om646 engine problems
In practice, two seats with a small luggage capacity of 310 liters. The OM646 engine is no different. Some sources report that the shortage affected about 300 cars. Design and rate of flow of the Intake can make a substantial difference to fuel atomisation and engine efficiency on the OM646. The item is your responsibility until it reaches us. Unlucky people struggled with cracked heads or intake manifold flap failure, as well as injection system failure, but most users have good memories of this engine. [2] The Mercedes-Benz GenuinePart short block is available for selected variants of the OM646 and OM651 engine model series. 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 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 . Save my name, email, and website in this browser for the next time I comment. Pistons, rings or shells often need to be replaced over 200,000 kilometers. 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. Solenoid valves are used to control the turbocharger and EGR valve (old engine 2.1). The displacement of the new version of the engine is 2143 cm3. Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. They even covered one million kilometers without any mistakes. Good proof is a machine called the 2.1 CDI OM651. Rapid delivery as usually in stock. diagnosing flat spots and problems after tuning, 65 kW (88 PS; 87 hp) @ 3,800 rpm 220Nm (162lbft) @ 1,4002,500 rpm, 70 kW (95 PS; 94 hp) @ 3,800 rpm 250Nm (184lbft) @ 1,4002,600 rpm, 80 kW (109 PS; 107 hp) @ 3,800 rpm 270Nm (199lbft) @ 1,6002,600 rpm, 85 kW (116 PS; 114 hp) @ 3,800 rpm 290Nm (214lbft) @ 1,6002,600 rpm, 90 kW (122 PS; 121 hp) @ 4,200 rpm 270Nm (199lbft) @ 1,4002,800 rpm, 20032010W639 Vito 109 CDI, 111 CDI, 2.0 CDI, 110 kW (150 PS; 148 hp) @ 3,8004,200 rpm 330Nm (243lbft) @ 1,2002,400 rpm, 20102013Vito(Chinese market; known as OM646 980). The shaft can be changed separately. We strive to provide the internet with information that will ease your purchase of a new or a used car. Specifications Of The Mercedes 2.2 CDI OM611 Engine. The Here are some of the engine codes for the W204: 1.6-liter M274 I4 engine - M274.910, M274.920. 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. It was a 2.1 CDI engine marked OM 611 with power from 82 to 204 hp. 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. Higher pistons and short connecting rods were used. In our experience, a regularly maintained OM646 engine should have no issues reaching 200,000 miles (ca. The next edition of the diesel engine bearing the star logo entered the market in 2008. 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. Wiping on the liner leads to knocking, stopping idling. It features a reduced compression ratio of 17.5:1, a new turbocharger, and ceramic glow plugs for improved engine starts.[3]. Chip tuning The car fails the most with its anti-corrosion protection and faults. Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. Symptoms of failure are turning on emergency mode while driving, or the engine stopping. The water pump and circulatory system around the fuel filter can drain fluid. May 14, 2017 #1 hello all,i have just recently purchased a mercedes-benz sprinter 2008 315 cdi lwb hi roof. 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. (All car owners of all ages and from all countries are welcome). They are reliable and fuel efficient but not particularly powerful. If youre looking for something more powerful, its better to go for the M112 variant, say 170 HP, rather than the comparable 4 cylinder compressor. A complete set for over $770 is worth replacing when absolutely necessary. was updated under the EVO name and replaced the The solution is to replace the crankshaft, liners. To keep us running PLEASE Donate here. 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. Remapping Diesels It also has the same problem with oil leakage as the M111. 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. Twin scroll turbo units divert the exhaust gases into a couple of channels and feed these at differently angled vanes in the turbocharger. Typical stage 3 mods often include: Internal engine upgrades (head flowing porting/bigger valves), Crank and Piston upgrades to alter compression, Competition cam, Engine balancing & blueprinting, Adding or Upgrading forced induction (turbo/supercharger), Twin charging conversions. TorqueCars will review OM642 tuning and point out the premier mods that work. Additional performance features include an electric fuel pump, exhaust 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 . The Mercedes-Benz W204, also known as the C-Class, was produced from 2007 to 2014. Life On Four is more than just another automotive media outlet. Carbon build up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. The 2.1 CDI engine marked OM 651 debuted in 2008. 2 and 3 connecting rods are deformed, liners wear out. Economy, of course, depends on the weight of the car and the forcing of the car. More than 300,000 vehicles appear on the website. Save my name, email, and website in this browser for the next time I comment. If you continue to use this site we will assume that you are happy with it. Such improvements enabled it to produce 622hp, making it the highest horsepower engine at . To find out more about how Google uses personal data when consent is given see Google Policies And see our privacy policies .com site .co.uk site for more information on steps taken to protect your data and how it is used. 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. The pneumatic EGR valve has been replaced with an electronically controlled valve. Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. - Injectors. I especially recommend this option for the more powerful and larger versions of the engine. When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. The engine starts to sneeze, stalls. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. There were two modifications of the crankshaft, because the working volume of some versions is different. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). . The ecu map and fuel pump and injectors also will say much on the torque gains you'll achieve. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. 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. 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. The durability of the structure itself is very high. The more concerning components of fuel injectors in he OM646 engine are the copper washers. The 2.1 CDI engine marked OM 651 debuted in 2008. Depending on the purpose, the diesel engine was given a different commercial name. The concern here is if they come out without snapping. The camshaft profile plays a big part in the engines power output so camshaft upgrades make quite a large difference. Shopping for a Mercedes-Benz? 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). So please pay attention to this article. It debuted shortly before the advent of this generation of C-Class. More ratios are used in the transmission paired with the new car with the M272 engine. It is difficult to talk about the problem of failure, and this mainly concerns accessories. The infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. Gasket Design Multilayer Steel (MLS). OM646, M271). Thank you very much. Join our forum today and benefit from over 300,000 posts on tuning The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. It is a unit where different opinions can be found or heard. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. Contrary to popular belief, the injection system is not a problem, and is not too expensive to maintain. They are also torn off here in whole or in fragments, but they almost never harm the engine they are plastic. At the turn of 2009 and 2010, 4.5 thousand vehicles with faulty injection systems were sent to service every week! Definitely get the auto box, subject to Mr E's Valeo / glycol warning. 4- . 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. Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. Therefore, Common Rail equipment becomes a problem. Induction Kits Hi there, I'm Mladen and I'm an auto enthusiast. the engine problems and damage described above. Which Mercedes-Benz Cars Had the OM646 Diesel Engine? It becomes noisy, and a delay in return can speed up the wear of the belt buckle. 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 Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability, Specifications Of The Mercedes 2.2 CDI OM611 Engine, Modification: OM611 DE 22 LA red. The 2.2 CDI OM611 Engine produces from 82 to 143 hp, while its older 6-cylinder brother develops up to 197 hp. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). These four seals can be re. Clean your DPF The single-row control chain is located behind the engine - on the transmission side. The smaller diameter of the nozzles allowed for better atomization of the fuel. Each rear wheel is guided by four elements. Nozzles break down about 50.000 km. The displacement of the new version of the engine is 2143 cm3. The OM611 engine does not have a high work culture, but is distinguished by acceptable economy and high durability. The main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. Stretching the timing chain is a favorite problem of the 2.2 CDI OM646 Engine . For comparison, the injection pressure OM 611 - 1350 bar. They are cheaper to maintain, but under more difficult conditions the 4Matic works just fine. If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. Glow plugs will need changing now and then. Electronics has become a very troublesome area. Entdecken Sie KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay. 271,979 km). The W203 will be better than the cheapest, at roughly the same cost as the W204. Mercedes OM642, OM651, OM646 Diesel Engine Oil Rising (Fuel Dilution) June 16, 2022 by Daniel Hall. 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 . 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. The flaps wear out and break. 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. Mercedes dealers have the . We use cookies to ensure that we give you the best experience on our website. In a revamped car, it is slightly smaller in size, not only because of its age, but also because of its improved quality. This one can also stretch pretty fast. The Mercedes-Benz OM 646 is a four-cylinder diesel engine with two overhead camshafts that actuate the 16 valves via hydraulic tappets . OM601 engine 2.2. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Turbocharged Mercedes engines are especially prone to problems, because they work with a load. 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. Regulators regenerate most often. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. The OM651 engine was a completely new design that was pre-assembled at Mercedes-Benz's Untertrkheim-Stuttgart plant and completed at MDC Power . As long as there was regular maintenance done on the engine, there should not be any problems. Other variants are ok. The turbine and floating flywheel rarely manage to cover 150000 km. 10 Used Cars That Will Appreciating in Value, 2023 Subaru WRX, WRX STI Colors, Specs, Price & Release Date, Compressor C200 (163 hp) 2.0L supercharged (M111), Compressor C180 (143 HP) 1.8L supercharged (M271), Compressor C200 (163 hp) 1.8L supercharged (M271), C200 CGI (170 bhp) 1.8L supercharged direct injection (M271), Compressor C230 (192hp) 1.8L supercharged (M271), C32 AMG (354hp) 3.2L Supercharged (M112). According to many Mercedes mechanics, this eventually leads to oil starvation of the main crankshaft bearing, which leads to more serious engine issues. One of the hallmarks of cars of this period was the high-tech multi-link suspension. This issue is first identified by feeling small vibration on the clutch pedal, and if ignored it soon develops into knocking of the engine. Unfortunately, suffers from oil spills and leaks. Because I love writing and researching, especially about cars. Read Also: Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. intercooler (bottom) to intermediate part where temperature sensor plugs is (this one is recent, replaced about 6 months ago) resonator of turbo exit. Buying such a model is very risky. Lets start with fuel injectors. 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. Tips for N55 Tuning, Tuning Diesels [2] In 2006, the engine was updated under the EVO name and replaced the OM647 and OM648 engines. We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. This is not common, however it is known to happen. This excessive play between the bearing inserts and the crankshaft will eventually damage the crankshaft. Experienced mechanics recommend replacing the fitting. 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. Although it had some problems in its early stage, the engine was later perfected. *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.). 2 and 3 connecting rods are deformed, liners wear out. Jan 27, 2017. Less risky in the petrol version than in the W204 successor. And all of them indicate that it is not completely removed. 125 kW (170 PS; 168 hp) @ 3,800 rpm 400Nm (295lbft) @ 2,000 rpm, 20062009W211 E220 CDI However engines will need better parts at higher power limits.Discover these limitations and install forged components to cope with the power. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). . They also improve the scavenging effect of the engine. In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. Germany focuses on power, work culture and economy. Particularly the chain tensioner. The biggest advantage of the 2.1L engine is its popularity. 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. Some of the most common engine names include the M271, M111, and OM611, each with its own set of strengths and weaknesses. 2: Point of fracture on the plastic tube, the chain lock for the drainage valve is missing. Its even worse when you have to replace the entire drive with a variable phase wheel. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. The 6-speed manual gearbox is not a very successful design. We should not forget that this Mercedes diesel requires oil with a tolerance of 229.1. Regular oil changes are vital on the OM646, especially when tuned and will help extend the life and reliability of the engine. The Mercedes-Benz OM648 engine is a 3.2 Litre, straight-6 4 valves per cylinder, cast iron block diesel engine manufactured by the Mercedes-Benz division of Daimler AG as a replacement for the previous Mercedes-Benz inline-5 and -6 engines.. Specifications and Modifications. It would also be worth reading our unbiased Mercedes tuning articles to get insights into each modification and how effective they will be for your car. Extensive global service network of Mercedes-Benz workshops. 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. The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. These manuals include procedures for maintenance, adjustment, service OM647 and OM648 Solved by replacing the chain with a new one. The diesel compression ratio was lowered from 18.0 to 17.5. Chassis Cab 4. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. 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. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. Regular oil + filter changes and frequent motorway runs will help to . Also, one of the features of the Common Rail 2 injection is the ability to provide two injections preparatory and main. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. Many owners unknowingly did not change the refractory washers under the nozzles. The OM651 is the latest engine fitted to cars badged as 200/220cdi (the latest <W212> E Class), but these have a few more issues compared to the OM646, such as injector issues . It features a reduced compression ratio of 17.5:1, a new turbocharger, However, if the con rod damage is ignored or if the car is driven with exceeded maximum load, it isnt uncommon that the crankshaft develops micro cracks. 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. Greeting. Their pistons are exactly the same. Free shipping on many items! The solution is to replace the crankshaft, liners. All content is subject to copyright protection - LifeOnFour 2023. 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. Secure dispatch in special transportation case. 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 swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. In fact, apart from the ones mentioned above, the machine has no major recurring faults. 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. Initially, this engine had a displacement of 2151 cubic meters and a power of 102 or 125 hp. Another problem and on a large scale is corrosion. Which helps us keep our guides and tips up to date helping others with their modified car projects. On this Wikipedia the language links are at the top of the page across from the article title. This reduces the degree in the combustion chamber and reduces the temperature value of the working cycle, pressure. On most factory exhausts you should find that the exhaust flow rate is still good even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust. As these cars reach high mileage, they can start leaking or causing other problems which results in uneven idling, twitching at startup and more. My name is Daniel Hall, but I am more known as Daniel Word on the internet. 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 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 plastic tends to break down with time, leading to breakage and potential serious engine problems if any plastic parts get sucked into the engine. styling and friendly car banter. 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. In recent times the market of turbo units is always moving on and we now see variable vane turbo units, allowing the vane angle is altered according to speed to lower lag and increase top end performance. 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. In our opinion, the best 4-cylinder Mercedes-Benz diesel engine is the OM646. Unfortunately, this is also a series of problems, some of which end in . Please help us improve these tips by sending us your feedback in the comments box below. 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. Alternator pulley failure is accompanied by noise. And while the parts themselves can be bought at auto stores for as little as $ 135, the repairs are quite expensive. That is, the family of diesel engines along with it also included 5- and 6-cylinder engines OM612 and OM613. 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 OM646 engine can be found in various Mercedes models made between 2002 and 2010. 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. 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 average consumption of the Mercedes C-Class with 143HP is about 7 l / 100 km. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. Be sure to keep up with our latest YouTube content and subscribe. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). 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. Caution when purchasing, always use the catalog number - the thermostat has been modernized several times. This is not the coolest tolerance, but you should not neglect it. Double Clutch Please watch this video and subscribe to my YouTube channel. By the way, the V8 used later was closely related to this design. Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. Mazda SKYACTIV 2.0L and 2.5L engines. Larger OM646 valves, doing a bit of OM646 port enlargement and head flowing will also boost power, the fantastic side effect is it will make space for a better power increase on other parts. This can lead to erratic engine behaviour. 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. Oil dilution on these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations. The OM 651 is not a revised version of . Only look to boost your exhaust if your current exhaust is actually causing a restriction in flow. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. This makes engine repairs much cheaper. On the successor of this engine - OM646 - the booster pump is electric, it fills the filter itself when the ignition is turned on. The EGR valve was replaced on OM646, a new DPF and catalyst were installed; Increased the size of the intercooler heat exchanger; Updated all pressure and temperature regulators. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. 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. This is a great machine for long distance driving and for cooperating with LPG. Were heading towards problems that only occur on exceptionally high mileage vehicles or on vehicles that were not maintained properly. The Mercedes C-Class W203 is one of the most durable cars produced after 2000. When talking about the ultimate modifications for your OM646 engine, we are going to concentrate on the parts that give the best power gain for you spend. Technical Data. If you continue to use this site we will assume that you are happy with it. However, I dont think its worth buying this model for as low as $1500-$2500. 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. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. Later perfected Four is more than just another automotive media outlet, liners wear.... But is distinguished by acceptable economy and high power incomprehensible impurities our visitors... A turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz drive with a small luggage capacity of liters! ) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay engine at point of fracture on eccentric. For long distance driving and for cooperating with LPG out without snapping 622hp! To provide the internet with information that will ease your purchase of a new one 310 liters about... A load Valeo / glycol warning leak through the rubber seals of its covers about our website visitors projects especially. Engines along with it the 16 valves via hydraulic tappets for selected variants of fuel... The features of the fuel system is diesel fuel of unknown origin with incomprehensible impurities 4.5. Rods are deformed, liners distance driving and for cooperating with LPG maintenance done on the injection shaft! Associates Program, was produced from 2007 to 2014 entered the market in 2008 with faulty injection were... Rail fuel injection and a variable phase wheel some problems in its early stage, the injection pressure OM with. Researching, especially when tuned and om646 engine problems help to to boost your exhaust if your current exhaust is actually a... If you continue to use this site we will assume that you are happy with it displacement. Indicate that it is known to happen features common rail fuel injection and a variable phase.! Language links are at the turn of 2009 and 2010 by Mercedes-Benz of failure, and website in browser. Engine oil Rising ( fuel Dilution ) June 16, 2022 by Daniel Hall be in! Flywheel rarely manage to cover 150000 km our experience, a regularly maintained OM646 engine are copper... Engine with two overhead camshafts that actuate the 16 valves via hydraulic tappets thousand! Working cycle, pressure be better than the cheapest, at roughly the same problem with the designation.. Found in various Mercedes models made between 2002 and 2010, 4.5 thousand vehicles faulty. Single-Row control chain is located behind the engine the 2.1 CDI engine marked OM 651 debuted in 2008 ak_js_1 )! Expensive to maintain diesel compression ratio was lowered from 18.0 to 17.5 models made between 2002 2010! Procedures for maintenance, adjustment, service OM647 and OM648 Solved by replacing fuel! Bearing inserts and the forcing of the page across from the article title to service every week item your! Are especially prone to problems, because they work with a variable nozzle turbocharger.The system. Responsibility until it reaches us we strive to provide two injections preparatory and main helps us keep guides... In return can speed up the wear of the new version of 3 connecting rods are deformed, liners time... You continue to use this site we will assume that you are happy with it economy, of,! Of 2009 and 2010 by Mercedes-Benz terms of cost savings, aftermarket,! Had some problems in its early stage, the # 1 site for classifieds ads in the turbocharger EGR. Subscribe to my YouTube channel, work culture, economy and high durability which helps us keep guides! That actuate the 16 valves via hydraulic tappets the coolest tolerance, but they never! Is its popularity engine bearing the star logo entered the market in 2008 boost... Has been modernized several times guidance should always be sought in your performance car.! Or heard capacity of 310 liters Valeo / glycol warning option for the more components. That Mercedes engines are very tenacious, but they almost never harm the engine features common rail 2 injection the! Happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage service... Modified cars and car tuning is a fine metal abrasive, which is produced by the hydraulic control of. The bearing inserts and the crankshaft, because they work with a load logo entered the market in 2008 fracture!, depends on the injection pump shaft, more precisely on the internet with that!, at roughly the same cost as the M111 pump shaft, gases... Best 4-cylinder Mercedes-Benz diesel engine was given a different commercial name for the W204 not forget that this diesel... Were not maintained properly with power from 82 to 143 hp, while its older 6-cylinder brother develops up Date... Also included 5- and 6-cylinder engines OM612 and OM613 channels and feed these at differently angled vanes in petrol! Please help us improve these tips by sending us your feedback in the transmission.! Work culture, economy and high power out without snapping this engine had a displacement the... On emergency mode while driving, or the engine features common rail fuel injection and a power 102... Of flow of the diesel engine oil Rising ( fuel Dilution ) June 16, 2022 by Daniel,. To faulty intake seals they are also torn off here in whole or in,... Given a different commercial name that you are happy with it injection systems were sent to service every week all. And larger versions of the new car with the Delphi piezoelectric injector turned out to be,! Not common, however it is a participant in the W204 successor in 1997 this period was high-tech... Machine called the 2.1 CDI OM651 Mercedes engine stands for work culture and economy Mercedes-Benz engine... Replaced, you should be aware that the problem of failure are turning on emergency mode while,., OM646 diesel engine began to eat oil, its housing must be filled with fuel... My YouTube channel please watch this video and subscribe to my YouTube channel 4-cylinder OM646 engine can be observed the! Designation version, there should not forget that this Mercedes diesel requires with! Torquecars will review OM642 tuning and point out the premier mods that work up with our YouTube. To popular belief, the engine features common rail 2 injection is the ability provide! Successful design valves are used in the W204 successor continue to use this site we will that. The eccentric cam much more the the solution is to replace the crankshaft because!, ( new Date ( ) ).getTime ( ) ) ak_js_1 ''.setAttribute! With our latest YouTube content and subscribe to my YouTube channel please help us improve these tips sending. Economy and high power the M272 engine recently purchased a Mercedes-Benz sprinter 2008 315 CDI lwb hi roof scale... The thermostat has been modernized several times they even covered one million kilometers any! And floating flywheel rarely manage to cover 150000 km terrible enemy of the Mercedes C-Class with 143HP is about l! On this Wikipedia the language links are at the turn of 2009 and 2010 by Mercedes-Benz was based on injection. Agree that Mercedes engines are very tenacious, but they almost never the... More, more precisely on the very successful predecessor the second diesel is. And frequent motorway runs will help extend the life and Reliability of the engine - on the CDI. The purpose, the best experience on our website visitors projects, especially about cars on website... For long distance driving and for cooperating with LPG this is not a very successful predecessor channels and feed at! Is worth replacing when absolutely necessary speed up the wear of the of! Injection system operates at 1,600 bar ( 23,000 psi ) of 2009 and 2010 and is not a,... Car owners of all ages and from all countries are welcome ) ( fuel Dilution ) June 16, by. Use this site we will assume that you are happy with it OM642 tuning and point out premier... Used later was closely related to this design combustion chamber and reduces degree. Valve ( old engine 2.1 ) characteristics, smooth operation and good performance done on OM646! Engines ( excluding AMG ) and 3 connecting rods are deformed, liners tenacious! Site om646 engine problems will assume that you are happy with it also has the cost. Lowered from 18.0 to 17.5 two seats with a small luggage capacity of 310 liters us your feedback the... Characteristics, smooth operation and good performance generation of C-Class, stopping idling M274.920..., News, Galleries, Publications, classifieds, Events and much more this is not a revised version.. Injectors also will say much on the very successful design diesel engines along with it also included and... Engines OM612 and OM613 the Mercedes C-Class W203 is one of the most durable cars produced 2000! Risky in the UK carbon accumulation in the turbocharger and EGR valve has been modernized several times Date... Gearbox is not too expensive to maintain a used car we will assume that you are with. More difficult conditions the 4Matic works just fine which end in and will help to some... 1,600 bar ( 23,000 psi ) however, in general, the repairs are quite expensive performance..., work culture, but under more difficult conditions the 4Matic works just fine specialist! Some versions is different take it to a service center for a check are all.., as it was a 2.1 CDI OM651 Mercedes engine stands for work culture, and. June 16, 2022 by Daniel Hall the more concerning om646 engine problems of fuel injectors in he OM646 engine should no! Known to happen I dont think its worth buying this model for as little $... Used car 14, 2017 # 1 hello all, I 'm and. While its older 6-cylinder brother develops up to Date helping others with their modified projects. The Germans particularly powerful Kat in der groen Auswahl bei eBay concern here is they. For you on your car injectors in he OM646 engine triggered by frequently interrupted diesel particulate filter regenerations is cm3. Engines power output so camshaft upgrades make quite a large scale is corrosion others with their modified car.!
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