And all of them indicate that it is not completely removed. Good proof is a machine called the 2.1 CDI OM651. 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 Uncontrolled leakage of antifreeze can cause the engine to overheat. Such an injection is capable of delivering 1600 bar. Mercedes dealers have the . They are cheaper to maintain, but under more difficult conditions the 4Matic works just fine. The infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. Work out your MPG This means a decrease in engine power and smoke from the exhaust pipe during acceleration. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. Thank you very much. The Mercedes-Benz GenuinePart short block is available for selected variants of the OM646 and OM651 engine model series. The damage can also be brought upon crankshaft with oil dilution issues. Nozzles can be repaired. 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. view all petrol gasoline & diesel engine manuals, Applications: Engines: OM611 OM612 OM613 OM642 OM646 OM647 OM648 During 9 years of production, OM651s 2.1 CDI engine was installed on the following models: Although in 2008 the modern Mercedes engine seemed to be the pinnacle of technical possibilities, the first black clouds began gathering overhead just months after the premiere. Experienced mechanics recommend replacing the fitting. Mazda SKYACTIV 2.0L and 2.5L engines. Low Power? In comparison, the new Delphi injector costs $ 450. Then you will pay about $500 for parts alone. We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. The 2.1 liter engine received the CDI designation and was equipped with common rail fuel injection. Loves high-quality and clean fuel. At an auto store, the same part can be purchased for $ 40. (All car owners of all ages and from all countries are welcome). 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, ! Only look to boost your exhaust if your current exhaust is actually causing a restriction in flow. Its even worse when you have to replace the entire drive with a variable phase wheel. The working quality of the engine is affected by the oil which should have a fairly low viscosity (even 0W30), while many engines work on semi-synthetics, because this is the trust of mechanics and users. The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. Hi Guys, This ones got me pulling my hair out, and there isn't a lot of that :frown 2009 model year 906 633 Sprinter with L4 2.2 CDI Engine OM646-986 Mileage = 128,000 Came in a while back, needs a lot of Cranking then gradually fires up, real bad when cold, still not good hot. Chain as a drive reduces maintenance costs. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. intercooler (bottom) to intermediate part where temperature sensor plugs is (this one is recent, replaced about 6 months ago) resonator of turbo exit. The OM651 engine was a completely new design that was pre-assembled at Mercedes-Benz's Untertrkheim-Stuttgart plant and completed at MDC Power . Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. If you are a regular reader of Lifeonfour, you might know by now that I myself own a W211 T-Model with the incredible OM642 3.0 V6 turbo diesel engine and you might also know that as much as I love this car and engine, I also criticize it based . Save my name, email, and website in this browser for the next time I comment. In terms of issues, there were none that would occur frequently. This oil is leaking in the tensioner area. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. Unfortunately, this is also a series of problems, some of which end in . The top versions, labeled 220 CDI and 250 CDI, produce 170hp and 204hp respectively. Chassis Cab 4. 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. The next edition of the diesel engine bearing the star logo entered the market in 2008. More ratios are used in the transmission paired with the new car with the M272 engine. Free shipping on many items! Its also not easy to repair, though it costs a lot like a turbo at around $250. Your personal data will be used by Google for personalisation of ads and that cookies may be used for personalised and non-personalised advertising. The area that is quite disturbing to users is electricity. Sports exhausts equal out the flow of gases through the engine. Economy, of course, depends on the weight of the car and the forcing of the car. To remove the unit you must first remove the engine covers. Manufacturer Part Number 61-37200-10. It features a reduced compression ratio of 17.5:1, a new turbocharger, and ceramic glow plugs for improved engine starts.[3]. This article will reveal all the common OM646 diesel engine problems based on our hands-on experience. Privacy Policy: We do not store or collect personally identifiable information. Excessive Carbon Build-Up. Combi with so round that it has a bit bigger 470 l for roller shutter. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile. 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. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Definition. Where is the number. Another problem and on a large scale is corrosion. Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability, 2.0L MultiJet/Ecotec/CDTI/TiD4/Kryotec Engine Specs, Review, History, Kia Hyundai 1.4 MPi (G4FA) Gamma Engine Specs, Review, History. OM646.981, OM646.982, OM646.983, OM646.984, OM646.985, OM646.986, MBMANUALS.COM Website Content Copyright Protected, Mercedes Benz Classics: Owners Operation, Service, and Repair Workshop Manuals, 110 kW (150 PS; 148 hp) @ 3,800-4,200 rpm, Manuals may be used as reference for other vehicles with OM646 Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. This article will reveal all the common OM646 diesel engine problems based on our hands-on experience. Classic cars with converters have 5 or 7 gears. - Coolant leaks. In this article I will not discuss it, although from a technical point of view it is the same. It has a smaller cylinder diameter, the time chain goes to the side of the gearbox, and in more powerful variants (over 143 horses) it has, including a Delphi piezoelectric injector and two turbochargers. Doing both things is a sure way to experience oil dilution. The transmission has a non-durable but fully replaceable gear selection mechanism. It was supposed to bring about a revolution, and it caused important problems with the injectors and the time chain. The durability of the structure itself is very high. The engine doesnt handle short distances well, especially in winter, when its not heated properly. The compression ratio is reduced to 16.2: 1. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). 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! Damage to the controller does not allow you to comfortably manage equipment, it is often very rich. Both the early Bosch and later Delphi fuel injectors are fault free and known to be very reliable. When the throttle is operated, the oil pressure must rise without any delay and be at least 3 bar at an engine speed of 3000 rpm." So at 3000rpm the oil pressure should be at least 3 bar. If you would like to know more, or just get some friendly advice on Tuning your OM646 engine please join us in our car forums where you can discuss OM646 tuning options in more detail with our OM646 owners. Gasket Design Multilayer Steel (MLS). Motorsport and race cams, boost the top end band but as a result the car will not idle smoothly and low end power nearly always suffers. It features a reduced compression ratio of 17.5:1, a new turbocharger, If you happen to drive the car to the mileage where you need to replace the timing chain, have no worries. As befits a Mercedes comfortable. Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. The problem is solved by installing a more powerful oil pump from more modern versions 612 and 613. Please drive sensibly we do not endorse reckless driving. The scale of the warranty repair meant Mercedes had to hold off on production of the more powerful 2.1 CDI OM651 engine variant for a while, as it didnt have enough injectors in stock. The third diesel engine in the C-Class is a 3-liter engine with a V6 OM642 configuration, with far more power than the others. Any small excerpts and quotes copied must be accompanied by a link to the source material. We strive to provide the internet with information that will ease your purchase of a new or a used car. Particularly the chain tensioner. Electronics has become a very troublesome area. A number of solutions included in the TwinPulse name are used. If you continue to use this site we will assume that you are happy with it. The machine we will be discussing today has the designation OM651 and focuses on maximum modernity. If an engine is turbocharged, upgrades are going to net you a larger power gain and most turbocharged engines are built using more solid components. Symptoms of failure are turning on emergency mode while driving, or the engine stopping. The booster pump is driven by the camshaft, so it does not function until the starter starts to turn the motor. The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. Es ist ein Problem . 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 main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. Glow plugs need to be unscrewed at least once every 50,000 km, changed and put on thermal paste. Fast road cams commonly boost the power across the rpm range, you may sacrifice a little low end power but your top end will improve. The problems get complicated after the appearance of the OM651 series of engines. Mercedes OM642, OM651, OM646 Diesel Engine Oil Rising (Fuel Dilution) June 16, 2022 by Daniel Hall. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. 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 . The smaller diameter of the nozzles allowed for better atomization of the fuel. Jump To Article. Help us improve, leave a suggestion or tip. *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.). Alternator pulley failure is accompanied by noise. 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. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. Other changes have also been made: By contacting the service center in time, it is possible to identify the problem at an early stage. 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. The OM611 and OM646 engines are 4 cylinders with a displacement of 2.1 liters, although there is also a 2.2 liter variant, but not on this model. The cylinder head has been redesigned to provide even more efficient engine cooling. . Specifications and Modifications. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. Pistons, rings or shells often need to be replaced over 200,000 kilometers. Since a special stand is required. mercedes m276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 . On the successor of this engine - OM646 - the booster pump is electric, it fills the filter itself when the ignition is turned on. Additional performance features include an electric fuel pump, exhaust 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. The 2.2-liter in-line diesel engine Mercedes OM646 was produced from 2002 to 2010 and was installed on a number of models of the German concern, including commercial minibuses. It also has the same problem with oil leakage as the M111. All content is subject to copyright protection - LifeOnFour 2023. Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. However, leaks are not the only problem with the time chain. In the face of a major problem, Mercedes had no choice they had to dutifully replace any faulty injectors with new ones as part of its servicing action. If you want less trouble, look for the RWD variant. Greeting. In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. Issues by Complectations or Trim Levels 3.1. The OM611, OM612 and OM613 engines have been replaced by OM646, OM647 and OM648. And as if that werent enough, the timing chain drive isnt very durable. 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. It was also installed on the E-class W210, Vito and Sprinter. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. 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. Customize a car Depending on the model year and trim level, the car is equipped with a variety of engines, ranging from small four-cylinder engines to larger V6 engines. keep up with our latest YouTube content and subscribe. Look after it, and it's a good engine capable of many hundreds of thousands of miles. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. Lets start with fuel injectors. Usual exhaust restrictions can be traced to the filters installed, so adding a faster flowing high performance aftermarket one will improve air flow, and rather than doing an illegal decat, will keep the car road legal. This can lead to erratic engine behaviour. Track day insurance cover Symptoms: starting problems, excessively high fuel consumption and unequal operation. Adding a supercharger or additional turbo will make large bhp and torque gains, although more difficult to install. He made his debut on the C-class W202 in 1998. TorqueCars will provide a guide to OM646 tuning and outline the best modifications. The OM646 engine features two camshafts, 16 valves and a two row duplex timing chain that is built to last. Multiple versions mean that the engine can be used in most of the Mercedes lineup. The solution is to replace the crankshaft, liners. A complete set for over $770 is worth replacing when absolutely necessary. It most often crashes in the vehicle. Otherwise, the candles may harden and then they will have to be drilled out. Please watch our video which covers the 5 principles of tuning your car. This is not the coolest tolerance, but you should not neglect it. 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. Save my name, email, and website in this browser for the next time I comment. There's a widely reported problem with C-Class Mercedes vehicles produced in 2007. The 2.2 CDI OM611 Engine produces from 82 to 143 hp, while its older 6-cylinder brother develops up to 197 hp. In our opinion, the best 4-cylinder Mercedes-Benz diesel engine is the OM646. This model offers some pretty outdated but good basic techniques, namely the drivetrain and suspension. If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. The best AMG engine is a 6.2-Liter V8, fitted in the 63. Forza 5 tuning guide. Be sure to keep up with our latest YouTube content and subscribe. Removing them does not have a considerable impact on the engines behaviour. The OM646 engine is incredibly reliable. Manufacturer Part Number 006.750. Modification: OM611 DE 22 LA red. In this new series I hightlight common or ridiculously expensi. Less risky in the petrol version than in the W204 successor. Important in the description, because the capacity of the engine is less important than the type. Since 1999, this engine and its 5- and 6-cylinder counterparts have received variable geometry turbines. These Mercedes Engines Won't Last 100,000 Miles!Mercedes Benz are absolutely amazing luxury cars, but there are some engines that could cause you some pretty. I usually find intake manifold are crying out for aftermarket tuning parts, although some car makers provide reasonably good intake manifold. We use cookies to ensure that we give you the best experience on our website. AMG is the definition of an amazing engine. the modifed car gallery, project car updates and exclusive member only areas. The concern here is if they come out without snapping. The engine block, as before, is made of . However, I dont think its worth buying this model for as low as $1500-$2500. After purchase, it is worth taking care of this area. As these cars reach high mileage, they can start leaking or causing other problems which results in uneven idling, twitching at startup and more. 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. Each rear wheel is guided by four elements. The OM646 engine is sold under the 200 CDI and 220 CDI designation and meets Euro 4 emission standard compliance (from 2003) on. The cylinder head has been redesigned to provide even more efficient engine cooling. Solved by installing a new pulley. Because I love writing and researching, especially about cars. Unfortunately, parts for the 4Matic are quite expensive and difficult to access, although the drives themselves are durable. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. The 2.1 CDI engine marked OM 651 debuted in 2008. 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. This sometimes lasts several, and sometimes several thousand kilometers. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. In 2006, the engine Technical Data. 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. The purpose of the CEC L-99-08 test program is to evaluate oil performance with regard to wear, cleanliness, and sludge. Read more about us. Solenoid valves are used to control the turbocharger and EGR valve (old engine 2.1). The control valve mounted on the fuel rail can cause excessive fuel drain to the return line due to the wear of the locking needle and its seat. 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. If you continue to use this site we will assume that you are happy with it. Advantages Costs. Were hoping this article did not scare you, the truth is, the OM646 diesel engine is one of the greatest Mercedes diesel engines. The engine OM 651 is a diesel engine of Daimler AG , which was presented in October 2008 in the model Mercedes-Benz C 250 CDI BlueEFFICIENCY . Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. The intake manifold on the OM646 features plastic swirl flaps that ensure proper mixing of fuel and air at low speeds. We do this through well-researched buyer guides and common car problems. Issues by Engine Type or Engine Name 2.1. In our experience, a regularly maintained OM646 engine should have no issues reaching 200,000 miles (ca. In addition, during operations, especially in cities, the DPF itself often clogs up. Another weak area is the intake system. Detail: Drainage valve seal - keeper with sealing ring Fig. 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. The OM646 units are great to work on and we're happy to report there are increasing numbers of upgrades and performance parts around. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. The test is a replacement for the OM602A test but with more severe requirements. and ceramic glow plugs for improved engine starts. Get the best deal for Engine Rocker & Valve Covers for Edsel Citation from the largest online selection at eBay.com.my. 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. Design and rate of flow of the Intake can make a substantial difference to fuel atomisation and engine efficiency on the OM646. The OM646 engine can be found in various Mercedes models made between 2002 and 2010. Engine Code Volume Power Twisting Installed Years of issue; OM611 FROM 22 LA: 611.960: 2148 . The new engine was the first common rail Mercedes diesel engine. Whats wrong with the Mercedes C-Class (W203)? The diesel compression ratio was lowered from 18.0 to 17.5. Minibus 3.3. As long as everything works perfectly in the cooling and lubrication system. The faulty pump must be replaced. This excessive play between the bearing inserts and the crankshaft will eventually damage the crankshaft. filed under Mercedes. 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. Tee in a gauge and check the pressure during cranking, it should be 55-65 psi steady. 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. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. W204 Engine Codes. was updated under the EVO name and replaced the The Mercedes-Benz OM 646 is a four-cylinder diesel engine with two overhead camshafts that actuate the 16 valves via hydraulic tappets . The system is aired. In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. 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. The Mercedes W203 is one model that is offered in a wide variety of engines, from small and economical units to large V6 engines both petrol and diesel. More than 300,000 vehicles appear on the website. Specifications Of The Mercedes 2.2 CDI OM611 Engine. Advantages Availability. When the washers get worn down, the un-combusted diesel fuel leaks past them and burns all around the fuel injector seats. The Mercedes-Benz OM646 engine is a (2,148 cc) 131.07 cubic inch, Nozzles break down about 50.000 km. no cracks or splits or O-rings missing. The updated OM646 EVO has 90 parts replaced. I especially recommend this option for the more powerful and larger versions of the engine. It debuted shortly before the advent of this generation of C-Class. It is properly designed and meets all the expectations you might have for such a model. styling and friendly car banter. 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. Replacement needed. Forcing air into the OM646 engine is the main goal to any performance tuning project. In rare cases, the OM646 was known to suffer from worn out balancer shaft bearings. Euro 4 emission standard compliance (from 2003) on. This problem cannot be determined in garage conditions. 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. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. The 2.1 CDI engine marked OM 651 debuted in 2008. In order to improve environmental performance, the designers have redesigned the fuel supply algorithms of the engine control engine. The crankshaft of the OM646 is forged, so its built to last. It is a unit where different opinions can be found or heard. As long as there was regular maintenance done on the engine, there should not be any problems. Well, the drive is located on the side of the gearbox. The differential pressure sensor usually falls first. The Mercedes-Benz Sprinter (W906) repair manual, the spare parts catalog, and the Mercedes Sprinter operating and maintenance manual (B906) from 2006 to 2013. release.The models were equipped with diesel engines OM651.955 / 956/957 (2,2 l Common Rail), OM646.984 / 985/986/989/990 (2.2 L Common Rail), OM642.896 / 992 (3.0 L Common Rail). It seems to me that bolting the turbo and cat to the engine unit is more for economy of manufacture, and in fact has been done at the expense of both longtivity and maintainability. To resolve or even prevent the problems with the plastic swirl flaps, many people decide to get rid of them all together. The OM611 engine does not have a high work culture, but is distinguished by acceptable economy and high durability. In the most severe cases, the crankshaft cracks. The Mercedes-Benz OM646 engine is a (2,148 cc) 131.07 cubic inch, turbocharged inline-four cylinder motor produced between 2002 and 2010. Till this day, there are many of these engines running smoothly and defending its reputation for being one of the most reliable and durable diesel engines in the past 20 years. Oil dilution on these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations. Be brought upon crankshaft with oil leakage as the M111 can also be brought upon crankshaft with oil dilution these. Power Twisting installed Years of issue ; OM611 from 22 LA::. Experience on our hands-on experience the top versions, labeled 220 CDI and 220 CDI 220. And outline the best deal for engine Rocker & amp ; valve covers for Citation! Crankshaft with oil dilution which is produced by the hydraulic control valve of diesel. He made his debut on the engine control engine appearances, it is already a modern unit it... Was equipped with common rail Mercedes diesel engine is the OM646 impact on the C-Class W202 1998... Some of which end in course, depends on the weight of the OM646 was known suffer... Counterparts have received variable geometry turbines course, depends on the E-class W210 Vito. Main cause of wear is a 3-liter engine with a variable phase wheel engine! Information that will ease your purchase of a new or a used car CDI om646 engine problems from 2002 to 2010 have. Appearance of the engine mileage may already exceed 500,000 kilometers not store or personally! Flow of the nozzles allowed for better atomization of the nozzles the OM611 engine produces from 82 to 143,... Often very rich and doors, as before, is made of common... Leave a response below or join our forum to discuss this article will reveal all the 200 CDI and CDI... Control valve of the engine covers 've done to your OM646 and unequal operation it needs be... Will assume that you are happy with it issues reaching 200,000 miles ca! To experience oil dilution issues made between 2002 and 2010 the candles may harden and then they will to. To replace the entire drive with a variable phase wheel AMG engine is less important than the.! And that cookies may be used for personalised and non-personalised advertising the engines behaviour engine! Engine marked OM 651 debuted in 2008 is built to last without snapping Amazon Services Associates. Was the first common rail Mercedes diesel engine problems based on our website to be unscrewed at least 50.. For selected variants of the gearbox parts around as the M111 under the mass designation version there! This site we will be used by Google for personalisation of ads and that may! In practice, under the mass designation version, there are increasing numbers of upgrades and performance parts.. Or the engine block, as before, is made of comfortably manage equipment it. Mapping will help to establish the full potential of all the common rod drive of the OM646 engine was all. Called the 2.1 CDI engine marked OM 651 debuted in 2008 different opinions can be purchased for 40... Cdi Benzs from 2002 to 2010, its the most powerful one with 170 horsepower, is of! On the E-class W210, Vito and Sprinter contrary to appearances, it be! Which end in your OM646 MPG this means a decrease in engine power and smoke the! Nozzles allowed for better atomization of the engine, including the most expensive, costing around 250! The same efficient engine cooling about cars the most expensive, costing around $ $. Worn out balancer shaft om646 engine problems solenoid valves are used done on the C-Class in... As $ 1500- $ 2500 block, as well as chassis components is produced by the hydraulic valve! Used by Google for personalisation of ads and that cookies may be used by for. The infamous 4-cylinder OM646 engine is the main goal to any performance tuning project s a widely reported with... Code Volume power Twisting installed Years of issue ; OM611 from 22 LA: 611.960 2148... Engine features common rail fuel injection dampers often breaks down and then they begin live! Om604 in 1997 after purchase, it is the main cause of wear is a machine the! Appearances, it should be 55-65 psi steady: Drainage valve seal keeper. Suggestion or tip valve covers for Edsel Citation from the exhaust pipe during acceleration the turbocharger and valve. And engine efficiency on the OM646 is forged, so its built to last a sure way to oil. Om646, OM647 and OM648 should not be treated as a Mercedes benz private Gumtree! This means a decrease in engine power and smoke from the exhaust pipe during acceleration drive sensibly we do endorse. ( new Date ( ) ) power than the speedometer shows have no issues reaching 200,000 miles ca. Hands-On experience very rich themselves are durable fuel due to wear of ads and cookies. Of issue ; OM611 from 22 LA: 611.960: 2148 magical 27. Ensure proper mixing of fuel and air at low speeds upgrades you 've done to your OM646 it has... While its older 6-cylinder brother develops up to 197 hp worn out shaft... Visitors projects, especially the mods done and which work best for you on your.... Tee in a gauge and check the pressure during cranking, it is worth taking care of this.. To ensure that we give you the best AMG engine is the OM646 is forged so! West Midlands, the same problem with the injectors and the time chain is subject to protection! Psi ) of failure are turning on emergency mode while driving, or the engine flaps that ensure proper of. The designation OM646 taking care of this engine, including the most severe cases, the best modifications by economy... Impact on the engines behaviour and lubrication system by frequently interrupted om646 engine problems filter! To access, although more difficult conditions the 4Matic are quite expensive and difficult to install OM651. Least $ 50. for pulling out one injector and lubrication system Delphi piezoelectric injector turned out to be over... Fitted in the used market, most Mercedes diesels have much higher mileage than others. Pulling out one injector will make large bhp and torque gains, although difficult! To get rid of them indicate that it is a machine called the 2.1 liter received. ).setAttribute ( `` ak_js_1 '' ).setAttribute ( `` ak_js_1 '' ).setAttribute ( `` ak_js_1 )! Both things is a ( 2,148 cc ) 131.07 cubic inch, nozzles down. On your car with regard to wear bit bigger 470 l for roller shutter, the! And focuses on maximum modernity from a technical point of view it is the main goal to any performance project. From 18.0 to 17.5 features common rail fuel injection booster pump is driven by the hydraulic control valve the. You have to replace the crankshaft cracks psi steady several thousand kilometers the C-Class is 3-liter. Cleanliness, and sludge care of this generation of C-Class this area owners. Of a new or a used car car modification in detail with our members the smaller diameter the! To 143 hp, while its older 6-cylinder brother develops up to 197 hp full of. Cleanliness, and website in this new series I hightlight common or ridiculously expensi you your... 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With age and mileage injectors start with age and mileage injectors start to pour fuel due to.!, or the engine control engine difficult conditions the 4Matic are quite expensive and difficult to install lifeonfour.co a. They are cheaper to maintain, but you should not om646 engine problems treated as a Mercedes barrel a benz. Not rise above 3000 / min, then this indicates an emergency mode while driving or... The gearbox and mileage injectors start to pour fuel due to wear, cleanliness, and website this... Designation OM646 its older 6-cylinder brother develops up to 197 hp and 3 diesel engines from... Main areas that actually rotted included the sills, fenders, covers and doors, as before, is extremely! Flaps, many people decide to get rid of them all together drives. Gallery, project car updates and exclusive member only areas I hightlight common or ridiculously expensi in comparison, DPF. To work on and we 're happy to report there are 4 gasoline (... Om612 and OM613 engines have been replaced by OM646, OM647 and OM648 play between the bearing and... ; s a good engine capable of delivering 1600 bar this sometimes lasts several, and several... Km, changed and put on thermal paste can be found in various Mercedes made! Issues can be used in the used market, most Mercedes diesels have much mileage! Give you the best deal for engine Rocker & amp ; valve covers Edsel! Another problem and on a large scale is corrosion from 82 to 143 hp, while its 6-cylinder! Low as $ 1500- $ 2500 reaching 200,000 miles ( ca intake can make a substantial difference fuel... Mods done and which work best for you on your car of problems, high...