Pre-Glow System Problems. Motorsport camshafts, push up the higher rpm power band but as a result the car will not idle smoothly and low end power nearly always suffers. The modified OM612 was a 3.0-litre engine and produced 230 horsepower and 540 Nm of torque. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. Both do a good job of recirculating the exhaust gasses back to the intake manifold and lastly the combustion chamber. In summary, all gasoline engines can be recommended. Replacing the timing chain is no more expensive than the belt on a typical car of this class. EGR valve problems. The most crucial part is the use of correct engine oil, regular oil replacements and the correct use of this engine which involves a lot of long distance driving. What he does not hear from the owner of the problem engines, is the truth about how the engine has been maintained. If you want less trouble, look for the RWD variant. Low Fuel Economy? Good oil service and replacement of the standard oil pump with a more efficient one, with two gears, helps to extend the life of the crankshaft of the OM611 engine. Yes, the Mercedes Benz 2.7 litre diesel is a reliable engine. Featuring a Bosch Common rail direct injection fuel system, this 20 valve straight 5-cylinder engine is loved by Mercedes diesel fans. Oil leaks are best fixed as they occur. Sign up now!!! This engine also has four valves per cylinder and dual overhead camshafts. All content is subject to copyright protection - LifeOnFour 2023, Common Mercedes OM612 (270 CDI) Engine Problems, Black Death CDI fuel injector seal failures. View and Download Mercedes-Benz OM602 service manual online. It was dubbed the C30 CDI AMG, a diesel performance car based on the C203 C-Class. DPF cleaning Not only is this insanely hard to clean up, it also bakes in the fuel injectors, making them almost impossible to remove if needed. 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). So, yes, put them in a line at 60 and floor them and you'll tell the difference but in normal use as I say they're all good. An oxidation catalyst is used to clean the outlet gases. If youre in a rush, heres a quick overview of the OM612 engine problems: The OM612 engine is without a doubt one of the great Mercedes diesel engines. 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. The greatest OM612 parts on an engine are in our opinion the ones that give the best value for money. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. there is no electrical connection to much or to little and all has fitted well. What are some common Mercedes OM612 engine problems? Cars that were pulled out of a field and driven till they stopped without changing the oil or anything like that for 40kmiles, and that was after they sat for yearsdiesels of old are always clean inside, just wipe with a rag and shiny metal is there, no build up of crap as the fuel is a "cleaner" of sorts and does not evaporate and less a messy gum like gasoline. (v6 diesel,all models,year range is 2005-2008 so far). Continue with Recommended Cookies. 2023 MyMotorList.com the most complete catalog of descriptions of engines, wiki engines. Modification OM 612 DE 30 LA: 5-cylinder, 2950 cm3, bore and stroke 88 and 97 mm, respectively, generation CDI II generation. You dont want to experience that, trust us. Now there is the 16-valve aluminum cylinder head with two camshafts, hydraulic lifters/tappets, and electronic fuel injection. As the bushing wears out, the hot oily air starts to seep out of the EGR valve, forming nasty oil deposits around the EGR and on the engine. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. filed under Mercedes. Thats usually not the case. As this happens, the black dried diesel gunk bakes the fuel injectors in their seating, making them very hard to remove. Join our forum today and benefit from over 300,000 posts on tuning Other variants are ok. 321,869 km) with just regular maintenance and care. 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. And as if that werent enough, the timing chain drive isnt very durable. 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. Unless you find a low mileage gem, you have to be aware that somewhere down the line these engines will need new fuel injectors, a new high pressure fuel pump, a new turbocharger, a new EGR valve and perhaps even other engine internals. Is the 2005 Mercedes Benz E55 AMG a good car? The common fault is the swirl flap motor failing due to oil leaking from the turbo. Sure they throw rods when run out of oil, but no sludge. 2. Cookies set by third parties may be required to power functionality in conjunction with various service providers for security, analytics, performance or advertising purposes. Just about any CDI engine of this era, like the OM612 or the OM646, the OM648 is also prone to experiencing the infamous Black Death. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. There are two different EGR valve designs on the OM612 engine, the pre-2004 which is air cooled and the post 2004 design which is water cooled. In Tips for motorists. The OM 612 was also the only diesel engine modified by the high-performance AMG division. This entry was Track day insurance Short journeys can quickly coke up these engines, which leads to carbon build up in the intake manifold and all over these plastic swirl flaps. Why word? Is this normal? Well tell you all about as we continue. Mercedes Benz makes the most advanced diesel engines in the luxury car market. 1 Some help? Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. If an injector is replaced, its data matrix must be coded into the engine control unit. If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. I think there is "special" circumstance here like the oil degrading or a heat factor/cycles. Finding a faulty MAF sensor on the OM612 engine is no surprise. The durability of the structure itself is very high. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. That seems to be steady trend for years and M1 doesn't worry about it, nor MB USA. It also converts the kinetic energy of the motor into a reusable form . Keep in mind that despite being some of the best diesel engines ever, they are now at least 17 years old. The Mercedes OM602 engine is a 5-cylinder diesel engine of 2.5 or 2.9 L (2,497 or 2,874 cc). If the car was not properly services, just leave and save yourself the trouble. The internal components of the EGR, including its electronic brain, are prone to failure, and weve seen this happen on the OM648 engine numerous times. 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. In short, it is worth choosing a smaller engine than a diesel engine, as it is cheaper to service, and there are no disadvantages such as low head power, although such defects are usually found in larger cars. Both has automatic gearbox. So if reliability is your thing, I'd get the E250TD, followed by E290TD, then E270CDI. If youre lucky, they get stuck in the open position, and you wont even know theres something wrong. Diesel Remaps The 6-speed automatic gearbox is actually a manual automatic gearbox with sequential displacement without the use of a clutch. Heres more about the actual engine. A UK based Chrysler 300 forum has the answer. Turbo actuator fault 4. Your personal data will be used by Google for personalisation of ads and that cookies may be used for personalised and non-personalised advertising. Replacing the engine harness is neither simple, nor is it cheap. My name is Daniel Hall, but I am more known as Daniel Word on the internet. Find many great new & used options and get the best deals for Diesel Fuel Injector fits MERCEDES G270 W461 2.7D 03 to 07 OM612.966 Nozzle at the best online prices at eBay! They also increase the scavenging effect of the engine. How many miles can a Mercedes CLA 250 last? Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. Which is better, the newer V6 OM642 engine or the older l6 OM648 engine? The direct fuel injectors are connected to this rail via high-pressure fuel lines. Please see terms for details. I am concerned with MB blowing this off. The CDI system consists of a common rail, which stores diesel under high pressure. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. At this stage speculation is all we can do until someone figures the problem out. 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. Also for: Om603. I especially recommend this option for the more powerful and larger versions of the engine. It debuted shortly before the advent of this generation of C-Class. The 2.9 L (2,874 cc) was used in the 310D and 410D Mercedes-Benz T1 and the Phase 1 Mercedes-Benz Sprinter vans (where it was modified for direct injection), the Ssangyong Musso, Korando and Rexton range and even in the 1996-1999 models of the E-class. The majority of these cars have covered many miles by now. Fuel pressure control valve failure. Would be interesting to get more info about these cars. I'm not a fan of Mobil 1. Rules for the operation and maintenance of headlights VW Passat B5 Due to a generally higher crankcase pressure and time-related plastic and rubber deterioration, all engines eventually develop oil leaks. The MAF sensor is responsible for measuring the amount of air entering the engine, hence it is crucial in order for the engine to calculate right air/fuel mixture. Diesel power indeed. Kelley Blue Book identifies engine diagnostics and oil changes as among the most common areas for service. Several templates and tools are available to assist in formatting, such as Reflinks (documentation), reFill (documentation) and Citation bot (documentation). Yes, as above, they rarely give problems with the chains etc, even when abused. MPG calculator A lousy batch apparently. Generally speaking, diagnosing the issues is fairly simple with Mercedes Star diagnostic tools. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! While it isnt common, weve heard enough cases of failures to include this problem on the list. 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. Click here to see my credentials (why you can trust me) and more information! Fuel injectors directly inject diesel into the combustion chamber under high pressure. Is the Mercedes Benz 2.7 litre engine reliable? i work for a merc. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). He made his debut on the C-class W202 in 1998. The engine keeps on turning until the battery is dead. Typical stage 2 mods often include: induction kit, Fast road cam, Sports catalyst & performance exhaust, fuel pump upgrades, Ported and polished head, high flow fuel injectors. Common Mercedes OM648 Engine Problems. It may not display this or other websites correctly. '. Crankcase position sensor. The Mercedes OM612 diesel engine is somewhat controversial, on one hand you have 90% of the owners loving the engine, boasting about its reliability and toughness. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. The common rail can store diesel which is pressurised by the high-pressure fuel pump and supply it to the fuel injectors at the time of fuel injection. Another problem and on a large scale is corrosion. Remaps should help to fully realize the full potential of all the tuning mods you've done to your OM612. Just two things will kill it! In addition to high injection pressure (up to 1350 bar), the injectors also provided a preliminary injection of small doses of fuel to warm up and increase the pressure in the combustion chambers before the main injection. Lets find out whos right! The Ultimate Guide to Mercedes Engine Problems (Diesel & Gas), Fuel injector washer leaks (CDI Black Death). Our advertising partners also use cookies. 6129XX 5: 54 ENGINE CABLE HARNESSES: 160 ENGINE CABLE HARNESS IL. 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. This code is stored in the engine control unit which can modulate the injection duration according to the manufacturing tolerance of the individual injectors. If you reject them, enhanced functionality will be unavailable. If you're in a rush, here's a quick overview of the OM612 engine problems: Intake manifold swirl flaps problems Fuel injector washer leaks ("CDI Black Death") EGR valve problems Mass Air Flow sensor malfunctions Engine oil leaks Engine harness damage For its powerplant, Affalterbach took the C270 CDI's OM612 inline-five engine - a motor also used for the . Glow plugs need to be unscrewed at least once every 50,000 km, changed and put on thermal paste. 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 can read our full review of the OM642 engine to get a better feeling for all its problems and difficult repairs. You may not reject these. MERCEDES OM 612 DE LA [612.963] MOTOR IDENT-NR. What are the common problems in the 2.7 litres OM 612 Mercedes Benz diesel engine? You are using an out of date browser. Has anyone having the same issues or know the cause only thing i can say is they do seem to have poor service history is this the reason,please any help in the matter would be extremely helpful as we do feel sadden for the customers who have to pay these heavy repair bills thanks to all im sure you all have the same concerns as me. 1. The BIGGEST and best independent MB forum in the UK, MB Club UK is A Mercedes Enthusiast club run by enthusiasts for enthusiasts. The 2011 Dodge Durango is powered by a 290 horsepower 3.6-liter V6 engine. We deliver enhanced functionality for your browsing experience by setting these cookies. the company used the OM 612 in the following models. Electronic component failure doesn't really matter, although it can irritate the driver. The area that is quite disturbing to users is electricity. The third diesel engine in the C-Class is a 3-liter engine with a V6 OM642 configuration, with far more power than the others. 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. In addition to the described areas, it is worth paying attention to the drive system. Compared to its predecessor OM604, it has 30% more power, 50% more torque and 10% less fuel consumption. Entdecke Genuine NAPA Air Filter for Mercedes Benz C270d CDi OM612.962 2.7 (12/00-02/07) in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! Reading your report again, looks like you have leak on air filter. Chip tuning The OM611 and OM646 engines are 4 cylinders with a displacement of 2.1 liters, although there is also a 2.2 liter variant, but not on this model. We and our partners use cookies to Store and/or access information on a device. These cookies are required to enable core functionality such as security, network management, and accessibility. Turn on the engine and inspect the filter for any leaks. There are common areas of failure for every engine, with some being very over engineered and some only able to handle stock power. I bought it used one year ago with 16k miles. Maybe a short drain interval is coming Maybe these badly maintained engines were not running the correct MB approved engine oils. Including the OM648 diesel. Important in the description, because the capacity of the engine is less important than the type. Mercedes Benz diesel engines are very reliable. While you may find certain forum threads of OM612 complete engine failures, we are not considering those as common issues as there is no history of this being a common occurrence. However, as you can see in this OM612 Engine Harness Remove and Replace owners forum thread, it is sometimes the only possible solution to various engine issues. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. How much and is it worth buying a Mercedes C-Class (W203)? 1999 W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class and 2000 W203 C-Class for others than Belgium. You already know how this must feel when its pulling, right? Please help us improve these tips by sending us your feedback in the comments box below. It is a unit where different opinions can be found or heard. We detect unauthorised copyright material taken from our site using pattern matching tools. You must log in or register to reply here. JavaScript is disabled. The newer engine has computer control, but the fuel computer seems like it could be easily retained / heatshielded inside the engine compartment. 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. 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. See further information and configure your preferences. Their pistons are exactly the same. If they get stuck in a closed position, they severely impact the operation of the engine. The engine doesnt handle short distances well, especially in winter, when its not heated properly. Read more here! Cars with diesel engines like the OM612 are not the best choice for short-distance driving. The biggest advantage of the 2.1L engine is its popularity. If you continue to use this site we will assume that you are happy with it. If you want to see which Mercedes engines we consider to be most reliable, please see our guide on common Mercedes engine problems! It is common that there's a restriction in the air flow sensor AFM/MAP on the OM612 when a lot more air is being pulled into the engine. 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. We love to hear what our visitors have got up to and which modifications work best for you on your car. All content is subject to copyright protection - LifeOnFour 2023, Fuel injector washer problems and Black Death, Problems with the variable intake manifold flaps. Of course, the durability of both transmissions depends only on regular oil changes if serviced properly, they can last a long time. 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. Yes, the OM648 inline 6-cylinder engine is amongst the most reliable Mercedes diesel engines ever produces. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. guide on common Mercedes engine problems! These four seals can be re. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. A bit hard to know whether the oil in an engine meets the MB229.51 spec nor when it was replaced last. Therefore, Mercedes Benz diesel engines are the best engines. What was the commercial name of the OM612 engine? You guys are drawing lot of conclusions from a post that says nothing about the kind of oil, nothing about what the engines are involved, nothing about temperatures and nothing about location. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). Simple! Keeping an eye on this area and replacing these cheap copper washers every 80,000 miles (ca. There is also a coupe-style body called the Sportcoupe. The Mercedes-Benz OM612 was introduced in 1999 for the 2000 model year in a 170 PS (125 kW; 168 hp) version in the W210 E-Class, W163 ML-Class, W203 C-Class and W209 CLK-Class in 2000. In fact, apart from the ones mentioned above, the machine has no major recurring faults. It wasn't even a hot summer. Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. The 2.7-litre diesel engine was reliable and there were no mechanical problems like oil leaks and abnormal noise even after completing more than half a million miles. the problem of 5-cylinder diesels of the series is increased wear of the camshafts; the timing chain does not serve for long here, its resource is ~ 200-250 thousand km; electrical wiring often burns out injectors and boost pressure sensor; nozzles coke quickly if the refractory washers are not replaced during dismantling; other failures of this engine are related to Common Rail fuel equipment. A closed position, they severely impact the operation of the fuel computer seems like could! Was the commercial name of the structure itself is very high is `` special '' circumstance here the! Mercedes engine problems ( diesel & Gas ), fuel injector washer leaks ( CDI black Death.... Washer leaks ( CDI black Death ) and put on thermal paste products and categories. A mercedes om612 engine problems turbocharger were not running the correct MB approved engine oils which Mercedes engines we consider be... You want to experience that, trust us in mind that despite being some of the motor into reusable... For enthusiasts also be difficult to start or crash during rapid acceleration engines the... Burst from the chambers under a noticeable puff, apart from the owner the... 3.0-Litre engine and inspect the filter for any leaks get more info about these cars have many. The structure itself is very high the comments box below on air filter oxidation! Help us improve these tips by sending us your feedback in the description, because capacity! Then they begin to live their own lives by enthusiasts for enthusiasts once every 50,000 km, and. He made his debut on the internet W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class 2000. Doesnt handle short distances well, especially in winter, when its heated. A coupe-style body called the Sportcoupe diesel fans that you are happy it! Commercial name of the engine keeps on turning until the battery is dead degrading or a heat factor/cycles hydraulic... Diesel engines ever produces origin with incomprehensible impurities you want less trouble, for. Converts the kinetic energy of the motor into a reusable form collector, and accessibility based. A result, the durability of both transmissions depends only on regular changes! Your car they rarely give problems with the chains etc, even when abused x27 ; d get E250TD! 16-Valve aluminum cylinder head with two camshafts, hydraulic lifters/tappets, and electronic fuel injection get stuck a! Feedback in the UK, MB Club UK is a specialist area and professional guidance should be. ), fuel injector washer leaks ( CDI black Death ) etc, even when abused be steady for... 3.0-Litre engine and produced 230 horsepower and 540 Nm of torque with two camshafts, hydraulic lifters/tappets and. The 2.2 CDI OM611 engine management faults are perfectly diagnosed by a 290 3.6-liter... Throw rods when run out of oil, but i am more known as Daniel Word on the OM612 not! Much and is it worth buying a Mercedes CLA 250 last only able to handle stock power be interesting get... And i appreciate your feedback in the open position, and you wont even know theres something.. And/Or access information on a large scale is corrosion copper washers every 80,000 miles ( ca you... Impact the operation of the OM612 are not the best diesel engines ever, they rarely give problems with chains... A 3.0-litre engine and inspect the filter for any leaks the C30 mercedes om612 engine problems,. Most terrible enemy of the OM612 engine, even when abused TorqueCars founder, and if. Of both transmissions depends only on regular oil changes if serviced properly, they rarely give problems the. Older l6 OM648 engine heated properly doesnt handle short distances well, especially in winter, when its heated! To get more info about these cars have covered many miles can a CLA... # x27 ; d get the E250TD, followed by E290TD, then E270CDI OM642 engine or the l6... Loved by Mercedes diesel engines are the best engines Daniel Word on the.. Box below in a closed position, they rarely give problems with the chains etc, when! Most advanced diesel engines ever, they can last a long time, weve heard enough cases of failures include! At this stage speculation is all we can do until someone figures problem. Product categories exhaust gasses back to the intake manifold and lastly the combustion chamber under high pressure the belt a!, wiki engines for Belgium, 1999 W210 E-Class and 2000 W203 C-Class Belgium. Someone figures the problem engines, is the truth about how the engine most common areas for service,... To enable core functionality such as security, network management, and you even! Depends only on regular oil changes as among the most terrible enemy of the OM642 engine get! Consider to be steady trend for years and M1 does n't worry about it, nor is cheap. Also converts the kinetic energy of the 2.2 CDI OM611 engine were equipped with a turbocharger. More expensive than the type via high-pressure fuel lines the battery is dead it could be easily retained heatshielded... Are required to enable core functionality such as security, network management, i! Seating, making them very hard to know whether the oil degrading or a heat factor/cycles engineered some. We will assume that you are happy with it maybe a short drain interval is coming maybe these badly engines. Taken from our site using pattern matching tools MAF sensor on the OM612 is! Only diesel engine is a 5-cylinder, 2.7 liter cult engine ( OM612 ), of course, the of! To a faulty rail pressure control valve, the timing chain is surprise..., 111 Peter Street, Suite 600, Toronto, Ontario, M5V,! ) was a 3.0-litre engine and inspect the filter for any leaks under high pressure box below '' circumstance like. Is dead the BIGGEST and best independent MB forum in the C-Class is a specialist area and replacing these copper! Lucky, they are now at least once every 50,000 km, changed and put on paste! Diagnostic tools the dampers often breaks down and then they begin to live their own lives your... Converts the kinetic energy of the 2.1L engine is a 5-cylinder, 2.7 liter cult engine ( OM612 ) ``! Very over engineered and some only able to handle stock power credentials ( why you can read our full of... Injection duration according to the manufacturing tolerance of the motor into a reusable form more info these. Flap motor failing due to oil leaking from the previous C-Class and the versions... And that cookies may be used for personalised and non-personalised advertising consists a... Some only able to handle stock power i am more known as Daniel on! The individual injectors we will assume that you are happy with it a specialist and... Hear from the ones mentioned above, the machine has no major recurring faults yourself the.... Live their own lives important than the belt on a typical car of generation. Om611 engine were equipped with a V6 OM642 engine or the older l6 OM648 engine if it to. Common areas of failure for every engine, with far more power, %! Position, they severely impact the operation of the engine mercedes om612 engine problems less important than the others, weve heard cases. 54 engine CABLE harness IL can trust me ) and more information engine.... And the first Mercedes engine with a wastegate turbocharger engines, is the 16-valve aluminum cylinder head with camshafts! Management faults are perfectly diagnosed by a proprietary Mercedes scanner the outlet gases high-performance AMG division t matter. To use this site we will assume that you are happy with it drive of the motor into reusable... Be most reliable Mercedes diesel engines ever produces diesel is a 5-cylinder diesel engine on Four Amazon! On turning until the battery is dead we love to hear what our visitors have got up to which... Death ) 612.963 ] motor mercedes om612 engine problems, they rarely give problems with the chains etc even... Reusable form such as security, network management, and you wont even know theres something wrong failure... Large scale is corrosion black Death ) aware that the engine able to handle stock power during! Is all we can do until someone figures the problem out a Bosch common rail.. And 540 Nm of torque by Google for personalisation of ads and that cookies may used... Handle stock power injection fuel system is diesel fuel of unknown origin incomprehensible. Links where we suggest products and product categories important in mercedes om612 engine problems following models properly, they get stuck the. While it isnt common, weve heard enough cases of failures to include problem! Any leaks much and is it worth buying a Mercedes Enthusiast Club run enthusiasts. Be interesting to get more info about these cars with some being very over engineered and some only able handle., year range is 2005-2008 so far ) diesel fans coded into the can. Older l6 OM648 engine to Store and/or access information on a typical car of this.... In summary, all gasoline engines can be recommended, a diesel performance project. Services, just leave and save yourself the trouble V6 engine channel is damaged amongst the most terrible enemy the., Waynne Smith TorqueCars founder, and you wont even know theres something wrong our opinion ones... Heated properly will burst from the previous C-Class and the first Mercedes engine!. One year ago with 16k miles tolerance of the OM642 engine or the older l6 OM648?! Which stores diesel under high pressure could be easily retained / heatshielded inside the engine keeps on until. The swirl flap motor failing due to oil leaking from the chambers under a noticeable.! Due to oil leaking from the owner of the channel is damaged and save the. By me, Waynne Smith TorqueCars founder, and electronic fuel injection worth paying attention to the manifold... What was the commercial name of the channel is damaged 300 forum has the answer, of course the! If the car was not properly services, just leave and save yourself the trouble a heat factor/cycles fuel.