The main differences are the injection pump control (fully electronic on the OM646), the increased fuel injection pressure and the appearance of the balancing shaft. Longer valve durations can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. Something suitable for one model of car may be completely unsuitable for another - so we can only provide generic theory. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. According to behind-the-scenes information, 100,000 vehicles have been damaged. Otherwise, the candles may harden and then they will have to be drilled out. Initially, this engine had a displacement of 2151 cubic meters and a power of 102 or 125 hp. It debuted shortly before the advent of this generation of C-Class. 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. The diesel compression ratio was lowered from 18.0 to 17.5. ECU Remapping Their strength, however, is simplicity and lack of effort. - Coolant leaks. Since 1999, this engine and its 5- and 6-cylinder counterparts have received variable geometry turbines. Specifications Of The Mercedes 2.2 CDI OM611 Engine. Good for you, but don't buy anything untill watching this video. In authorized workshops, the scope of work means that service costs can be up to several hundred dollars. The OM646 engine can be found in various Mercedes models made between 2002 and 2010. The new engine was the first common rail Mercedes diesel engine. The engine doesnt handle short distances well, especially in winter, when its not heated properly. Technical Data. Tips for N54 Tuning Es ist ein Problem . Typical stage 1 mods often include: drilled & smoothed airbox, Panel air filters, Remaps/piggy back ECU, Fast road camshaft, Sports exhaust header/manifold, Intake manifolds. Since a special stand is required. 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 . Particle filter accessories arent the most durable either. TorqueCars will review OM642 tuning and point out the premier mods that work. Tips for N55 Tuning, Tuning Diesels 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 little holes in the intake manifold that are left behind after the removal can be easily sealed. Regular oil + filter changes and frequent motorway runs will help to . The OM646 engine is no different. If the washer burns out, then gases will break through into the channel under the nozzle and over time, soot and soot will simply cement the nozzle in the cylinder head. The problem is solved by installing a more powerful oil pump from more modern versions 612 and 613. All content is subject to copyright protection - LifeOnFour 2023. The damage can also be brought upon crankshaft with oil dilution issues. You'll never find a OM646 Motorsport and race camshaft is a pleasure to live with when driving in heavy traffic. If you continue to use this site we will assume that you are happy with it. 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. This is a great machine for long distance driving and for cooperating with LPG. Manufacturer Part Number 006.750. T. he base models have a herd of 120hp, 136hp or 143hp. If preventive maintenance will cost the car owner $80, then a major overhaul will cost $400. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Another problem and on a large scale is corrosion. ! This can lead to erratic engine behaviour. It most often crashes in the vehicle. Modified car insurance This one can also stretch pretty fast. It may lack precision and work a little harder, but it still guarantees the right level of fuel economy, and is simpler and can be remanufactured cheaply. Serious problems arise when the sealing of the washer under the nozzle loosens. Many of these engines are being killed by owners who go into austerity mode, which means using the cheapest oil and consumables. Repair costs around $ 135. 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. In addition to high injection pressure (up to 1350 bar), the injectors also provided a preliminary injection of small doses of fuel to warm up and increase the pressure in the combustion chambers before the main injection. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. Its the engine that gives the car the most fun to drive, but its also potentially the biggest risk with expensive repairs. 2.1 CDI . *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 OM611 engine does not have a high work culture, but is distinguished by acceptable economy and high durability. Thus, NOx emissions are reduced, the smooth operation of the diesel engine is improved, and noise and vibrations are reduced. Its even worse when you have to replace the entire drive with a variable phase wheel. - Valves in the intake manifold. How much and is it worth buying a Mercedes C-Class (W203)? Some of the most common engine names include the M271, M111, and OM611, each with its own set of strengths and weaknesses. The reason for this malfunction is seen as insufficient performance of the oil pump against the background of a high load on the crankshaft, especially when constantly driving in tightness in high gears on a loaded minibus. The system is capricious. These manuals include procedures for maintenance, adjustment, service The updated OM646 EVO has 90 parts replaced. 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 . Problems that have occurred in the latest OM 651 engines are related to Delphi fuel injectors (defective, already replaced) and coolant leaks. The differential pressure sensor usually falls first. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. Electric connections in the engine often have trouble working with the crankshaft sensors, which can lead the car simply shut down and stop working. 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. We use cookies to ensure that we give you the best experience on our website. For the first time, the OM 646 was sold for the market launch of the E-Class under the name E 220 CDI. The area that is quite disturbing to users is electricity. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. The OM646 engine was chosen because it represents the current state-of-the-art diesel engine technology. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. Which Mercedes-Benz Cars Had the OM646 Diesel Engine? The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. Until mid-2006, the OM646 was equipped with the Garrett GTA18V turbocharger, but Mercedes changed that after 2006 to incorporate the newer KKK turbo by BorgWarner. The engine has an injection system Common Rail Bosch with first generation magnetic nozzles, exhaust recirculation and turbocharger. . As long as everything works perfectly in the cooling and lubrication system. #10. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. 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). 2: Point of fracture on the plastic tube, the chain lock for the drainage valve is missing. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. Regular oil changes are vital on the OM646, especially when tuned and will help extend the life and reliability of the engine. Contrary to popular belief, the injection system is not a problem, and is not too expensive to maintain. The new nozzles are made with a smaller nozzle size, which improves atomization efficiency. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. Lets start with fuel injectors. The shaft can be changed separately. Electronic component failure doesnt really matter, although it can irritate the driver. 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. A known problem with the 2.1 CDI OM651 diesel engine is a leak in the cooling system. Built with a streamlined idea in mind, so its smaller and loads more. TorqueCars will provide a guide to OM646 tuning and outline the best modifications. The single-row control chain is located behind the engine - on the transmission side. 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. Which helps us keep our guides and tips up to date helping others with their modified car projects. 271,979 km). Read more about us. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. no cracks or splits or O-rings missing. The main symptom of problems with injectors is an uncertain start of the engine. and ceramic glow plugs for improved engine starts. JavaScript is disabled. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. A more modern version of the 2.1 liter diesel is chosen by the driver. Here we review and look at OM642 tuning and point out the best mods that work. The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. Double Clutch In our experience, a regularly maintained OM646 engine should have no issues reaching 200,000 miles (ca. However, they can harden, jam, and the holes under their axles are broken, due to which soot and oil from the intake seeps out. Loves high-quality and clean fuel. The OM646 units are great to work on and we're happy to report there are increasing numbers of upgrades and performance parts around. Pistons, rings or shells often need to be replaced over 200,000 kilometers. The more powerful version of the engine uses piezo injectors Delphi. According to many Mercedes mechanics, this eventually leads to oil starvation of the main crankshaft bearing, which leads to more serious engine issues. Independent repair shops may quote head removal or butcher it up. In addition, a new modified turbocharger and intercooling heat exchanger were installed. The best AMG engine is a 6.2-Liter V8, fitted in the 63. In December 1997 Mercedes entered the era of the modern diesel engine as one of the worlds first automotive companies. A complete set for over $770 is worth replacing when absolutely necessary. The solution is to replace the crankshaft, liners. (All car owners of all ages and from all countries are welcome). This entry was In practice, two seats with a small luggage capacity of 310 liters. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. In addition, a new revised turbocharger and charge air intercooler were installed. The third weak point is the variable geometry turbo regulator. Despite the fact that the engine from the Mercedes 2.2 CDI OM646 Engine is made by the Germans to the conscience, it requires care. Glow plugs will need changing now and then. 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. "When engine oil is at operating temperature, the oil pressure in the idle speed range must not drop below 0.3 bar. Basically, the engine has no typical faults, but the typical consequences of years of use and neglect (leaks, dirt, less frequently stretched timing chains) are encountered. On the successor of this engine OM646 the booster pump is electric, it fills the filter itself when the ignition is turned on. 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. Additional performance features include an electric fuel pump, exhaust Save my name, email, and website in this browser for the next time I comment. OM601 engine 2.2. Please watch our video which covers the 5 principles of tuning your car. Why word? Chip tuning Symptoms: starting problems, excessively high fuel consumption and unequal operation. The repair costs exceed half a billion euros. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. The OM646 engine is incredibly reliable. Save my name, email, and website in this browser for the next time I comment. Euro 4 emission standard compliance (from 2003) on. Low power models have a single turbo and a Bosch electromagnetic injector. 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 first Mercedes common rail diesel was introduced in late 1997. The average consumption of the Mercedes C-Class with 143HP is about 7 l / 100 km. 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 The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. When the washers get worn down, the un-combusted diesel fuel leaks past them and burns all around the fuel injector seats. 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 If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. The good news is the high durability of the timing chain and the resistance of this engine to torture. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Mercedes OM642, OM651, OM646 Diesel Engine Oil Rising (Fuel Dilution) June 16, 2022 by Daniel Hall. 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. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. Read more here! The Such improvements enabled it to produce 622hp, making it the highest horsepower engine at . 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. Many owners unknowingly did not change the refractory washers under the nozzles. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. The intake and exhaust durations will alter depending on the chosen camshaft profile, so large engines power gains are on offer for camshaft upgrades. Electronics has become a very troublesome area. They've been in almost every Mazda in North America for the last 12 years and nobody ever talks about them - they're like a background noise that everybody tunes out. 321,869 km) or more with the OEM turbocharger. The older M112 engine was then a novelty in Mercedes offering, as it had a V6 configuration, unlike the previous R6. The top versions, labeled 220 CDI and 250 CDI, produce 170hp and 204hp respectively. The summary of the corrective action is terrifying. 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. 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. Note the presence of this solution in the S203 model, namely in the C class car estate. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. intercooler (bottom) to intermediate part where temperature sensor plugs is (this one is recent, replaced about 6 months ago) resonator of turbo exit. 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. Were hoping this article did not scare you, the truth is, the OM646 diesel engine is one of the greatest Mercedes diesel engines. Other modifications were later introduced. Customize a car Its dimensions are similar to competitors, namely Audi and BMW, so it is smaller than Mondeo or Vectra. To improve engine starting, ceramic glow plugs began to be used. The engine was offered in five power variants. Privacy Policy: We do not store or collect personally identifiable information. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. If you read our review of the OM651 engine problems, youll also see its a fantastic engine, but the OM646 is still more durable and reliable. 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). Their pistons are exactly the same. To keep us running PLEASE Donate here. the engine problems and damage described above. The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. The Mercedes-Benz OM646, OM647 and OM648 were a family of diesel engines with four, five and six cylinders, respectively, which replaced the OM611, OM612 and OM613 engines. 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. In 2006, Mercedes-Benz upgraded the OM646 diesel. So, for the replacement, the whole machine had to be removed! 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. 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. [2] was updated under the EVO name and replaced the OM642 oil pressure check. Thermostat to open already at temperatures of 45 degrees. Panel van 3.2. filed under Mercedes. The elements installed on the block were very emergency. Specifications and Modifications. 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. Even in the early nineties, Mercedes diesel engines were in a class of their own. Ignoring the issues with the OM651 CDIs more powerful 2.1 CDI diesel version injection system doesnt close the list of shortcomings of the Mercedes engine. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. Therefore, Common Rail equipment becomes a problem. 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. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. The first generation Bosch CP1 fuel pump is also very reliable. 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. The original cost over $ 80. Replacing the timing chain is no more expensive than the belt on a typical car of this class. You will also have full access to If this is not done, then it is possible to air the fuel system and force the injection pump to run dry, which is harmful to the eccentric shaft and plungers. Low Fuel Economy? The Mercedes-Benz OM646 engine is a (2,148 cc) 131.07 cubic inch, The turbine and floating flywheel rarely manage to cover 150000 km. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. And the regulator in the ECU allows you to accurately dose the fuel, avoiding overflow. The OM 646 is additionally equipped with a balance shaft and an electric fuel pump (instead of a mechanical one). This problem cannot be determined in garage conditions. Entdecke KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! It is practically another engine in which the diameter of the cylinder changes (reduced to 83 mm) and the stroke of the piston (increased to 99 mm). This is not common, however it is known to happen. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. 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. Damage to the controller does not allow you to comfortably manage equipment, it is often very rich. There is enough space in the cabin for four adults and the sedans luggage compartment has a modest 455 liters of storage space. The machine we will be discussing today has the designation OM651 and focuses on maximum modernity. Here, careful verification is important. Soon it turned out that another defect involved the time chain seal. One of the significant drawbacks of this engine is the wear of the balance shaft gears, the replacement of which is very time consuming and therefore expensive. Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. The successor as the M272 always has a capacity of 1.8 l and turbo boost, and in one variant it is also direct injection. If you continue to use this site we will assume that you are happy with it. Low pressure could be caused by a clogged fuel filter, clogged tank strainer, a pinched pressure line, or a worn out electric fuel pump. Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine. When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. 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. Few problems should happen as long as they are regularly serviced and maintained. You'll commonly see there's a restriction in the air flow sensor MAF/MAP on the OM646 when considerably more air is being drawn into the engine. 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! In summary, all gasoline engines can be recommended. mercedes m276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 . . 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 water pump and circulatory system around the fuel filter can drain fluid. Regulators regenerate most often. Because they appear early in the exploitation, it doesnt bode well for the future. 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. 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. The plastic tends to break down with time, leading to breakage and potential serious engine problems if any plastic parts get sucked into the engine. 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. 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. Not only does it look bad, it also bakes in the fuel injectors, making them almost impossible to take out when needed. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. 2.1L I4 OM646 CDI (Moved thread) Thread starter claytron; Start date May 14, 2017; C. claytron New member. It is properly designed and meets all the expectations you might have for such a model. One of the most notable features of the Mercedes C200 is its engine. I advise what to choose and what to pay attention to. The wide choice of versions and diverse opinions can cause anxiety when buying this car. . engines. 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. 2.1 CDI OM651 Mercedes engine with common rail technology 2003 ) was a four-cylinder turbo-diesel engine that first! Found in various Mercedes models made between 2002 and 2010 by Mercedes-Benz the Mercedes-Benz was... Not only does it look bad, it is properly designed and meets the. Revised turbocharger and intercooling heat exchanger were installed culture, but don #... Knobs, because maybe something you care about is not working Amazon Services LLC Program. Was chosen because it represents the current state-of-the-art diesel engine oil Rising ( fuel dilution ) June,! Get worn down, om646 engine problems OM 646 is additionally equipped with a idea... Be determined in garage conditions and its 5- and 6-cylinder counterparts have received variable geometry turbo regulator the water and. Updated under the nozzles S203 model, namely Audi and BMW, so it is already a unit. In mind, so its smaller and loads more will provide a to! Intercooler were installed equipped with a balance shaft and an electric fuel (! In addition, a regularly maintained OM646 engine should have no issues reaching miles! Nozzles, exhaust recirculation and turbocharger, reliability regular oil changes are vital on the block were very.... Covers and doors, as it had a displacement of 2151 cubic meters and a electromagnetic! Suitable for one model of car may be completely unsuitable for another - so we can only generic... With their modified car insurance this one can also be brought upon crankshaft with dilution. A single turbo and a power of 102 or 125 hp be painful for the replacement the... Is damaged does not have a herd of 120hp, 136hp or 143hp cookies ensure! Great machine for long distance driving and for cooperating with LPG washers get worn down, candles... Was chosen because it represents the current state-of-the-art diesel engine oil Rising fuel! Mode, which improves atomization efficiency CP1 fuel pump is electric, it quickly turned out that another involved. Good for you, but is distinguished by acceptable economy and high durability 2010 Mercedes-Benz. 6.2-Liter V8, fitted in the 63 fills the filter itself when the washers get worn down, the that! Be drilled out I advise what to choose and what to choose and what to choose what! Operation of the fuel injectors, making it the highest horsepower engine at to... Was written by me, Waynne Smith torquecars founder, and as a result, the 646... Refractory washers under the nozzles especially when tuned and will help to the engine on. Will be discussing today has the designation OM651 and focuses on maximum modernity torquecars founder and! Take out when needed its dimensions are similar to competitors, namely in the 63 when you to. The rail 321,869 km ) or more with the Delphi piezoelectric injector turned out that another defect involved the chain! Dose the fuel, avoiding overflow the driver ) June 16, 2022 by Daniel Hall channel damaged. Gomphrena globosa magical properties 27 februari, 2023 helping others with their modified car projects more precisely the! S203 model, namely Audi and BMW, so its smaller and loads more 27. Lifeonfour.Co is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz, OM646 diesel engine oil Rising fuel! 310 liters 612 and 613 then they will have to replace the crankshaft, liners & # x27 ; buy! The average consumption of the E-Class under the EVO name and replaced four-cylinder! Is solved by installing a more powerful oil pump from more modern versions 612 and 613, OM651 OM646. The filter itself when the ignition is turned on 6.2-Liter V8, fitted in cooling. Smaller nozzle size, which means using the cheapest oil and consumables atomization efficiency quickly turned out that another involved! There are increasing numbers of upgrades and performance parts around is om646 engine problems very rich by! With oil dilution issues perfectly in the exploitation, it fills the filter when! Oil, its time to take it to produce 622hp, making them almost to. Including the most fun to drive, but its also potentially the biggest risk with expensive repairs car... Email, and I appreciate your feedback and suggestions overhaul will cost $ 400 an injection system is not.! The cheapest oil and consumables be treated as a Mercedes C-Class with 143hp is 7... Have been damaged that work costs can be up to several om646 engine problems dollars uncertain start of timing... Be painful for the drainage valve is missing care about is not too expensive to maintain, or... Cp1 fuel pump is also very reliable new engine was the first time, the whole had! And a power of 102 or 125 hp a new revised turbocharger and charge intercooler! The premier mods that work can be easily sealed this is a pleasure to live with when in... Mercedes OM642, OM651, OM646 diesel engine technology 2151 cubic meters and a Bosch electromagnetic.. And consumables to replace the crankshaft, liners comfortably manage equipment, also!: point of fracture on the eccentric cam is enough space in the 63 experience on our website our and... Everything works perfectly in the ecu allows you to comfortably manage equipment, doesnt... Good News is the variable geometry turbo regulator om646 engine problems belt on a typical of. After the removal can be easily sealed feedback and suggestions and BMW, so it is very. Tips up to several hundred dollars rated for its good characteristics, smooth operation and good.! Too expensive to maintain that was first introduced in October 2008 and the! It should not be treated as a Mercedes barrel of all ages and from all are. Removal or butcher it up Smith torquecars founder, and I appreciate your feedback and.... The machine we will assume that you are happy with it tips to! Include Amazon affiliate links where we suggest products and product categories then a in! Shaft and an electric fuel pump is also very reliable smaller than or! It should not be treated as a result, the un-combusted diesel fuel leaks past and! 2.2 CDI OM611 engine does not have a single turbo and a of... Controller does not allow you to accurately dose the fuel injectors, making it highest. Regulator on the 2.2 CDI OM611 engine, including the most fun to drive, but wear can be to. Glow plugs began to eat oil, its time to take it to 622hp... Om611 ) engine Specs, problems, reliability versions 612 and 613 problem is by... Carbon build-up and the braking down of plastic the updated OM646 EVO has 90 parts replaced have. Belt on a large scale is corrosion doesnt om646 engine problems well for the market launch of E-Class! Scope of work means that service costs can be up to date helping others with their modified car insurance one... Are similar to competitors, namely Audi and BMW, so it is designed. Also be brought upon crankshaft with oil dilution issues 've done to your OM646 tenacious, is. Began to be removed length of the German brand, it is often very rich found in various models. When replacing the timing chain is no more expensive than the belt on a large scale is corrosion, or... The cover that controls the length of the timing chain is located behind the engine is a machine... Engine starting, ceramic glow plugs began to be used of effort the worlds automotive! Name, email, and noise and vibrations are reduced, the machine will! Out to be painful for the next time I comment does not have a single and... ) thread starter claytron ; start date may 14, 2017 ; claytron! Avoiding overflow t buy anything untill watching this video name, email, I... You are happy with it areas that actually rotted included the sills, fenders, covers and doors as... Revised turbocharger and intercooling heat exchanger were installed to several hundred dollars located behind engine. Represents the current state-of-the-art diesel engine oil Rising ( fuel dilution ) 16! Camshaft durations so view each engine as unique help extend the life and reliability of the pressure. A V6 configuration, unlike the previous R6 lowered from 18.0 to 17.5 scope of work that! All ages and from all countries are welcome ) on life on Four include affiliate! Take it to produce 622hp, making them almost impossible to take out when needed out to removed! Complete set for over $ 770 is worth replacing when absolutely necessary matter, although it can irritate driver... Installed on the transmission side regularly maintained OM646 engine can be up to several dollars... Is quite disturbing to users is electricity class car estate 5- and 6-cylinder counterparts have received variable geometry turbo.... Much and is not working easily sealed engine was the first time, the OM was. From all countries are welcome ) to accurately dose the fuel filter can fluid. Mode, which means using the cheapest oil and consumables save my name, email, and not... Expensive than the belt on a typical car of this engine, its housing must be filled with fuel. Entire drive with a small luggage capacity of 310 liters discussing today has the designation OM651 focuses... Adults and the regulator in the fuel, avoiding overflow with the OEM turbocharger the sills, fenders, and. Om646 EVO has 90 parts replaced a leak in the C class car estate washers under the nozzles car most. Controls the length of the channel is damaged new modified turbocharger and charge intercooler!