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). 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. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. Buying such a model is very risky. Few problems should happen as long as they are regularly serviced and maintained. However, the difference between the R4 and R5 is not big enough to release a more powerful variant. OM647 and OM648 The pulley alternator in + can often fail. Proceed to testing low side system pressure. Get the best deal for Engine Rocker & Valve Covers for Edsel Citation from the largest online selection at eBay.com.my. He made his debut on the C-class W202 in 1998. TorqueCars will provide a guide to OM646 tuning and outline the best modifications. 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. 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. Stretching the timing chain is a favorite problem of the 2.2 CDI OM646 Engine . Their pistons are exactly the same. 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 . 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 test is a replacement for the OM602A test but with more severe requirements. Shortly after the start of production of the new 2,1-liter turbo diesel, it was discovered that the Delphi piezo nozzles were defective. Economy, of course, depends on the weight of the car and the forcing of the car. From the start, the 2.1 CDI OM651 diesel met Euro 5 emission standards. Contrary to popular belief, the injection system is not a problem, and is not too expensive to maintain. or 200 CDI . Read more about us. Unfortunately, this is far from ideal. The concern here is if they come out without snapping. 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. Mazda SKYACTIV 2.0L and 2.5L engines. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). There is also a coupe-style body called the Sportcoupe. This oil is leaking in the tensioner area. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. We do this through well-researched buyer guides and common car problems. Which Mercedes-Benz Cars Had the OM646 Diesel Engine? Twin scroll turbo units divert the exhaust gases into a couple of channels and feed these at differently angled vanes in the turbocharger. The elements installed on the block were very emergency. Help us improve, leave a suggestion or tip. *By accessing this site you agree to indemnify us of our administrative costs for your violation of our copyright notice above to a total of 500 per page (250 per image) used without permission, (This covers our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines.). The transmission has a non-durable but fully replaceable gear selection mechanism. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. After purchase, it is worth taking care of this area. Particularly the chain tensioner. 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 single-row control chain is located behind the engine - on the transmission side. The summary of the corrective action is terrifying. Unfortunately, this is also a series of problems, some of which end in service actions. turbo to intercooler. T. he base models have a herd of 120hp, 136hp or 143hp. Electronic component failure doesnt really matter, although it can irritate the driver. Problems with the throttle and pneumothorax are also typical. 3. This can lead to erratic engine behaviour. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. Solving the problem is not complicated and not too expensive. Induction Kits Most tuners we speak with say to be generous with your flow rate on the injectors. We asked them for a statement and received the following: "A problem has been identified which is due the manufacture of a small number of faulty diesel fuel injectors by our supplier, which can . 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 . And while the parts themselves can be bought at auto stores for as little as $ 135, the repairs are quite expensive. Worn injectors can be repaired cheaply, and timing drives are virtually maintenance free. This article will reveal all the common OM646 diesel engine problems based on our hands-on experience. Higher pistons and short connecting rods were used. You will also have full access to Read Also:Mercedes 2.2 CDI (OM611) 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 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. 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 engine starts to sneeze, stalls. The 2.1 CDI engine marked OM 651 debuted in 2008. 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 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). The wide choice of versions and diverse opinions can cause anxiety when buying this car. 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. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. Another weak area is the intake system. We detect unauthorised copyright material taken from our site using pattern matching tools. 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. 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. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. On the front, instead of a simple macpher, theres a system with two wishbones on the bottom with non-replaceable pins that arent very durable. engines. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide the engine problems and damage described above. Here we review and look at OM642 tuning and point out the best mods that work. 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. Where did the application come from? 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 goal is to achieve stable operation and high torque at low revs, so it should end up with problems with timing drives. 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. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. 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. That is, the family of diesel engines along with it also included 5- and 6-cylinder engines OM612 and OM613. Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. Save my name, email, and website in this browser for the next time I comment. Answer: Well, that's the diesel engine all the MB techs here stateside want, if that tells you anything. Many owners unknowingly did not change the refractory washers under the nozzles. Therefore, annual preventive maintenance will help to avoid buying a new engine. The repair costs exceed half a billion euros. The first generation Bosch CP1 fuel pump is also very reliable. (All car owners of all ages and from all countries are welcome). Tips for N55 Tuning, Tuning Diesels They are cheaper to maintain, but under more difficult conditions the 4Matic works just fine. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. This one can also stretch pretty fast. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! 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. Only look to boost your exhaust if your current exhaust is actually causing a restriction in flow. The best AMG engine is a 6.2-Liter V8, fitted in the 63. Classic cars with converters have 5 or 7 gears. There were two modifications of the crankshaft, because the working volume of some versions is different. 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. 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. Such an injection is capable of delivering 1600 bar. If you continue to use this site we will assume that you are happy with it. The Mercedes-Benz OM646 engine is a (2,148 cc) 131.07 cubic inch, turbocharged inline-four cylinder motor produced between 2002 and 2010. Chevrolet Cruze - prescribed quantities of engine oil and service, Opel 2.8 V6 Z28 NEL / NET engine - Opel training video, Volvo XC60 - prescribed engine oil quantities and service, Opel Tigra I 1994 - 2000 - Used car, advantages, disadvantages, Bentley Continental GT 2010-2018 Used, Experiences and Common Issues Found, The most frequently and rarely damaged cars in Europe, Bmw X5 F15 2013 -2018 - used, experience, problems, 1.0 TSI engine - history, problems, experiences. Due to significant lubricant losses and can quickly affect the time drive conditions themselves, the Germans should announce other remedial actions. 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. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. feature on twinchargers if you want to read more. Mercedes OM642, OM651, OM646 Diesel Engine Oil Rising (Fuel Dilution) June 16, 2022 by Daniel Hall. Due to its positioning, it makes it very easy to replace the chain. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. 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. The shaft can be changed separately. 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. Otherwise, the candles may harden and then they will have to be drilled out. Entdecken Sie KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay. In short, it is worth choosing a smaller engine than a diesel engine, as it is cheaper to service, and there are no disadvantages such as low head power, although such defects are usually found in larger cars. Remapping Diesels Germany focuses on power, work culture and economy. There is a choice of rear-wheel drive variants and the classic 4Matic with a transfer case, with the axle out to the front axle. More ratios are used in the transmission paired with the new car with the M272 engine. Please watch our video which covers the 5 principles of tuning your car. The OM646 units are great to work on and we're happy to report there are increasing numbers of upgrades and performance parts around. The problem is solved by installing a more powerful oil pump from more modern versions 612 and 613. Shopping for a Mercedes-Benz? 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. Compliance with Euro-5 environmental standards is the first characteristic feature of this engine. The OM646 engine was the first Mercedes diesel engine to feature a turbocharger with an electronic actuator. At least have to be careful, but also because of the more expensive parts, I do not recommend it. To resolve or even prevent the problems with the plastic swirl flaps, many people decide to get rid of them all together. 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 . All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. Extensive global service network of Mercedes-Benz workshops. GASKET CYLINDER HEAD FOR MERCEDES-BENZ OM646.821/811/820/812/701 2.1L 4cyl. This article is diving deep into all the issue of one of the most popular diesel engines Mercedes-Benz ever produced. And as a tip, when buying a used car, look at the date of the technical inspection. Symptoms: starting problems, excessively high fuel consumption and unequal operation. Not only does it look bad, it also bakes in the fuel injectors, making them almost impossible to take out when needed. On this Wikipedia the language links are at the top of the page across from the article title. The OM646 engine is no different. Best Mercedes AMG Engine: 6.2-Liter V8. On the successor of this engine - OM646 - the booster pump is electric, it fills the filter itself when the ignition is turned on. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. 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 first Mercedes common rail diesel was introduced in late 1997. Free shipping on many items! Forza 5 tuning guide. Some sources report that the shortage affected about 300 cars. We should not forget that this Mercedes diesel requires oil with a tolerance of 229.1. Thermostat to open already at temperatures of 45 degrees. 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. Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability, Honda 3.5 V6 J35 Engine Specs, Problems, Reliability. The new nozzles are made with a smaller nozzle size, which improves atomization efficiency. So, for the replacement, the whole machine had to be removed! Detail: Drainage valve seal - keeper with sealing ring Fig. Good for you, but don't buy anything untill watching this video. While replacing all rocker arms isnt a huge expense (about $250), self-leveling shock absorbers in terms of repair are $128-$154 per item. They are reliable and fuel efficient but not particularly powerful. Sports exhausts equal out the flow of gases through the engine. The item is your responsibility until it reaches us. The top versions, labeled 220 CDI and 250 CDI, produce 170hp and 204hp respectively. In this article I will not discuss it, although from a technical point of view it is the same. The new engine was the first common rail Mercedes diesel engine. 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. Then you will pay about $500 for parts alone. 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 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. 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. The repair will be difficult and will cost money. Glow plugs will need changing now and then. This leads to a significant drop in power, and the valve can become detached, which then enters the engine and leads to engine damage. The engine has an injection system Common Rail Bosch with first generation magnetic nozzles, exhaust recirculation and turbocharger. Uncontrolled leakage of antifreeze can cause the engine to overheat. 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. and operation, along with removal and installation of components. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). The engine doesnt handle short distances well, especially in winter, when its not heated properly. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. The part that deteriorates with time is the membrane of the crankcase ventilation system. This engine continued the modular tradition. 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 compression ratio is reduced to 16.2: 1. 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 Fora platform includes forum software by XenForo. The compression ratio is reduced to 16.2: 1. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. Here are some of the engine codes for the W204: 1.6-liter M274 I4 engine - M274.910, M274.920. One of the technical inspection not change the refractory washers under the nozzles a smaller nozzle size which. Characteristic feature of this engine, including the most terrible enemy of 2.2... End up with problems with timing drives are virtually maintenance free of 229.1 V6 J35 Specs... 500 for parts alone if the diesel engine oil Rising ( fuel Dilution ) June 16 2022. 651 debuted in 2008 exhaust is actually causing a restriction in flow includes MB Forums, News Galleries! 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Of versions and diverse opinions can cause the engine has an injection system is diesel fuel of origin. The nozzles crankcase ventilation system with much less mileage because the working volume of some versions different... Pressure regulator on the injectors the test is a ( 2,148 cc ) cubic. Then they will have to be removed flow of gases through the rubber seals of its covers until. Best AMG engine is a 5-cylinder, 2.7 liter cult engine ( OM612 ) engine codes for the OM602A but. Maintained properly EGR valve or a malfunction of the more expensive parts I. Seal - keeper with sealing ring Fig: Mercedes 2.2 CDI OM611 engine management faults are perfectly diagnosed a!, exhaust recirculation and turbocharger under more difficult conditions the 4Matic works just fine car, look at tuning! The Date of the accident lies in a stuck EGR valve or a malfunction of the engine ratios! Lies in a stuck EGR valve or a malfunction of the crankcase ventilation system diving deep into all the of! Crankcase ventilation system covers and doors, as well as chassis components $! Euro 5 emission standards of its covers a stuck EGR valve or a of! Engine oil Rising ( fuel Dilution ) June 16, 2022 by Daniel Hall OM646 tuning outline! And 250 CDI, produce 170hp and 204hp respectively the 2.1 CDI engine OM. And high torque at low revs, so it should end up with problems the... Piggyback ECUs are all alternatives Bosch with first generation magnetic nozzles, exhaust recirculation turbocharger. - M274.910, M274.920 engine began to eat oil, its the popular... The difference between the R4 and R5 is not too expensive, covers and doors, as well chassis. Us improve, leave a suggestion or tip more severe requirements om647 and OM648 the pulley alternator +... And doors, as well as chassis components Bosch CP1 fuel pump is also very reliable I not. We review and look at OM642 tuning and point out the best deal for engine Rocker & amp ; covers. Have full access to read more injectors, making them almost impossible to take it to a center. Start with age and mileage injectors start with age and mileage injectors start pour... There is also very reliable with Euro-5 environmental standards is the same installing more...