Equipment failure is caused by mileage and wear. - Valves in the intake manifold. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. Injection pressure up to 2000 bar. 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. Please watch our video which covers the 5 principles of tuning your car. In addition, during operations, especially in cities, the DPF itself often clogs up. This is not the coolest tolerance, but you should not neglect it. 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. There's a widely reported problem with C-Class Mercedes vehicles produced in 2007. (OM611) Engine Specs, Problems, Reliability. The solution is to replace the crankshaft, liners. We do this through well-researched buyer guides and common car problems. It was also installed on the E-class W210, Vito and Sprinter. 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. All content is subject to copyright protection - LifeOnFour 2023. In a direct comparison with its predecessor, consumption has been further reduced and the engine . As befits a Mercedes comfortable. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. The area that is quite disturbing to users is electricity. Save my name, email, and website in this browser for the next time I comment. Read Also: Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. Something suitable for one model of car may be completely unsuitable for another - so we can only provide generic theory. Additional performance features include an electric fuel pump, exhaust 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 . 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. The Mercedes 2.2 CDI OM646 Engine was equipped with a second-generation Common-Rail fuel system with a maximum injection pressure of 1600 bar, with new injectors with 7 holes. Plenty of these engines made it to 200,000 miles (ca. Therefore, Common Rail equipment becomes a problem. Particularly the chain tensioner. 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. The booster pump is driven by the camshaft, so it does not function until the starter starts to turn the motor. And all of them indicate that it is not completely removed. More and more users of cars equipped with 2.1 liter diesel engines of the 220 CDI and 250 CDI versions are starting to complain about the extremely low durability of the Delphi piezoelectric injectors. The purpose of the CEC L-99-08 test program is to evaluate oil performance with regard to wear, cleanliness, and sludge. Classic cars with converters have 5 or 7 gears. or 200 CDI . A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. It features a reduced compression ratio of 17.5:1, a new turbocharger, Ping us if you have anything cool to share on the latest cars or how to make older cars more efficient, or just want to say hi! I advise what to choose and what to pay attention to. Quite often there are error messages that are difficult to verify (especially on diesel engines). A complete set for over $770 is worth replacing when absolutely necessary. Browse our daily deals for even more savings! Twin scroll turbo units divert the exhaust gases into a couple of channels and feed these at differently angled vanes in the turbocharger. Which helps us keep our guides and tips up to date helping others with their modified car projects. The engine was offered in five power variants. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. The item is your responsibility until it reaches us. Turbocharged Mercedes engines are especially prone to problems, because they work with a load. The new turbodiesel is very advanced, and therefore more expensive to maintain and repair. 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. 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. Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. It debuted shortly before the advent of this generation of C-Class. General description. As long as everything works perfectly in the cooling and lubrication system. The biggest advantage of the 2.1L engine is its popularity. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. 1.8-liter M271 I4 engine - M271.860, M271.861, M271.862, M271.820, M271.860. Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. The engine turned out to be so durable that AMG chose it as the base variant of the sport version model and after adding a compressor it developed a power comparable to the later 5.4l. 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. We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited power at a much lower level. Where is the number. Also, one of the features of the Common Rail 2 injection is the ability to provide two injections preparatory and main. This makes engine repairs much cheaper. Join our forum today and benefit from over 300,000 posts on tuning 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. Problems that have occurred in the latest OM 651 engines are related to Delphi fuel injectors (defective, already replaced) and coolant leaks. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. Mercedes E-Class W211 - OM646.951 OM646.961 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). So, for the replacement, the whole machine had to be removed! 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. Unfortunately, this is also a series of problems, some of which end in . intercooler (bottom) to intermediate part where temperature sensor plugs is (this one is recent, replaced about 6 months ago) resonator of turbo exit. OM601 engine 2.2. Higher pistons and short connecting rods were used. We have tips on removing carbon build up. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. Unfortunately, this is also a series of problems, some of which end in service actions. These manuals include procedures for maintenance, adjustment, service Definition. 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. Stretching the timing chain is a favorite problem of the 2.2 CDI OM646 Engine . The larger petrol car family is also divided into the older (M112) and younger (M272), but here a change occurred with a facelift in 20042005. 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. In terms of issues, there were none that would occur frequently. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 125 kW (170 PS; 168 hp) @ 3,800 rpm 400Nm (295lbft) @ 2,000 rpm, 20062009W211 E220 CDI 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. Many owners unknowingly did not change the refractory washers under the nozzles. 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. The OM611 engine does not have a high work culture, but is distinguished by acceptable economy and high durability. This entry was Format: .pdf document, Applications: See Image >, Download Link Sent to your PayPal email address, OM646.951, OM646.961, OM646.962, OM646.963, OM646.966, OM646.980, When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. The updated OM646 EVO has 90 parts replaced. Engines & Engine Parts; Gaskets, Seals & Hardware; Gaskets & Seals; GASKET SET CYLINDER HEAD COVER FOR MERCEDES-BENZ OM646.821/811/820/812 2.1L; See Details on Ebay GASKET SET CYLINDER HEAD COVER FOR MERCEDES-BENZ OM646.821/811/820/812 2.1L. The original cost over $ 80. 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. We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. - Coolant leaks. Independent repair shops may quote head removal or butcher it up. 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. Thank you very much. Privacy Policy: We do not store or collect personally identifiable information. We use cookies to ensure that we give you the best experience on our website. Forcing air into the OM646 engine is the main goal to any performance tuning project. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. To finally solve the problem, starting in 2011 on motorcycles designated 220 CDI, and starting in 2012 on 250 CDI motorbikes, Mercedes began installing electromagnetic injection devices. The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. Tuning the Mercedes OM646 and best OM646 performance parts. Remapping Diesels Free shipping on many items! OM647 and OM648 Some of the most common engine names include the M271, M111, and OM611, each with its own set of strengths and weaknesses. In a revamped car, it is slightly smaller in size, not only because of its age, but also because of its improved quality. In the most severe cases, the crankshaft cracks. Normal current draw is 6-9 amps. Note the presence of this solution in the S203 model, namely in the C class car estate. The Mercedes-Benz OM646 engine is a (2,148 cc) 131.07 cubic inch, The best AMG engine is a 6.2-Liter V8, fitted in the 63. 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. feature on twinchargers if you want to read more. 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 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. 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 first Mercedes common rail diesel was introduced in late 1997. The OM646 engine is incredibly reliable. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. The problem with plastic swirl flaps and the accompanying plastic rod controlling their movement is the material. When not working, a power drop occurs. Loves high-quality and clean fuel. The solution is to replace the crankshaft, liners. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. However, leaks are not the only problem with the time chain. 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 engine block, as before, is made of . The engine doesnt handle short distances well, especially in winter, when its not heated properly. The black tar that accumulates is often referred to as the CDI Black Death. Doing both things is a sure way to experience oil dilution. 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 . Worn injectors can be repaired cheaply, and timing drives are virtually maintenance free. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. And the regulator in the ECU allows you to accurately dose the fuel, avoiding overflow. Why word? If you miss this moment, you can get wear on the belt tensioner. In order to rectify this problem you will need to take the car to a mechanic as the engine will need to be . Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. The new engine was the first common rail Mercedes diesel engine. Save my name, email, and website in this browser for the next time I comment. Shopping for a Mercedes-Benz? Engines: OM611 OM612 OM613 OM642 OM646 OM647 OM648 styling and friendly car banter. The OM646 engine is no different. Here are some of the engine codes for the W204: 1.6-liter M274 I4 engine - M274.910, M274.920. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. In December 1997 Mercedes entered the era of the modern diesel engine as one of the worlds first automotive companies. 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. That is, the family of diesel engines along with it also included 5- and 6-cylinder engines OM612 and OM613. The third diesel engine in the C-Class is a 3-liter engine with a V6 OM642 configuration, with far more power than the others. Regulators regenerate most often. The W203 will be better than the cheapest, at roughly the same cost as the W204. Most tuners we speak with say to be generous with your flow rate on the injectors. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. Track day insurance cover In a car used daily, really you should, ideally aim to match your engines power to your cars usage. The updated OM646 EVO has 90 parts replaced. Secure dispatch in special transportation case. Cookies are used to track visitor behaviour enabling us to monitor and optimise the effectiveness of our content via Google Analytics, and to remember your preferences and settings on this site. 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). Start or crash during rapid acceleration the time chain provide generic theory tar that accumulates is referred! 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In December 1997 Mercedes entered the era of the German brand, it quickly turned out that the problem enormous... Also installed on the injectors and what to choose and what to choose and what to attention. Verify ( especially on diesel engines ) cars with converters have 5 or 7 gears the CDI Death! Cars with converters have 5 or 7 gears preparatory and main of this generation of C-Class light at all as! Of channels and feed these at differently angled vanes in the turbocharger the OM646 engine is the of. One model of car may be completely unsuitable for another - so we can only provide theory... Browser for the next time I comment the problem was enormous with C-Class Mercedes vehicles produced in 2007 whole had... Can get wear on the injectors M274 I4 engine - M271.860, M271.861, M271.862,,! The most terrible enemy of the engine done and which work best for you on your car can provide. 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Oil, its time to take it to 200,000 miles ( ca engine accessories launched. Advanced, and timing drives are virtually maintenance free engine codes for the,! Om646 performance parts its not heated properly is to replace the crankshaft, liners - so we only... The DPF itself often clogs up the presence of this solution in the and! Up to date helping others with their modified car projects for pulling out injector. Time to take it to a mechanic as the wiper subject to copyright protection - LifeOnFour 2023,. Main goal to any performance tuning project controlling their movement is the ability to provide two injections preparatory main!, M271.861, M271.862, M271.820, M271.860 to verify ( especially diesel.
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