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. Mercedes makes some of the most fanatic cars on this planet and even crazier engines. Oil leaks. Related: With Zero Traction This Barra Shelby GT350 Is A Bit Of A Handful. I have one my self completely stock. Nissan 350Z Gets Turbo Mercedes M104. This was remedied in the later years of W124 production where the neck had a reinforcement on the inside of the upper radiator neck. Its bulletproof reliability makes it an even more solid engine than the larger BMW N54. The M112 evolved into the M272 of 2004, with a more conventional single-plug, four-valve combustion chamber. Big upgraded turbo chargers commonly suffer a bottom end lag, and little turbo chargers spool up much more quickly but don't have the peak end torque gains. Mercedes continued producing the M104 series for a decade until its succession by the M112 in 1999. New ! 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. These engines have evolved and strengthened since Daimler made the first one. Mercedes M113 V8 Engine Problems, Reliability, Specs. Many drivers claim to have reached the 200,000-mile mark without having to make any major repairs. Mercedes M104 2.8L Engine Specs, Problems & Reliability The M104 E28 2.8-liter engine is the smallest engine of the M104 series. Yet that can be a narrow-minded perspective considering the versatility of different engines throughout the manufacturers history. Ask questions or send a hint for future articles on the author's page. Any small excerpts and quotes copied must be accompanied by a link to the source material. 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. All of these engines have a straight-six configuration, except for the original Volkswagen VR6 adapted by the Vito van. It is crucial to remember that many various factors affect these milestones, though. . Typical stage 1 mods often include: Fast road camshaft, Panel air filters, Remaps/piggy back ECU, Intake manifolds, Sports exhaust header/manifold, drilled & smoothed airbox. Mercedes abandoned the inline-six layout in 1997 in favor of the more. It first became available in the 2011 Mercedes S550, 2011 CL550, and 2011 CLS550 models. 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. Mercedes M104 engine leaks can be frustrating and difficult to diagnose. It is the whole point to any car tuning job to force more fuel and air into the M104 engine. During the years, I've had to replace the usual spark plugs, brake pads, oil filters, cabin filters, engine air filtersusual stuff. Mercedess Nine Decades of Six-Cylinder History. The Ford Barra engine debuted in 2002 and is one of the significant selling engines in the USA and Australia. These engines are renowned for their durable construction ability to reach high mileage without expensive or severe repairs. The M104 piss oil from the rear engine seal sooner than a M119, but not as bad as a M112 and m113. 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. In order to learn more about this Mercedes series engine, lets look at the review below. 3 BMW N52. Track day insurance cover Shipping: Free Standard Shipping. This is because a competition cam causes a very lumpy idle, and makes the car more prone to stall or jerk along in stop start traffic, sadly though many ignore this and end up ruining a perfectly good car and having to revert back to a fast road, or OEM cam profile. Toyota initially reached out to Nissan for help, but Nissan was busy with the Fairlady, so Yamaha alone handled the project. 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. As 48-volt technology proliferates, expect to see these devices replaced by 48-volt equivalents, which will lead to the extinction of the 12-volt power circuit. 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. Please help us improve these tips by sending us your feedback in the comments box below. 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. MPG calculator Lastly, the quality of the harness and the sensors can be tested using a multimeter. Fast and reliable. 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. 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. Then the electric supercharger spins up in 0.3 second to deliver useful boost. Mass airflow sensors indicate if an engine is receiving the proper amount of airflow. Yet, it is essential to note that these milestones are dependent on many different variables. 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. Only used synthetic oil. The issues about it are fairly few and repairable at their onset. Another BMW engine makes this list, and this one is even crazier. It is the shape and material more than the bore size. many of the various models that employ the M104 may be difficult to find components for. Mercedes-Benz 320 E and E320 W124 sets. 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. "All you need to know about performance parts and tuning the Mercedes M104 engine!". The first thing that starts to fail on this engine is the crankcase ventilation system. But in 1997, the company introduced its first V-6, the 90-degree M112, which shared its basic single-overhead-cam, three-valve-per-cylinder, twin-spark-plug design with the subsequent M113 V-8. The water pump aids in circulating coolant throughout the engine. Its important to note that not every M104 driver will experience these issues; however, we found them common enough to be considered the main problems to keep an eye out for. 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). And the electric A/C compressor can also deliver the cars cooling needsefficiently while maintaining cold air during extended idle stops. The Mercedes M104 can be found in the initially introduced 2.8 L ranging upwards to the 3.4L and 3.6L AMG versions. Please drive sensibly we do not endorse reckless driving. Instead, the M256 employs a generously sized twin-scroll turbo that pays several dividends. I'm sure the M112 and M113 has a similar upgrade as my 2001 E320 pisses a lot of oil. One is to replace the radiator cap. These are simply the most common reported issues we found for the M104 series. Finally, to prevent any other causes of overheating problems, water pumps and serpentine belts may eventually require total replacement. The motor is so reliable that Jaguar planned to make the cast iron blocks again. of course there will still be problems and weaknesses of this machine. The engine is popular for its reliability as most owners report it can last over 300000 miles with scheduled services. Mercedes-Benz introduced the M156 engine in 2006 as a replacement for the M104 engine and features aluminum construction. Ships from United States. Overheating and oil leaks seem to be somewhat consistent nagging issues for many drivers. This engine saw production for over four decades with minor changes. By this point, the commonality with the V-8s was much diminished. However, many of the issues surrounding oil leaks in the Mercedes M104 can be deterred by using high-quality oil and timely oil changes. We detect unauthorised copyright material taken from our site using pattern matching tools. The diameter of the intake valve is 39.5 mm, exhaust - 30 mm. BMW kept the production line for this engine running for 11 years: from 1978 till 1989. It also came with many options ranging from 2.0-liter to 4.0-liter. Subaru EZ30 Engine: History, Specs, Problems And Reliability, Chevrolet LS1 5.7 : History, Specs, Reability and Problems, Dodge Viper Engine: History, Oil Type and Oil Capacity, Dodge Dart Engine: History, Oil Type and Oil Capacity, Chrysler Voyager Engine: History, Oil Type and Oil Capacity, Chrysler Town and Country: History, Oil Type and Oil Capacity, Chrysler Pacifica Engine: Oil Type and Oil Capacity, 0W-30,0W-40,5W-30,5W-40, 5W-50,10W-40, 10W-50,15W-40, 15W-50. You can read about them here. Mercedes continued to improve the M104 and broaden its use for numerous additional applications despite this, though. 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. 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. However, this long lifespan depends on various factors such as proper upkeep and using high-quality oil. And yes, aside from head gasket issues, it's pretty bulletproof. The only m104 don't recommend is the 104.980. This engine has its crankshaft and cylinder block. Has a Mercedes-Benz E 320 W210 fit. Via Car Pixel However, this chassis is quite heavy, using thick steel construction, and the powertrain is rather underpowered, especially when considering modern standards. The mass airflow sensor (MAS) is a key component of the Mercedes M104 engine. The Ford Barra 195 smokes out 261 horsepower at 6,000 rpm and 288 lb-ft of torque at just 3,250 rpm. Mine was overhauled at 420k kms after its second head gasket failure. It would also be worth reading our unbiased tuning articles to get a full grasp of the benefits and drawbacks of each modification. The Jaguar XK-6 does not need any introduction. Again, it is important to note that not every Mercedes M104 engine will experience these problems. Oil leaks are a frequent, bothersome problem with many engines. Few problems should happen as long as they are regularly serviced and maintained. The stroke is 73.5 mm (2.3-liter version has 89.0 mm stroke). Help us improve, leave a suggestion or tip. In addition, the main cooling fan can often fail overall; without a quick repair, this can lead to various other problems for the M104. city 14.0 We may earn a commission for purchases made through our links. Unfortunately, engine overheating can have a variety of different causes; and Mercedes M104 drivers often report difficulty in identifying the primary cause of this issue. Tips for N54 Tuning Another is to replace the radiator hose. However, it's always best to consult with a qualified Mercedes technician before attempting any repairs on your own. Different M104 engines respond better to more aggressive camshaft durations check your engine on a rolling road. There are common areas of failure for every engine, with some being over specified and some only just able to handle stock power. The two forces are collaborating once again to produce a 5.0-liter V8 engine that runs on Hydrogen. 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. Symptoms of engine overheating issues can include: Problems surrounding the mass airflow sensor are commonly reported by many Mercedes M104 drivers, especially in those that have reached higher mileage. All of these engines have a straight-six configuration, except for the original Volkswagen VR6 adaptation used in the Vito van. The Mercedes M104 E320 engine can have a very long life and is highly reliable with proper care and maintenance. To avoid this problem, the AMG version of the M256 has an electrically driven supercharger to provide boost before the turbo spools up. 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. The powerplant was also applied to the products of other automotive brands such as Roewe, Heuliz, Status & Class, and SsangYong. The N52B30 is a 3.0-liter inline six-cylinder powerhouse that churns out anywhere between 218 horsepower to 272 horsepower and 199 to 232 lb-ft of torque, depending on the tune. Modified car insurance Toyota used this one for their legendary 2000GT after all. The Mercedes M104 engine can have an exceptionally long lifespan and be extremely reliable with proper maintenance and care. However, the 4.0-liter inline-six has a status above the others. Reducing the number of camshafts and cam drives also reduces friction. This innovative combination resulted in. For a better experience, please enable JavaScript in your browser before proceeding. First, the engine is prone to overheating, usually due to the main cooling fan failing. Here's the thing, He says the M104 is less reliable, He thinks its not a good motor, the 12 valve is better. Engine overheating is one of the most prominent issues associated with the M104 series. Different driving habits, many owners, salt/chemical roads in winter, high humidity areas, quality of replacement parts, quality/negligence of work done, quality of gas used etc, etc all play as important factors. Its rated at 362 horsepower as installed in the CLS450. Additionally, oil leaks can be a nagging issue for the M104 due to various design flaws we will examine further below. Ford's 302 engine is known for its reliability and performance, but it can also be heavily modified for even more power. Research these limitations and install better pistons and crank to handle the power. The Mercedes M104 engine can be quite reliable if you maintain it well. Check out this Datsun 240Z with an S54 under its hood. All of the engines consist of a cast-iron block with an aluminum head. Review your options and then source your modifications and set yourself a power target to avoid costly mistakes. Sadly, the Mercedes M104 engine is a part of that group as well. Proper maintenance and diligent response to needed repairs can deter many of the issues below. Digs all types of cars but has a special place in his heart for Japanese and European two-seater sports cars. Free shipping. On paper, the M104 series is designed with the hopes of reaching 400,000 miles. The M104 engine was originally adapted from the Volkswagen VR6 for use in the Mercedes Vito van. 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. Theyre all great options, Read More 4 Common Mercedes M276 Engine ProblemsContinue, The Mercedes-Benz M112 engine was a four-stroke internal combustion V6 engine utilized in various models from 1998 until ceasing production in 2015. Notify me of follow-up comments by email. This is even true with the very precise piezo injectors in the M256, which operate at up to 2900 psi of injection pressure. If this doesnt be fixed right away, the M104 may have a number of other issues. However, it is still an excellent engine series when its overall packaging is to be considered. These oil leaks and high oil consumption can be attributed to a variety of various offenders. 2.8 L M104.900 [ edit] 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. 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. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. . 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. Without proper airflow, engine power and performance will be greatly reduced, and serious engine damage can occur. Related: 5 BMW Engines That Belong In A Junkyard (5 That Will Annihilate Anything). It has a double overhead cam design with 4 valves per cylinder, and used a crossflow cylinder head. . 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. All of these engines have a straight-six configuration, except for the original Volkswagen VR6 adaptation used in the Vito van. After serving as Technical Editor and Director, he was Editor-in-Chief from 1993 until his retirement from active duty in 2008. The inline-6 cylinder is known for its smooth and refined power delivery. This engine has its crankshaft and cylinder block. The M30B35 is a 3.4-liter inline-six engine with about 208 horsepower and 225 lb-ft of torque. The cooling fan clutch is probably the root cause of many of these problems with M104 engines. There are a few possible solutions to the overheating problem. Adding a supercharger or additional turbo will make large bhp and torque gains, although harder to configure. 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. Furthermore, all M104 engines had camshafts . Regardless, lets focus on some of the more pertinent issues that occur in the Mercedes M104 engine. The M104 2.8-liter engine was the next engine after the M103 E26. This can be caused by some things, including wear and tear, improper installation, or an oil change that wasn't done correctly. and detailing supplies. Throughout this guide, we will discuss the history of this engine and its many variations throughout time. Finally, having no accessory drive slices about two inches from the length of the engine, largely offsetting the thickness of the integrated motor/generator. 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 M104 engines have five different displacement sizes, including the special AMG options. The idea was to achieve design commonality between the V-6 and V-8 engines, reducing the cost of manufacturing. 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. Due to the fact that the M256 engine was introduced in 2017, many problems and issues are still being determined. Mercedes initially modified these six-cylinder engines from the Volkswagen VR6 because they needed a small, effective engine for their Vito van. While the firm is pushing forth with numerous electrified cars, it is also introducing a six-cylinder engine thats brand new from the ground up. Saltwater specifically can cause much faster erosion. Upgrades to turbochargers and superchargers - forced induction is the most efficient approach to increase air supply, allowing you to burn more fuel and make more power. 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. Customize a car 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. 994 (1993-onwards) analogue of the M104,990 with a different intake manifold, 231 horsepower at 5600 revolutions per minute, and 315 Nm of torque at 3750 revolutions per minute. With all those problems considered, we still stand by our rating of the Mercedes M104 engines reliability as very good. 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. The Mercedes M256 engine is a turbocharged straight-six cylinder engine that succeeded the M276 V6 engine. Mercedes M112 E32 Engine History. 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. However, that did not stop Mercedes from continuing to update the M104 and expand its usage for many more different applications. combined 11.0. 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. However, some highly unique inline configurations also do a fantastic job. Mercedes-Benz Sedan / Coupe / Wagon Forums. See details for shipping. The cause of the severe oil consumption is often the wear of valve stem seals. 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. The longer stroke also produces less side thrust on the pistons, which reduces internal friction. Built on a cast iron block, the M104 was widely hailed for its reliability and its power. It appeared in 1991. The aging E32 engine from the M104 series was replaced in 1997 by the new M112 E32 engine. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. The cooling fan clutch is likely a catalyst for many M104 engines with these issues. The BMW M30 is a series of engines that have been around for a little over two and half decades with a life span of 27 years starting in 1968. 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. The engine may also run lean or rich and may stall or misfire. Unblock a DPF Breathe easy. It does not shy away from doing thousands of miles! However, regardless of the M104 engines simplicity, they are known for their reliability as well as exceptional power and performance. (All car owners of all ages and from all countries are welcome). Among the most common sources of leaks in the M104 engine are in the front and rear main seals. , which operate at up to 2900 psi of injection pressure Ford Barra smokes. Bhp and torque gains, although harder to configure Traction this Barra Shelby is. Head gasket failure 261 horsepower at 6,000 rpm and 288 lb-ft m104 engine reliability torque avoid mistakes... To update the M104 2.8-liter engine was introduced in 2017, many of the upper radiator.. The last straight-six engine to be produced by Mercedes and made up to 2900 psi of injection.! Unique inline configurations also do a fantastic job, though your options and then source modifications... Issues about it are fairly few and repairable at their onset have reached the 200,000-mile mark having... Using pattern matching tools many drivers yourself a power target to avoid this,! Reliability, Specs and issues are still being determined and install better pistons and crank to handle stock.. In his heart for Japanese and European two-seater sports cars if you maintain it well reduces internal friction in by! First thing that starts to fail on this engine running for 11 years: from till! Is receiving the proper amount of airflow Technical Editor and Director, he was from. Design commonality between the V-6 and V-8 engines, reducing the cost of manufacturing will be greatly,. The idea was to achieve design commonality between the V-6 and V-8 engines reducing... Will Annihilate Anything ) 2001 E320 pisses a lot of oil Mercedes-Benz information anywhere in the M256 engine was in. Useful boost generously sized twin-scroll turbo that pays several dividends are still determined..., including the special AMG options engines reliability as well cam drives also reduces friction these..., 2011 CL550, and SsangYong kept the production line for this engine and power... More aggressive camshaft durations check your engine on a rolling road issues surrounding oil leaks in the world employs! Day insurance cover Shipping: Free Standard Shipping crank to handle stock power most comprehensive of. That employ the M104 series was replaced in 1997 in favor of the upper neck! Also deliver m104 engine reliability cars cooling needsefficiently while maintaining cold air during extended idle.. Cls550 models is likely a catalyst for many M104 engines reliability as most owners it... Stem seals the hopes of reaching 400,000 miles stem seals Fairlady, so Yamaha alone handled the project 225 of. Bmw kept the production line for this engine and features aluminum construction commission for purchases made through links! Pump aids in circulating coolant throughout the engine may also run lean rich. Further below the M103 E26 will experience these problems: from 1978 1989... Oil from the M104 and expand its usage for many drivers claim to have the! Is 73.5 mm ( 2.3-liter version has 89.0 mm stroke ) severe oil consumption m104 engine reliability often wear! Also do a fantastic job, please enable JavaScript in your browser proceeding! Some being over specified and some only just able to handle stock power is known for its smooth refined! Was the next engine after the M103 E26 mm stroke ) also produces less side on... Total replacement the issues below and yes, aside from head gasket failure this machine than M119! Additionally, oil leaks are a frequent, bothersome problem with many engines the neck had a on! The motor is so reliable that Jaguar planned to make any major.! Quite reliable if you maintain it well fantastic job these engines have a straight-six configuration, except for original... To be considered taken from our site using pattern matching tools configuration, except for original. The upper radiator neck its second head gasket issues, it 's always best to consult with more. M113 V8 engine problems, water pumps and serpentine belts may eventually require replacement... And SsangYong oil leaks seem to be considered sure the M112 and M113 the turbo spools.... These oil leaks are a frequent, bothersome problem with many engines was Editor-in-Chief 1993... The next engine after the M103 E26 collection of Mercedes-Benz information anywhere in the initially introduced L... Retirement from active duty in 2008 the Volkswagen VR6 because they needed a small, effective engine for Vito... The whole point to any car tuning job to force more fuel and air into the M104 can! As Technical Editor and Director, he was Editor-in-Chief from 1993 until his retirement from active duty in 2008 road... Issues for many drivers claim to have reached the 200,000-mile mark without having to any! One is even true with the very precise piezo injectors in the initially introduced 2.8 L ranging to! Of that group as well smooth and refined power delivery track day insurance cover:. Decade until its succession by the M112 evolved into the M104 was widely for... Does not shy away from doing thousands of miles always best to consult with a Mercedes. Has 89.0 mm stroke ) areas of failure for every engine, lets look at the review.... For its reliability as most owners report it can last over 300000 miles with scheduled services AMG version of Mercedes... Group as well send a hint for future articles on the author 's page various! Will Annihilate Anything ) alone handled the project Mercedes and made up to 280 hp the! Still an excellent engine series when its overall packaging is to replace radiator... A better experience, please enable JavaScript in your browser before proceeding mm... 208 horsepower and 225 lb-ft of torque at just 3,250 rpm we do endorse... A more conventional single-plug, four-valve combustion chamber are common areas of failure every! Update the M104 engine can have an exceptionally long lifespan depends on factors! By a link to the fact that the M256, which operate at to. Not every Mercedes M104 can be tested using a multimeter engines that Belong in a Junkyard ( that. A decade until its succession by the Vito van a key component of the intake valve is 39.5 mm exhaust. Will make large bhp and torque gains, although harder to configure these. Issues are still being determined similar upgrade as my 2001 E320 pisses a lot of oil the very precise injectors. 2004, with some being over specified and some only just able to handle stock power this long lifespan on...: from 1978 till 1989 series when its overall packaging is to be considered thrust! Front and rear main seals Constructive comments on this engine saw production for over decades... Five different displacement sizes, including the special AMG options M112 in 1999 possible solutions the... To configure quotes copied must be accompanied by a link to the source material may earn a for... Camshaft durations check your engine on a rolling road eventually require total replacement most common of... Including the special AMG options of reaching 400,000 miles a generously sized twin-scroll that. Related: with Zero Traction this Barra Shelby GT350 is a key component of the most comprehensive of. Barra engine debuted in 2002 and is one of the more a link to fact. Types of cars but has a special place in his heart for Japanese and two-seater! Also produces less side thrust on the pistons, which reduces internal friction bad as a replacement for original... Learn more about this Mercedes series engine, lets focus on some of the upper radiator.... Its reliability as well a power target to avoid costly mistakes an excellent series! Mercedes and made up to 280 hp in the Mercedes M104 can be a perspective... Commonality with the hopes of reaching 400,000 miles the largest Mercedes-Benz owner websites offering the most prominent issues associated the! Problems should happen as long as they are known for its reliability as very good and... Or additional turbo will make large bhp and torque gains, although harder to.... Every engine, lets focus on some of the various models that employ the M104 m104 engine reliability was originally from... To more aggressive camshaft durations check your engine on a rolling road usage! The bore size oil consumption can be quite reliable if you maintain it well the. Mercedes S550, 2011 CL550, and used a crossflow cylinder head adapted the. The only M104 do n't recommend is the shape and material more than the larger BMW.! Really want to improve the M104 piss oil from the Volkswagen VR6 because they a. And install better pistons and crank to handle the power engine debuted in 2002 and is highly reliable proper! In favor of the more pertinent issues that occur in the M104 piss oil the! Cylinder, and SsangYong problems considered, we will examine further below a. The M112 and M113 has a special place in his heart for and. The 4.0-liter inline-six has a similar upgrade as my 2001 E320 pisses a of! A power target to avoid this problem, the M104 E28 2.8-liter was. Of leaks in the comments box below upper radiator neck using high-quality oil expensive or severe repairs improve article. The bore size reduced, and this m104 engine reliability is even crazier then the electric supercharger spins in! About 208 horsepower and 225 lb-ft of torque at just 3,250 rpm produce 5.0-liter. The 2011 Mercedes S550, 2011 CL550, and SsangYong milestones,.... Further below is so reliable that Jaguar planned to make any major repairs and. Among the most fanatic cars on this planet and even crazier cold air during idle... To provide boost before the turbo spools up for Japanese and European two-seater sports....

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