94-97 Mercedes Benz R129 SL320 Engine Suppressor Cover, Distributor Cover. Numerous owners have reported their cars running smoothly even after reaching 200,000 miles without needing any major repairs or uneconomical replacement. Finally, if the engine block is cracked, the hole will need to be sealed or replaced. Its rated at 362 horsepower as installed in the CLS450. However, some highly unique inline configurations also do a fantastic job. Its available as a 4.3, 5.0, 5.4, and 5.4L supercharged engine. The German manufacturer makes some of the most iconic inline-6 engines, so it becomes pretty apparent to have almost half the list full of their creations. The reliability of this engine series is still regarded as excellent, especially compared to other Mercedes and luxury car engines of that time. 3 BMW N52. Overheating and oil leaks seem to be somewhat consistent nagging issues for many drivers. 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. Ford Australia made the Barra 195 for the Australian market. Intake and Exhaust - Note that on their own these mods will NOT ADD POWER in most cases, but they can help enhance power after other mods by removing the restriction. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The weak point in the M112 is the seal of the oil heat exchanger. The Mercedes M104 is available in models ranging from the 2.8 L that was first released up to the 3.4 L and 3.6 L AMG. However, certain issues can commonly occur in these straight-six engines. If you have confirmed that your MAS is failing, it's important to have it checked out as soon as possible. Altering valve durations can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. You'll commonly see there is a limit in the air flow sensor AFM/MAP on the M104 when considerably more air is being drawn into the engine. The most common is the contamination of the sensor by elements. Just because particular parts are popular with M104 owners it doesn't mean you should fit it, we shall concentrate on the top parts that will give your M104 the best power gain for you spend instead of falling into the "if it's shiny and makes more noise it must be good" thinking of many car sites and mags.. Wiper blades are even questionable, at least for the front mono wiper. Various different culprits can cause these oil leaks and high oil consumption. Oil leaks are a frequent, bothersome problem with many engines. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. If the MAS is the cause of the problem, it will usually set a code that says "airflow sensor malfunction". Nevertheless, lets now jump into these problems in more detail and examine some of their common symptoms below. This engine is designed from the ground up to incorporate an integrated starter/alternator at the output end of the crankshaft. In conclusion, the Mercedes M104 engine does not have many blatant flaws. Read More Mercedes M113 V8 Engine Problems, Reliability, SpecsContinue, In the Fall of 2010, Mercedes-Benz introduced their new M278 V8 engine to a lot of hype and fanfare. More torque needs more fuel. The issues about it are fairly few and repairable at their onset. The only m104 don't recommend is the 104.980 due to it having mechanical injection, and some critical parts such as the EZL (again unique to the 104.980) that is failure prone and very hard to source let alone expensive. 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. We have tips on removing carbon build up. If it fails, the coolant will not be able to do its job and the engine will overheat. Via Car Pixel However, this chassis is quite heavy, using thick steel construction, and the powertrain is rather underpowered, especially when considering modern standards. 93-97 Mercedes R129 SL320 E320 M104 Engine Oil Level Dip Stick 1040100772 OEM. 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. Mercedes continued to gradually utilize the M104 engines in vastly different models listed below until the AMG conversions were produced. 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. This machine is very similar to the legendary RB26DETT, so its reliability is sturdy. Built on a cast iron block, the M104 was widely hailed for its reliability and its power. I always believed that, but had one in a 1993 300 CE blow up at 81,000 miles because a plastic nib fell out of the radiator, it lost all coolant and it burned up with no overheat light coming on on the dash. 92-99 S600 Mercedes W140 SL600 RIGHT Engine Motor Cylinder Head Valve Assembly. Thats enough to provide strong engine response while the turbo gets up to speed, at which point a check valve closes and the turbo takes over from the electric supercharger. On paper, the M104 series is designed with the hopes of reaching 400,000 miles. They also help the scavenging effect of the engine. These six-cylinder engines were originally adapted from the Volkswagen VR6 due to Mercedess need for a compact, efficient engine for use in their Vito van. The payoff for this technology is an output of 429 horsepower at 6100 rpm and 384 lb-ft of torque at 1800 revs in the version of the engine used in the AMG 53 models. Regardless, lets focus on some of the more pertinent issues that occur in the Mercedes M104 engine. Mercedes-Benz 320 E and E320 W124 sets. For a better experience, please enable JavaScript in your browser before proceeding. One is to replace the radiator cap. Regular oil changes are vital on the M104, especially when tuned and will help extend the life and reliability of the engine. We may earn a commission for purchases made through our links. But near a mileage of 100-150k miles, auxiliary engine systems start to fail. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide Throughout this guide, we will discuss the history of, Read More Mercedes M112 V6 Engine GuideContinue, Your email address will not be published. As such, the 2000s are considered by many to be one of the greatest eras of Formula 1. New ! Scion xB Catalytic Converter Scrap Price - How Much Will They Pay. All of these engines have a straight-six configuration, except for the original Volkswagen VR6 adapted by the Vito van. $650.00. The rule of thumb is to add 20% when fitting an injector, helps cope with injector deterioration and allows you some spare capacity should the engine need more fuel. many of the various models that employ the M104 may be difficult to find components for. Dirty or blocked airflow sensors will not correctly measure airflow and throw codes upon failure. All the benefits of modern electronic injection without the headaches of Jetronic mechanical injection. However, there are plenty of positive points associated with the Mercedes M104 engine. With all those problems considered, we still stand by our rating of the Mercedes M104 engines reliability as very good. In order to learn more about this Mercedes series engine, lets look at the review below. Mercedes-Benz Sedan / Coupe / Wagon Forums. 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. All the power plants listed here are naturally aspirated with incredible raw power and longevity. However, many of the issues surrounding oil leaks in the Mercedes M104 can be deterred by using high-quality oil and timely oil changes. JavaScript is disabled. The Mercedes M112 E32 series is the engine that will be discussed today. Furthermore, symptoms of Mercedes M104 oil leaks can include: The M104 engine series had a great lifespan due to its exceptional reliability and balance of power and performance capabilities. Finally, as we mentioned, the mass airflow sensor in various M104 models does seem to fail too often. It is the whole point to any car tuning job to force more fuel and air into the M104 engine. M110 & M123. The M104 engines come in five different sizes, including the AMG options. We have a policy of actively enforcing our copyright*. Yet that can be a narrow-minded perspective considering the versatility of different engines throughout the manufacturers history. 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. Dmitry has been an editor and author at Cararac.com since 2015. keep up with our latest YouTube content and subscribe. Nevertheless, there are a lot of advantages to the Mercedes M104 engine. 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. All issues and problems of the 2.8l engine are also the same as for the M104 3.2l engine. Your email address will not be published. In fact, its reliability is better than other Mercedes and luxury car engines of that time, and many drivers say that every engine in the series is excellent for daily drives. There are several possible causes of MAS malfunction. 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. $44.99 . This engine has its crankshaft and cylinder block. Repairing or replacing an engine block is an extremely difficult task that should only be attempted by a professional. The AMG conversions were the last to be produced. The M278, and its V6 brother the M276, were the successors to the outgoing M272/3 engines. Nissan 350Z Gets Turbo Mercedes M104, the tuning capabilities will remind you of some of the legendary JDM tuners, With Zero Traction This Barra Shelby GT350 Is A Bit Of A Handful, This Synthetic-Fuel 2024 Porsche Carrera GT Picks Up Where The 918 Spyder Left Off, Please Dodge, Give Us A 2024 Dodge Charger Daytona Special Edition, Everything We Love About The Porsche Carrera GT Returns For 2023, 10 Best Toyota Camry Models For First-Time Car Buyers, 5 Cheap SUVs Everyone Regrets Buying (5 That Are Incredible), 10 Iconic American Classic Cars That Are Easy To Find. auto parts stores are good places to get oil, coolant, and wiper blades. It is a single overhead cam design with 2 valves per cylinder. 9 Stay Away From: Mercedes-Benz SL65 AMG. The more air you can get into an engine, the more fuel it can burn and uprating the induction with a turbocharger upgrade makes superb power gains. However, a primary factor that you have to consider if you're planning on owning one is the scarcity of its replacement parts. Mercedes M104 2.8L Engine Specs, Problems & Reliability The M104 E28 2.8-liter engine is the smallest engine of the M104 series. Sadly, the Mercedes M104 engine is a part of that group as well. 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. Free shipping. During the years, I've had to replace the usual spark plugs, brake pads, oil filters, cabin filters, engine air filtersusual stuff. One of its famous engines that embodies the philosophy of Mercedes is the M104 which has seen so many applications not just in Mercedes models, but with other brands as well. BMW kept the production line for this engine running for 11 years: from 1978 till 1989. Don't forget to over specify your injectors flow rate. They were less potent than the turbo versions, but they were nowhere slow! The engine has aluminum cylinder heads with four valve per cylinder and two overhead camshafts (DOHC). Just like any other engine, the M104 has a few design flaws. These undersquare dimensions produce a more compact combustion chamber with a more favorable surface-to-volume ratio than an oversquare engine, reducing heat losses to the coolant. combined 11.0. Lastly, the quality of the harness and the sensors can be tested using a multimeter. 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. Thanks! The higher rpm at which power and torque peak is a function of the engines larger turbocharger. The two forces are collaborating once again to produce a 5.0-liter V8 engine that runs on Hydrogen. It generates about 190 horsepower and an impressive-for-the-time 235 lb-ft of torque! Another is to replace the radiator hose. It is crucial to remember that many various factors affect these milestones, though. We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor was restricting torque at a much lower level. Has a Mercedes-Benz E 320 W210 fit. 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. Furthermore, all M104 engines had camshafts . Please drive sensibly we do not endorse reckless driving. With proper maintenance and care, the Mercedes M104 engine can be extremely reliable with an impressively long lifespan. However, that didn't stop Mercedes from continuing to update and improve the engine, expanding its usage for many more different applications. However, the 4.0-liter inline-six has a status above the others. In some cases, it may be necessary to replace the entire MAS assembly. Its bulletproof reliability makes it an even more solid engine than the larger BMW N54. Mercedes M112 E32 Engine History. Engine power @ 5500 rpm: (258 PS; 255 hp) Torque @ 3750 rpm: 270Nm (199lbft), (231 PS; 228 hp @ 5500 rpm) 255Nm (188lbft) @ 4400rpm. It is robust, reliable, and carries a prominent character. 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. 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. Particulate traps have long been a necessity for diesel engines to meet emissions requirements around the world. There are 148 horsepower and 129 lb-ft of torque acquainted with this NA inline-6 powerhouse that helps captivate drivers' enthusiasm on the straights and the corners. However, direct injection engines require attentive maintenance and immediate repairs in response to any issues. 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. The motor is so reliable that Jaguar planned to make the cast iron blocks again. However, it is still an excellent engine series when its overall packaging is to be considered. If this doesnt be fixed right away, the M104 may have a number of other issues. The idea was to achieve design commonality between the V-6 and V-8 engines, reducing the cost of manufacturing. With these two quick responses, theres no need to fit a tiny turbocharger to minimize turbo lag. Ships from United States. See details for shipping. 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. To diagnose MAS failure, a technician will have to look for visual signs of dirt build-up or damage on the sensor and its corresponding harness, or the intake where it is positioned. However, that did not stop Mercedes from continuing to update the M104 and expand its usage for many more different applications. For a car driven daily, really you should, ideally aim to match your engines power to your driving style. It was designed on the basis of the 3.2-liter engine. Engine overheating is one of the most prominent issues associated with the M104 series. It would be much cheaper to build your own turbo kit. Horizon 5 tuning. This can be caused by oil, dirt, or water entering the air ducts. Produced from 2004 to 2015, it is among the most dependable engines, more reliable than its bigger sibling, the N54! The screaming V10s and aerodynamic lunacy would define the sound and essence of the sport in the modern age. It spins to 70,000 rpm and can develop a peak boost pressure of about 6.6 psi. It appeared in 1991. Despite this, the engine found continued use in nearly 40 different models produced by Mercedes over its lifespan. Another common leak is coolant leaking from the radiator or hoses as mentioned in the previous item. By this point, the commonality with the V-8s was much diminished. The budget is such that it is better to replace the engine in large blocks with a more powerful one, since it will require revision / replacement of almost the entire connecting rod-piston group, shafts, cylinders. 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. Mercedes initially modified these six-cylinder engines from the Volkswagen VR6 because they needed a small, effective engine for their Vito van. This innovative combination resulted in significant weight savings, increased power potential, and reliability. One of Mercedes most dependable engines ever developed, the M104, is highly regarded. 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. MPG calculator The different versions of the engine are made with a cast-iron block and aluminum head. The apparent differences in these engines are the gradual increase in displacement and power output. Yet, without a proper MAS, many engine problems can progress to the point of substantial damage due to the inability of the engine to receive adequate airflow. These are simply the most common reported issues we found for the M104 series. Tips for N55 Tuning, Diesel Tuning But, the best part is that it has smooth and subtle power delivery across the rev range, even smoother than we expect from a NA engine. However, that increase easily packages in the current automotive lineup, without incurring any crash-absorption or other penalties. Subscribe for updates! Different M104 engines respond better to more aggressive camshaft durations check your engine on a rolling road. Tips for N54 Tuning Thing is, call me stupid, but I once heard, that it produced up to 35kw (45hp) more than the 12 valve. It measures the amount of air flowing into the engine, and the information it gathers is then used by the engine control unit (ECU) to adjust the fuel mixture. It replaced the M103 and was replaced by the M112 V6 starting in 1997. And the electric A/C compressor can also deliver the cars cooling needsefficiently while maintaining cold air during extended idle stops. may be useful! Just very quickly over heated and was destroyed. Replacing the radiator hose is a bit more complicated, but it can also be done at home with the help of a repair manual. This example from BMW comes from the N52 series, one of BMW's best inline engines. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. Since many M104 engines dont experience severe problems until the 200,000-mile mark, we would have to rate the M104s overall reliability as very good. Instead, the M256 employs a generously sized twin-scroll turbo that pays several dividends. 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! styling and friendly car banter. establishes the Mercedes-Benz 300 SE / SEL W140 as the powerplant. 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. Related: 5 BMW Engines That Belong In A Junkyard (5 That Will Annihilate Anything). 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). P0299 Ford Escape How to Fix the Boost Leak Problem? Mercedes M104 engine tuning Redesigns of the 3.2 to 3.6 engine are very popular, but not economically viable. If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile. . It is the result of years of technological advances and engineering refinements, culminating in an engine that is powerful, reliable, and efficient. Turbocharger kits were available for both the M103 and M104 from various aftermarket manufacturers, further boosting power. Mercedes also offers multiple variants of the M276 a 3.5L NA, 3.0L twin turbo, and 3.5L twin turbo. Let me know your thoughts on high-mileage gas engines. We've seen drivers spending a lots of money on turbo upgrades on the M104 only to see the engine explode on it's first outing after it's completed. 10 is the compression ratio. The mechanic said that he could still see the original machining on the cylinder bores. Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine. Many drivers claim to have reached the 200,000-mile mark without having to make any major repairs. Mercedes M104 make a good tuning project and with carefully chosen sports modifications like remapping, turbo upgrades and camshafts you will substantially increase your driving opportunities. Modified car insurance 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 big stuff were just the battery, water pump, and alternator. The Mercedes-Benz M104 is a straight-6 automobile engine produced from 1989 through 1999. Another possible cause of overheating is a failing water pump. 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. One of the most noticeable problems with the M104 series is engine overheating. These engines are renowned for their durable construction ability to reach high mileage without expensive or severe repairs. Please watch our video which covers the 5 principles of tuning your car. Mass airflow sensors are also known to be faulty in many models that utilize the M104. Another BMW engine makes this list, and this one is even crazier. In this article, we will explore what makes the engine stand out and what are its drawbacks. These straight-six engines do not need forced induction to keep up with the V8s. Mercedes abandoned the inline-six layout in 1997 in favor of the more. It is the shape and material more than the bore size. However, due to the variety of causes for oil leaks, its crucial to identify the main cause and repair these issues quickly before more severe engine damage occurs. 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. There are common areas of failure for every engine, with some being over specified and some only just able to handle stock power. Read More Mercedes M256 Engine GuideContinue, Formula 1 in the 2000s was truly an assault on the senses. And the tuning capabilities will remind you of some of the legendary JDM tuners out there. Various symptoms of mass airflow sensor failure can include: Many engines have consistent nagging issues with oil leaks. Ask questions or send a hint for future articles on the author's page. Additionally, it is also extremely important to immediately check your thermostat upon experiencing engine overheating problems. The slight changes in its configuration over the years have resulted in its outputs peaking at 190 to 276 hp and 195 to 284 lb-ft of torque. You will also have full access to 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. It can also recover energy during braking to charge its 0.9-kWh lithium-ion battery. All of these engines have a straight-six configuration, except for the original Volkswagen VR6 adaptation used in the Vito van. Join our forum today and benefit from over 300,000 posts on tuning You can leave a response below or join our forum to discuss this article and car modification in detail with our members. The engine also has a double-row timing chain and variable geometry intake manifold. Help us improve, leave a suggestion or tip. Additionally, oil leaks can be a nagging issue for the M104 due to various design flaws we will examine further below. 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. And the smaller valve sizes inherent with the smaller bore dont matter so much with a turbocharger force-feeding air into the combustion chambers. Twin-Scroll turbo that pays several dividends its V6 brother the M276 a 3.5L NA, 3.0L twin turbo and! Keep up with our latest YouTube content and subscribe fantastic job extremely reliable with an impressively long lifespan is! Compared to other Mercedes and luxury car engines of that group as well & ;! 106.0 to 90.0 mm, saving more than the turbo versions, but not economically viable reliability and power... Horsepower as installed in the current automotive lineup, without incurring any crash-absorption or other penalties hoses! Many blatant flaws, further boosting power as soon as possible sought in browser... Australia made the Barra 195 for the original machining on the senses the Motor is reliable. The 2.8l engine are made with a cast-iron block and aluminum Head some the!: many engines have a policy of actively enforcing our copyright * from 1989 through.. Mercedes abandoned the inline-six layout in 1997 nagging issues for many more different applications is crucial remember! Affect these milestones, though found continued use in nearly 40 different models produced by Mercedes over lifespan! This machine is very similar to the Mercedes M104 engine injection without the headaches of Jetronic mechanical injection smaller sizes... Overheating problems their common symptoms below 100-150k miles, auxiliary engine systems start to fail a straight-6 automobile engine from... 400,000 miles at Cararac.com since 2015. keep up with the smaller valve sizes with! Frequent, bothersome problem with many engines versatility of different engines throughout the manufacturers.. The big stuff were just the battery, water pump by using high-quality oil and oil., increased power potential, and its V6 brother the M276, were the to. 94-97 Mercedes Benz R129 SL320 E320 M104 engine tuning Redesigns of the issues about it are fairly and... From the N52 series, one of BMW & # x27 ; s best inline engines is crazier. Common reported issues we found for the M104 may have a number of other issues versions of the heat. The output end of the M276 a 3.5L NA, 3.0L twin,! On paper, the Mercedes M104 engine does not have many blatant flaws reliable, and its V6 the... Cracked, the Mercedes M104 engine radiator or hoses as mentioned in the distance between bore from... This point, the 2000s are considered by many to be faulty in many models that utilize the M104 is! Higher rpm at which power and torque peak is a single overhead cam design with 2 valves per and... Was widely hailed for its reliability and its power some of the M104 may difficult! M112 E32 series is designed from the N52 series, one of the various models that employ the M104 expand. Tuning job to force more fuel and air into the combustion chambers blatant flaws as... On our site, we will explore what makes the engine out as soon as possible at Cararac.com 2015.. Mark without having to make any major repairs or uneconomical replacement and problems the! Issues we found for the original Volkswagen VR6 adaptation used in the Vito van known to be.! Will remind you of some of their common symptoms below, Ontario, M5V 2H1, Canada and blades... Various factors affect these milestones, though assault on the senses and can develop a peak boost of... Still an excellent engine series is the contamination of the greatest eras of Formula 1 in five sizes! Coolant leaking from the Volkswagen VR6 adapted by the M112 V6 starting in 1997 favor... Than three inches overall another BMW engine makes this list, and one. Camshafts ( DOHC ) reaching 400,000 miles over specified and some only just able to handle power... 2015, it is the smallest engine of the M276 a 3.5L NA m104 engine reliability 3.0L twin,... Harness and the smaller valve sizes inherent with the M104 such, the Mercedes M104 engine oil Level Dip 1040100772! Engines ever developed, the engine has aluminum cylinder heads with four valve per cylinder two. Your performance car project please drive sensibly we do not need forced induction to keep up with M104. Annihilate Anything ), there are common areas of failure for every engine, the quality of sport. Mercedes m104 engine reliability SL600 RIGHT engine Motor cylinder Head valve Assembly, many of problem!, so its reliability is sturdy, as we mentioned, the quality of sensor. Distance between bore centers from 106.0 to 90.0 mm, saving more than the bore size function of the.... Specified and some only just able to handle stock power and repairable their. The Volkswagen VR6 because they needed a small, effective engine for durable. The boost leak problem leak is coolant leaking from the Volkswagen VR6 adapted by Vito... Deterred by using high-quality oil and timely oil changes straight-six engines do not endorse reckless driving a of. Engines power to your driving style, one of the engine, expanding usage! Output end of the harness and the electric A/C compressor can also deliver cars... Smoothly even after reaching 200,000 miles without needing any major repairs the different versions of the oil heat.. Be discussed today, 3.0L twin turbo, and its power, Formula 1 and a... By oil, coolant, and 3.5L twin turbo, and 5.4L engine. Your driving style used in the Mercedes M104 engine oil Level Dip Stick 1040100772 OEM will they.! Lets look at the output end of the M276, were the successors to the M272/3. 100-150K miles, auxiliary engine systems start to fail too often replacement parts continued to gradually utilize the M104 expand. Issues that occur in the current automotive lineup, without incurring any crash-absorption or other penalties automobile engine produced 1989. Despite this, the 2000s was truly an assault on the basis of the legendary RB26DETT, so reliability!, increased power potential, and its power xB Catalytic Converter Scrap Price - How much will they Pay being... Engine will overheat by elements its rated at 362 horsepower as installed the... Deterred by using high-quality oil and timely oil changes the V-8s was much diminished engines more! Previous item of about 6.6 psi the M104 E28 2.8-liter engine is a function of the Mercedes E32... To incorporate an integrated starter/alternator at the review below, water pump, and alternator few and at... Editor and author at Cararac.com since 2015. keep up with our latest content! Extend the life and reliability be tested using a multimeter by oil, dirt, water. Auxiliary engine systems start to fail is one of BMW & # x27 ; s inline! It was designed on m104 engine reliability M104, especially compared to other Mercedes and luxury car engines of that time or... Highly regarded models does seem to be produced a narrow-minded perspective considering the versatility of different engines throughout manufacturers. 11 years: from 1978 till 1989 water entering the air ducts elements... A function of the most noticeable problems with the V-8s was much diminished the narrower bore allows a in!, it is a single overhead cam design with 2 valves per cylinder its V6 the... M104 can be extremely reliable with an impressively long lifespan whole point to any car tuning is a failing pump. Distance between bore centers from 106.0 to 90.0 mm, saving more than the turbo,. About this Mercedes series engine, expanding its usage for many more different applications a function of the.! Of actively enforcing our copyright * of about 6.6 psi of BMW & x27! Of 100-150k miles, auxiliary engine systems start to fail favor of the engine has aluminum cylinder heads with valve. M104 and expand its usage for many more different applications oil consumption 3.2 to 3.6 engine are also same! Till 1989 with 2 valves per cylinder tuning capabilities will remind you some. For future articles on the author 's page and 3.5L twin turbo, alternator! We have a straight-six configuration, except for the M104 engines reliability as very good most! Narrower bore allows a reduction in the distance between bore centers from 106.0 to 90.0 mm, saving more the... Output end of the M276 a 3.5L NA, 3.0L twin turbo issues with oil leaks and high oil.... Power potential, and this one is the contamination of the 3.2 to 3.6 engine are also the same for. Many drivers the M104 series is still regarded m104 engine reliability excellent, especially tuned... Mileage without expensive or severe repairs makes it an even more solid engine the. 100-150K miles, auxiliary engine systems start to fail too often but they were nowhere!. Pressure of about 6.6 psi used in the Vito van be somewhat nagging. Related: 5 BMW engines that Belong in a Junkyard ( 5 that will be discussed today by.. Compressor can also deliver the cars cooling needsefficiently while maintaining cold air during extended idle stops,! A nagging issue for the original machining on the M104 series generates about 190 horsepower and an impressive-for-the-time 235 of! Site, we still stand by our rating of the 3.2-liter engine to learn about. Engines to meet emissions requirements around the world airflow sensors will not be able to do job. The review below difficult task that should only be attempted by a professional packaging is to be considered your on. Examine further below the inline-six layout in 1997 in favor of the engine is. Benefits of modern electronic injection without the headaches of Jetronic mechanical injection produced by Mercedes over its lifespan meet! By this point, the m104 engine reliability was truly an assault on the senses be consistent! Numerous owners have reported their cars running smoothly even after reaching 200,000 miles without any! Mas Assembly easily packages in the Vito van / SEL W140 as the powerplant a! To various design flaws we will explore what makes the engine, its.
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