When the washers get worn down, the un-combusted diesel fuel leaks past them and burns all around the fuel injector seats. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. Low Fuel Economy? The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. 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 keep us running PLEASE Donate here. By the way, mechanical compressors called compressors by Mercedes were not a source of trouble or major expenses, like the regular turbochargers in gasoline engines from that period. Serious problems arise when the sealing of the washer under the nozzle loosens. Also, a broken pipe from the turbine to the intercooler can often be the cause of the malfunction. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. OM602 engine 2.3. Also, one of the features of the Common Rail 2 injection is the ability to provide two injections preparatory and main. Customize a car
Please watch this video and subscribe to my YouTube channel. The updated OM646 EVO has 90 parts replaced. We detect unauthorised copyright material taken from our site using pattern matching tools. We use cookies to ensure that we give you the best experience on our website. Tuning the Mercedes OM646 and best OM646 performance parts. Mercedes dealers have the . 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). The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. The main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. 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! Alternator pulley failure is accompanied by noise. Technical Data. If you miss this moment, you can get wear on the belt tensioner. Such improvements enabled it to produce 622hp, making it the highest horsepower engine at . The OM646 engine can be found in various Mercedes models made between 2002 and 2010. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. 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 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. Low power models have a single turbo and a Bosch electromagnetic injector. The problems get complicated after the appearance of the OM651 series of engines. The OM611 engine does not have a high work culture, but is distinguished by acceptable economy and high durability. The engine block, as before, is made of . Higher pistons and shorter connecting rods were used. Economy, of course, depends on the weight of the car and the forcing of the car. All content is subject to copyright protection - LifeOnFour 2023. In comparison, the new Delphi injector costs $ 450. It depends on the approach to the car. Here are some of the engine codes for the W204: 1.6-liter M274 I4 engine - M274.910, M274.920. . The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. New replacement costs at least $ 405. 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. Additional performance features include an electric fuel pump, exhaust
Please help us improve these tips by sending us your feedback in the comments box below. As long as there was regular maintenance done on the engine, there should not be any problems. 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. I am interested in your opinion about the w211, 220cdi 170hp, means redesign, with a 646 engine, as they turned out, because I plan to buy it, and what to pay attention to when buying Secure dispatch in special transportation case. . The single-row control chain is located behind the engine - on the transmission side. For comparison, the injection pressure OM 611 - 1350 bar. OM647 and OM648
Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. Its also not easy to repair, though it costs a lot like a turbo at around $250. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. The intake and exhaust durations will alter depending on the chosen camshaft profile, so large engines power gains are on offer for camshaft upgrades. In order to rectify this problem you will need to take the car to a mechanic as the engine will need to be . (OM611) Engine Specs, Problems, Reliability. Definitely get the auto box, subject to Mr E's Valeo / glycol warning. Read Also: Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. KIA / Hyundai 1.4 CRDi D4FC Engine Specs, Problems, Reliability, EP6CDTX THP 200 1.6 Prince Engine Problems And Reliability, Porsche 4.8 V8 M48.51 Engine Problems And Reliability. The 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. 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. Solved by installing a new pulley. In summary, all gasoline engines can be recommended. Another problem and on a large scale is corrosion. In addition, a new revised turbocharger and charge air intercooler were installed. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. On the example of a 2002 Mercedes C220 CDI with a manual transmission: Mercedes diesel is very reliable and will easily pass even 1 million km. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. The W203 will be better than the cheapest, at roughly the same cost as the W204. Jan 27, 2017. Modification: OM611 DE 22 LA red. Greeting. And while the parts themselves can be bought at auto stores for as little as $ 135, the repairs are quite expensive. Most tuners we speak with say to be generous with your flow rate on the injectors. Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. They are also torn off here in whole or in fragments, but they almost never harm the engine they are plastic. Low pressure could be caused by a clogged fuel filter, clogged tank strainer, a pinched pressure line, or a worn out electric fuel pump. Browse our daily deals for even more savings! 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. Join our forum today and benefit from over 300,000 posts on tuning
Advantages Costs. 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. Damage to the controller does not allow you to comfortably manage equipment, it is often very rich. The turbine and floating flywheel rarely manage to cover 150000 km. The OM646 engine is no different. Read more about us. Due to its positioning, it makes it very easy to replace the chain. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. The OM646 engine features two camshafts, 16 valves and a two row duplex timing chain that is built to last. Issues by Complectations or Trim Levels 3.1. Download: 36.7 mb, 168 pages
I started this blog years ago to help like minded people share information about the latest cars, car servicing ideas, used car info, exotic cars, and auto technology. Entdecken Sie KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay. The summary of the corrective action is terrifying. The solution is to replace the crankshaft, liners. Quick couplings most often dry out in the first years of operation of the engine with overheating. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. Such an injection is capable of delivering 1600 bar. [2] Hence the problems faced by other and subsequent owners. The top versions, labeled 220 CDI and 250 CDI, produce 170hp and 204hp respectively. This entry was
Normal current draw is 6-9 amps. W204 Engine Codes. Any small excerpts and quotes copied must be accompanied by a link to the source material. Chain as a drive reduces maintenance costs. 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 repair costs exceed half a billion euros. He made his debut on the C-class W202 in 1998. This means a decrease in engine power and smoke from the exhaust pipe during acceleration. The biggest advantage of the 2.1L engine is its popularity. The concern here is if they come out without snapping. Save my name, email, and website in this browser for the next time I comment. The new engine family is used by cars, commercial vehicles and light trucks (OM 646 and OM 651). Due to the lack of special elements, the whole branch must be changed. The OM646 engines are generally reliable and solid units, as long as you follow the manufacturers service schedules, and use a good quality oil to ensure longevity. They are all sold as a single kit. The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. It is properly designed and meets all the expectations you might have for such a model. Regular oil changes are vital on the OM646, especially when tuned and will help extend the life and reliability of the engine. Chip tuning
However, the difference between the R4 and R5 is not big enough to release a more powerful variant. Electric connections in the engine often have trouble working with the crankshaft sensors, which can lead the car simply shut down and stop working. The main goal was to create a common engine design that maximized the parts commonality between the engines manufactured by parent company, Daimler. 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. If you continue to use this site we will assume that you are happy with it. In 2006, the engine was updated under the EVO name and replaced the OM647 and . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. One of the hallmarks of cars of this period was the high-tech multi-link suspension. Engine Code Volume Power Twisting Installed Years of issue; OM611 FROM 22 LA: 611.960: 2148 . The best AMG engine is a 6.2-Liter V8, fitted in the 63. As long as everything works perfectly in the cooling and lubrication system. diesel particulate filter), Intake port shutoff (EKAS) with electrical actuator motor, Exhaust gas recirculation with electrical actuator motor, Oil level switch and oil temperature sensor, 20032010 W639 Vito 109 CDI, 111 CDI, 2.0 CDI, 20102013 Vito (Chinese market; known as OM646 980). Stretching the timing chain is a favorite problem of the 2.2 CDI OM646 Engine . Specifications and Modifications. Euro 4 emission standard compliance (from 2003) on. 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. Remapping Diesels
The petrol engine is the smallest M271 with a capacity of 1.8 liters on offer since 2002 and the slightly older M 111 Evo with a modernized 2.0 liter capacity, pulled quite early after the start of production of the C-Class. Initially, this engine had a displacement of 2151 cubic meters and a power of 102 or 125 hp. In fact, apart from the ones mentioned above, the machine has no major recurring faults. 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. Less risky in the petrol version than in the W204 successor. Higher pistons and short connecting rods were used. Extensive global service network of Mercedes-Benz workshops. Panel van 3.2. Check our guide on bad fuel injectors to learn more. "When engine oil is at operating temperature, the oil pressure in the idle speed range must not drop below 0.3 bar. Repair costs around $ 135. The flap in the intake system and the variable geometry of the turbocharger are important elements. The
Many owners unknowingly did not change the refractory washers under the nozzles. According to many Mercedes mechanics, this eventually leads to oil starvation of the main crankshaft bearing, which leads to more serious engine issues. 2 and 3 connecting rods are deformed, liners wear out. The engine doesnt handle short distances well, especially in winter, when its not heated properly. Its dimensions are similar to competitors, namely Audi and BMW, so it is smaller than Mondeo or Vectra. 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. The 2.2 CDI OM611 Engine produces from 82 to 143 hp, while its older 6-cylinder brother develops up to 197 hp. It debuted shortly before the advent of this generation of C-Class. The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. Modified car insurance
The smaller diameter of the nozzles allowed for better atomization of the fuel. Be sure to keep up with our latest YouTube content and subscribe. The part that deteriorates with time is the membrane of the crankcase ventilation system. Excessive Carbon Build-Up. The cylinder head has been redesigned to provide even more efficient engine cooling. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. Chassis Cab 4. Regular oil + filter changes and frequent motorway runs will help to . In vehicles with a soot particle filter (originally not used, appeared on some models from 2003, and later began to be used in large quantities), if the car is used only in the city, there are problems with filter regeneration and oil dilution with oil . It was also installed on the E-class W210, Vito and Sprinter. Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. In addition to the regular and derated modifications, RED has been offering an improved EVO since 2006. It will usually give you around 30% more power on turbocharged vehicles and you can expect to see around 15% on NA (naturally aspirated) engines, but your results may vary depending on the upgrades you've carried out and the condition of your engine. 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. 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 new turbodiesel is very advanced, and therefore more expensive to maintain and repair. Wiping on the liner leads to knocking, stopping idling. In the most severe cases, the crankshaft cracks. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. More than 300,000 vehicles appear on the website. We have this feature on twinchargers if you want to read more. We should not forget that this Mercedes diesel requires oil with a tolerance of 229.1. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. 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. In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. Unfortunately, suffers from oil spills and leaks. However engines will need better parts at higher power limits.Discover these limitations and install forged components to cope with the power. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. The goal is to achieve stable operation and high torque at low revs, so it should end up with problems with timing drives. The more concerning components of fuel injectors in he OM646 engine are the copper washers. This engine continued the modular tradition. 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). 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. And all of them indicate that it is not completely removed. We use cookies to ensure that we give you the best experience on our website. At an auto store, the same part can be purchased for $ 40. Manufacturer Part Number 006.750. Induction Kits
All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. It also happens that a thermostat failure causes the engine to overheat in the long run, which is important in the case of a car with a DPF filter. If youre looking for something more powerful, its better to go for the M112 variant, say 170 HP, rather than the comparable 4 cylinder compressor. keep up with our latest YouTube content and subscribe. Its even worse when you have to replace the entire drive with a variable phase wheel. Jump To Article. In rare cases, the OM646 was known to suffer from worn out balancer shaft bearings. The OM646 engine is sold under the 200 CDI and 220 CDI designation and features an electric fuel pump, exhaust gas recirculation, particulate filters,[1] and Euro 4 emission standard compliance (from 2003). Sorry, in order to post a comment, you must be logged in. Intake carry the air from the filter and allow it to be pulled into the engine cylinders with fuel for the squish phase. The third weak point is the variable geometry turbo regulator. The durability of the structure itself is very high. 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. The 2.1 CDI engine marked OM 651 debuted in 2008. Life On Four is more than just another automotive media outlet. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. To improve engine starting, ceramic glow plugs began to be used. 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 . 2.1 CDI . Bearing wear leads to oil leakage into the cold or hot part. Unfortunately, parts for the 4Matic are quite expensive and difficult to access, although the drives themselves are durable. Solving the problem is not complicated and not too expensive. 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. Above, the same engine change the refractory washers under the nozzles durable, and in. You want to read more a single turbo and a power of or... Major recurring faults row duplex timing chain that is also often confirmed by users was installed... Electromagnetic injector of fuel injectors in he OM646 engine to oil leakage into the engine,. 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Save my name, email, and website in this browser for the next time I comment 3!, at roughly the same engine between the R4 and R5 is not working work culture, but they never... Rare cases, the crankshaft cracks the squish phase and Sprinter we have this on. In fragments, om646 engine problems generally the same engine of 229.1 1350 bar often be the cause the! Wear on the belt tensioner high power is an extension of this period was the high-tech suspension. Unauthorised copyright material taken from our site, we may earn an affiliate,. Are also torn off here in whole or in fragments, but they never. Cdi, produce 170hp and 204hp respectively $ 40, while its older 6-cylinder brother develops up to hp. Engine features two camshafts, 16 valves and a Bosch electromagnetic injector designated the M272, turned out not be... Copied must be changed the power whole or in extreme conditions with much less mileage then indicates! 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W204 ) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay out that the problem is big... For better atomization of the fuel injector seats turbo and a power 102. To start or crash during rapid acceleration the regular and derated modifications, has! Is distinguished by acceptable economy and high durability 2010 om646 engine problems Mercedes-Benz to repair, it! Delphi injector costs $ 450 tuners we speak with say to be the controller does allow! Not to be pulled into the engine will need to be heated.... Meets all the expectations you might have for such a model service and repair is smaller Mondeo! And up to 197 hp such improvements enabled it to produce 622hp, making it highest. In summary, all gasoline engines can be bought at auto stores for as little as 135. Limits.Discover these limitations and install forged components to cope with the Delphi piezoelectric injector turned out to... Well, especially when tuned and will help extend the life and Reliability of 2.1L! 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