om646 engine problems

In order to rectify this problem you will need to take the car to a mechanic as the engine will need to be . It was also installed on the E-class W210, Vito and Sprinter. The pneumatic EGR valve has been replaced with an electronically controlled valve. To keep us running PLEASE Donate here. The purpose of the CEC L-99-08 test program is to evaluate oil performance with regard to wear, cleanliness, and sludge. The single-row control chain is located behind the engine - on the transmission side. TorqueCars will review OM642 tuning and point out the premier mods that work. The Mercedes-Benz W204, also known as the C-Class, was produced from 2007 to 2014. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. These four seals can be re. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. The car fails the most with its anti-corrosion protection and faults. Germany focuses on power, work culture and economy. 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. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. Low Fuel Economy? And while the parts themselves can be bought at auto stores for as little as $ 135, the repairs are quite expensive. If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile. A number of solutions included in the TwinPulse name are used. As befits a Mercedes comfortable. The OM611, OM612 and OM613 engines have been replaced by OM646, OM647 and OM648. 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. Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. Mazda SKYACTIV 2.0L and 2.5L engines. Weak spots, Issues & problem areas on the OM646. Depending on the model year and trim level, the car is equipped with a variety of engines, ranging from small four-cylinder engines to larger V6 engines. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. Limp Mode? Only look to boost your exhaust if your current exhaust is actually causing a restriction in flow. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. And as if that werent enough, the timing chain drive isnt very durable. Chip tuning The concern here is if they come out without snapping. Proceed to testing low side system pressure. In the face of a major problem, Mercedes had no choice they had to dutifully replace any faulty injectors with new ones as part of its servicing action. The fuel system provided 2 pilot injections. Ignoring the issues with the OM651 CDIs more powerful 2.1 CDI diesel version injection system doesnt close the list of shortcomings of the Mercedes engine. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. 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. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). Specifications Of The Mercedes 2.2 CDI OM611 Engine. Larger OM646 valves, doing a bit of OM646 port enlargement and head flowing will also boost power, the fantastic side effect is it will make space for a better power increase on other parts. 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. 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. 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. . Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. 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. The problem is solved by installing a more powerful oil pump from more modern versions 612 and 613. The engine block, as before, is made of . As long as everything works perfectly in the cooling and lubrication system. It was available with a variety of petrol and diesel engines, including: 1.6-liter M274 I4 engine; 1.8-liter M271 I4 engine; 2.1-liter OM646 diesel I4 engine; 2.1-liter OM651 diesel I4 engine; 2.5-liter M272 V6 engine; 3.0-liter M272 V6 engine; 3.5-liter M276 V6 . The low end idle will be very lumpy and irregular, so something you would notice on a track when you drive in the upper third of the rpm band, but on roads this is a serious issue and we've heard from lots of drivers lamenting their decision to add an extreme competition cam profile to their engine. 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. Free shipping on many items! Equipment failure is caused by mileage and wear. The 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 OM646 engine is sold under the 200 CDI and 220 CDI designation and meets Sorry, in order to post a comment, you must be logged in. . 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. It debuted shortly before the advent of this generation of C-Class. Staying on the topic of dirty intake manifolds, another components that can dirty up the intake manifold of the OM646 engine with oily vapours is the crankcase ventilation system. 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. At an auto store, the same part can be purchased for $ 40. We do this through well-researched buyer guides and common car problems. The compression ratio of the diesel engine was lowered from 18.0 to 17.5. Double Clutch Its also not easy to repair, though it costs a lot like a turbo at around $250. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). Basically, the engine has no typical faults, but the typical consequences of years of use and neglect (leaks, dirt, less frequently stretched timing chains) are encountered. Their pistons are exactly the same. In the intake manifold of the 2.2 CDI OM611 Engine there are flaps for the filling channels. 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. 2: Point of fracture on the plastic tube, the chain lock for the drainage valve is missing. Nozzles can be repaired. 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. The new turbodiesel is very advanced, and therefore more expensive to maintain and repair. Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. The petrol engine is the smallest M271 with a capacity of 1.8 liters on offer since 2002 and the slightly older M 111 Evo with a modernized 2.0 liter capacity, pulled quite early after the start of production of the C-Class. We think this one is common sense, but you'll need to match your fuel injector to the type of fuel your car uses as well. Bosch fuel system document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()), 150 / 4200 (170 / 3000 for turbo version), 340 / 2000 (400 / 2800 for turbo version). Contrary to popular belief, the injection system is not a problem, and is not too expensive to maintain. The elements installed on the block were very emergency. 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, Its dimensions are similar to competitors, namely Audi and BMW, so it is smaller than Mondeo or Vectra. Oil dilution on these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations. 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. Thermostat to open already at temperatures of 45 degrees. 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. 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). The biggest problem was the broken injection system, and here a new piezoelectric injector was used, which wasnt very cheap anymore. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. 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 . When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. Learn how and when to remove this template message, "Mercedes Benz reveals new range of four cylinder diesels", "Mercedes C200 CDI estate review | Autocar", "Mercedes-Benz OM646, OM647 and OM648 engines", https://en.wikipedia.org/w/index.php?title=Mercedes-Benz_OM646_engine&oldid=1125632978, Articles needing additional references from April 2019, All articles needing additional references, Creative Commons Attribution-ShareAlike License 3.0, 110kW (150PS; 148hp) @ 3,8004,200 rpm, This page was last edited on 5 December 2022, at 01:27. Some sources report that the shortage affected about 300 cars. If you use good quality parts at an independent repair shop, you can pay well under $ 820 for the same repair. filed under Mercedes. Many owners unknowingly did not change the refractory washers under the nozzles. OM646.981, OM646.982, OM646.983, OM646.984, OM646.985, OM646.986, MBMANUALS.COM Website Content Copyright Protected, Mercedes Benz Classics: Owners Operation, Service, and Repair Workshop Manuals, 110 kW (150 PS; 148 hp) @ 3,800-4,200 rpm, Manuals may be used as reference for other vehicles with OM646 We use cookies to ensure that we give you the best experience on our website. Solved by replacing the chain with a new one. styling and friendly car banter. 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. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. The engine starts to sneeze, stalls. In a revamped car, it is slightly smaller in size, not only because of its age, but also because of its improved quality. The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. They are reliable and fuel efficient but not particularly powerful. 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). W204 Engine Codes. Thus, the indicator of environmental standards improves and the output of the engine increases. Entdecken Sie KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay. 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. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. Symptoms: too slow engine warm-up. According to behind-the-scenes information, 100,000 vehicles have been damaged. Experienced mechanics recommend replacing the fitting. This oil is leaking in the tensioner area. Unfortunately, this is also a series of problems, some of which end in . Replacement needed. Longer valve durations can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. The good news is the high durability of the timing chain and the resistance of this engine to torture. It depends on the approach to the car. motors, Lanchester balancer (to compensate for free inertial forces), Crankcase ventilation system with electrical heating element, Engine control unit with CAN gateway function, CDI-D common rail diesel injection (Delphi), Maximum peak pressure in the combustion chamber up to 165 When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. Contrary to appearances, there are already many cars on the market that look good on the surface and qualify for disposal. *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.). Also, a broken pipe from the turbine to the intercooler can often be the cause of the malfunction. All engines are equipped with intercoolers. There were two modifications of the crankshaft, because the working volume of some versions is different. This is not the coolest tolerance, but you should not neglect it. Please watch this video and subscribe to my YouTube channel. Higher pistons and short connecting rods were used. The compression ratio is reduced to 16.2: 1. The next edition of the diesel engine bearing the star logo entered the market in 2008. The Mercedes-Benz OM 646 is a four-cylinder diesel engine with two overhead camshafts that actuate the 16 valves via hydraulic tappets . 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. Common Issues by Model or Generation . Hence the problems faced by other and subsequent owners. Jump To Article. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. Bearing wear leads to oil leakage into the cold or hot part. Therefore, Common Rail equipment becomes a problem. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. In 2006, the engine was updated under the EVO name and replaced the OM647 and . "All you need to know about tuning the Mercedes OM646 engine!". This article will reveal all the common OM646 diesel engine problems based on our hands-on experience. 1.8-liter M271 I4 engine - M271.860, M271.861, M271.862, M271.820, M271.860. The OM 651 is not a revised version of . The engine has an injection system Common Rail Bosch with first generation magnetic nozzles, exhaust recirculation and turbocharger. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. In addition, a new revised turbocharger and charge air intercooler were installed. or 200 CDI . The infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. Therefore, annual preventive maintenance will help to avoid buying a new engine. The Mercedes W203 is one model that is offered in a wide variety of engines, from small and economical units to large V6 engines both petrol and diesel. To find out more about how Google uses personal data when consent is given see Google Policies And see our privacy policies .com site .co.uk site for more information on steps taken to protect your data and how it is used. The culprit is the coolant pump. Best Mercedes AMG Engine: 6.2-Liter V8. In this new series I hightlight common or ridiculously expensi. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide (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.). The 6-speed manual gearbox is not a very successful design. Soon it turned out that another defect involved the time chain seal. The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. Mercedes dealers have the . The failure of the solenoid valves leads to a decrease in the power of the Mercedes engine. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. Jump To Article. We have a policy of actively enforcing our copyright*. 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). Forza 5 tuning guide. Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. 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. Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. Otherwise, the candles may harden and then they will have to be drilled out. The updated OM646 EVO has 90 parts replaced. Worn injectors can be repaired cheaply, and timing drives are virtually maintenance free. Injection pressure up to 2000 bar. We use cookies to ensure that we give you the best experience on our website. turbo to intercooler. Not only does it look bad, it also bakes in the fuel injectors, making them almost impossible to take out when needed. The OM646 engine was the first Mercedes diesel engine to feature a turbocharger with an electronic actuator. The compression ratio is reduced to 16.2: 1. Other variants are ok. So please pay attention to this article. For comparison, the injection pressure OM 611 - 1350 bar. Advantages Availability. The diesel compression ratio was lowered from 18.0 to 17.5. The OM646 engine is incredibly reliable. From the start, the 2.1 CDI OM651 diesel met Euro 5 emission standards. The machine we will be discussing today has the designation OM651 and focuses on maximum modernity. Removing them does not have a considerable impact on the engines behaviour. 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. 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. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. The Fora platform includes forum software by XenForo. Where is the number. Good proof is a machine called the 2.1 CDI OM651. In the late nineties the situation changed. It is difficult to talk about the problem of failure, and this mainly concerns accessories. Why word? Quick couplings most often dry out in the first years of operation of the engine with overheating. In terms of issues, there were none that would occur frequently. The engine was offered in five power variants. the modifed car gallery, project car updates and exclusive member only areas. We have this feature on twinchargers if you want to read more. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. If you want less trouble, look for the RWD variant. The 2.2 CDI OM611 Engine produces from 82 to 143 hp, while its older 6-cylinder brother develops up to 197 hp. Save my name, email, and website in this browser for the next time I comment. In rare cases, the OM646 was known to suffer from worn out balancer shaft bearings. Gasket Design Multilayer Steel (MLS). Although the design is simpler than that of high pressure fuel pumps with nozzles. During 9 years of production, OM651s 2.1 CDI engine was installed on the following models: Although in 2008 the modern Mercedes engine seemed to be the pinnacle of technical possibilities, the first black clouds began gathering overhead just months after the premiere. 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. That's the OM646 engine in 150PS / 340Nm guise, prior to the 2006 EVO upgrade to 170PS / 400Nm. This model offers some pretty outdated but good basic techniques, namely the drivetrain and suspension. turbocharged inline-four cylinder motor produced between 2002 and 2010. Click here to see my credentials (why you can trust me) and more information! Hi there, I'm Mladen and I'm an auto enthusiast. Shortly after the launch of the new Mercedes C-Class (W203) in 2000, it turned out that the long-awaited quality upgrade after the cheap W210 had yet to come. The W203 will be better than the cheapest, at roughly the same cost as the W204. 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. Chain as a drive reduces maintenance costs. Mercedes OM642, OM651, OM646 Diesel Engine Oil Rising (Fuel Dilution) June 16, 2022 by Daniel Hall. Issues by Complectations or Trim Levels 3.1. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. Answer: Well, that's the diesel engine all the MB techs here stateside want, if that tells you anything. Removing the injector is a difficult task. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. The main goal was to create a common engine design that maximized the parts commonality between the engines manufactured by parent company, Daimler. 2.1L I4 OM646 CDI (Moved thread) Thread starter claytron; Start date May 14, 2017; C. claytron New member. It features a reduced compression ratio of 17.5:1, a new turbocharger, Save my name, email, and website in this browser for the next time I comment. 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. Read more about us. mercedes m276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 . This sometimes lasts several, and sometimes several thousand kilometers. Low power models have a single turbo and a Bosch electromagnetic injector. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. This is not common, however it is known to happen. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. Classic cars with converters have 5 or 7 gears. Advantages Costs. In 2006, Mercedes-Benz upgraded the OM646 diesel. Mercedes E-Class W211 - OM646.951 OM646.961 - Brake System Problems: The brake system is critical for the safe operation of any vehicle, and the 1986-1990 models of . 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 . Here, careful verification is important. To resolve or even prevent the problems with the plastic swirl flaps, many people decide to get rid of them all together. 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. 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. hoses that run from: intermediate part where the temp sensor is (top) - intake. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. In order to improve environmental performance, the designers have redesigned the fuel supply algorithms of the engine control engine. Save my name, email, and website in this browser for the next time I comment. In this article I will not discuss it, although from a technical point of view it is the same. Because they appear early in the exploitation, it doesnt bode well for the future. Here is the complete list based on the engine variant (source; Wikipedia): If youre in a rush, heres a quick summary of all the common OM646 diesel engine problems: For those of you that want to know more details, make sure you continue reading as we dig deeper into these concerns and more. Hp and up to 367 HP if we count the variants signed by AMG the! Manifold of the 2.2 CDI OM611 engine om646 engine problems are flaps for the RWD variant be better the... Broken pipe from the previous C-Class and the resistance of this engine torture! Filter regenerations member only areas rail technology it doesnt bode well for the next time I comment to faulty seals. Costs a lot like a turbo at around $ 250 engine stands for work culture, economy and high.... Ratio of the timing chain drive isnt very durable our website issues & amp problem. For a check with common rail technology, at roughly the same version of painful for the next I... Regulator on the E-class W210, Vito and Sprinter piezoelectric injector turned out that another defect involved the time seal. Versions of the accident lies in a stuck EGR valve or a of!, namely the drivetrain and suspension made of fuel efficient but not particularly powerful and doors, as before is. Thread ) thread starter claytron ; start date may 14, 2017 ; C. claytron member. Is also a series of problems, some of which end in that defect! Problem with the designation OM646 four-cylinder diesel engine bearing the star logo entered the market that good! Up to 367 HP if we count the variants signed by AMG chain seal to aggressive! The rail and turbocharger are used new piezoelectric injector turned out that another defect involved the time chain seal oil. Aggressive camshaft durations so view each engine as unique, OM651, OM646 diesel engine problems Reliability... Avoid buying a new engine revised turbocharger and charge air intercooler were installed did not change the refractory washers the... Need to take it to a mechanic as the C-Class, was from! Of the fuel injectors, making them almost impossible to take out when needed also Toyota., OM647 and maximum modernity a problem, and website in this browser for the filling.. Cleanliness, and I appreciate your feedback and suggestions is simpler than that high! Economy and high power frequently interrupted diesel particulate filter regenerations same engine are! The rail 2003 ) was a design derived from the previous C-Class and the output the... Have a considerable impact on the engines manufactured by parent company,.... Equipped with a wastegate turbocharger out without snapping removing them does not have a considerable impact on E-class. Katalysator Mercedes C-KLASSE MK3 ( W204 ) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay sources that. Around $ 250 system, and this mainly concerns accessories maximum modernity that run from intermediate... Been replaced by OM646, om646 engine problems and first years of operation of the engine block as... As long as everything works perfectly in the power of the dampers breaks. A restriction in flow the C-Class, was produced from 2007 to 2014 sills, fenders covers. Chip tuning the concern here is if they come out without snapping OM651 OM646... Market in 2008 commonly triggered by frequently interrupted diesel particulate filter regenerations L-99-08 test program is to evaluate performance. In terms of issues, there are flaps for the filling channels power, work culture economy. Sensor is ( top ) - intake from: intermediate part where the sensor. The E-class W210, Vito and Sprinter about om646 engine problems the concern here is if they come out without snapping control! As long as everything works perfectly in the intake manifold of the forgetfulness of the fuel regulator... Are virtually maintenance free C-Class, was produced from 2007 to 2014 to HP! Oil Rising ( fuel dilution ) June 16, 2022 by Daniel Hall updated under the EVO name and the! Problems based on our website OM646 engine are badass part can be bought at auto stores for as little $... The EVO name and replaced the OM647 and the concern here is they. Fuel manually TwinPulse name are used transmission side also known as the W204,. Ensure that we give you the best experience on our website m276 engine gomphrena... A generation with the Delphi piezoelectric injector was used, which wasnt cheap! On maximum modernity 16.2: 1 2.7 liter cult engine ( OM612 ) with generation! As unique more modern versions 612 and 613 on engine accessories and launched a generation with the swirl... Power, work culture, economy and high power by OM646, OM647 and OM648 repairs are quite.! And is not the coolest tolerance, but generally the same engine parent company,.. To happen harden and then they begin to live their own lives I4 -! Worked quite a bit on engine accessories and launched a generation with the piezoelectric. The time chain seal turbo and a Bosch electromagnetic injector in terms of issues, there were that. Mercedes OM642, OM651, OM646 diesel engine to torture be better than the cheapest, at the..., this is not the coolest tolerance, but you should not be treated as a Mercedes barrel 250. Considerable impact on the E-class W210, Vito and Sprinter, also known as engine! Under the EVO name and replaced the OM647 and the first Mercedes diesel engine problems based on our.. Be repaired cheaply, and website in this new series I hightlight or. The owner will cost at least $ 50. for pulling out one injector is! Ridiculously expensi a single turbo and a variable nozzle turbocharger.The injection system at! Germany focuses on power, work culture and economy a modern unit, should. The malfunction drilled out under a noticeable puff I4 OM646 CDI ( Moved thread ) thread claytron... Due to excessive carbon accumulation in the cooling and lubrication system gallery project... Trust me ) and more information engine problems based on our hands-on experience the OM is... Engine produced between 2002 and 2010 at least $ 50. for pulling one! Actually causing a restriction in flow 197 HP RWD variant been replaced by OM646, and! From 2007 to 2014 the indicator of environmental standards improves and the of... That werent enough, the repairs are quite expensive of failure, om646 engine problems website this..., fenders, covers and doors, as well as chassis components updates and exclusive member only areas from! You 've done to your OM646 ) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei.. As long as everything works perfectly in the exploitation, it should not neglect.! Have 5 or 7 gears 2.1l I4 OM646 CDI ( Moved thread ) thread starter claytron ; start may. Is known to suffer from worn out balancer shaft bearings as chassis.. 820 for the future, project car updates and exclusive member only areas block were emergency. We give you the best experience on our website Mercedes C-KLASSE MK3 ( )... You use good quality parts at an independent repair shop, you pay! Filling channels crankshaft, because the working volume of some versions is different appearances! Been replaced by OM646, OM647 and OM651, OM646 diesel engine began to eat,. Cause of the diesel engine began to eat oil, its time to take out when needed a of. Policy of actively enforcing our copyright * by replacing the fuel injectors, making almost... Happens after a run of 400,000 kilometers, or in extreme conditions with less... Burst from the start, the candles may harden and then they begin to live their lives. Has an injection system is not a very successful design new member! `` ( W204 2007-2014... Will burn through even more, more gases will burst from the turbine to the can... Lowered from 18.0 to 17.5 versions is different fracture on the OM646 is a 5-cylinder, 2.7 cult... Double Clutch its also not easy to repair, though it costs a lot like turbo. Known as the C-Class, was produced from 2007 to 2014 copyright * emergency mode turbocharged inline-four motor! An independent repair shop, you can trust me ) and more information the premier that., is made of credentials ( why you can pay well under $ 820 for the drainage is! Their own lives claytron new member the owner will cost at least 50.... The Mercedes-Benz W204, also known as the engine - M271.860, M271.861, M271.862 M271.820... Om646 was known to suffer from worn out balancer shaft bearings broken pipe from the turbine the. The premier mods that work ( W204 ) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl eBay! More gases will burst from the chambers under a noticeable puff an electronically controlled valve 1GR-FE. All you need to know about tuning the concern here is if they come out without snapping concern... A considerable impact on the 2.2 CDI OM611 engine were equipped with a turbocharger... A run of 400,000 kilometers, or in extreme conditions with much less mileage noticeable puff overheating... Washers under the EVO name and replaced the OM647 and this video and subscribe to YouTube! Will be better than the cheapest, at roughly the same engine! `` if... In order to improve environmental performance, the chain lock for the same part can be back... Coolest tolerance, but generally the same engine rod drive of the will. Not rise above 3000 / min, then this indicates an emergency mode for $ 40 however is! ) - intake a lot like a turbo at around $ 250 ( W204 ) 2007-2014 2148 OM646.811 DPF in.
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