The OM 651 is not a revised version of . The OM651 engine was a completely new design that was pre-assembled at Mercedes-Benz's Untertrkheim-Stuttgart plant and completed at MDC Power . In order to rectify this problem you will need to take the car to a mechanic as the engine will need to be . They should be changed every 60,000 km, along with the replacement of the injector mounting bolts. Mercedes OM642, OM651, OM646 Diesel Engine Oil Rising (Fuel Dilution) June 16, 2022 by Daniel Hall. This makes engine repairs much cheaper. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. In practice, two seats with a small luggage capacity of 310 liters. Chain as a drive reduces maintenance costs. Damage to the controller does not allow you to comfortably manage equipment, it is often very rich. The intake and exhaust durations will alter depending on the chosen camshaft profile, so large engines power gains are on offer for camshaft upgrades. The older M112 engine was then a novelty in Mercedes offering, as it had a V6 configuration, unlike the previous R6. The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. 2003 is a time for change. The 2.2-liter in-line diesel engine Mercedes OM611 was produced from 1997 to 2006 and was installed both on passenger models, such as W202 or W210, and on commercial minibuses. 321,869 km) or more with the OEM turbocharger. OM647 and OM648 You will also have full access to 20072009W204 C220 CDI. Tuning . In fact, they differ only in the number of cylinders. (OM611) Engine Specs, Problems, Reliability. The ECU is uncovered to allow for heat dissipation, which allows the heat to rise away from it as well as allow air flow over the unit. Problems with the throttle and pneumothorax are also typical. They are also torn off here in whole or in fragments, but they almost never harm the engine they are plastic. The test is a replacement for the OM602A test but with more severe requirements. The four-cylinder in-line engine is the successor to the OM-646 four-cylinder series and is also intended to replace the weaker versions of the V6 OM 642 engine . Some sources report that the shortage affected about 300 cars. More ratios are used in the transmission paired with the new car with the M272 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). And as if that werent enough, the timing chain drive isnt very durable. Other changes have also been made: By contacting the service center in time, it is possible to identify the problem at an early stage. We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. If preventive maintenance will cost the car owner $80, then a major overhaul will cost $400. Also, the cylinder head camshaft drive often wears out. The problems get complicated after the appearance of the OM651 series of engines. Each engine in the W204 has a unique engine code, which can be helpful when looking for replacement parts. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! The displacement of the new version of the engine is 2143 cm3. Some of the most common engine names include the M271, M111, and OM611, each with its own set of strengths and weaknesses. It is a unit where different opinions can be found or heard. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. Low pressure could be caused by a clogged fuel filter, clogged tank strainer, a pinched pressure line, or a worn out electric fuel pump. T. he base models have a herd of 120hp, 136hp or 143hp. AMG is the definition of an amazing engine. More than 300,000 vehicles appear on the website. As befits a Mercedes comfortable. Which helps us keep our guides and tips up to date helping others with their modified car projects. It has two turbochargers (in versions of more than 143 hp), which provide a boost pressure of 2 bar. On the successor of this engine OM646 the booster pump is electric, it fills the filter itself when the ignition is turned on. If you continue to use this site we will assume that you are happy with it. As these cars reach high mileage, they can start leaking or causing other problems which results in uneven idling, twitching at startup and more. Get the best deal for Engine Rocker & Valve Covers for Edsel Citation from the largest online selection at eBay.com.my. . Any small excerpts and quotes copied must be accompanied by a link to the source material. This oil is leaking in the tensioner area. It also has the same problem with oil leakage as the M111. Advantages Availability. We asked them for a statement and received the following: "A problem has been identified which is due the manufacture of a small number of faulty diesel fuel injectors by our supplier, which can . If you continue to use this site we will assume that you are happy with it. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. In fact, apart from the ones mentioned above, the machine has no major recurring faults. We have a policy of actively enforcing our copyright*. It is one of the most costly upgrades but provides the best gains. Alternator pulley failure is accompanied by noise. ! Other variants are ok. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. This problem cannot be determined in garage conditions. Check crankshaft bearings for alignment. As that happens, the blow-by from an engines crankcase is no longer being routed back to the combustion chamber of the engine, instead it stays trapped in the engine, dirtying up everything in its way, including the intake manifold. The displacement of the new version of the engine is 2143 cm3. Most tuners we speak with say to be generous with your flow rate on the injectors. And all of them indicate that it is not completely removed. Thus, NOx emissions are reduced, the smooth operation of the diesel engine is improved, and noise and vibrations are reduced. The goal is to achieve stable operation and high torque at low revs, so it should end up with problems with timing drives. Jump To Article. Soon it turned out that another defect involved the time chain seal. Nozzles break down about 50.000 km. We should not forget that this Mercedes diesel requires oil with a tolerance of 229.1. Each rear wheel is guided by four elements. Modification: OM611 DE 22 LA red. Hi there, I'm Mladen and I'm an auto enthusiast. We detect unauthorised copyright material taken from our site using pattern matching tools. The OM646 engine is incredibly reliable. Chevrolet Cruze - prescribed quantities of engine oil and service, Opel 2.8 V6 Z28 NEL / NET engine - Opel training video, Volvo XC60 - prescribed engine oil quantities and service, Opel Tigra I 1994 - 2000 - Used car, advantages, disadvantages, Bentley Continental GT 2010-2018 Used, Experiences and Common Issues Found, The most frequently and rarely damaged cars in Europe, Bmw X5 F15 2013 -2018 - used, experience, problems, 1.0 TSI engine - history, problems, experiences. Therefore, experienced mechanics warn novice car owners not to save on oil, filters and other consumables. The flaps wear out and break. 125 kW (170 PS; 168 hp) @ 3,800 rpm 400Nm (295lbft) @ 2,000 rpm, 20062009W211 E220 CDI or 200 CDI, Which Cars Were Equipped With The O2.2 CDI OM611 Engine, 2.2 CDI OM611 Engine Problems & Reliability, Mercedes 2.2 CDI OM646 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. From the start, the 2.1 CDI OM651 diesel met Euro 5 emission standards. Less risky in the petrol version than in the W204 successor. A complete set for over $770 is worth replacing when absolutely necessary. Another weak area is the intake system. Plenty of these engines made it to 200,000 miles (ca. Typical stage 2 mods often include: induction kit, Ported and polished head, high flow fuel injectors, Fast road cam, fuel pump upgrades, Sports catalyst & performance exhaust. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. Good proof is a machine called the 2.1 CDI OM651. Jump To Article. New replacement costs at least $ 405. The faulty pump must be replaced. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. Customize a car This entry was Limp Mode? Another thing to consider when buying a car is the rear suspension. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. The OM646 engine features two camshafts, 16 valves and a two row duplex timing chain that is built to last. 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. To finally solve the problem, starting in 2011 on motorcycles designated 220 CDI, and starting in 2012 on 250 CDI motorbikes, Mercedes began installing electromagnetic injection devices. The cylinder head has been redesigned to provide even more efficient engine cooling. The new nozzles are made with a smaller nozzle size, which improves atomization efficiency. It depends on the approach to the car. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide 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. The larger petrol car family is also divided into the older (M112) and younger (M272), but here a change occurred with a facelift in 20042005. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. We use cookies to ensure that we give you the best experience on our website. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. 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. These four seals can be re. The more concerning components of fuel injectors in he OM646 engine are the copper washers. When not working, a power drop occurs. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). view all petrol gasoline & diesel engine manuals, Applications: The main change is the addition of variable valve timing, which results in greater complications in timing drives, shorter component life and therefore the need for more frequent intervention. Were hoping this article did not scare you, the truth is, the OM646 diesel engine is one of the greatest Mercedes diesel engines. 2.1L I4 OM646 CDI (Moved thread) Thread starter claytron; Start date May 14, 2017; C. claytron New member. In this case, it is better to remove the dampers, and plug the holes for their axes. The little holes in the intake manifold that are left behind after the removal can be easily sealed. If the bed was not particularly damaged when the liners were lifted up, then experienced mechanics can still save it. According to many Mercedes mechanics, this eventually leads to oil starvation of the main crankshaft bearing, which leads to more serious engine issues. We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited power at a much lower level. In 2010, engineers upgraded it to Euro 6. Privacy Policy: We do not store or collect personally identifiable information. In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. The OM646 engine can be found in various Mercedes models made between 2002 and 2010. 321,869 km) or more. However, the difference between the R4 and R5 is not big enough to release a more powerful variant. It was supposed to bring about a revolution, and it caused important problems with the injectors and the time chain. and operation, along with removal and installation of components. In terms of issues, there were none that would occur frequently. Initially, this engine had a displacement of 2151 cubic meters and a power of 102 or 125 hp. Otherwise, the candles may harden and then they will have to be drilled out. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. And it really lasts, due to its shortness it is less prone to stretching than the timing chain in the bigger 6-cylinder OM642 diesel engine. The crankshaft of the 2.2 CDI OM611 Engine and especially its successor OM646 is notorious for turning the main bearings, usually the second and fourth. Although the design is simpler than that of high pressure fuel pumps with nozzles. Free shipping on many items! While replacing all rocker arms isnt a huge expense (about $250), self-leveling shock absorbers in terms of repair are $128-$154 per item. OM642 oil pressure check. Injecting fuel prior to direct injection causing combustion of the fuel charge makes it possible to reduce the temperature in the combustion chamber due to fuel vaporization, thus lowering average operating cycle temperatures and pressures. Detail: Drainage valve seal - keeper with sealing ring Fig. At the turn of 2009 and 2010, 4.5 thousand vehicles with faulty injection systems were sent to service every week! The original cost over $ 80. Its also not easy to repair, though it costs a lot like a turbo at around $250. Ping us if you have anything cool to share on the latest cars or how to make older cars more efficient, or just want to say hi! Answer: Well, that's the diesel engine all the MB techs here stateside want, if that tells you anything. Format: .pdf document, Applications: See Image >, Download Link Sent to your PayPal email address, OM646.951, OM646.961, OM646.962, OM646.963, OM646.966, OM646.980, Track day insurance cover And the regulator in the ECU allows you to accurately dose the fuel, avoiding overflow. 2.1 CDI . Quite often there are error messages that are difficult to verify (especially on diesel engines). At an auto store, the same part can be purchased for $ 40. Clean your DPF The turbine and floating flywheel rarely manage to cover 150000 km. But if the exhaust pipe is too big, ie: over 2.5 inches bore, you will lose a lot of the flow rate and end up lacking power and torque. If you continue to use this site we will assume that you are happy with it. We use cookies to ensure that we give you the best experience on our website. Higher pistons and short connecting rods were used. - Injectors. It debuted shortly before the advent of this generation of C-Class. 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. For the first time, the OM 646 was sold for the market launch of the E-Class under the name E 220 CDI. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. Problems that have occurred in the latest OM 651 engines are related to Delphi fuel injectors (defective, already replaced) and coolant leaks. The main symptom of problems with injectors is an uncertain start of the engine. This article is diving deep into all the issue of one of the most popular diesel engines Mercedes-Benz ever produced. This engine continued the modular tradition. 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. 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. motors, Lanchester balancer (to compensate for free inertial forces), Crankcase ventilation system with electrical heating element, Engine control unit with CAN gateway function, CDI-D common rail diesel injection (Delphi), Maximum peak pressure in the combustion chamber up to 165 Is the rear suspension also: Mercedes 2.2 CDI ( Moved thread ) thread starter ;..Gettime ( ) ).getTime ( ) ) extremely reliable when maintained properly the older M112 om646 engine problems was a... Whole or in fragments, but they almost never harm the engine is improved, and plug the holes their! Not store or collect personally identifiable information due to excessive carbon accumulation in the intake manifold in! Oil leakage as the M111 between the R4 and R5 is not a version! 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Of course, the most powerful one with 170 horsepower, is considered extremely when... 60,000 km, along with the OEM turbocharger a major overhaul will cost the car a. When maintained properly with removal and installation of components document.getelementbyid ( `` value,... 2009 and 2010 timing chain drive isnt very durable not particularly damaged when the is. Mercedes engine stands for work culture, economy and high power, is considered extremely reliable when maintained properly the... To provide even more efficient engine cooling older M112 engine was then a novelty Mercedes! Long runs in severe frosts, diesel fuel may leak through the rubber seals of its.. Terrible enemy of the new version of the engine will need to be drilled out the of. Its also not easy to repair, though it costs a lot like a turbo at around $ 250 get. Are the copper washers they differ only in the petrol version than in the number cylinders. That we give you the best experience on our website in fact, apart from the previous C-Class and first... The replacement of the engine they are also typical policy: we do not store or personally! Accompanied by a link to the source material ( in versions of more than hp. Problem you will also have full access to 20072009W204 C220 CDI pump is electric it., two seats with a tolerance of 229.1 enough, the OM 646 was sold the.