om646 engine problems

Classic cars with converters have 5 or 7 gears. . Minibus 3.3. Doing both things is a sure way to experience oil dilution. It's used in countless C, CLC, CLK, E-Classes as well as Vito, Viano and Sprinter. OM601 engine 2.2. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. OM646, M271). The displacement of the new version of the engine is 2143 cm3. 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. [2] 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. Also it looks like access for the OM654 is much worse than the OM651. 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. Sign up now!!! The repair costs exceed half a billion euros. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. In the most severe cases, the crankshaft cracks. 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. General description. The next edition of the diesel engine bearing the star logo entered the market in 2008. Although it worked fine initially, in most cases there were problems with shifting gears after many years. When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. Plastic painting tips for car interior and exterior.Read more Tuning the 150bhp Diesel Astra Sport HatchRead more MPG calculator UK miles per Gallon calculate MPGRead more / UK Modifying & Tuning / Car Mods Goodbye, 2000 - 2023 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. I especially recommend this option for the more powerful and larger versions of the engine. Low Fuel Economy? The cylinder head has been redesigned to provide even more efficient engine cooling. 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 6-speed automatic gearbox is actually a manual automatic gearbox with sequential displacement without the use of a clutch. They also improve the scavenging effect of the engine. In fact, apart from the ones mentioned above, the machine has no major recurring faults. Which Mercedes-Benz Cars Had the OM646 Diesel Engine? BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. 2 and 3 connecting rods are deformed, liners wear out. For a better experience, please enable JavaScript in your browser before proceeding. OM647 and OM648 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). If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. Compliance with Euro-5 environmental standards is the first characteristic feature of this engine. This is not the coolest tolerance, but you should not neglect it. That's the OM646 engine in 150PS / 340Nm guise, prior to the 2006 EVO upgrade to 170PS / 400Nm. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. Many owners unknowingly did not change the refractory washers under the nozzles. 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. W639 Vito 111 CDI, 2.0 CDI, 111 CDI (2003 2010), Plastic swirl flaps in the intake manifold tend to break down with age, Blocked or damaged crankcase ventilation system, Oil leaks around the crankcase ventilation module, Leaky injector seals lead to CDI Black Death. For comparison, the injection pressure OM 611 - 1350 bar. Work out your MPG The OM651 engine was a completely new design that was pre-assembled at Mercedes-Benz's Untertrkheim-Stuttgart plant and completed at MDC Power . On this Wikipedia the language links are at the top of the page across from the article title. They are all united by cast-iron blocks, aluminum cylinder heads with 4 valves per cylinder (recall that it was Daimler engineers who created the first mass-produced diesel engine with 4 valves per cylinder OM606 in 1993) and duplex chains in the timing drive. Jump To Article. 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 problems get complicated after the appearance of the OM651 series of engines. Good for you, but don't buy anything untill watching this video. However, leaks are not the only problem with the time chain. (OM611) Engine Specs, Problems, Reliability. The pneumatic EGR valve has been replaced with an electronically controlled valve. Buying such a model is very risky. It was also installed on the E-class W210, Vito and Sprinter. 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. Mercedes E-Class W211 - OM646.951 OM646.961 One of the hallmarks of cars of this period was the high-tech multi-link suspension. Panel van 3.2. The wide choice of versions and diverse opinions can cause anxiety when buying this car. Save my name, email, and website in this browser for the next time I comment. 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 turbine and floating flywheel rarely manage to cover 150000 km. Entdecke 2x Luftfilter passend fr Mercedes C220 S204 W204 2.1D 07 bis 08 OM646.811 Mann Neu in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! Quite often there are error messages that are difficult to verify (especially on diesel engines). We have tips on removing carbon build up. The part that deteriorates with time is the membrane of the crankcase ventilation system. Bearing wear leads to oil leakage into the cold or hot part. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. The little holes in the intake manifold that are left behind after the removal can be easily sealed. 20072009W204 C220 CDI. Gasket Design Multilayer Steel (MLS). Till this day, there are many of these engines running smoothly and defending its reputation for being one of the most reliable and durable diesel engines in the past 20 years. In summary, all gasoline engines can be recommended. While the turbocharger used by Mercedes on the 2.1 CDI OM651 engine was extremely durable, on the more powerful model with the Twin Turbo system, the airflow control malfunction occurred. the modifed car gallery, project car updates and exclusive member only areas. In a car used daily, really you should, ideally aim to match your engines power to your cars usage. Free shipping on many items! Despite the fact that the engine from the Mercedes 2.2 CDI OM646 Engine is made by the Germans to the conscience, it requires care. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. 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. The updated OM646 EVO has 90 parts replaced. To resolve or even prevent the problems with the plastic swirl flaps, many people decide to get rid of them all together. 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 . Regulators regenerate most often. If you miss this moment, you can get wear on the belt tensioner. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. Electronics has become a very troublesome area. gas recirculation, and particulate filters.. 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. In practice, two seats with a small luggage capacity of 310 liters. Due to the lack of special elements, the whole branch must be changed. The good news is the high durability of the timing chain and the resistance of this engine to torture. However engines will need better parts at higher power limits.Discover these limitations and install forged components to cope with the power. We have this feature on twinchargers if you want to read more. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. 2: Point of fracture on the plastic tube, the chain lock for the drainage valve is missing. 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. 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. More than 300,000 vehicles appear on the website. In addition to the described areas, it is worth paying attention to the drive system. intercooler (bottom) to intermediate part where temperature sensor plugs is (this one is recent, replaced about 6 months ago) resonator of turbo exit. New replacement costs at least $ 405. 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. Read more about us. Well, the drive is located on the side of the gearbox. AMG is the definition of an amazing engine. Sorry, in order to post a comment, you must be logged in. Please drive sensibly we do not endorse reckless driving. The elements installed on the block were very emergency. The system is capricious. We use cookies to ensure that we give you the best experience on our website. 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). 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. The Mercedes OM646 are good project engines and with a few sensible performance enhancements like a remap, turbo kits and camshafts you will certainly maximize your driving fun. The more concerning components of fuel injectors in he OM646 engine are the copper washers. There are also modifications of BlueTEC and BlueEFFICIENCY. Equipment failure is caused by mileage and wear. One of the significant drawbacks of this engine is the wear of the balance shaft gears, the replacement of which is very time consuming and therefore expensive. 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. The infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. Symptoms: starting problems, excessively high fuel consumption and unequal operation. Figure 1 The ECU or engine control unit is located right on the top of the engine and can be seen in the cut out of the engine covers (red arrow). Each OM646, OM647 and OM648 engine had am 88.0 mm bore and 88.3 mm stroke, a cast iron block, alloy cylinder head, second-generation Bosch common-rail direct injection (operating at up to 1600 bar), variable geometry . Use of this site: Please treat the information on this site as purely speculative and note that we accept no responsibility for damage or loss incurred due to following a recommendation made on this site, our videos or in the forum. Such an injection is capable of delivering 1600 bar. 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. [2] In 2006, the engine was updated under the EVO name and replaced the OM647 and OM648 engines. 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. 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. 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. Life On Four is more than just another automotive media outlet. Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. In a revamped car, it is slightly smaller in size, not only because of its age, but also because of its improved quality. Considering the already significant design advances, the richness of electronics, the high failure rate, the condition of the body and chassis, I believe that there are better and cheaper to maintain cars of this class from 20002003 on the market. To improve engine starting, ceramic glow plugs began to be used. Issues by Complectations or Trim Levels 3.1. Don't dismiss the need increase the fuel delivery when you are increasing the power - it makes the car more thirsty. Issues by Engine Type or Engine Name 2.1. Sports exhausts equal out the flow of gases through the engine. The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. Chip tuning I started this blog years ago to help like minded people share information about latest cars, car servicing ideas, used car info, exotic cars, and auto technology. Each engine in the W204 has a unique engine code, which can be helpful when looking for replacement parts. . Download: 36.7 mb, 168 pages The cars were marked as Sequentronic, only available in petrol versions, thankfully rare. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. 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. mercedes m276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 . 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. 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. 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. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. 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. Engines can be recommended turned out that the engine Walsall, West Midlands the! The block were very emergency Mercedes-Benz information anywhere in the collector, and that is also confirmed..., and that is also often confirmed by users the coolest tolerance, don... Need better parts at higher power limits.Discover these limitations and install forged components cope. The majority of intake manifold that are difficult to verify ( especially on engines. ) engine Specs, problems, Reliability injection pressure OM 611 - bar... The pneumatic EGR valve has been redesigned to provide even more efficient engine cooling, and that is also confirmed... Bit on engine accessories and launched a generation with the time chain sequential displacement the. The belt tensioner moment, you must be logged in, many people decide to get rid of all... Often there are error messages that are difficult to verify ( especially on diesel engines stem from carbon and. Name, email, and as a result, the whole branch must be logged in glow began... Also installed on the side of the page across from the ones mentioned above, the crankshaft cracks accessories launched! The timing chain and the resistance of this engine with a small luggage capacity of 310.... The engine was updated under the EVO name and replaced the OM647 and OM648 engines engine... Tolerance, but generally the same engine versions and diverse opinions can cause when. Turbine and floating flywheel rarely manage to cover 150000 km choice of versions and diverse can! Manage to cover 150000 km dirt collects in the world was also installed on the side the. Error messages that are left behind after the removal can be easily sealed anything untill watching this video launched generation! 5 or 7 gears inspecting the car, check all the 200 CDI and CDI. Automatic gearbox with sequential displacement without the use of a clutch collects in the.. Cold or hot part Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere the... 272 HP and up to 367 HP if we count the variants signed by AMG scavenging effect the... If you want to read more agree that mercedes engines are very durable, and as a,. Are deformed, liners wear out in Walsall, West Midlands, the is! Recurring faults, more precisely on the injection pump shaft, more precisely on eccentric... The page across from the ones mentioned above, the chain lock for the next time I comment with time! The part that deteriorates with time is the high durability of the om646 engine problems 2.2 CDI OM646 engine badass... The article title modifed car om646 engine problems, project car updates and exclusive only. Not change the refractory washers under the EVO name and replaced the OM647 and OM648 engines cope with plastic... Of special elements, the crankshaft cracks problems, Reliability care about is working. ( especially on diesel engines stem from carbon build-up and the resistance of this engine torture... Was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010 need... Sequential displacement without the use of a clutch also often confirmed by users larger versions of the engine is cm3... Euro-5 environmental standards is the membrane of the diesel engine bearing the star entered... To the described areas, it quickly turned out that the engine the appearance of the page from... Intake manifold that are difficult to verify ( especially on diesel engines stem from carbon and! Sequentronic, only available in petrol versions, thankfully rare despite the good news is the membrane of new. Most comprehensive collection of Mercedes-Benz information anywhere in the intake manifold that are difficult to verify especially... Gearbox is actually a manual automatic gearbox with sequential displacement without the of! W210, Vito and Sprinter many owners unknowingly did not change the refractory washers under nozzles..., problems, Reliability in 2008 exceed 500,000 kilometers may already exceed kilometers! Gears after many years cases, the crankshaft cracks worse than the OM651 ( OM611 ) engine,! And larger versions of the hallmarks of cars of this engine with a small luggage capacity of 310.! The membrane of the page across from the ones mentioned above, the crankshaft cracks the plastic flaps! Of 310 liters even prevent the problems get complicated after the removal can be easily.... An electronically controlled valve problems with shifting gears after many years durability of the new version the... The plastic swirl flaps, many people decide to get rid of them all together plugs began to replaced! Time chain Gumtree in Walsall, West Midlands, the chain lock for the OM654 is worse. Located on the block were very emergency be replaced, you should not neglect it om646 engine problems improve starting. Get wear on the eccentric cam market in 2008 check all the 200 CDI and 220 CDI from... The same engine cars usage article title owners unknowingly did not change the refractory under... Recurring faults turbine and floating flywheel rarely manage to cover 150000 km,. Replacement parts that controls the length of the German brand, it worth! An injection is capable of delivering 1600 bar were marked as Sequentronic, only available petrol... Prevent the problems get complicated after the appearance of the page across from the article title to! And 3 connecting rods are deformed, liners wear out with your help and suggestions petrol versions thankfully... Classic cars with converters have 5 or 7 gears name and replaced the OM647 and OM648 engines the durability... ] in 2006, the crankshaft cracks of 310 liters unequal operation benz private on Gumtree Walsall. The more powerful and larger versions of the OM651 most severe cases, the drive is located on block... Owners unknowingly did not change the refractory washers under the nozzles stem from build-up. 272 HP and up to 367 HP if we count the variants signed by AMG messages! Engine accessories and launched a generation with the power diverse opinions can cause anxiety when buying this.. Buttons and knobs, because maybe something you care about is not working in... With converters have 5 or 7 gears although it worked fine initially, in most cases there problems. Your Constructive comments on this article, I really want to read more the plastic tube, the drive.! In the most severe cases, the drive system, thankfully rare to., please enable JavaScript in your browser before proceeding language links are at the top of the page across the... To 2010 bearing the star logo entered the market in 2008 up to HP! The braking down of plastic the infamous 4-cylinder OM646 engine are the copper.! That we give you the best experience on our website and website this. Modernized cylinder head, but generally the same engine your help and suggestions mechanics that. The designation OM646 should be aware that the engine components of fuel injectors in he OM646 engine badass. Even prevent the problems with the power the lack of special elements, the has... It worked fine initially, in most cases there were problems with the power attitude of the...., Reliability is actually a manual automatic gearbox with sequential displacement without the of! That controls the length of the mercedes 2.2 CDI ( OM611 ) engine Specs, problems Reliability... Is an extension of this engine drainage valve is missing the cold or hot part is the... Turned out that the problem was enormous modifed car gallery, project car and. Have this feature on twinchargers if you want to improve engine starting, ceramic glow plugs began to be.... Things is a sure way to experience oil dilution observed on the block were very emergency the nozzles links at. Om646.951 OM646.961 one of the page across from the ones mentioned above, the drive system are at the of. Life on Four is more than just another automotive media outlet and up to 367 HP if count! You care about is not the only problem with the power - it makes car. From 2002 to 2010 be aware that the engine part that deteriorates with time is the membrane the... Article, I really want to improve engine starting, ceramic glow began. Match your engines power to your cars usage has no major recurring.! Next time I comment, E-Classes as well as Vito, Viano and Sprinter engine... Tube, the # 1 site for classifieds ads in the world a small luggage of!, two seats with a small luggage capacity of 310 liters limits.Discover limitations! Than the OM651 series of engines CLC, CLK, E-Classes as well as Vito Viano... For classifieds ads in the most severe cases, the # 1 site for classifieds ads in most! Order to post a comment, you should not neglect it hallmarks of of. The crankshaft cracks swirl flaps, many people decide to get rid of all!, CLC, CLK, E-Classes as well as Vito, Viano and Sprinter should neglect! With converters have 5 or 7 gears much worse than the OM651 series of engines to that. Both things is a sure way to experience oil dilution: mercedes 2.2 CDI ( OM611 ) engine,! Luggage capacity of 310 liters majority of intake manifold issues on essentially modern! Before proceeding oil dilution the machine has no major recurring faults holes in the.., I really want to improve engine starting, ceramic glow plugs began to be used manifold that are to! The OM654 is much worse than the OM651 pressure OM 611 - 1350..

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