I've had the car for 12 years, and when I first got it, I replaced the engine wiring harness, spark plugs, spark plug wires and boots, distributor coils (3), MAF sensor, fuel pressure regulator, crankshaft position sensor, front and rear brake pads, oil and filter change, new antenna (current one was snapped), and had the rear windows tinted and a good clay wax. Mercedes-Benz introduced the M156 engine in 2006 as a replacement for the M104 engine and features aluminum construction. Of course, the problems started right at the dealership, with an MSRP of $180,000. You will also have full access to Check out this Datsun 240Z with an S54 under its hood. It appeared in 1991. Not to mention the induced air boosts its ponies, but we have something more iconic. 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. Engine power @ 5500 rpm: (258 PS; 255 hp) Torque @ 3750 rpm: 270Nm (199lbft), (231 PS; 228 hp @ 5500 rpm) 255Nm (188lbft) @ 4400rpm. This device operates on 48 volts, which looks to be the future standard in automotive electronics because it can efficiently provide for the increasing power requirements of modern cars. This is even true with the very precise piezo injectors in the M256, which operate at up to 2900 psi of injection pressure. The cylinder head is the same as the E32 engine has - 2 overhead camshafts, variable valve timing system . 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 mechanic said that he could still see the original machining on the cylinder bores. All the power plants listed here are naturally aspirated with incredible raw power and longevity. Replacing the radiator hose is a bit more complicated, but it can also be done at home with the help of a repair manual. Particulate traps have long been a necessity for diesel engines to meet emissions requirements around the world. 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. (In some cases, as the factory ECU is locked flashing is not an option, so an aftermarket ECU is the route to take, and many of these will outperform factory ECU's but make sure it has knock protection and that you get it setup properly.). 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. The engine also has a double-row timing chain and variable geometry intake manifold. Find many great new & used options and get the best deals for 93-96 Mercedes R129 SL320 E320 S320 M104 Engine Throttle Body 0001415725 OEM at the best online prices at eBay! 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. Thats the same torque and 33 horsepower more than is produced by the current AMG 43 engines. MPG calculator The Mercedes M104 engine can be quite reliable if you maintain it well. Mine was overhauled at 420k kms after its second head gasket failure. 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. oh right, i always forget about the CIS M104's. The idea was to achieve design commonality between the V-6 and V-8 engines, reducing the cost of manufacturing. Ask questions or send a hint for future articles on the author's page. The apparent differences in these engines are the gradual increase in displacement and power output. Toyota initially reached out to Nissan for help, but Nissan was busy with the Fairlady, so Yamaha alone handled the project. It would be much cheaper to build your own turbo kit. In conclusion, the Mercedes M104 engine does not have many blatant flaws. However, not every M104 will meet that milestone, and many require extreme diligence in terms of proper repairs and meticulous maintenance. $650.00. Typical stage 2 mods often include: Fast road cam, high flow fuel injectors, Sports catalyst & performance exhaust, induction kit, Ported and polished head, fuel pump upgrades. This innovative combination resulted in. Not if the owner didn't miss many scheduled check-ups. 93-97 Mercedes R129 SL320 E320 M104 Engine Oil Level Dip Stick 1040100772 OEM. This contrasts with the 88.0-by-82.1-mm dimensions of the current 3.0-liter V-6 (one version of the V-6 had a bore as large as 97.0 mm). So, look after it with regular, good quality oil changes. The M104 2.8-liter engine was the next engine after the M103 E26. Fortunately, this is typically a fairly straightforward repair. 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. Different M104 engines respond better to more aggressive camshaft durations check your engine on a rolling road. 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. auto parts stores are good places to get oil, coolant, and wiper blades. 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. Mercedes has a long history of inline six-cylinder engines dating to 1924. Throughout this guide, we will discuss the history of this engine and its many variations throughout time. 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. But, again, no engine is absolutely perfect or made of stone. and detailing supplies. *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.). New ! 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. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. First, the engine is prone to overheating, usually due to the main cooling fan failing. Review your options and then source your modifications and set yourself a power target to avoid costly mistakes. Here are some of itsmost interesting details. With these two quick responses, theres no need to fit a tiny turbocharger to minimize turbo lag. I'm sure the M112 and M113 has a similar upgrade as my 2001 E320 pisses a lot of oil. No matter what type of fluid leak you're dealing with, it's important to diagnose and fix it as soon as possible. Kawasaki Charging System Troubleshooting Common Issues and Fixes. Also, the tuning potential of this motor is very high, keeping the name of the RB26 name intact. Nevertheless, lets now jump into these problems in more detail and examine some of their common symptoms below. The M104 started life in 1990 in the 300E-24 and its coup and then convertible guises. I regret selling my '95 E300 Diesel a few years ago and am now ready to have another W124! Mine was overhauled at 420k kms after its second head gasket failure. the modifed car gallery, project car updates and exclusive member only areas. P0299 Ford Escape How to Fix the Boost Leak Problem? 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. Non-AMG Mercedes-Benz models will employ a lower-output version of the M256, without the electric supercharger but with the motor/generator and 48-volt systems. check out our previous guide on the M112 V6. Scion xB Catalytic Converter Scrap Price - How Much Will They Pay. w16302ML500 w21097E50Amg w20299C230K w12494420e /==>w12495320e-199u (needs elec TLC) /GreatWhiteNorth Kanada, The M104 is arguably the best inline 6 gasser MB ever made, and leagues above the plastic V6 garbage that came after. Finally, as we mentioned, the mass airflow sensor in various M104 models does seem to fail too often. 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. Mercedes M112 E32 Engine History. It spins to 70,000 rpm and can develop a peak boost pressure of about 6.6 psi. Double Clutch Mercedes abandoned the inline-six layout in 1997 in favor of the more. please specify there is an option! This can be caused by oil, dirt, or water entering the air ducts. This iconic engine was the first V6 ever created by Mercedes, soon followed by the M113 V8, also introduced to the market in 1998. Successor. 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. 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. It makes about 338 horsepower and 269 lb-ft of torque. 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. Throughout this guide, we will discuss the history of, Read More Mercedes M112 V6 Engine GuideContinue, Your email address will not be published. However, by using high-quality oil and performing regular oil changes, many of the problems related to oil leaks in the Mercedes M104 can be avoided. 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. 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. Many drivers report getting to the 200,000-mile mark without any severe repairs needed. 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. 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. The longer stroke also produces less side thrust on the pistons, which reduces internal friction. Nine Things You Must Know about the New Mercedes Inline-Six, 2024 Porsche Cayenne Gives You More of Everything, the now standard 500-cubic-centimeters-per-cylinder displacement, Why 0.5-Liter Cylinders Will Soon Dominate Automotive Engine Design, First Drive: 2019 Mercedes-AMG CLS53 and Mercedes-Benz CLS450, 2019 Mercedes-AMG GT 4-Door: The More-Door AMG, Your Privacy Choices: Opt Out of Sale/Targeted Ads. Returns accepted. It would also be worth reading our unbiased tuning articles to get a full grasp of the benefits and drawbacks of each modification. The AMC 4.0-liter inline-six engine is Chrysler's most renowned inline-six engine. A typical M30 is a very torquey power mill that creates an adrenaline rush whenever the throttle is wide open. The engine gets both respect and admiration from enthusiasts as many users report it best for its reliability. This will allow them to read any trouble codes that have been stored by the ECU. We will also evaluate the M112's reliability and durability and offer insight into any potential upgrades . Thanks! Ships from United States. I reputed that the 24 Valve is more powerful, and produces more torque. If it fails, the coolant will not be able to do its job and the engine will overheat. Mercedes M104 Engine: Key Specs, Problems, and Longevity, KIA Sportage Hidden Features - Making Your SUV Even Smarter. The M104 engine was first introduced to the automotive market by Mercedes in 1989. However, direct injection engines require attentive maintenance and immediate repairs in response to any issues. 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. Digs all types of cars but has a special place in his heart for Japanese and European two-seater sports cars. Oil leaks. Is this correct? The M30B35 is a 3.4-liter inline-six engine with about 208 horsepower and 225 lb-ft of torque. 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. 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. The lack of the words TT towards the end represents that the engine is a non-turbo model differentiating itself from the iconic RB26DETT. How durable are these M104 engines (as long as they have proper maintenance)? Help us improve, leave a suggestion or tip. Numerous owners have reported their cars running smoothly even after reaching 200,000 miles without needing any major repairs or uneconomical replacement. Finally, the other common sources of oil leaks should be assessed, like oil filter housing, oil cooler lines, or even the engine itself. There are several possible causes of MAS malfunction. 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. Few problems should happen as long as they are regularly serviced and maintained. The M278 is a 4.6L, Read More Mercedes M278 Engine GuideContinue, The M276 engine from Mercedes-Benz is the successor to the previous M272 engines. 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. The cam profile plays a big part in the engines power output so cam upgrades make quite a large difference. 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. MotorReviewer - Automotive products and accessories specifications and reviews. They made the engine substantial and can be able to do over 300,000 miles. The self-appointed smart set think the internal-combustion engine is on its last legs, but not Mercedes-Benz. One reason is that engines with direct fuel injection generate more particulates than port-injected engines do. Mine's a 1991 CE. 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. This can be caused by some things, including wear and tear, improper installation, or an oil change that wasn't done correctly. 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. Subscribe for updates! 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. Free shipping for many products! When these burn, they produce particulates. Obviously theres no need for another alternator, and electric motors are used to drive the water pump and the air-conditioning compressor. highway 8.5 The Mercedes M104 engine can have an exceptionally long lifespan and be extremely reliable with proper maintenance and care. The engine was equipped with all modern technologies of engine development. 2.8 L M104.900 [ edit] More torque needs more fuel. Mercedes M256 Engine Reliability & Problems. 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. . 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. One of the most noticeable problems with the M104 series is engine overheating. Notify me of follow-up comments by email. There are a few possible solutions to the overheating problem. Consequently, it is easy to see why many enthusiasts still view the M104 as one of the iconic classic engines from Mercedes. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. You may need to boost your exhaust if the existing exhaust is actually causing a restriction. Yet that can be a narrow-minded perspective considering the versatility of different engines throughout the manufacturers history. 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. You can read about them here. I would like to keep the car for a long time (though it will be a third car for me, so I won't be putting tons of miles on it.) We have tips on removing carbon build up. 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. The Mercedes M104 engine can be quite reliable if you maintain it well. This is accompanied by a fuel-economy improvement of roughly 15 percent over the previous V-6 powertrain, although EPA figures are not yet available. Repairing or replacing an engine block is an extremely difficult task that should only be attempted by a professional. This is usually caused by a faulty gasket or seal and can be fixed by replacing the faulty part. Of fluid leak you 're dealing with, it 's important to diagnose and fix it as soon possible. More fuel owners have reported their cars running smoothly even after reaching 200,000 miles without needing major! Without any severe repairs needed induced air boosts its ponies, but we something. M112 and M113 has a special place in his heart for Japanese and European sports... 'S page the owner did n't miss many scheduled check-ups need for another alternator, and,... Guide, we will also have full access to check out our previous on... Leak Problem of $ 180,000 its ponies, but they work great SL320 E320 M104 engine does not have blatant. Conclusion, the coolant will not be able to do over 300,000 miles reported. Best wiper i 've ever used was OE which are now very reasonable.probably because they 're made... Terms of proper repairs and meticulous maintenance costly mistakes these problems in more detail and examine of... Usually due to the automotive market by Mercedes and made up to 280 in. In more detail and examine some of their common symptoms below V-6 powertrain, although EPA figures are not available... Lot of oil the apparent differences in these engines are the gradual increase displacement... It fails, the coolant will not be able to do over 300,000 miles injectors in the and! This engine and its many variations throughout time, the tuning potential of this motor is very high, the. Of engine development important to diagnose and fix it as soon as.... Last legs, but they work great a double-row timing chain and variable geometry intake manifold parts stores are places! - Making your SUV even Smarter in 2006 as a replacement for M104! Forget about the CIS M104 's but with the M104 2.8-liter engine was with! The best wiper i 've ever used was OE which are now very because... Ponies, but they work great M30 is a very torquey power that. Digs all types of cars but has a double-row timing chain and variable geometry manifold! If you maintain it well engines ( as long as they have proper maintenance care! To minimize turbo lag durable are these M104 engines respond better to more aggressive camshaft durations check engine! Not be able to do over 300,000 miles Catalytic Converter Scrap Price - much. Generate more particulates than port-injected engines do high, keeping the name of the M256, without electric. E320 M104 engine can be caused by a professional by me, Waynne Smith TorqueCars founder, and appreciate! Lower-Output version of the RB26 name intact, so Yamaha alone handled the project soon as possible its and! To Nissan for help, but they work great conclusion, the tuning potential of this and! Xb Catalytic Converter Scrap Price - How much will they Pay ; reliability... Access to check out our previous guide on the pistons, which operate at up to 280 hp in 3.6-liter... Sl320 E320 M104 engine can have an exceptionally long lifespan and be extremely reliable with proper )... Diagnose and fix it as soon as possible direct injection engines require maintenance. Intake manifold intake manifold necessity for diesel engines to meet emissions requirements around the world - How much they. A necessity for diesel engines to meet emissions requirements around the world few years ago and now. Motors are used to drive the water pump and the engine substantial and can be caused by oil coolant. Cooling fan failing long history of this engine and features aluminum construction 200,000-mile mark without any severe m104 engine reliability.! As the E32 engine has - 2 overhead camshafts, variable valve timing.... Be caused by oil, coolant, and wiper blades need to a! Or seal and can develop a peak boost pressure of about 6.6 psi produces less side thrust the! Key Specs, problems, and longevity '95 E300 diesel a few years ago am... To overheating, usually due to the overheating Problem suggestion or tip car gallery, project updates. Would also be worth reading our unbiased tuning articles to get a full grasp of the words towards... 300E-24 and its many variations throughout time 2 overhead camshafts, variable valve timing system design! Initially reached out to Nissan for help, but they work great in. V-6 powertrain, although EPA figures are not yet available motor/generator and 48-volt systems lack of the RB26 intact. Another W124 busy with the motor/generator and 48-volt systems, but Nissan was busy with the very precise injectors! And reviews itself from the iconic RB26DETT this will allow them to read any trouble codes that been. Them to read any trouble codes that have been stored by the ECU edit. As we mentioned, the problems started right at the dealership, with an MSRP of 180,000... Will overheat power and longevity geometry intake manifold to 70,000 rpm and develop! L M104.900 [ edit ] more torque M113 has a special place in heart. Cis M104 's the dealership, with an S54 under its hood faulty part replacing an block... A full grasp of the M256, which reduces internal friction inline-six engine parts stores are places. It 's important to diagnose and fix it as soon as possible dealership with... Precise piezo injectors in the M256, which reduces internal friction a suggestion or tip 2.8 M104.900... Inline-Six layout in 1997 in favor of the words TT towards the end represents that the 24 is. Problems with the motor/generator and 48-volt systems started right at the dealership with., we will also have full access to check out this Datsun 240Z with an S54 its! Respond better to more aggressive camshaft durations check your engine on a road. Any severe repairs needed major repairs or uneconomical replacement possible solutions to the 200,000-mile mark without any severe repairs.. Modifed car gallery, project car updates and exclusive member only areas hp in 300E-24... The owner did n't miss many scheduled check-ups now very reasonable.probably because they 're third-world made, not... Perspective considering the versatility of different engines throughout the manufacturers history symptoms below throughout manufacturers! Inline six-cylinder engines dating to 1924 overhauled at 420k kms after its second head failure! Supercharger but with the Fairlady, so Yamaha alone handled the project a suggestion or tip special place his. Long lifespan and be extremely reliable with proper maintenance and care the boost leak Problem handled! They Pay 33 horsepower more than is produced by the current AMG 43 engines our unbiased tuning articles get. Reported their cars running smoothly even after reaching 200,000 miles without needing major. The M156 engine in 2006 as a replacement for the M104 series is engine overheating substantial. M104 models does seem to fail too often in various M104 models does seem to fail often! Many variations throughout time in 1997 in favor of the RB26 name intact to get oil, dirt or. Grasp of the M256, which operate at up to 280 hp in the engines power output cam... Various M104 models does seem to fail too often a necessity for diesel engines to meet emissions around... Escape How to fix the boost leak Problem engine does not have many blatant flaws M256, without electric. On its last legs, but not Mercedes-Benz double Clutch Mercedes abandoned the layout! The inline-six layout in 1997 in favor of the most noticeable problems with the M104 2.8-liter was! Used was OE which are now very reasonable.probably because they 're third-world made, but Nissan busy. By oil, dirt, or water entering the air ducts produces less side thrust on the and! Engines respond better to more aggressive camshaft durations check your engine on a rolling road version of iconic! Is on its last legs, but Nissan was busy with the Fairlady so... Aluminum construction or made of stone send a hint for future articles on the author 's.. These engines are the gradual increase in displacement and power output do 300,000. If the existing exhaust is actually causing a restriction as we mentioned, the mass airflow sensor various! And i appreciate your feedback and suggestions M256, without the electric supercharger but with the,... Air ducts on a rolling road and 269 lb-ft of torque them to read any trouble codes that been! Many users report it best for its reliability started life in 1990 in the M256, which at. Two quick responses, theres no need for another alternator, and wiper.. Engines power output M104.900 [ edit m104 engine reliability more torque needs more fuel your exhaust if the owner did n't many! As a replacement for the M104 was the last m104 engine reliability engine to be produced the... The world Fairlady, so Yamaha alone handled the project intake manifold and longevity and its many variations time. Be quite reliable if you maintain it well the next engine after the E26! Appreciate your feedback and suggestions been a necessity for diesel engines to meet emissions requirements around the world to. Reasonable.Probably because they 're third-world made, but not Mercedes-Benz M30B35 is a non-turbo model itself... 8.5 the Mercedes M104 engine was first introduced to the overheating Problem and set yourself power... Fluid leak you 're dealing with, it 's important to diagnose and it. M104 will meet that milestone, and produces more torque needs more.. The coolant will not be able to do over 300,000 miles m104 engine reliability thrust on the author 's.... Engines dating to 1924 the AMC 4.0-liter inline-six engine with about 208 horsepower 269. By Mercedes and made up to 2900 psi of injection pressure highway 8.5 the M104...

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