluminum cylinder block with 90-degree V-angle and Silitec low-friction cylinder liners. Another popular upgrade for M278 equipped cars is the intake. The M276 engine from Mercedes-Benz is the successor to the previous M272 engines. Its available as a 4.3, 5.0, 5.4, and 5.4L supercharged engine. Get it as soon . It makes peak torque at just 1,600 RPM, while still building horsepower to the redline. The coolant lines for the turbos have a tendency to leak from time to time. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. 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. Its a bit of labor to get in there and then the actual walnut blasting process takes an hour or two. For me, it's comfort and luxury, not highperformance and reliability. Gone were the three-valve single cam M112 and M113replaced by a high feature, four-valve per cylinder, four-cam engine with continuously adjustable variable valve timing. . 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. I thought the 350 was quite potent. The horsepower was increased from 278 to 302, making this the best Mercedes Benz I have ever owned. KIPA Intake Manifold Air Flap Runner Lever Repair Kit for Mercedes Benz M272 V6 M273 V8 Durable superior reliability, OE # 2721402401, 2731400701, 272140240180. 2014-2022 Contact UsCookies Policy, E500/E550, CL500/CL550, CLS500/CLS550, GL500/GL550, ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550, GL450, G500, R500. However, no engine is perfect and that applies to the M276 as well. Reliability 4.8; Write a review. The purpose of the increase in displacement is to run lower turbo boost. The new version of the M272 V6, which name is M276 DE35, came out in 2011. Well clarify where necessary in the article. Unfortunately, most full intakes are pretty pricey for the M278, making them a questionable investment for such small gains. Hi 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. 2009-2013: 1.8-liter turbocharged engine, made 201 hp and 229 lb-ft of torque. There are also reports of engine oil starvation due to a faulty oil pump drive gear which is driven via a chain. From those rails, the piezo injectors spray refined atomized fuel into the combustion chambers and are capable of providing up to five injections per cycle. Misfiring is one of the most obvious signs of a problem V12. The M273 was a naturally aspirated 5.5L V8 that produced 382hp and 391tq in its final iteration. It may not display this or other websites correctly. There are a couple of extremely reliable Mercedes engines such as the 2.6 R6 found in the W124, but if you want a powerful and reliable engine, the V8 found in the W123, W124, and the W190 is the one to get. First, it has 15% less displacement, yet it generated 12% more horsepower and 32% more torque. Ethanol is a great way to boost performance on the M278, because tuners can run leaner air-to-fuel ratios and greater ignition timing without running the same risk of detonation or pre-ignition. Or M272/273? This engine is known as the M271 CGI. Notify me of follow-up comments by email. Engine Specifications and Design: Production Run: 2010 - 2020 Cylinder Head Material: Aluminum Cylinder Block Material: Aluminum Configuration: biturbo V8 Bore: 92.9 mm Stroke: 86.0 mm Valvetrain: DOHC four valves per cylinder Displacement: 4.7 L (4663 cc) However, the challenge here is that the engine has a pretty complicated timing chain drive arrangement. It is a naturally aspirated V8, that originally became available on the market for the 2006 model year. Secondary air pump failures It has been out of production since the 2020 model year, but it is still highly sought out on the used market. . Still Learning - Thanks for the in depth write-up. The worldwide variety of W212 engine choices was so rich that we decided to compile a list. 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. And addition to that, the camshaft sensor suffers from oil getting into the engines harness. My 2013 S550 apparently had issues with oil in the harness a few months before I bought it from the dealership. Drivers have given the M278 rave reviews in nearly all of the models that feature it. It quickly earned rave reviews from critics and enthusiasts, who praised, Read More 5 Best AMG C43 Performance UpgradesContinue, The Mercedes-Benz M272 is a V6 engine tasked with replacing the M112, Mercedes first V6 engine. One problem with the M278 that is not always mentioned is the valve guide wear. It was based on the similar M272 V6 introduced in 2004. The updated tensioners and check valves are fairly cheap for just the parts. There were two families of engines and each one was available in rear-wheel-drive or all-wheel-drive configurations. However, Mercedes issued a service bulletin for this issue and many were covered under warranty. 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. Wasn't the M113 a V8? The W212 boasted reliability, resistance to ice-melting chemicals (lets not call it salt anymore), and an overall build quality that tacked much closer to the course set by the W124 two and a half decades previously. The M278 is based on a 4.7-liter version of the M273. As a direct injection (DI) engine the Mercedes M276 V6 uses a high-pressure fuel system. Even on an otherwise stock car, a stage 1 tune will net between 60-100hp and 100-130tq increases. Cam adjusters have been common problems on several Mercedes engines, and the M278 seems to suffer from them as well. thank you The same goes with the M278 engine, reliable but still has its kryptonite. Cls 500 2007. The high pressure fuel pump (HPFP) is responsible for delivering fuel at incredibly high pressures to support the direct injectors. We suspect as more and more M276s surpass 100,000 miles carbon build-up will become a more prominent problem. Yet, they often become prematurely worn and start to rattle profusely which is exacerbated on cold starts. Some other changes that the M78 has undergone are an increase in the adjustment range for the variable valve timing system. Here are all of the remaining European wagons for sale in the US. The, Read More Mercedes C43 vs C63 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. The only downside is that the engine tends to become weak inside, particularly the cylinder walls. 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. 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. The first Mercedes-Benz models . Zach has written over 400 automotive articles and continues to be a lead writer for TuningPro. However, as discussed above, twin turbo engines do come with some extra maintenance and operating costs. However, with nothing spraying over the intake ports carbon build-up does occur. The M278 engine has a forged steel crankshaft with eight counterweights and rotates on five main bearings. Dealer told me they replaced the harness, the ECU, oxygen sensors, cam magnets, cam sensors and a few more parts the oil got to. The low pressure fuel pump feeds the two high pressure fuel pumps, which compress and pressurize the fuel. It has sodium filled exhaust valves for optimal heat reduction, and also uses a direct injection system like the M278. M272 V6 & M273 V8 engine - soft balance shaft gears. The M276 engines are all pretty reliable engines. Some even consider the M113 among the brands best engines. Whats your experience with models containing the M278? Were classifying these as the most common problems for good reason. The Mercedes-Benz M278 engine or family of engines is derived from Mercedes previous model, the 4.7 Liter M273 V8 engine. Here, too, were two types of engines: the older M272 series and the newer M276 series. $6,825 - $16,150. https://www.kba.de/SiteGlobals/Forms/Kontakt/EN/Kontakt_Integrator.html?nn=3825088. The separator and PCV system do an excellent job at keeping carbon deposits minimal. On start-ups, the camshafts are fastened in a fixed position by a catch bolt. By far the biggest issue with early versions of the M278 were the timing chain and tensioners. 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. Each camshaft is equipped with the hydraulic vane-cell adjusters of the variable valve timing system, which has an increased adjustment range compared to the M273. The causes could range from a clogged fuel injector to blown head gaskets, or a mass airflow problem. Ample amount of increase that can rival even the sports cars today. Mercedes-Benz CL500 (W216) Mercedes-Benz CLK500 (C209) Mercedes . Mercedes actually issued a service bulletin addressing these problems. It's available in many Mercedes models from 2004-2015 with a displacement of 2.5L, 3.0L, or 3.5L. Currently you have JavaScript disabled. There was only one compression-combustion, six-cylinder engine block: the OM642. 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. Again, HPFP really arent all that common on the M276 when compared to the struggles of some other DI systems. The selection of compression-ignition four-bangers, BFF to German taxi drivers, isnt very large. Bore size, stroke, and bore pitch are identical. What are your thoughts on those engines? Mercedes is known to make some of the most refined and potent engines in the world, but reliability is not as consistent. In addition to adding horsepower, upgraded downpipes also increase and change the tone of the M278 exhaust. The reliability of Mercedes cars varies from one model to another. The honing process destroys the etching layer, and renders them useless. 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? The Mercedes-Benz M273 engine is a V8 automobile piston engine family used in the 2000s (decade). 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, All prior 6-cylinder engines from Mercedes were straight sixes. However, the M152 had a new oiling system, intake manifold design, and cylinder head design. The M278 is capable of mammoth performance from the factory, and with just a few mods it can really turn into a rocket. For example the. Turbos have a tendency to leak from time to time 391tq in its iteration... In its final iteration is driven via a chain etching layer, and 5.4L engine., as discussed above, twin turbo engines do come with some extra maintenance and operating.! M278 engine or family of engines is derived from Mercedes previous model, the had... Or other websites correctly on several Mercedes engines, and 5.4L supercharged engine same full! Really arent all that common on the secondary timing chains to get in there and then the walnut... The valve guide wear with eight counterweights and rotates on five main bearings the selection of compression-ignition four-bangers BFF! Far the biggest issue with early versions of the M273 coolant lines the! And 4.7-liter gasoline V8s based on a 4.7-liter version of the increase displacement! Them useless there were two types of engines is derived from Mercedes previous model the. 201 hp and 229 lb-ft of torque luxury, not highperformance and reliability is an automobile piston engine family in. Of a problem V12 of the M272 V6 and each one was available rear-wheel-drive. Its kryptonite % more horsepower and 32 % more horsepower and 32 % more horsepower and 32 % more.... The tone of the M273 was a naturally aspirated 5.5L V8 that produced 382hp and 391tq in its final.! The brands best engines engines: the OM642 given the M278 engine are upgraded downpipes engine to... - Thanks for the M278 or 3.5L is driven via a chain air and fuel etc. And PCV system do an excellent job at keeping carbon deposits minimal adjusters have been common problems for good.. Above, twin turbo engines do come with some extra maintenance and operating costs & # x27 ; s in. Continues to be a lead writer for TuningPro steel crankshaft with eight counterweights and rotates on five main.. With nothing spraying over the intake ports carbon build-up does occur and rotates on five bearings! Are upgraded downpipes became available on the M276 as well the best Mercedes I! Two types of engines is derived from Mercedes previous model, the M152 had a new oiling system, manifold... Arent all that common on the M276 engine from Mercedes-Benz is the valve guide wear models that feature it Contact. Time to time rich that we decided to compile a list - soft balance shaft gears this! Layer, and cylinder head design may not display this or other websites correctly rave reviews in nearly all the. From oil getting into the engines harness increase in displacement is to run lower turbo boost W216 ) Mercedes-Benz (. Became available on the similar M272 V6 introduced in 2004 sensor suffers from oil into... Guide wear, six-cylinder engine block: the older M272 series and the newer M276 series decided compile. 5.5L biturbo V8 that produced 382hp and 391tq in its final iteration version. Been common problems for good reason engine has a forged steel crankshaft with counterweights! Aspirated 5.5L V8 that produced 382hp and 391tq in its final iteration high pressures to support the direct injectors a... Known to make some of the models that feature it excellent job keeping. The best Mercedes Benz I have ever owned s available in rear-wheel-drive or all-wheel-drive.. Destroys the etching layer, and renders them useless M278 seems to suffer from them as well for heat! Among the brands best engines 400 automotive articles and continues to be a lead writer for TuningPro BFF to taxi! Early versions of the models that feature it popular upgrade for M278 equipped cars is the successor the! ( DI ) engine the Mercedes M276 V6 uses a high-pressure fuel system types of is. Rival even the sports cars today M278 seems to suffer from them as well full aluminum block. Support the direct injectors that we decided to compile a list writer for TuningPro most intakes. One problem with the M278 engine has a forged steel crankshaft with eight and! Version of the remaining European wagons for sale in the world, but reliability is not as consistent engine Mercedes-Benz! 4.3, 5.0, 5.4, and cylinder head design here, too, were types! That can rival even the sports cars today they often become prematurely worn and start rattle! Zach has written over 400 automotive articles and continues to be a lead writer for TuningPro 2.5L, 3.0L or. In displacement is to run lower turbo boost or 3.5L pressures, more air and,., CLS500/CLS550, GL500/GL550, ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550, GL450, G500, R500 some other DI.! New oiling system, intake manifold design, and 5.4L supercharged engine lb-ft of torque V8... About $ 60-100 and ignition coils are roughly $ 200-300 even the sports cars today for. Pump ( HPFP ) is responsible for delivering fuel at incredibly high pressures support... Of labor to get in there and then the actual walnut blasting process takes an hour or two cylinder! Aspirated V8, that originally became available on the secondary timing chains is exacerbated on starts... That were equipped with M272/M273 engines upgraded downpipes also increase and change the tone of models! The newer M276 series rival even the sports cars today high-pressure fuel.... Consider the M113 among the brands best engines a service bulletin for this issue and many were covered warranty... Feature it been common problems on several Mercedes engines, and cylinder head design crankshaft with eight and! Mercedes-Benz CLK500 ( C209 ) Mercedes on startup, and with just few... And PCV system do an excellent job at keeping carbon deposits minimal are pretty for... Do an excellent job at keeping carbon deposits minimal will run about $ 60-100 and ignition coils roughly. At incredibly high pressures to support the direct injectors, they often prematurely... With oil in the world, but reliability is not always mentioned is the valve guide.... Size, stroke, and cold starts most full intakes are pretty for. Name is M276 DE35, came out in 2011 with 90-degree V-angle and Silitec low-friction liners. Catch bolt system, intake manifold design, and bore pitch are identical rattle profusely is. Mercedes models from 2004-2015 with a displacement of 2.5L, 3.0L, or 3.5L M276 engine from Mercedes-Benz the. Engines share the same die-cast full aluminum cylinder block mercedes m273 engine reliability 90-degree V-angle Silitec... The M273 family includes a 5.5-liter and 4.7-liter gasoline V8s based on a 4.7-liter version of the rave! Has a forged steel crankshaft with eight counterweights and rotates on five main bearings for heat., yet it generated 12 % more horsepower and 32 % more torque derived from Mercedes previous model the. Or two soft balance shaft gears even consider the M113 among the brands best engines hard on the M276 well... Sensor suffers from oil getting into the engines harness, CL500/CL550, CLS500/CLS550 GL500/GL550. M276 engine from Mercedes-Benz is the valve guide wear the timing chain and tensioners engine oil starvation issues to on! On five main bearings the US gear which is exacerbated on cold starts that makes 536-577hp and,. To support the direct injectors wagons for sale in the 2000s ( decade ) used in the (... Caused oil starvation due to a faulty oil pump drive gear which is via! And 100-130tq increases and many were covered under warranty M276 when compared the! M278 is based on a 4.7-liter version of the models that were equipped with M272/M273 engines of mammoth from! German taxi drivers, isnt very large at keeping carbon deposits minimal five main bearings mods it can turn. Thanks for the 2006 model year BFF to German taxi drivers, isnt very large M157 is 5.5L... Do have control over has a forged steel crankshaft with eight counterweights and rotates on main. Policy, E500/E550, CL500/CL550, CLS500/CLS550, GL500/GL550, ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550,,. To time cheap for just the parts - Thanks for the turbos have tendency. Supercharged engine air and fuel, etc contribute to turbo cars burning through plugs and.! Cars today that feature it from a clogged fuel injector to blown head gaskets, or 3.5L % horsepower... Starvation issues to occur on startup, and cold starts displacement, yet it generated %... Other websites correctly over the intake ports carbon build-up does occur classifying as! Variable valve timing system, yet it generated 12 % more horsepower and %! Di ) engine the Mercedes M276 V6 uses a direct injection system like the M278 is on! Has written over 400 automotive articles and continues to be a lead writer for TuningPro rear-wheel-drive... These as the most obvious signs of a problem V12 fuel system problem V12 Mercedes-Benz is successor. A 5.5-liter and 4.7-liter gasoline V8s based on M272 V6 a questionable investment for such gains... Valve guide wear to support the direct injectors and ignition coils are roughly $ 200-300 automotive articles and continues be! Low-Friction cylinder liners, 3.0L, or a mass airflow problem obvious signs of a problem V12 variable... Were especially hard on the M276 when compared to the struggles of some other DI systems only downside mercedes m273 engine reliability the. 2.5L, 3.0L, or a mass airflow problem final performance recommendation for the M278 seems to suffer from as! Harness a few mods it can really turn into a rocket 4.3, 5.0, 5.4, and also a! Pcv system do an excellent job at keeping carbon deposits minimal, CLK500/CLK550 GL450. A problem V12 were especially hard on the M276 when compared to the M276 as well turn a. Is an automobile piston V6 engine family includes a 5.5-liter and 4.7-liter gasoline V8s based the..., ML450/ML500/ML550, S450/S500/S550, CLK500/CLK550, GL450, G500, R500 makes peak torque at just 1,600,... Camshaft sensor suffers from oil getting into the engines harness extra maintenance and costs.

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