Fitting big valve kits, carrying out port work and head flowing will also boost bhp, & more importantly will afford you an improved bhp increase on other tuning parts. Is that MB paper. It is your responsibility to check and verify any tip advice or other articles content with a qualified mechanic before undertaking work or following instructions. All of these engines have a straight-six configuration, except for the original Volkswagen VR6 adapted by the Vito van. Eventually, a short run of 75 turbocharged M104 engines was sold directly from the Mercedes dealership Hughes of Beaconsfield. The engine has aluminum cylinder heads with four valve per cylinder and two overhead camshafts (DOHC). It is the whole point to any car tuning job to force more fuel and air into the M104 engine. Throughout this guide, we will analyze some of the pros and cons related to the M104 series and its overall impact on the automotive market. For a better experience, please enable JavaScript in your browser before proceeding. Please share this page with your friends on : PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. Toyota initially reached out to Nissan for help, but Nissan was busy with the Fairlady, so Yamaha alone handled the project. The big stuff were just the battery, water pump, and alternator. .css-dhtls0{display:block;font-family:GlikoS,Georgia,Times,Serif;font-weight:400;margin-bottom:0;margin-top:0;-webkit-text-decoration:none;text-decoration:none;}@media (any-hover: hover){.css-dhtls0:hover{color:link-hover;}}@media(max-width: 48rem){.css-dhtls0{font-size:1.125rem;line-height:1.2;}}@media(min-width: 48rem){.css-dhtls0{font-size:1.25rem;line-height:1.2;}}@media(min-width: 61.25rem){.css-dhtls0{font-size:1.375rem;line-height:1.2;}}2024 Porsche Cayenne Gives You More of Everything, Polestar 4 Is a Fastback EV SUV with No Rear Glass, 2024 Lincoln Nautilus Shows Off 48.0-Inch Screen, Buick's 2024 Envista Is a Budget Crossover Coupe, 2026 Ford Mustang Raptor: Car Worth Waiting For, 2025 VW ID.7: More Power, Better Range Than ID.4, 2024 BMW i7 M70 Is a Swanky Luxobarge with 650 HP, Mercedes-Maybach EQS680 SUV: the Brand's First EV, Average New Car Still over $48K but Is Down a Bit, Take on Le Mans With Lego Technic's Peugeot 9X8, Here's Chevy Colorado ZR2 Bison Prototype Pickup. The naturally aspirated straight six! The cylinder head is the same as the E32 engine has - two overhead camshafts, variable valve timing system on the intake camshaft only. If you have a water leak, it's likely coming from the water pump. In conclusion, the Mercedes M104 engine does not have many blatant flaws. If the damage in the reservoir is minimal, it may still be fixed via a sealant, but if it's already serious, that component may have to be replaced and refilled with fluids. In addition, many drivers report problems with oil leaks and high oil consumption. Mercedes continued to gradually utilize the M104 engines in vastly different models listed below until the AMG conversions were produced. Once you've found the root of all your troubles, you can then decide whether you need to replace a part or simply seal the leak. The Mercedes M104 is a well-rounded and highly dependable engine. High oil consumption. Some of our members have had issues with flat spots or glitches after applying mods and upgrades or tuning, this is not usually related to this engines design, so instead see our article on diagnosing flat spots and problems after tuning which should help you get the bottom of this issue. Tuning the Mercedes M104 and best M104 performance parts. To avoid this problem, the AMG version of the M256 has an electrically driven supercharger to provide boost before the turbo spools up. You will also have full access to According to the specifications, the M104 series is made to travel 400,000 kilometers. Built on a cast iron block, the M104 was widely hailed for its reliability and its power. M110 & M123. Straight-6 (not including M104.900 VW VR6 version), 89.9mm x 73.5mm (2.8L), 88.5mm x 80.2 (3.0L), 89.9mm x 84mm (3.2L), 91.5mm x 84mm (3.4L), 91mm x 92.4mm (3.6L), 19972004W124 SsangYong Chairman H CM500S, Ticking or thumping sounds emitting from the engine bay, Steam or smoke emitting from the engine bay, Coolant leaks/Coolant puddles gathering underneath car, Dark/heavy smoke emitting from the exhaust. many of the various models that employ the M104 may be difficult to find components for. The motor is so reliable that Jaguar planned to make the cast iron blocks again. Thing is, call me stupid, but I once heard, that it produced up to 35kw (45hp) more than the 12 valve. I currently drive a 1994 C280 with 417,000 km on it. Be sure to keep up with our latest YouTube content and subscribe. The Mercedes M104 engine can be found in the following models below: The M104 engines were utilized in a total of 36 total models by five different automobile manufacturers, including Mercedes-Benz, Roewe, Heuliz, Status & Class, and SsangYong. The M104 engine had a cast iron block, an alloy cylinder head, cast pistons, double overhead camshafts (chain-driven), four valves per cylinder and hydraulic bucket tappets. It appeared in 1991. If it fails, the coolant will not be able to do its job and the engine will overheat. Save my name, email, and website in this browser for the next time I comment. Fast and reliable. 3. Produced from 2004 to 2015, it is among the most dependable engines, more reliable than its bigger sibling, the N54! When the engine is fitted with a turbo tuning mods are going to net you a larger power gain and most turbocharged engines are built using harder and stronger components. The M103 and the M104 on paper were designed to be 400,000+ mile engines, both. The Mercedes M112 E32 series is the engine that will be discussed today. The M278, and its V6 brother the M276, were the successors to the outgoing M272/3 engines. On most factory exhausts you should find that the flow rate is ok even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust. 992 (1992-onwards) analogue of the M104,991 with a 9.2 compression ratio, 220 horsepower at 5500 rpm, and 310 Nm of torque at 3750 rpm. The RB26DE is a 2.6-liter inline-six motor that churns out a massive 217 horsepower and 181 lb-ft of torque. And such a powerful motor can quickly and effortlessly restart the engine during idle-stop mode. 995 (19951997 onwards): 220 horsepower at 5500 revolutions per minute and 315 Nm of torque at 3850. Remaps allows a tuner to unlock the full potential of all the mods you've done to your M104. The narrower bore allows a reduction in the distance between bore centers from 106.0 to 90.0 mm, saving more than three inches overall. Replacing the radiator cap is a relatively simple process that can be done at home. The new engine, M256, goes back to the traditional inline layout with its inherent perfect primary and secondary balance, making it even smoother than a 60-degree V-6or a V-8, for that matter. It makes about 338 horsepower and 269 lb-ft of torque. Alternatively, add-ons / plugins in browsers, not just only AdBlock, but also others similar, too. However, not every engine is perfect in design. With proper maintenance and care, the Mercedes M104 engine can be extremely reliable with an impressively long lifespan. In addition, the main cooling fan can often fail overall; without a quick repair, this can lead to various other problems for the M104. Intake transmit the air during the suck phase from the filter and allow it to be drawn into the engine and mixed with fuel. and get all the new deets right in your inbox, Leaders in automotive prformancee and tuning guides, Please enable JavaScript in your browser to submit the form. The M104s do have a sensitivity to extremely cold climates. The inline design also greatly reduces the number of parts in the engine: one cylinder head instead of two, one camshaft drive instead of two, one exhaust manifold instead of two, one turbocharger instead of two, one catalyst instead of two, two camshafts instead of four, two cam-phaser mechanisms instead of four. Thats because there is less time for the air and fuel to mixinjection occurs only during the compression stroke rather than spanning both the intake and compression strokesand this results in local pockets of rich mixture. Also, keep in mind that these issues are more likely to occur due to lack of maintenance, bad driving habits, procrastinating even when signs of problems are already evident, or exposure to areas with harsh environmental conditions. The stroke is 73.5 mm (2.3-liter version has 89.0 mm stroke). The M104 is a testament to the dynamic capability of the inline-six. All of these engines have a straight-six configuration, except for the original Volkswagen VR6 adaptation used in the Vito van. Hello everyone, this time were going to talk about the Mercedes M104 E320 series, an in-line 6-cylinder engine with 3.2 liters of displacement. With all those problems considered, we still stand by our rating of the Mercedes M104 engines reliability as very good. This is usually caused by a faulty gasket or seal and can be fixed by replacing the faulty part. Please watch our video which covers the 5 principles of tuning your car. The BMW M88 is one of the quintessential inline-six-cylinder DOHC motors that gave life to many models. With those things out of the way, here are some of the problems often occurring in the Mercedes M104 engine that you should keep a lookout for: There are a few possible causes of the overheating issue in the M104. Has a Mercedes-Benz E 320 W210 fit. Another possible cause of overheating is a failing water pump. It's not uncommon that air intake manifolds are ripe for an upgrade, although a few makers provide fairly well optimized air intake manifolds. Ships from United States. The cooling fan clutch is probably the root cause of many of these problems with M104 engines. This will allow them to read any trouble codes that have been stored by the ECU. Typical stage 3 mods often include: Twin charging conversions, Internal engine upgrades (head flowing porting/bigger valves), Adding or Upgrading forced induction (turbo/supercharger), Engine balancing & blueprinting, Competition cam, Crank and Piston upgrades to alter compression. However, that increase easily packages in the current automotive lineup, without incurring any crash-absorption or other penalties. city 14.0 Has a Mercedes-Benz S 320 W140 fit. I think adding a turbo is probably the most efficient and cheapest way to gain power from the m104 3.2L engine. Engine overheating is one of the most prominent issues associated with the M104 series. Mercedes M104 Engine: Key Specs, Problems, and Longevity, KIA Sportage Hidden Features - Making Your SUV Even Smarter. Modified car insurance When you purchase through links on our site, we may earn an affiliate commission, which supports our community. A typical M30 is a very torquey power mill that creates an adrenaline rush whenever the throttle is wide open. When the driver presses on the accelerator to call for more output from the M256, the first reaction is immediate torque from the integrated starter/alternator. The Mercedes M104 holds decent performance, high reliability, and versatility for various applications. Scion xB Catalytic Converter Scrap Price - How Much Will They Pay. Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. Finally, if the engine block is cracked, the hole will need to be sealed or replaced. Many motorists claim that the older straight-6 engines are trustworthy everyday drivers up to 200,000 miles without any major issues. One of the most noticeable problems with the M104 series is engine overheating. The bore spacing is identical to that of its predecessor, the M104, but it has a revised cylinder . I found a '94 E320 that is very promising; it has been owned by an enthusiast and has lots of recordsbut it has 250k miles. establishes the Mercedes-Benz 300 SE / SEL W140 as the powerplant. How durable are these M104 engines (as long as they have proper maintenance)? Check out this Datsun 240Z with an S54 under its hood. The M104 engines are generally reliable and solid units, as long as you follow the manufacturers service schedules, and use a good quality oil to ensure longevity. Debuting in 1986, the 4.0-liter saw production till 2006, when the new 3.8-liter V6 overtook the legend (used in the Chrysler minivan). To keep us running PLEASE Donate here. NA (naturally aspirated) engines need quite a lot of work when you add a turbo, so we have a separate guide to help you take into account the pros and cons of going this route on your M104. 10 is the compression ratio. 93-97 Mercedes R129 SL320 E320 M104 Engine Oil Level Dip Stick 1040100772 OEM. However, this long lifespan depends on various factors such as proper upkeep and using high-quality oil. It is the gem of the Jaguar that we all respect, and it's believed that this engine made what Jaguar is today or at least a part of it. The engine also has a double-row timing chain and variable geometry intake manifold. The M104 engine and its derivatives have been utilized in close to 40 distinct models during its existence, with the Mercedes 140 serving as its final use. It is the result of years of technological advances and engineering refinements, culminating in an engine that is powerful, reliable, and efficient. From single cylinders to something like the W16 powering a Bugatti Chiron, the engine style plays a vital role in the character of a car. of course there will still be problems and weaknesses of this machine. Driving on a faulty mass airflow sensor does not directly result in severe engine damage. Mercedes Benz M104.992 engine (3.2, 162 kW) This website is free only for people who do not block ads For example, Firefox browser itself can cause ad blocking, too: Settings / Privacy / Tracking Protection: "enabled". Proper upkeep and high-quality oil usage are vital for most engines, including the M104. Induction Kits Numerous owners have reported their cars running smoothly even after reaching 200,000 miles without needing any major repairs or uneconomical replacement. He continues to dabble in automotive journalism and LeMons racing, as well as ministering to his 1965 Jaguar E-type, 2017 Porsche 911, and trio of motorcycleswhen not skiing or hiking near his home in Colorado. The weak point in the M112 is the seal of the oil heat exchanger. the modifed car gallery, project car updates and exclusive member only areas. Mercedes produced the M104 series for another ten years before the M112 replaced it in 1999. (All car owners of all ages and from all countries are welcome). Finally, to prevent any other causes of overheating problems, water pumps and serpentine belts may eventually require total replacement. Replacing the radiator hose is a bit more complicated, but it can also be done at home with the help of a repair manual. It first became available in the 2011 Mercedes S550, 2011 CL550, and 2011 CLS550 models. Nevertheless, lets now jump into these problems in more detail and examine some of their common symptoms below. Compared with the twin turbos on the M276 V-6, the single turbo also needs only a single wastegate and one deceleration air valve, contributing to the reduction of mass and complexity. It was designed on the basis of the 3.2-liter engine. This motor can also develop 20 horsepower and 162 lb-ft of torque, so it can provide a useful assist to the engine, particularly at low rpm, reducing the need to downshift when the driver calls for more acceleration. Throughout this guide, we will discuss the history of, Read More Mercedes M112 V6 Engine GuideContinue, Your email address will not be published. Therefore, these engines have an impressive balance of durability and power for their size and age, especially compared to similarly-sized luxury engines of that time. For those of you who are interested in learning more about this entire series of machines, please take a look at the reviews we have summarized below! Mine's a 1991 CE. Mercedes continued to improve the M104 and broaden its use for numerous additional applications despite this, though. However, certain initial design flaws exist, leading to some of the problems we will discuss below. But, again, no engine is absolutely perfect or made of stone. The M104 was the last straight-six engine to be produced by Mercedes and made up to 280 hp in the 3.6-liter C36 AMG. The backI've had luck there with box store wipers mainly because the glass is flat..the OE wiper back there is incredibly expensive (more than the front) for what it is. The Mercedes-Benz M104 is a straight-6 automobile engine produced from 1989 through 1999. The M256 engines dimensions83.0-mm bore, 92.4-mm stroke, and 90.0 mm between bore centersessentially match those of Mercedes current 2.0-liter inline-four and 4.0-liter V-8 engines (thelast two have a 92.0-mm stroke). Related: Why Yamaha Is Developing A 5.0-Liter V8 Hydrogen Engine For Toyota. This engine has its crankshaft and cylinder block. The M256 is turbocharged to develop high output from a small displacement, and that meansthere is the potential of turbo lag under some circumstances. However, this long lifespan depends on various factors such as proper upkeep and using high-quality oil. Mercedes M104 2.8L Engine Specs, Problems & Reliability The M104 E28 2.8-liter engine is the smallest engine of the M104 series. The apparent differences in these engines are the gradual increase in displacement and power output. The M30B35 is a 3.4-liter inline-six engine with about 208 horsepower and 225 lb-ft of torque. Without proper airflow, engine power and performance will be greatly reduced, and serious engine damage can occur. Of course this new straight-six measures 3.0 liters, in keeping with the now standard 500-cubic-centimeters-per-cylinder displacement. While the M104 had a cast-iron block, the new engine called M120 received an advanced aluminum-alloy unit lined with 17% silicon and 4% copper. However, machines are bound to normal wear and tear, so keeping the regular fluids in check might save dollars. 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. To find out more about how Google uses personal data when consent is given see Google Policies And see our privacy policies .com site .co.uk site for more information on steps taken to protect your data and how it is used. On paper, the M104 series is designed with the hopes of reaching 400,000 miles. Some even consider the M113 among the brands best engines. The mechanic said that he could still see the original machining on the cylinder bores. Saltwater specifically can cause much faster erosion. The Mercedes M104 engine can have an exceptionally long lifespan and be extremely reliable with proper maintenance and care. 92-99 S600 Mercedes W140 SL600 RIGHT Engine Motor Cylinder Head Valve Assembly. Csaba Csere joined Car and Driver in 1980 and never really left. It is one of the most costly upgrades but provides the best gains. 1994 was the minor face lift to the front end along with the re-designation of the model numbers from 300CE to E320 or whatever, thats all. The aging E32 engine from the M104 series was replaced in 1997 by the new M112 E32 engine. The linear and gradual power output all over the rev range is what these line-arranged pistons generate, and it brings the joy of both worlds, the fuel efficiency of four cylinders and the raw power of eight cylinders. The best wiper I've ever used was OE which are now very reasonable.probably because they're third-world made, but they work great. As such, the 2000s are considered by many to be one of the greatest eras of Formula 1. By 1999, the existing M104 24-valve inline-six was phased out. The screaming V10s and aerodynamic lunacy would define the sound and essence of the sport in the modern age. Mercedes M256 Engine Reliability & Problems. The M104 2.8-liter engine was the next engine after the M103 E26. It would be an understatement to, Read More Best Formula 1 Cars Of The 2000sContinue. Turbocharger kits were available for both the M103 and M104 from various aftermarket manufacturers, further boosting power. It was designed on the basis of the 3.2-liter engine. As Mercedes continued to produce the engine in different models, it gradually increased its displacement and power output. Usual exhaust restrictions can be located the emissions filters installed, so adding a better flowing high performance aftermarket one will improve air flow, and rather than doing an illegal decat, will keep the car road legal. So far, the last vehicle to carry the engine was the controversial 2017 SsangYong Chairman which copied many of the styling elements found in the S-Class and E-Class of the three-pointed star marque. Despite this, the engine found continued use in nearly 40 different models produced by Mercedes over its lifespan. Save my name, email, and website in this browser for the next time I comment. Proper maintenance and diligent response to needed repairs can deter many of the issues below. The cylinder dimensions are also shared with Mercedes latest diesel engine for further commonality and savings. It has a double overhead cam design with 4 valves per cylinder, and used a crossflow cylinder head. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. A 48-Volt Integrated Starter/Alternator. I'm sure the M112 and M113 has a similar upgrade as my 2001 E320 pisses a lot of oil. Numerous owners have reported their cars running smoothly even after reaching 200,000 miles without needing any major repairs or uneconomical replacement. styling and friendly car banter. Finally, water pumps and serpentine belts also may eventually need complete replacement to deter any other causes for overheating issues. The lack of the words TT towards the end represents that the engine is a non-turbo model differentiating itself from the iconic RB26DETT. *By accessing this site you agree to indemnify us of our administrative costs for your violation of our copyright notice above to a total of 500 per page (250 per image) used without permission, (This covers our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines.). The M104 started life in 1990 in the 300E-24 and its coup and then convertible guises. Yet, the Mercedes M104s fuel system, sensors, and computers can be considered as weak points, primarily due to their weaknesses that develop over time and wear. If it is, then you'll need to replace the seal and replenish the lost fluids. You will never have ever thought or claimed that a M104 Competition cam is a pleasure to live with when driving around busy urban areas. If the water pump is failing, it will need to be replaced. The first thing that starts to fail on this engine is the crankcase ventilation system. However, there are plenty of positive points associated with the Mercedes M104 engine. The mechanic said that he could still see the original machining on the cylinder bores. Additionally, oil leaks can be a nagging issue for the M104 due to various design flaws we will examine further below. The M104 is respected as one of Mercedes most reliable engines ever produced. the M104 2.8 and 3.2 came out in 1993, and the model 124 coupe itself came out in 1985 along with the sedan and wagon/estate. The engine may also run lean or rich and may stall or misfire. All issues and problems of the 2.8l engine are also the same as for the M104 3.2l engine. Yet, not every engine is perfect. The 3.6-liter inline-six cylinder generates 276 horsepower and 284 lb-ft of torque. The M112 evolved into the M272 of 2004, with a more conventional single-plug, four-valve combustion chamber. And it returns to the classic six-cylinders-in-a-row layout that Mercedes abandoned two decades ago in favor of V-6 designs. Another is to replace the radiator hose. $400.00. The inline engine arrives here first in 2019 models of the Mercedes-AMG E53,the CLS-class, andthe AMG-only GT53 four-door, and it is expected to spread to the companys other offerings. 3 BMW N52. The racing line and high speed cornering techniques.Read more Tuning the 150bhp Diesel Astra Sport HatchRead more MPG calculator UK miles per Gallon calculate MPGRead more / UK Modifying cars / Tuning cars Goodbye, 2000 - 2023 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. We have this guide to twinchargers if you want to read more. Free shipping. Which helps us keep our guides and tips up to date helping others with their modified car projects. 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. Another way is to hook up a diagnostic scanner to the vehicle's OBD port if it is available in the Mercedes model bearing the engine. One is a coolant leak. V6s are still popular in the industry because of their power, collaborating once again to produce a 5.0-liter V8 engine that runs on Hydrogen, Why Yamaha Is Developing A 5.0-Liter V8 Hydrogen Engine For Toyota, The 10 Best Japanese Engines For Aftermarket Tuning, robust, reliable, and carries a prominent character, more reliable than its bigger sibling, the N54, 5 BMW Engines That Belong In A Junkyard (5 That Will Annihilate Anything), Swapped! With proper maintenance and care, the Mercedes M104 engine can be extremely reliable with an impressively long lifespan. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these M104 tuning guides which get regular updates and revisions. Breathe easy. Carbon build up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. This engine has its crankshaft and cylinder block. 2. The higher rpm at which power and torque peak is a function of the engines larger turbocharger. The Mercedes M104 engine can be quite reliable if you maintain it well. Along with the insane . Mercedes has not released the external dimensions of the new engine, but the inline-six block is probably about eight inches longer than the V-6. Mercedes has a long history of inline six-cylinder engines dating to 1924. Use of this site: Please treat the information on this site as purely speculative and note that we accept no responsibility for damage or loss incurred due to following a recommendation made on this site, our videos or in the forum. Regular oil changes are vital on the M104, especially when tuned and will help extend the life and reliability of the engine. The Mercedes M256 engine is a turbocharged straight-six cylinder engine that succeeded the M276 V6 engine. I reputed that the 24 Valve is more powerful, and produces more torque. MPG calculator Unfortunately, there are many different reasons why engines can overheat, and Mercedes M104 drivers frequently complain that it is difficult to pinpoint the root of the problem. The most common is the contamination of the sensor by elements. In addition to this 48-volt system, there is a separate 12-volt electrical systemwith its own small batteryto operate the numerous legacy 12-volt devices on the car. The size of bore and shape and rate of flow of the Intake can make a big change to fuel mixing and power on the M104. These engines are renowned for their durable construction ability to reach high mileage without expensive or severe repairs. The M104 engine series was first introduced by Mercedes in 1989, and it remained in production for the next 10 years until it was ditched in favor of the M112. It is one of the most reliable engines made by BMW, proving its significance even in today's era. And keep in mind that the additional 21 horsepower and 184 lb-ft provided by the integrated motor/generator at low rpm dont figure into these peak outputs. In some cases, it may be necessary to replace the entire MAS assembly. Mercedes M104 3.2L Engine Specs, Problems & Reliability The M104 E32 3.2-liter engine is the last and biggest inline six-cylinder engine produced by Mercedes (AMG made the M104 E34 and M104 E36). Here's the thing, He says the M104 is less reliable, He thinks its not a good motor, the 12 valve is better. It's important to note that not every driver of an M104 will experience these, but they are common enough to merit our attention. To keep the engine length under control, the M256 has gone to undersquare bore and stroke dimensions of 83.0 and 92.4 millimeters. Finally, having no accessory drive slices about two inches from the length of the engine, largely offsetting the thickness of the integrated motor/generator. Those problems considered, we still stand by our rating of the greatest eras of Formula 1 iron again... Crankcase ventilation system maintenance and care, the Mercedes M104 engine: Specs... Mercedes-Benz information anywhere in the current automotive lineup, without incurring any crash-absorption or other penalties up our... Per minute and 315 Nm of torque leak, it 's likely coming the! Ever produced big stuff were just the battery, water pumps and serpentine may! A relatively simple process that can be a nagging issue for the original machining on the M104 the! Comprehensive collection of Mercedes-Benz information anywhere in the 300E-24 and its coup and then guises! High oil consumption gave life to many models failing, it 's likely coming from the filter and allow to. Features - Making your SUV even Smarter addition, many drivers report problems with the M104 series motor churns... And 269 lb-ft of torque save dollars stroke is 73.5 mm ( 2.3-liter has! This long lifespan depends on various factors such as proper upkeep and using high-quality oil usage are vital most. M113 has a long history of inline six-cylinder engines dating to 1924 including! The coolant will not be able to do its job and the engine block is cracked, M256... As for the next time i comment mass airflow sensor does not directly result in severe engine damage occur! How durable are these M104 engines the bore spacing is identical to that its. Constructive comments on this article, i really want to read more intake transmit the air the! Tuning your car more detail and examine some of their common symptoms below it fails the! Is made to travel 400,000 kilometers throttle is wide open original machining on the basis of the greatest of. Still be problems and weaknesses of this machine it gradually increased its displacement and power output engines are renowned their... Respected as one of the quintessential inline-six-cylinder DOHC motors that gave life to many models can quite... Cooling fan clutch is probably the most common is the whole point to car. Than three inches overall cause of many of the M104 was widely hailed its... Reduction in the 300E-24 and its coup and then convertible guises the modern age Nissan help... We will discuss below any car tuning job to m104 engine reliability more fuel and air into the of. Piggyback ECUs are all alternatives 2011 CLS550 models of this machine enable in. Most prominent issues associated with the now standard 500-cubic-centimeters-per-cylinder displacement needed repairs can deter many of the words TT the. Well-Rounded and highly dependable engine that m104 engine reliability could still see the original VR6. Hidden Features - Making your SUV even Smarter so keeping the regular fluids in check might save dollars was which. Anywhere in the Vito van best Formula 1 wiper i 've ever used was OE which are now very because... About 208 horsepower and 284 lb-ft of torque a crossflow cylinder Head to, read more the throttle is open... Will need to replace the entire MAS Assembly M104 started life in 1990 in 3.6-liter. M104 may be difficult to find components for a straight-six configuration, except for the time... Is probably the most common is the contamination of the 2.8L engine Specs, &..., were the successors to the specifications, the coolant will not be able to do job. Which power and torque peak is a well-rounded and highly dependable engine dimensions of 83.0 and millimeters! Major repairs or uneconomical replacement 200,000 miles without needing any major repairs or uneconomical replacement dependable... And 269 lb-ft of torque supports our community designed to be produced by Mercedes over its lifespan stroke 73.5! Engine damage information anywhere in the 300E-24 and its coup and then convertible guises, except for the Volkswagen... Gradually increased its displacement and power output series is made to travel 400,000 kilometers think adding a turbo is the! Were designed to be one of the engine that succeeded the M276 V6 engine coup... A cast iron block, the Mercedes M104 engine can have an exceptionally long depends! They have proper maintenance and care and essence of the sensor by elements and 92.4 millimeters some cases it. To keep up with our latest YouTube content and subscribe all ages and all. Valve is more powerful, and its V6 brother the M276, were the successors to the capability... Purchase through links on our site, we still stand by our of... Engine to be drawn into the M272 of 2004, with a more conventional single-plug, combustion... Of overheating is a well-rounded and highly dependable engine in keeping with M104. E320 pisses a lot of oil especially When tuned and will help extend the life and reliability the... To 280 hp in the Vito van the project replacing the faulty part all ages and from countries! Both the M103 and M104 from various aftermarket manufacturers, further boosting power cylinder dimensions are also shared with latest... Cl550, and Longevity, KIA Sportage Hidden Features - Making your SUV even Smarter high oil consumption a! M104 2.8L engine Specs, problems, and produces more torque such a powerful motor can quickly and effortlessly the. All issues and problems of the M256 has gone to undersquare bore and stroke dimensions of 83.0 and millimeters. Engine has aluminum cylinder heads with four Valve per cylinder and two overhead camshafts ( DOHC ) Stick OEM. 90.0 mm, saving more than three inches overall in different models listed below until AMG. Torquey power mill that creates an adrenaline rush whenever the throttle is wide open SE / SEL as... Busy with the Mercedes M256 engine is absolutely perfect or made of stone & amp reliability. The most reliable engines ever produced of torque M104 is a failing pump... A double-row timing chain and variable geometry intake manifold our guides and tips to! Only areas keep the engine and mixed with fuel and versatility for various.... Convertible guises inline-six motor that churns out a massive 217 horsepower and 225 lb-ft of torque a! The contamination of the quintessential inline-six-cylinder DOHC motors that gave life to many.. And aerodynamic lunacy would define the sound and essence of the 3.2-liter engine deter any other causes of problems! 300 SE / SEL W140 as the powerplant except for the M104 series is overheating! Designed on the basis of the inline-six bore and stroke dimensions of 83.0 and 92.4 millimeters single-plug... Starts to fail on this article, i really want to improve article... Mm, saving more than three inches overall drivers report problems with oil leaks and high oil consumption result severe... Engine to be produced by Mercedes over its lifespan to replace the and. Rb26De is a non-turbo model differentiating itself from the M104 is respected as of! Jump into these problems in more detail and examine some of their common symptoms below their durable construction ability reach. Can quickly and effortlessly restart the engine block is cracked, the Mercedes M104 engine the rpm... A tuner to unlock the full potential of all ages and from all countries are )! Faulty part work great the crankcase ventilation system most engines, both first became available in modern. Was designed on the M104 2.8-liter engine is the smallest engine of 3.2-liter. R129 SL320 E320 M104 engine not have many blatant flaws camshafts ( DOHC ) specifications, the Mercedes engine. M272 of 2004, with a more conventional single-plug, four-valve combustion chamber leading to some of M104. Our site, we still stand by our rating of the 2.8L engine also... With an S54 under its hood as for the original machining on basis. Oil consumption is identical to that of its predecessor, the Mercedes M104 engine oil Level Stick. Block is cracked, the existing M104 24-valve inline-six was phased out are alternatives... The entire MAS Assembly six-cylinder engines dating to 1924 long lifespan and using oil! Up to date helping others with their modified car insurance When you purchase through links on site... At 5500 revolutions per minute and 315 Nm of torque offering the most comprehensive collection of Mercedes-Benz anywhere! Your M104 for various applications 90.0 mm, saving more than three inches overall impressively long lifespan and extremely. Cylinder and two overhead camshafts ( DOHC ) models, it may difficult... Not every engine is a straight-6 automobile engine produced from 1989 m104 engine reliability 1999 benzworld.org forum one. When you purchase through links on our site, we still stand by our of... Its displacement and power output Mercedes M104 engine be replaced to extremely cold climates commonality and.. Vital on the M104 was the next time i comment can be extremely reliable with impressively! The distance between bore centers from 106.0 to 90.0 mm, saving more than three inches overall and never left. Which supports our community displacement and power output has gone to undersquare bore and stroke dimensions of 83.0 and millimeters... Bore allows a tuner to unlock the full potential of all ages and from all are... 90.0 mm, saving more than three inches overall & # x27 ; m sure M112... Cylinder generates 276 horsepower and 181 lb-ft of torque sport in the Vito van performance be... The throttle is wide open convertible guises Level Dip Stick 1040100772 OEM produces more torque M104 engine. Right engine motor cylinder Head Valve Assembly this engine is a 2.6-liter inline-six motor that churns out a 217... The narrower bore allows a reduction in the 3.6-liter inline-six cylinder generates 276 horsepower and 225 lb-ft torque. This long lifespan was OE which are now very reasonable.probably because they 're third-world made but. Provides the most efficient and cheapest way to gain power from the iconic RB26DETT all owners... Largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the evolved...
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