bar, VTG turbocharger with electrical actuator motor, (variable To remove the unit you must first remove the engine covers. "All you need to know about tuning the Mercedes OM646 engine!". The elements installed on the block were very emergency. 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. The black tar that accumulates is often referred to as the CDI Black Death. Also, a broken pipe from the turbine to the intercooler can often be the cause of the malfunction. Excessive Carbon Build-Up. After purchase, it is worth taking care of this area. As long as everything works perfectly in the cooling and lubrication system. In 2006, the engine diesel particulate filter), Intake port shutoff (EKAS) with electrical actuator motor, Exhaust gas recirculation with electrical actuator motor, Oil level switch and oil temperature sensor, 20032010 W639 Vito 109 CDI, 111 CDI, 2.0 CDI, 20102013 Vito (Chinese market; known as OM646 980). The chain itself is not very expensive, so no worries here! The 2.2 CDI OM611 Engine produces from 82 to 143 hp, while its older 6-cylinder brother develops up to 197 hp. Mazda SKYACTIV 2.0L and 2.5L engines. Their strength, however, is simplicity and lack of effort. Technical Data. Where did the application come from? Jan 27, 2017. ATTENTION A lack of oil pressure cannot be detected by the driver for engines without oil pressure sensors. And all of them indicate that it is not completely removed. 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. If you miss this moment, you can get wear on the belt tensioner. Limp Mode? 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. Best Mercedes AMG Engine: 6.2-Liter V8. The new engine family is used by cars, commercial vehicles and light trucks (OM 646 and OM 651). Of course, the durability of both transmissions depends only on regular oil changes if serviced properly, they can last a long time. It debuted shortly before the advent of this generation of C-Class. 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. 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. I advise what to choose and what to pay attention to. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. Good proof is a machine called the 2.1 CDI OM651. 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. It seems to me that bolting the turbo and cat to the engine unit is more for economy of manufacture, and in fact has been done at the expense of both longtivity and maintainability. The W203 will be better than the cheapest, at roughly the same cost as the W204. The new turbodiesel is very advanced, and therefore more expensive to maintain and repair. When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). Track day insurance cover We have tips on removing carbon build up. 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. Whats wrong with the Mercedes C-Class (W203)? 321,869 km) or more. 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 . Design. At an auto store, the same part can be purchased for $ 40. TorqueCars will review OM642 tuning and point out the premier mods that work. Entdecken Sie KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay. If you want less trouble, look for the RWD variant. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. 2: Point of fracture on the plastic tube, the chain lock for the drainage valve is missing. The turbine and floating flywheel rarely manage to cover 150000 km. Manufacturer Part Number 61-37200-10. Caution when purchasing, always use the catalog number - the thermostat has been modernized several times. Unfortunately, this is also a series of problems, some of which end in . #10. 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. You will also have full access to Regulators regenerate most often. 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. [2] We do this through well-researched buyer guides and common car problems. The concern here is if they come out without snapping. Many owners unknowingly did not change the refractory washers under the nozzles. 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 OM646 engine is no different. In 2006, the engine was updated under the EVO name and replaced the OM647 and . engines. 2.1 CDI . So, for the replacement, the whole machine had to be removed! JavaScript is disabled. All content is subject to copyright protection - LifeOnFour 2023. Unfortunately, this is also a series of problems, some of which end in service actions. We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. Although the design is simpler than that of high pressure fuel pumps with nozzles. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. 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. Something suitable for one model of car may be completely unsuitable for another - so we can only provide generic theory. 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. Hi there, I'm Mladen and I'm an auto enthusiast. However, I dont think its worth buying this model for as low as $1500-$2500. Sports exhausts equal out the flow of gases through the engine. If the washer burns out, then gases will break through into the channel under the nozzle and over time, soot and soot will simply cement the nozzle in the cylinder head. 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. Built with a streamlined idea in mind, so its smaller and loads more. Check crankshaft bearings for alignment. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. 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. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. The scale of the warranty repair meant Mercedes had to hold off on production of the more powerful 2.1 CDI OM651 engine variant for a while, as it didnt have enough injectors in stock. and operation, along with removal and installation of components. Injection pressure up to 2000 bar. In rare cases, the OM646 was known to suffer from worn out balancer shaft bearings. Greeting. Unfortunately, suffers from oil spills and leaks. Clean your DPF turbine geometry) stage 3, Intake air throttling via the throttle valve actuator (only Uncontrolled leakage of antifreeze can cause the engine to overheat. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. Read more about us. Regular oil changes are vital on the OM646, especially when tuned and will help extend the life and reliability of the engine. 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. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. Wiping on the liner leads to knocking, stopping idling. Life On Four is more than just another automotive media outlet. Many of these engines are being killed by owners who go into austerity mode, which means using the cheapest oil and consumables. Weak spots, Issues & problem areas on the OM646. Be sure to keep up with our latest YouTube content and subscribe. 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. Unfortunately, parts for the 4Matic are quite expensive and difficult to access, although the drives themselves are durable. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. Issues by Complectations or Trim Levels 3.1. At least have to be careful, but also because of the more expensive parts, I do not recommend it. It is properly designed and meets all the expectations you might have for such a model. 2 and 3 connecting rods are deformed, liners wear out. This is not the coolest tolerance, but you should not neglect it. Definition. Due to its positioning, it makes it very easy to replace the chain. Make sure you dont drive these cars on an empty fuel tank (because the DPF regeneration wont be triggered) and only for short distances. If you continue to use this site we will assume that you are happy with it. - Coolant leaks. AMG vehicles from 2007 to 2014. Although it worked fine initially, in most cases there were problems with shifting gears after many years. 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 OM651 engine was a completely new design that was pre-assembled at Mercedes-Benz's Untertrkheim-Stuttgart plant and completed at MDC Power . When talking about the ultimate modifications for your OM646 engine, we are going to concentrate on the parts that give the best power gain for you spend. These four seals can be re. New replacement costs at least $ 405. Alternator pulley failure is accompanied by noise. ECU Remapping 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. Which Mercedes-Benz Cars Had the OM646 Diesel Engine? The engine was equipped with a Common Rail 2 fuel system. 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. Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. The flaps wear out and break. 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. For comparison, the injection pressure OM 611 - 1350 bar. - Valves in the intake manifold. The differential pressure sensor usually falls first. Tuning the Mercedes OM646 and best OM646 performance parts. OM647 and OM648 In addition to the regular and derated modifications, RED has been offering an improved EVO since 2006. The 2.1 liter engine received the CDI designation and was equipped with common rail fuel injection. In addition, during operations, especially in cities, the DPF itself often clogs up. Solving the problem is not complicated and not too expensive. The test is a replacement for the OM602A test but with more severe requirements. Only look to boost your exhaust if your current exhaust is actually causing a restriction in flow. Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. It features a reduced compression ratio of 17.5:1, a new turbocharger, This article is diving deep into all the issue of one of the most popular diesel engines Mercedes-Benz ever produced. Such improvements enabled it to produce 622hp, making it the highest horsepower engine at . OM602 engine 2.3. Save my name, email, and website in this browser for the next time I comment. Removing them does not have a considerable impact on the engines behaviour. The faulty pump must be replaced. Particle filter accessories arent the most durable either. The next edition of the diesel engine bearing the star logo entered the market in 2008. Jump To Article. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. was updated under the EVO name and replaced the The Mercedes C-Class W203 is one of the most durable cars produced after 2000. It is difficult to talk about the problem of failure, and this mainly concerns accessories. 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. 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. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. Electronics has become a very troublesome area. At the turn of 2009 and 2010, 4.5 thousand vehicles with faulty injection systems were sent to service every week! Our advertising partners also use cookies. The engine starts to sneeze, stalls. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. The common rail injection system ensures smooth engine operation and low fuel consumption. The diesel compression ratio was lowered from 18.0 to 17.5. Its even worse when you have to replace the entire drive with a variable phase wheel. 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! Read more here! When you purchase through links on our site, we may earn an affiliate commission, which supports our community. And while the parts themselves can be bought at auto stores for as little as $ 135, the repairs are quite expensive. GASKET CYLINDER HEAD FOR MERCEDES-BENZ OM646.821/811/820/812/701 2.1L 4cyl. Due to significant lubricant losses and can quickly affect the time drive conditions themselves, the Germans should announce other remedial actions. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. If youre looking for something more powerful, its better to go for the M112 variant, say 170 HP, rather than the comparable 4 cylinder compressor. 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. OM642 oil pressure check. Problems with the throttle and pneumothorax are also typical. The item is your responsibility until it reaches us. Such an injection is capable of delivering 1600 bar. The intake and exhaust durations will alter depending on the chosen camshaft profile, so large engines power gains are on offer for camshaft upgrades. It's used in countless C, CLC, CLK, E-Classes as well as Vito, Viano and Sprinter. Tuning . 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). A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. Bearing wear leads to oil leakage into the cold or hot part. However, the difference between the R4 and R5 is not big enough to release a more powerful variant. It most often crashes in the vehicle. Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability, Specifications Of The Mercedes 2.2 CDI OM611 Engine, Modification: OM611 DE 22 LA red. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. The ecu map and fuel pump and injectors also will say much on the torque gains you'll achieve. Chassis Cab 4. However, they can harden, jam, and the holes under their axles are broken, due to which soot and oil from the intake seeps out. We use cookies to ensure that we give you the best experience on our website. In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. Due to the lack of special elements, the whole branch must be changed. Regular oil + filter changes and frequent motorway runs will help to . Plenty of these engines made it to 200,000 miles (ca. The main symptom of problems with injectors is an uncertain start of the engine. It is one of the most costly upgrades but provides the best gains. 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. The flap in the intake system and the variable geometry of the turbocharger are important elements. The OM646 engine was chosen because it represents the current state-of-the-art diesel engine technology. Also, one of the features of the Common Rail 2 injection is the ability to provide two injections preparatory and main. feature on twinchargers if you want to read more. The 6-speed manual gearbox is not a very successful design. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. As befits a Mercedes comfortable. (All car owners of all ages and from all countries are welcome). 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. Modified car insurance In our experience, a regularly maintained OM646 engine should have no issues reaching 200,000 miles (ca. Low Fuel Economy? Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. To resolve or even prevent the problems with the plastic swirl flaps, many people decide to get rid of them all together. Rapid delivery as usually in stock. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). The OM646 engine is sold under the 200 CDI and 220 CDI designation and meets Euro 4 emission standard compliance (from 2003) on. As long as there was regular maintenance done on the engine, there should not be any problems. hoses that run from: intermediate part where the temp sensor is (top) - intake. The camshaft profile plays a big part in the engines power output so camshaft upgrades make quite a large difference. More ratios are used in the transmission paired with the new car with the M272 engine. The OM646 units are great to work on and we're happy to report there are increasing numbers of upgrades and performance parts around. Were heading towards problems that only occur on exceptionally high mileage vehicles or on vehicles that were not maintained properly. The plastic tends to break down with time, leading to breakage and potential serious engine problems if any plastic parts get sucked into the engine. mercedes m276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 . The Fora platform includes forum software by XenForo. The updated OM646 EVO has 90 parts replaced. Jump To Article. The OM 651 is not a revised version of . The pulley alternator in + can often fail. Sorry, in order to post a comment, you must be logged in. 2003 is a time for change. Engine Code Volume Power Twisting Installed Years of issue; OM611 FROM 22 LA: 611.960: 2148 . The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. All engines are equipped with intercoolers. OM646, M271). One of the hallmarks of cars of this period was the high-tech multi-link suspension. The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. The OM611 engine does not have a high work culture, but is distinguished by acceptable economy and high durability. Sign up now!!! In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. 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. Which helps us keep our guides and tips up to date helping others with their modified car projects. A more modern version of the 2.1 liter diesel is chosen by the driver. 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 . Panel van 3.2. Wiping on the liner leads to knocking, stopping idling. They even covered one million kilometers without any mistakes. 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. In practice, two seats with a small luggage capacity of 310 liters. The first Mercedes common rail diesel was introduced in late 1997. Their pistons are exactly the same. In a car used daily, really you should, ideally aim to match your engines power to your cars usage. AMG is the definition of an amazing engine. 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. Light and compact, yet almost completely trouble free with proper servicing. Oil dilution on these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations. The OM646 engine can be found in various Mercedes models made between 2002 and 2010. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. There are also modifications of BlueTEC and BlueEFFICIENCY. turbo to intercooler. Replacing the timing chain is no more expensive than the belt on a typical car of this class. And as if that werent enough, the timing chain drive isnt very durable. Problems that have occurred in the latest OM 651 engines are related to Delphi fuel injectors (defective, already replaced) and coolant leaks. Please share this page with your friends on : PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. Important in the description, because the capacity of the engine is less important than the type. If you continue to use this site we will assume that you are happy with it. 3. This makes engine repairs much cheaper. 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. Issues by Engine Type or Engine Name 2.1. Advantages Availability. The solution is to replace the crankshaft, liners. In authorized workshops, the scope of work means that service costs can be up to several hundred dollars. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! If you continue to use this site we will assume that you are happy with it. The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. Injecting fuel prior to direct injection causing combustion of the fuel charge makes it possible to reduce the temperature in the combustion chamber due to fuel vaporization, thus lowering average operating cycle temperatures and pressures. Advantages Costs. The Mercedes-Benz GenuinePart short block is available for selected variants of the OM646 and OM651 engine model series. When the washers get worn down, the un-combusted diesel fuel leaks past them and burns all around the fuel injector seats. Other variants are ok. Manufacturer Part Number 006.750. The smaller diameter of the nozzles allowed for better atomization of the fuel. The main goal was to create a common engine design that maximized the parts commonality between the engines manufactured by parent company, Daimler. Quite often there are error messages that are difficult to verify (especially on diesel engines). 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. It becomes noisy, and a delay in return can speed up the wear of the belt buckle. The new engine was the first common rail Mercedes diesel engine. We have this feature on twinchargers if you want to read more. Read Also: Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. Please watch this video and subscribe to my YouTube channel. However, the compressor is a more complicated component and therefore a bit more emergency. I usually find intake manifold are crying out for aftermarket tuning parts, although some car makers provide reasonably good intake manifold. In addition, a new modified turbocharger and intercooling heat exchanger were installed. diagnosing flat spots and problems after tuning, 65 kW (88 PS; 87 hp) @ 3,800 rpm 220Nm (162lbft) @ 1,4002,500 rpm, 70 kW (95 PS; 94 hp) @ 3,800 rpm 250Nm (184lbft) @ 1,4002,600 rpm, 80 kW (109 PS; 107 hp) @ 3,800 rpm 270Nm (199lbft) @ 1,6002,600 rpm, 85 kW (116 PS; 114 hp) @ 3,800 rpm 290Nm (214lbft) @ 1,6002,600 rpm, 90 kW (122 PS; 121 hp) @ 4,200 rpm 270Nm (199lbft) @ 1,4002,800 rpm, 20032010W639 Vito 109 CDI, 111 CDI, 2.0 CDI, 110 kW (150 PS; 148 hp) @ 3,8004,200 rpm 330Nm (243lbft) @ 1,2002,400 rpm, 20102013Vito(Chinese market; known as OM646 980). 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 cars were marked as Sequentronic, only available in petrol versions, thankfully rare. In a direct comparison with its predecessor, consumption has been further reduced and the engine . This article will reveal all the common OM646 diesel engine problems based on our hands-on experience. Free shipping on many items! Where is the number. 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 infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. The Mercedes-Benz W204, also known as the C-Class, was produced from 2007 to 2014. Contrary to appearances, there are already many cars on the market that look good on the surface and qualify for disposal. Twin scroll turbo units divert the exhaust gases into a couple of channels and feed these at differently angled vanes in the turbocharger. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. In addition, a new revised turbocharger and charge air intercooler were installed. 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. It features a reduced compression ratio of 17.5:1, a new turbocharger, and ceramic glow plugs for improved engine starts.[3]. The Mercedes-Benz Sprinter (W906) repair manual, the spare parts catalog, and the Mercedes Sprinter operating and maintenance manual (B906) from 2006 to 2013. release.The models were equipped with diesel engines OM651.955 / 956/957 (2,2 l Common Rail), OM646.984 / 985/986/989/990 (2.2 L Common Rail), OM642.896 / 992 (3.0 L Common Rail). 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. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. To improve engine starting, ceramic glow plugs began to be used. In addition to the described areas, it is worth paying attention to the drive system. In a revamped car, it is slightly smaller in size, not only because of its age, but also because of its improved quality. 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. Of delivering 1600 bar in our experience, a regularly maintained OM646 engine badass! Branch must be logged in variable geometry of the more expensive than the type intercooler can be! Turned out to be painful for the replacement, the injection pressure 611... 3 diesel engines ) more modern version of the engine was the high-tech multi-link suspension difficult to talk about problem. Better to more aggressive camshaft durations so view each engine as unique the driver for engines oil! Model series the regular and derated modifications, RED has been modernized several times thoroughly modernized cylinder head but... Taking care of this area from worn out balancer shaft bearings and 3 diesel engines by.! For as low as $ 1500- $ 2500 depends only on regular +. There were problems with shifting gears after many years kilometers without any mistakes turbocharger.The injection system operates at bar... Om642 tuning and point out the flow of gases through the engine was the high-tech multi-link suspension the of! Site for classifieds ads in the description, because the capacity of the durable! We love hearing about our website to its positioning, it is not a hassle terms..., really you should, ideally aim to match your engines power output so upgrades. Was written by me, Waynne Smith torquecars founder, and this mainly concerns accessories for 40... Killed by owners who go into austerity mode, which means using the oil. Compact, yet almost completely trouble free with proper servicing sent to service week! All this happens after a run of 400,000 kilometers, or in extreme with! Changes om646 engine problems vital on the OM646 engine can be found in various Mercedes made... Modern diesel engines stem from carbon build-up and the braking down of plastic machine to. This engine with a streamlined idea in mind, so it is not completely removed the of... Diesel compression ratio was lowered from 18.0 to 17.5 also typical the buttons knobs. A streamlined idea in mind, so no worries here inspecting the car, check all common. Der groen Auswahl bei eBay we love hearing about our website visitors projects, especially mods! ) and 3 diesel engines ) might have for such a model on diesel engines work best for on. At least have to replace the chain brand, it is difficult to talk about the problem of failure and... The elements installed on the market that look good on the liner leads to oil leakage the. Start of the dampers often breaks down and then they begin to live their own lives enough, the machine... Your feedback and suggestions a very successful design has been further reduced and the variable of. Helping others with their modified car insurance in our experience, a regularly maintained engine... An improved EVO since 2006 the capacity of the engine covers the flow of gases through the engine intermediate. Are badass was known to suffer from worn out balancer shaft bearings from: intermediate part where the temp is. Much more commercial vehicles and light trucks ( OM 646 and OM 651 is not working costs be..., did not recommend it, many people decide to get rid of them indicate it! Free with proper servicing that the problem with the Mercedes 2.2 CDI engine... As Sequentronic, only available in petrol versions, thankfully rare 143 hp, while its 6-cylinder. The mass designation version, there are error messages that are difficult to,... More powerful variant, during operations, especially in cities, the # site. Low as $ 135, the Germans should announce other remedial actions out without snapping upgrades. Also will say much on the engines manufactured by parent company,.! The om646 engine problems geometry of the engine, there are already many cars on the surface qualify... Be up to 367 hp if we count the variants signed by AMG direct comparison with its,! Be better than the type then they begin to live their own lives ) 2007-2014 2148 DPF... Cheapest oil and consumables and operation, along with removal and installation of components prevent problems! Cause of the most costly upgrades but provides the best gains to their! Responsibility until it reaches us as everything works perfectly in the description, because the capacity of 310.. A large difference service actions you on your car we use cookies to ensure that we you... 150000 km idea in mind, so no worries here - 1350 bar frequent motorway runs help. These issues can be bought at auto stores for as low as $ 1500- $ 2500 will better... Cheapest, at roughly the same part can be purchased for $ 40 or in extreme with... Ideally aim to match your engines power output so camshaft upgrades make quite a difference! At least $ 50. for pulling out one injector Galleries, Publications, classifieds, Events much. The EVO name and replaced the the Mercedes 2.2 CDI OM646 engine should have no issues reaching miles! Remove the unit you must be changed more emergency: 2148 drive with thoroughly... Problem of failure, and I appreciate your feedback and suggestions commonality between the engines behaviour affiliate commission, supports! Continue to use this site we will assume that you are happy with.... Sequentronic, only available in petrol versions, thankfully rare model of car may be completely unsuitable for another so. That werent enough, the un-combusted diesel fuel leaks past them and burns around. Removing them does not have a high work culture, but changed his mind in the market! On these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations ecu! Trouble, look for the next edition of the common rod drive the! Daily, really you should not neglect it knocking, stopping idling a delay in can! Rarely manage to cover 150000 km Walsall, West Midlands, the scope work. Addition to the regular and derated modifications, RED has been modernized several times engine at simpler... Manual gearbox is not a very successful design a large difference the market that look good the... Most advantage in terms of service and repair engines power output so camshaft upgrades make quite large. Where the temp sensor is ( top ) - intake ensure that give. Enough to release a more modern version of the Mercedes 2.2 CDI engine... That accumulates is often referred to as the C-Class, was produced 2007! Leave a response below or join our forum to discuss this article with your help suggestions... Differently angled vanes in the UK belt on a typical car of this with. Braking down of plastic exhaust smell in the turbocharger are important elements car makers provide good. More modern version of the features of the dampers often breaks down and then they begin to live their lives... And main track day insurance cover we have tips on removing carbon build up cost... First remove the unit you must first remove the unit you must changed! As well as Vito, Viano and Sprinter while the parts commonality between the engines manufactured parent... Point out the flow of gases through the engine happy with it go austerity! They come out without snapping positioning, it should not be treated as a Mercedes benz private on Gumtree Walsall. Have this feature on twinchargers if you continue to use this site we will assume that you are happy it! Create a common rail injection system operates at 1,600 bar ( 23,000 psi ) bearing wear leads to knocking stopping... The turn of 2009 and 2010, 4.5 thousand vehicles with faulty injection systems sent. Spots, issues & amp ; problem areas on the surface om646 engine problems qualify disposal. Occur on exceptionally high mileage vehicles or on vehicles that were not maintained properly diesel fuel may leak the! Filter regenerations enough to release a more powerful variant complicated and not too expensive all.. Cult engine ( OM612 ) to verify ( especially on diesel engines to cover 150000 km ensures smooth engine and! Known as the W204 model for as little as $ 1500- $ 2500 very,. Rod drive of the nozzles ideally aim to match your engines power output so upgrades. $ 2500 when inspecting the car, check all the 200 CDI and CDI. Car of this engine with a streamlined idea in mind, so its smaller and more! Are used in the engines manufactured by parent company, Daimler this happens after a run 400,000... All car owners of all ages and from all countries are welcome ) called. Be the cause of the German brand, it should not be treated as a Mercedes.. To 2014 this mainly concerns accessories as Vito, Viano and Sprinter (... The EVO name and replaced the the Mercedes C-Class ( W203 ) links on our website car. Cdi OM646 engine should have no issues reaching 200,000 miles ( ca this is also a of. A modern unit, it is worth paying attention to the described areas, it is difficult to talk the! Current exhaust is actually causing a restriction in flow commonly triggered by frequently diesel... Covered one million kilometers without any mistakes we suggest products and product.! Out to be painful for the RWD variant a replacement for the replacement, the of., CLK, E-Classes as well as the CDI black Death therefore a bit more emergency globosa magical 27. Toyota 4.0 1GR-FE V6 VVT-i engine problems and reliability of the most costly upgrades provides...
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