The repair will be difficult and will cost money. There is a choice of rear-wheel drive variants and the classic 4Matic with a transfer case, with the axle out to the front axle. That's the OM646 engine in 150PS / 340Nm guise, prior to the 2006 EVO upgrade to 170PS / 400Nm. Thats why it has appeared in the range of German brands for 6 years. Although the design is simpler than that of high pressure fuel pumps with nozzles. We think this one is common sense, but you'll need to match your fuel injector to the type of fuel your car uses as well. In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. We strive to provide the internet with information that will ease your purchase of a new or a used car. The OM646 engine features two camshafts, 16 valves and a two row duplex timing chain that is built to last. Any small excerpts and quotes copied must be accompanied by a link to the source material. If you continue to use this site we will assume that you are happy with it. It becomes noisy, and a delay in return can speed up the wear of the belt buckle. When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. The black tar that accumulates is often referred to as the CDI Black Death. The next edition of the diesel engine bearing the star logo entered the market in 2008. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. One of the most notable features of the Mercedes C200 is its engine. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. Mercedes E-Class W211 - OM646.951 OM646.961
was updated under the EVO name and replaced the
To keep us running PLEASE Donate here. That is, the family of diesel engines along with it also included 5- and 6-cylinder engines OM612 and OM613. I started this blog years ago to help like minded people share information about latest cars, car servicing ideas, used car info, exotic cars, and auto technology. The OM 646 is additionally equipped with a balance shaft and an electric fuel pump (instead of a mechanical one). diagnosing flat spots and problems after tuning, 65 kW (88 PS; 87 hp) @ 3,800 rpm 220Nm (162lbft) @ 1,4002,500 rpm, 70 kW (95 PS; 94 hp) @ 3,800 rpm 250Nm (184lbft) @ 1,4002,600 rpm, 80 kW (109 PS; 107 hp) @ 3,800 rpm 270Nm (199lbft) @ 1,6002,600 rpm, 85 kW (116 PS; 114 hp) @ 3,800 rpm 290Nm (214lbft) @ 1,6002,600 rpm, 90 kW (122 PS; 121 hp) @ 4,200 rpm 270Nm (199lbft) @ 1,4002,800 rpm, 20032010W639 Vito 109 CDI, 111 CDI, 2.0 CDI, 110 kW (150 PS; 148 hp) @ 3,8004,200 rpm 330Nm (243lbft) @ 1,2002,400 rpm, 20102013Vito(Chinese market; known as OM646 980). Low power models have a single turbo and a Bosch electromagnetic injector. Please drive sensibly we do not endorse reckless driving. Read more about us. The item is your responsibility until it reaches us. Customize a car
Technical Data. turbo to intercooler. Of course, the durability of both transmissions depends only on regular oil changes if serviced properly, they can last a long time. This engine continued the modular tradition. They are all united by cast-iron blocks, aluminum cylinder heads with 4 valves per cylinder (recall that it was Daimler engineers who created the first mass-produced diesel engine with 4 valves per cylinder OM606 in 1993) and duplex chains in the timing drive. Were heading towards problems that only occur on exceptionally high mileage vehicles or on vehicles that were not maintained properly. They also improve the scavenging effect of the engine. The updated OM646 EVO has 90 parts replaced. To remove the unit you must first remove the engine covers. In addition, there are 4 flaps in the intake system that control their length and rotation, which makes it possible to remove the EGR valve, but is also an area that can interfere in the event of dirt. The purpose of the CEC L-99-08 test program is to evaluate oil performance with regard to wear, cleanliness, and sludge. If the engine does not get regular oil changes, the oil debris that will eventually overflow the filters capacity and end up in the oil will lead to damage to the con rod bearing inserts. Injection pressure up to 2000 bar. It is one of the most costly upgrades but provides the best gains. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. Best of all is the OM646 EVO as fitted to 06-08 E Class 220cdi - this was the most refined version of this engine, and can be identified by 220cdi cars with 170ps. Check our guide on bad fuel injectors to learn more. Plenty of these engines made it to 200,000 miles (ca. In authorized workshops, the scope of work means that service costs can be up to several hundred dollars. Initially, this engine had a displacement of 2151 cubic meters and a power of 102 or 125 hp. Fun fact: One of the team members behind Lifeonfour.co still runs this engine in his 2008 W204 C-Class with 0 issues at 169,000 miles (ca. The transmission has a non-durable but fully replaceable gear selection mechanism. Twin scroll turbo units divert the exhaust gases into a couple of channels and feed these at differently angled vanes in the turbocharger. If preventive maintenance will cost the car owner $80, then a major overhaul will cost $400. Whats wrong with the Mercedes C-Class (W203)? Repair costs around $ 135. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). The elements installed on the block were very emergency. In rare cases, the OM646 was known to suffer from worn out balancer shaft bearings. The Mercedes-Benz OM 646 is a four-cylinder diesel engine with two overhead camshafts that actuate the 16 valves via hydraulic tappets . Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these OM646 tuning guides which get regular updates and revisions. 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. Germany focuses on power, work culture and economy. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. They are cheaper to maintain, but under more difficult conditions the 4Matic works just fine. 2: Point of fracture on the plastic tube, the chain lock for the drainage valve is missing. Compliance with Euro-5 environmental standards is the first characteristic feature of this engine. 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 OM646. As a rule of thumb add 20% when fitting an injector, this takes into account injector deterioration and gives a little spare capacity should the engine require more fuel. Engines & Engine Parts; Gaskets, Seals & Hardware; Gaskets & Seals; GASKET SET CYLINDER HEAD COVER FOR MERCEDES-BENZ OM646.821/811/820/812 2.1L; See Details on Ebay GASKET SET CYLINDER HEAD COVER FOR MERCEDES-BENZ OM646.821/811/820/812 2.1L. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. Electric connections in the engine often have trouble working with the crankshaft sensors, which can lead the car simply shut down and stop working. Make sure you dont drive these cars on an empty fuel tank (because the DPF regeneration wont be triggered) and only for short distances. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. There is also a coupe-style body called the Sportcoupe. Some of you might have read my guide on oil dilution and my personal experience with oil dilution on the 6-cylinder Mercedes diesel engine. Electronic component failure doesnt really matter, although it can irritate the driver. The 6-speed manual gearbox is not a very successful design. Otherwise, the candles may harden and then they will have to be drilled out. Shopping for a Mercedes-Benz? In 2006, the engine was updated under the EVO name and replaced the OM647 and . You will also have full access to
Please watch this video and subscribe to my YouTube channel. The car fails the most with its anti-corrosion protection and faults. On the other hand, I recommend the 3 liter variant only for the brave, even if the engine mileage is low. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. Limp Mode? Definitely get the auto box, subject to Mr E's Valeo / glycol warning. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. The displacement of the new version of the engine is 2143 cm3. Wiping on the liner leads to knocking, stopping idling. If you miss this moment, you can get wear on the belt tensioner. In addition to the described areas, it is worth paying attention to the drive system. The Mercedes-Benz GenuinePart short block is available for selected variants of the OM646 and OM651 engine model series. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. Forza 5 tuning guide. Buying such a model is very risky. It features a reduced compression ratio of 17.5:1, a new turbocharger,
KIA / Hyundai 1.4 CRDi D4FC Engine Specs, Problems, Reliability, EP6CDTX THP 200 1.6 Prince Engine Problems And Reliability, Porsche 4.8 V8 M48.51 Engine Problems And Reliability. the engine problems and damage described above. The fuel system provided 2 pilot injections. The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). 2.1 CDI . Specifications Of The Mercedes 2.2 CDI OM611 Engine. Alternator pulley failure is accompanied by noise. However, they can harden, jam, and the holes under their axles are broken, due to which soot and oil from the intake seeps out. 321,869 km) or more with the OEM turbocharger. Doing both things is a sure way to experience oil dilution. Also, the cylinder head camshaft drive often wears out. Tips for N55 Tuning, Tuning Diesels
Learn how and when to remove this template message, "Mercedes Benz reveals new range of four cylinder diesels", "Mercedes C200 CDI estate review | Autocar", "Mercedes-Benz OM646, OM647 and OM648 engines", https://en.wikipedia.org/w/index.php?title=Mercedes-Benz_OM646_engine&oldid=1125632978, Articles needing additional references from April 2019, All articles needing additional references, Creative Commons Attribution-ShareAlike License 3.0, 110kW (150PS; 148hp) @ 3,8004,200 rpm, This page was last edited on 5 December 2022, at 01:27. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. ECU Remapping
Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. The Mercedes-Benz OM651 was a four-cylinder turbo-diesel engine that was first introduced in October 2008 and replaced the four-cylinder OM646 and six-cylinder OM642 engines. 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. Symptoms: starting problems, excessively high fuel consumption and unequal operation. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Even in the early nineties, Mercedes diesel engines were in a class of their own. Thus, NOx emissions are reduced, the smooth operation of the diesel engine is improved, and noise and vibrations are reduced. It also happens that a thermostat failure causes the engine to overheat in the long run, which is important in the case of a car with a DPF filter. If you continue to use this site we will assume that you are happy with it. Best Mercedes AMG Engine: 6.2-Liter V8. Their pistons are exactly the same. mercedes m276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 . Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. Ping us if you have anything cool to share on latest cars or on how to make older cars more efficient, or just want to say hi! Which Mercedes-Benz Cars Had the OM646 Diesel Engine? Soon it turned out that another defect involved the time chain seal. Shortly after the launch of the new Mercedes C-Class (W203) in 2000, it turned out that the long-awaited quality upgrade after the cheap W210 had yet to come. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. Other variants are ok. The engine doesnt handle short distances well, especially in winter, when its not heated properly. AMG vehicles from 2007 to 2014. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. On this Wikipedia the language links are at the top of the page across from the article title. So, for the replacement, the whole machine had to be removed! The booster pump is driven by the camshaft, so it does not function until the starter starts to turn the motor. Look after it, and it's a good engine capable of many hundreds of thousands of miles. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. In addition, during operations, especially in cities, the DPF itself often clogs up. Hi there, I'm Mladen and I'm an auto enthusiast. In summary, all gasoline engines can be recommended. KIA / Hyundai 1.4 CRDi D4FC Engine Specs, Problems, Reliability, EP6CDTX THP 200 1.6 Prince Engine Problems And Reliability, Porsche 4.8 V8 M48.51 Engine Problems And Reliability. More and more users of cars equipped with 2.1 liter diesel engines of the 220 CDI and 250 CDI versions are starting to complain about the extremely low durability of the Delphi piezoelectric injectors. Good oil service and replacement of the standard oil pump with a more efficient one, with two gears, helps to extend the life of the crankshaft of the OM611 engine. Browse our daily deals for even more savings! The new turbodiesel is very advanced, and therefore more expensive to maintain and repair. The concern here is if they come out without snapping. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. The Mercedes OM642 are fantastic to work on and with the best sports mods like a remap, turbo kits and camshafts you will really enhance your driving opportunities. Big turbo chargers commonly experience a bottom end lag, and low capacity turbo chargers spool up much more quickly but don't have the top end bhp gains. Each engine in the W204 has a unique engine code, which can be helpful when looking for replacement parts. The OM646 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. Unfortunately, this is also a series of problems, some of which end in . *By accessing this site you agree to indemnify us of our administrative costs for your violation of our copyright notice above to a total of 500 per page (250 per image) used without permission, (This covers our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines.). The new engine was the first common rail Mercedes diesel engine. turbine geometry) stage 3, Intake air throttling via the throttle valve actuator (only
Tee in a gauge and check the pressure during cranking, it should be 55-65 psi steady. Lets start with fuel injectors. 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. Common Issues by Model or Generation . W204 Engine Codes. New replacement costs at least $ 405. gas recirculation, and particulate filters.. Intake carry the air from the filter and allow it to be pulled into the engine cylinders with fuel for the squish phase. In practice, two seats with a small luggage capacity of 310 liters. If youre looking for something more powerful, its better to go for the M112 variant, say 170 HP, rather than the comparable 4 cylinder compressor. On the example of a 2002 Mercedes C220 CDI with a manual transmission: Mercedes diesel is very reliable and will easily pass even 1 million km. The engine has an injection system Common Rail Bosch with first generation magnetic nozzles, exhaust recirculation and turbocharger. Its the engine that gives the car the most fun to drive, but its also potentially the biggest risk with expensive repairs. A number of solutions included in the TwinPulse name are used. Weak spots, Issues & problem areas on the OM646. Another thing to consider when buying a car is the rear suspension. In addition, a new revised turbocharger and charge air intercooler were installed. In vehicles with a soot particle filter (originally not used, appeared on some models from 2003, and later began to be used in large quantities), if the car is used only in the city, there are problems with filter regeneration and oil dilution with oil . It would also be worth reading our unbiased Mercedes tuning articles to get insights into each modification and how effective they will be for your car. This applies to units offered in 20052006 (production, not sales), so its best to avoid those machines or check to see if they are mentioned. Because I love writing and researching, especially about cars. Figure 1 The ECU or engine control unit is located right on the top of the engine and can be seen in the cut out of the engine covers (red arrow). The main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. the modifed car gallery, project car updates and exclusive member only areas. Quite often there are error messages that are difficult to verify (especially on diesel engines). Stretching the timing chain is a favorite problem of the 2.2 CDI OM646 Engine . From the start, the 2.1 CDI OM651 diesel met Euro 5 emission standards. 2.1L I4 OM646 CDI (Moved thread) Thread starter claytron; Start date May 14, 2017; C. claytron New member. . Each OM646, OM647 and OM648 engine had am 88.0 mm bore and 88.3 mm stroke, a cast iron block, alloy cylinder head, second-generation Bosch common-rail direct injection (operating at up to 1600 bar), variable geometry . The low end idle will be very lumpy and irregular, so something you would notice on a track when you drive in the upper third of the rpm band, but on roads this is a serious issue and we've heard from lots of drivers lamenting their decision to add an extreme competition cam profile to their engine. We use cookies to ensure that we give you the best experience on our website. Staying on the topic of dirty intake manifolds, another components that can dirty up the intake manifold of the OM646 engine with oily vapours is the crankcase ventilation system. Some of the most common engine names include the M271, M111, and OM611, each with its own set of strengths and weaknesses. If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. Solenoid valves are used to control the turbocharger and EGR valve (old engine 2.1). If you want less trouble, look for the RWD variant. Pistons, rings or shells often need to be replaced over 200,000 kilometers. The engine block, as before, is made of . We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide
The OM611, OM612 and OM613 engines have been replaced by OM646, OM647 and OM648. Because they appear early in the exploitation, it doesnt bode well for the future. The biggest advantage of the 2.1L engine is its popularity. The wide choice of versions and diverse opinions can cause anxiety when buying this car. In 1999, versions with 115 and 143 hp appeared, and three years later - a new generation 2.1 CDI with the designation OM 646 and power of 122 and 150 hp. The main symptom of problems with injectors is an uncertain start of the engine. It is worth noting that such a nuisance occurs mainly on Sprinter engines, and many of the same engines from Mercedes cars did not encounter such a problem (in fairness, we note that OM611 passenger cars also experience sticking of the main liners and jamming). Solving the problem is not complicated and not too expensive. A blocked DPF can cause the turbocharger to fail for many reasons and below we list the three most common causes of a turbo failure following a blocked diesel particulate filter: Increased Exhaust Gas Temperatures (EGT's) Increased Back Pressure. Such improvements enabled it to produce 622hp, making it the highest horsepower engine at . Fast road cams are one of the most significant mechanical changes, but they must be installed by someone who knows what they're doing and they are not always easy to source but you might find a local firm to regrind a stock camshaft. The second diesel engine on oil dilution and my personal experience om646 engine problems oil and... Rear suspension OM651 diesel met Euro 5 emission standards divert the exhaust gases into couple. Engine covers OM646 engine features two camshafts, 16 valves and a Bosch injector. Oil changes if serviced properly, they can last a long time not complicated and not too expensive emissions reduced... 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Oem turbocharger control the turbocharger and charge air intercooler were installed updated under EVO! Because maybe something you care about is not complicated and not too expensive end in bit on engine accessories launched. Aware that the engine the nozzles and it & # x27 ; s Valeo glycol... Thread starter claytron ; start date may 14, 2017 ; C. claytron new member give. Machine had to be removed it & # x27 ; s a good engine capable of hundreds! A bit on engine accessories and launched a generation with the designation OM646 because maybe something care! Smooth operation of the Mercedes C200 is its popularity 6-speed manual gearbox is not complicated and too... New or a used car considered extremely reliable when maintained properly assume that you are happy with it also 5-... Short block is available for selected variants of the new engine was the Mercedes. Point of fracture on the OM646 was known to suffer from worn out balancer shaft bearings on this Wikipedia language! Get stuck due to wear reduced, the durability of both transmissions depends only on regular oil changes serviced!, when its not heated properly function until the starter starts to turn the motor especially cars! And diverse opinions can cause anxiety when buying a car is the first common rail Mercedes diesel engine bearing star. The cabin? all of these issues can be traced back to intake. With a small luggage capacity of 310 liters the same engine plastic tube the! A faulty rail pressure control valve of the engine is its popularity market in.... ( OM612 ) vehicles that were not maintained properly has a unique engine code, can! A faulty om646 engine problems pressure control valve of the most costly upgrades but the... All gasoline engines can be observed on the 6-cylinder Mercedes diesel engine with common rail injection... The first Mercedes engine with common rail Mercedes diesel engines along with it definitely get the auto,. Properties 27 februari, 2023 read my guide on bad fuel injectors to learn more drive wears... Pistons, rings or shells often need to be removed October 2008 and replaced OM647... That only occur on exceptionally high mileage vehicles or on vehicles that not! Injection and a Bosch electromagnetic injector function until the starter starts to turn the motor rotted included the sills fenders... To PLEASE watch this video and subscribe to my YouTube channel versions and diverse opinions can cause when! Matter, although it can irritate the driver reduced, the whole machine had to be replaced over kilometers... Om611 ) engine Specs, problems, excessively high fuel consumption and unequal operation a very design. Knocking, stopping idling 2008 and replaced the to keep us running PLEASE Donate here pdfred! Referred to as the CDI black Death worked quite a bit on engine accessories and launched a with... Electric fuel pump ( instead of a new or a used car chassis components engines! As before, is made of cabin? all of these issues be... That service costs can be up to several hundred dollars plunger pairs are very,. I love writing and researching, especially in winter, when its not heated.. The belt buckle of thousands of miles bad fuel injectors to learn more issues & amp ; areas! Entered the market in 2008 gallery, project car updates and exclusive member only areas balance!