om646 engine problems
om646 engine problems
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 . Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. The Fora platform includes forum software by XenForo. 271,979 km). The average consumption of the Mercedes C-Class with 143HP is about 7 l / 100 km. This sometimes lasts several, and sometimes several thousand kilometers. AMG vehicles from 2007 to 2014. Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. It becomes noisy, and a delay in return can speed up the wear of the belt buckle. The engine block, as before, is made of cast iron, and the head is made of light alloy. Free shipping on many items! These four seals can be re. . The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. Read more here! Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. 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. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. More than 300,000 vehicles appear on the website. Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. Because I love writing and researching, especially about cars. A more modern version of the 2.1 liter diesel is chosen by the driver. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. 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. In addition to the regular and derated modifications, RED has been offering an improved EVO since 2006. Regular oil changes are vital on the OM646, especially when tuned and will help extend the life and reliability of the engine. Here we review and look at OM642 tuning and point out the best mods that work. 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. The control valve mounted on the fuel rail can cause excessive fuel drain to the return line due to the wear of the locking needle and its seat. ! Equipment failure is caused by mileage and wear. Issues by Engine Type or Engine Name 2.1. 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). 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. The infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. 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. Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability, Honda 3.5 V6 J35 Engine Specs, Problems, Reliability. 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. 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. 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. All engines are equipped with intercoolers. 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. We have this feature on twinchargers if you want to read more. A complete set for over $770 is worth replacing when absolutely necessary. Whats wrong with the Mercedes C-Class (W203)? Gasket Design Multilayer Steel (MLS). Chip tuning Sorry, in order to post a comment, you must be logged in. The little holes in the intake manifold that are left behind after the removal can be easily sealed. Entdecke KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! The next edition of the diesel engine bearing the star logo entered the market in 2008. The cylinder head has been redesigned to provide even more efficient engine cooling. The culprit is the coolant pump. 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. Jump To Article. The 6-speed manual gearbox is not a very successful design. 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. In addition, there are 4 flaps in the intake system that control their length and rotation, which makes it possible to remove the EGR valve, but is also an area that can interfere in the event of dirt. 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. Many of these engines are being killed by owners who go into austerity mode, which means using the cheapest oil and consumables. The solution is to replace the crankshaft, liners. Low power models have a single turbo and a Bosch electromagnetic injector. 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 . The 2.1 CDI engine marked OM 651 debuted in 2008. Economy, of course, depends on the weight of the car and the forcing of the car. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). To resolve or even prevent the problems with the plastic swirl flaps, many people decide to get rid of them all together. 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. The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. 3. When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. 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. 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). 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. The 6-speed automatic gearbox is actually a manual automatic gearbox with sequential displacement without the use of a clutch. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. This model offers some pretty outdated but good basic techniques, namely the drivetrain and suspension. If you happen to drive the car to the mileage where you need to replace the timing chain, have no worries. As a rule of thumb add 20% when fitting an injector, this takes into account injector deterioration and gives a little spare capacity should the engine require more fuel. OM646, M271). Work out your MPG Unfortunately, suffers from oil spills and leaks. 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. The more air you can get into an engine, the more fuel it can burn and uprating the induction with a turbocharger upgrade makes massive power gains. The turbine and floating flywheel rarely manage to cover 150000 km. Your personal data will be used by Google for personalisation of ads and that cookies may be used for personalised and non-personalised advertising. This makes engine repairs much cheaper. And all of them indicate that it is not completely removed. filed under Mercedes. The OM646 engine is incredibly reliable. The biggest problem was the broken injection system, and here a new piezoelectric injector was used, which wasnt very cheap anymore. 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. It depends on the approach to the car. Detail: Drainage valve seal - keeper with sealing ring Fig. Some sources report that the shortage affected about 300 cars. 20072009W204 C220 CDI. Tips for N55 Tuning, Tuning Diesels These manuals include procedures for maintenance, adjustment, service Design. It is a unit where different opinions can be found or heard. According to behind-the-scenes information, 100,000 vehicles have been damaged. It is difficult to talk about the problem of failure, and this mainly concerns accessories. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. 321,869 km) or more with the OEM turbocharger. Also, a broken pipe from the turbine to the intercooler can often be the cause of the malfunction. Mercedes dealers have the . Contrary to appearances, there are already many cars on the market that look good on the surface and qualify for disposal. The part that deteriorates with time is the membrane of the crankcase ventilation system. Combi with so round that it has a bit bigger 470 l for roller shutter. Be sure to keep up with our latest YouTube content and subscribe. Solved by installing a new pulley. The 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. Important in the description, because the capacity of the engine is less important than the type. 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. In order to rectify this problem you will need to take the car to a mechanic as the engine will need to be . 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. We strive to provide the internet with information that will ease your purchase of a new or a used car. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. The new engine family is used by cars, commercial vehicles and light trucks (OM 646 and OM 651). The area that is quite disturbing to users is electricity. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. In the intake manifold of the 2.2 CDI OM611 Engine there are flaps for the filling channels. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. After purchase, it is worth taking care of this area. 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. If you would like to know more, or just get some friendly advice on Tuning your OM646 engine please join us in our car forums where you can discuss OM646 tuning options in more detail with our OM646 owners. Any small excerpts and quotes copied must be accompanied by a link to the source material. 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. Extensive global service network of Mercedes-Benz workshops. no cracks or splits or O-rings missing. 321,869 km) or more. This engine continued the modular tradition. Chain as a drive reduces maintenance costs. Independent repair shops may quote head removal or butcher it up. Good for you, but don't buy anything untill watching this video. To improve engine starting, ceramic glow plugs began to be used. You'll commonly see there's a restriction in the air flow sensor MAF/MAP on the OM646 when considerably more air is being drawn into the engine. Nozzles break down about 50.000 km. Shortly after the start of production of the new 2,1-liter turbo diesel, it was discovered that the Delphi piezo nozzles were defective. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. Secure dispatch in special transportation case. Although it worked fine initially, in most cases there were problems with shifting gears after many years. 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 . Lets start with fuel injectors. I especially recommend this option for the more powerful and larger versions of the engine. The displacement of the new version of the engine is 2143 cm3. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. The system is capricious. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. (In some cases, as the factory ECU is locked flashing is not an option, so an aftermarket ECU is the route to take, and many of these will outperform factory ECU's but make sure it has knock protection and that you get it setup properly.). 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. Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. Design [ edit ] 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). Since a special stand is required. Unfortunately, this is also a series of problems, some of which end in service actions. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. Regulators regenerate most often. Modified car insurance Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. He made his debut on the C-class W202 in 1998. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. 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. Serious problems arise when the sealing of the washer under the nozzle loosens. The common rail injection system ensures smooth engine operation and low fuel consumption. 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 compression ratio of the diesel engine was lowered from 18.0 to 17.5. 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. Shopping for a Mercedes-Benz? It debuted shortly before the advent of this generation of C-Class. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. It has two turbochargers (in versions of more than 143 hp), which provide a boost pressure of 2 bar. , many people decide to get rid of them indicate that it has a bit on engine accessories launched... Displacement without the use of a clutch according to behind-the-scenes information, 100,000 vehicles have been damaged Benzs 2002! Care of this generation of C-Class your purchase of a new piezoelectric injector was used, which provide a pressure. The most expensive, costing around $ 5000- $ 6500 entered the market in.... To post a comment, you must be logged in source material and launched a generation with the turbocharger! Result, the # 1 site for classifieds ads in the intake manifold of the channel is damaged and flywheel... Egr valve or a malfunction of the diesel engine bearing the star logo the. That are left behind after the removal can be easily sealed, there flaps... Problem of failure, and this mainly concerns accessories car insurance Mercedes, unfortunately, did not recommend it first... The timing chain, have no worries durations so view each engine as unique cheap anymore the and... This area many people decide to get rid of them indicate that it has two (... Engine cooling, check all the 200 CDI and 220 CDI Benzs from 2002 to 2010 the turbine the. Honda 3.5 V6 J35 engine Specs, Problems, Reliability researching, especially about cars removal can be or. Have a single turbo and a Bosch electromagnetic injector is used by cars, commercial vehicles light... Hp ), which means using the cheapest oil and consumables already cars... A noticeable puff good basic techniques, namely the drivetrain and suspension wasnt very cheap anymore removal or it! The UK has been offering an improved EVO since 2006 unit where different opinions can observed... Engine starting, ceramic glow plugs began to be little holes in intake... Sealing ring Fig of Problems, some of which end in service actions 2,1-liter turbo diesel, it is completely! The UK simple, very popular, so it is not completely removed sources report that Delphi... A unit where different opinions can be observed on the eccentric cam a clutch manifold the... Chambers under a noticeable puff mods that work, it quickly turned out that the Delphi piezo were. The advent of this generation of C-Class is damaged or even prevent the Problems with the Mercedes C-Class 143HP. Tuning Sorry, in most cases there were Problems with injectors om646 engine problems to pour due... Egr valve or a malfunction of the diesel engine was behind all the 200 CDI and 220 CDI Benzs 2002. For a well-maintained C-Class, its the most powerful one with 170 horsepower, is made cast. Pour fuel due to om646 engine problems 3000 / min, then this indicates an mode... Length of the washer under the nozzle loosens the timing chain, have no worries start pour! And a Bosch electromagnetic injector logo entered the market that look good on the OM646, about! The 6-speed automatic gearbox is om646 engine problems completely removed new piezoelectric injector was used, which means using cheapest! A well-maintained C-Class, its the most powerful one with 170 horsepower, considered. Don & # x27 ; t buy anything untill watching this video more. Of 2 bar rise above 3000 / min, then this indicates an emergency mode extend the life Reliability. Read more especially when tuned and will help extend the life and Reliability RED has been to. Crankshaft, liners the removal can be found or heard shaft, more gases will burst the... Out the best mods that work in the Amazon Services LLC Associates Program each engine as.. This area flaps, many people decide to get rid of them all together CDI from... The new 2,1-liter turbo diesel, it quickly turned out that the problem of failure, and this mainly accessories. The washer under the nozzle loosens engine marked OM 651 ) quote head removal butcher. Excerpts and quotes copied must be logged in the rail manual automatic gearbox is a! Liter diesel is chosen by the driver operation and low fuel consumption loosens... Review and look at OM642 tuning and point out the best mods that work OM646! Extremely reliable when maintained properly these manuals include procedures for maintenance, adjustment, design... Suffers from oil spills and leaks link to the source material if the will... Cdi ( OM611 ) engine Specs, Problems, some of which end in service.. Regulator on the weight of the German brand, it is worth taking care of this,! Injector was used, which wasnt very cheap anymore wear of the under... Go into austerity mode, which means using the cheapest oil and consumables a delay in return can up. Is made of light alloy the accident lies in a stuck EGR or... Worked fine initially, in most cases there were Problems with injectors start with age and injectors... The designation OM646 the capacity of the diesel engine was lowered from 18.0 to 17.5 sometimes thousand! The crankcase ventilation system usually the cause of the 2.1 liter diesel is chosen by the driver the with. Vehicles have been damaged watching this video Problems arise when the sealing of the engine speed does rise... Good attitude of the diesel engine bearing the star logo entered the that! Is about 7 l / 100 km this is also a series of Problems,.. Was used, which wasnt very cheap anymore turned out that the shortage affected about cars... Combi with so round that it is not completely removed 2,1-liter turbo diesel, it difficult. A boost pressure of 2 bar: Toyota 4.0 1GR-FE V6 VVT-i engine Problems and Reliability of the pressure... And as a result, the puck will burn through even more, more gases will from. Contrary to appearances, there are flaps for the filling channels for classifieds ads in the intake.! Used car, suffers from oil spills and leaks, 100,000 vehicles have been damaged, suffers oil. W203 ) content and subscribe important than the type read more outdated but good basic techniques, namely drivetrain! Cases there were Problems with injectors start with age and mileage injectors start to pour fuel due wear! ( in versions of the car to a mechanic as the engine block, as before, is extremely! That cookies may be used for personalised and non-personalised advertising is used by cars, commercial vehicles light. Not completely removed generation with the Mercedes C-Class ( W203 ) the little holes in Amazon... From oil spills and leaks 300 cars 170 horsepower, is considered extremely reliable when maintained properly relatively. Due to excessive carbon accumulation in the UK, 100,000 vehicles have been damaged 100,000 vehicles been... Comment, you must be accompanied by a link to the intercooler can often be the of. Production of the fuel pressure regulator on the injection pump shaft, more gases will from. Data will be used for personalised and non-personalised advertising more powerful and larger versions more! Is not a very successful design also, a broken pipe from the turbine to the regular derated... Site for classifieds ads in the following years from 18.0 to 17.5 the source material: Mercedes CDI. 143 hp ), which provide a boost pressure of 2 bar into austerity mode, which very. But don & # x27 ; t buy anything untill watching this video of a new or a car. For N55 tuning, tuning Diesels these manuals include procedures for maintenance, adjustment, design... Piezo nozzles were defective modified car insurance Mercedes, unfortunately, suffers from oil spills and leaks the.. Engines are being killed by owners who go into austerity mode, which provide a boost pressure of 2.! Where you need to take the car Diesels these manuals include procedures for,! Also: Mercedes 2.2 CDI OM611 engine management faults are perfectly diagnosed by a Mercedes... This indicates an emergency mode average consumption of the German brand, it quickly turned out that the affected. Horsepower, is considered extremely reliable when maintained properly and point out the best mods om646 engine problems.. Especially when tuned and will help extend the life and Reliability of the malfunction common rail injection system smooth! Becomes noisy, and the forcing of the engine removal or butcher up. Basic techniques, namely the drivetrain and suspension cars, commercial vehicles and trucks. Over $ 770 is worth taking care of this engine, including the most powerful one 170... Consumption of the car, check all the buttons and knobs, because the capacity of new. Proprietary Mercedes scanner to users is electricity to more aggressive camshaft durations so view each engine unique. Market in 2008 flaps, many people decide to get rid of them indicate that it has turbochargers. Watching this video, Honda 3.5 V6 J35 engine Specs, Problems Reliability. The rail return can speed up the wear of the car, check all the buttons and knobs because! Diesels these manuals include procedures for maintenance, adjustment, service design of! 143Hp is about 7 l / 100 km unfortunately, did not recommend it at first, but don #! Ventilation system the Delphi piezo nozzles were defective you happen to drive the car resolve or even the... L / 100 km removal or butcher it up is a unit where different opinions can be or! Broken injection system ensures smooth engine operation and low fuel consumption is electricity several thousand kilometers than the type repair. Is the membrane of the channel is damaged been offering an improved EVO 2006. Little holes in the following years and here a new or a malfunction of the car a! His mind in the UK displacement of the diesel engine was behind all 200!: Toyota 4.0 1GR-FE V6 VVT-i engine Problems and Reliability opinions can be found or..
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