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Due to the deterioration of the copper fuel injector washers, the pressurized and un-combusted diesel fuel is able to seep past the copper washers, creating a sticky, black mess around the fuel injectors. The BlueTec technology includes catalytic converters and diesel particulate filters to meet the exhaust emission requirements. Fuelling is usually the first thing to top out, and this happens around the 240bhp mark - you'll need a fuel pump and injector upgrade at this point. styling and friendly car banter. Glow plugs need to be unscrewed at least once every 50,000 km, changed and put on thermal paste. How many quarts of oil does a Mercedes Benz E350 take. The issues that we list here are based on our experience, web research and NHTSAs owners complaints. Fuel Rail pressure regulator!, sticky and degraded.I double checked my data and these run more like 25,000psi, not 60, but these systems still run at very h. A UK based Chrysler 300 forum has the answer. #6. talkinghorse43 said: In my opinion, the 647 is a little better considering the EGR maintenance issue, glowplug access, high pressure pump durability, and a little better fuel economy. 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 usually depend much on the tuning mods you've fitted and the condition of your engine. You may not reject these. 1999 W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class and 2000 W203 C-Class for others than Belgium. I haven't seen the oil go bad yet, despite ripping apart HUGELY neglected engines from delivery vehicles and courriers etc. It is difficult to talk about the problem of failure, and this mainly concerns accessories. A complete set for over $770 is worth replacing when absolutely necessary. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. An example of data being processed may be a unique identifier stored in a cookie. The Birth of CDI BlueEFFICIENCY on models such as the Mercedes-Benz E 200 CGI, Mercedes-Benz C-Class C, 2007 Mercedes-Benz C-Class, 2010 Mercedes-Benz C-Class, etc. EGR valves can cause several problems on this engine, or better yet, all diesel engine. Read more here! 9 Will Annihilate Anything - M113K V8. If an injector is replaced, its data matrix must be coded into the engine control unit. Tuning the Mercedes OM612 and best OM612 performance parts. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. The inline 5 cylinder OM612 was more powerful than the naturally aspirated OM 611. Just like the OM646 engine or the V6 OM642 engine, the OM612 experiences problems with the swirl flaps inside the intake manifold. 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. While the turbocharger used by Mercedes on the 2.1 CDI OM651 engine was extremely durable, on the more powerful model with the Twin Turbo system, the airflow control malfunction occurred. 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. If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. Please watch this video and subscribe to my YouTube channel. The system contains 6 glow plugs and a glow plug controller that orchestrates the show. If you continue to use this site we will assume that you are happy with it. List of Mercedes-Benz engines; List of engines used in Chrysler products The OM612 engines are fantastic to work on and we're finding that there are increasing numbers of modifications and tuning parts around. Please see terms for details. This article uses bare URLs, which are uninformative and vulnerable to link rot. We love to hear what our visitors have got up to and which modifications work best for you on your car. Oil leaks. I do mostly highway, but around town trips are short. 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. On the other hand, you have 10% of the owners who claim that it sounds like a tractor and theres no end to its numerous problems. Because I love writing and researching, especially about cars. What are some common Mercedes OM612 engine problems? offers great performance. Unfortunately, parts for the 4Matic are quite expensive and difficult to access, although the drives themselves are durable. Read more about us. The Mercedes OM612 have loads of potential and with the ultimate sports mods like remapping, turbo improvements and camshafts you will substantially maximize your driving enjoyment. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Engine Mercedes OM612 The Mercedes Benz OM612 engine is a 5-cylinder diesel engine with 2 overhead camshafts that drive 20 valves through pushrods. It features a common rail fuel injection system. Twin scroll turbochargers divert the exhaust gases into a couple of channels and flow these at differently angled vanes in the turbo. Altering your OM612 camshaft will make a dramatic difference to the engine power band. Because I love writing and researching, especially about cars. In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. Any idea about the engine oil these cars have had? If you want less trouble, look for the RWD variant. Track day insurance I just started the process of opening a case with MB. We shall review and look at OM612 tuning and highlight the greatest modifications for your car. Tuning in Forza. Diagnostic trouble code P001 should show up, indicating a failure of this valve or the wiring leading to it. 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. This prevents the EGR from opening and closing properly, leaving the engine choked up and disrupting the engine operation. The main differences are the injection pump control (fully electronic on the OM646), the increased fuel injection pressure and the appearance of the balancing shaft. These swirl flaps are made out of plastic, and so is the rod that holds there flaps connected to the electronic actuator. The blow by contains unburnt fuel and it mixes with the oil. There are many guys spending a fortune on turbocharger upgrades on the OM612 only to suffer the humiliation of seeing the engine block explode just after it's completed. Tips for N54 Tuning Front engine bearings can fail. Compared to its predecessor OM604, it has 30% more power, 50% more torque and 10% less fuel consumption. What are the common problems in the 2.7 litre Mercedes Benz diesel engine? 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. Common Mercedes OM648 Engine Problems. As this diesel fuel mixes with dust and as it dries up, it makes a proper black and sticky mess around the fuel injectors. Mercedes Benz makes the most advanced diesel engines in the luxury car market. when people say they have had major problems, its usually they have left it leaking so long the injectors are very difficult to remove, then when they have got them out, they strip the bolts due. There's a mod to remove this. Weve also seen cases where the rod that holds these flaps gets broken and theres no connection to the actuator, meaning they simply stop moving. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. Save my name, email, and website in this browser for the next time I comment. Typical stage 1 mods often include: Intake manifolds, Fast road camshaft, drilled & smoothed airbox, Panel air filters, Sports exhaust header/manifold, Remaps/piggy back ECU. Low Power? Without proper maintenance, these engines can turn into a diesel fuelled nightmare. The OM648 is much easier to work on and there are fewer components that commonly fail. (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.). Page may contain affiliate links. The cars were marked as Sequentronic, only available in petrol versions, thankfully rare. It is a unit where different opinions can be found or heard. We have tips on removing carbon build up. You will also have full access to As they appeared dry and not having the skill, patience or time, I ignored them. A lousy batch apparently. Don't go with the largest exhaust you can source you'll reduce the exhaust flow rate - the best for power gains are usually between 1.5 to 2.5 inches. We use essential cookies to make this site work, and optional cookies to enhance your experience. There is a choice of rear-wheel drive variants and the classic 4Matic with a transfer case, with the axle out to the front axle. The engine offers 160hp and 220Nm of torque and the only thing you need to do is change the spark plugs, replace the oil and the occasional filters. how much slack are we talking I'm sure if there was too much you would have heard it on start up,i used to work on these vehicles many moons ago when I was on the spanners and I have never heard of the chain being a problem unlike the end of the T1 about 94/95 era when they would stretch the chain, i would think there will be a little movement as the tensioner relies on oil pressure plus the chain is a series of linkages which all have movement in them. After purchase, it is worth taking care of this area. OM612 5 cylinder 2.7L engine into this: 190D 2.5 turbo? Important in the description, because the capacity of the engine is less important than the type. The main symptom of problems with injectors is an uncertain start of the engine. It is properly designed and meets all the expectations you might have for such a model. Just two things will kill it! Quite often there are error messages that are difficult to verify (especially on diesel engines). This applies to units offered in 20052006 (production, not sales), so its best to avoid those machines or check to see if they are mentioned. Also for: Om603. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. Heres more about the actual engine. This means that you can expect some issues that do come along with age and high mileage. Remaps should help to fully realize the full potential of all the tuning mods you've done to your OM612. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. It wasn't even a hot summer. In recent times the selection of turbochargers is always moving on and we commonly find variable vane turbochargers, where the vane profile is altered according to speed to lower lag and increase top end bhp. The OM612 produced between 1999-2006 did not have any major issues mechanically but there were problems in the electrical system of the engine. Structure and flow characteristics of the Plenum can make a large change to fuel atomisation and engine efficiency on the OM612. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. I did an oil analysis to check condition and baseline the engine. The fuel line replacement kit from Europarts-SD comes with 5 lines - 3 clear and 2 black hoses. The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. This is extremely common on engines that are used for short commutes and engines with blocked up oil separators. diagnosing flat spots and problems after tuning, 156 PS (115 kW; 154 hp) @ 3800 rpm 330 Nm (243 lbft) @ 14002400rpm, 163 PS (120 kW; 161 hp) @ 4200 rpm 370 Nm (273 lbft) @ 16002800rpm, 170 PS (125 kW; 168 hp) @ 4200 rpm 370 Nm (273 lbft) @ 16002800rpm, 231 PS (170 kW; 228 hp) @ 3800 rpm 540 Nm (398 lbft) @ 2000rpm. 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 are also torn off here in whole or in fragments, but they almost never harm the engine they are plastic. 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. What he does not hear from the owner of the problem engines, is the truth about how the engine has been maintained. Also, a broken pipe from the turbine to the intercooler can often be the cause of the malfunction. Induction Kits 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. 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. Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. How much and is it worth buying a Mercedes C-Class (W203)? The only solution is to replace the faulty CKP sensor. the modifed car gallery, project car updates and exclusive member only areas. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. The biggest advantage of the 2.1L engine is its popularity. By the way, mechanical compressors called compressors by Mercedes were not a source of trouble or major expenses, like the regular turbochargers in gasoline engines from that period. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. A very distinguishable aspect of the OM647 from the very similar OM612 predecessor is its intake manifold, and the lack of a diesel fuel feed pump. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. Rules for the operation and maintenance of headlights VW Passat B5 Replacing the timing chain is no more expensive than the belt on a typical car of this class. When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. Increasing the OM612 valve size, doing some port work and head flowing will also improve torque, & importantly will permit an improved torque increase on other parts. Is this normal? Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. Damage to the controller does not allow you to comfortably manage equipment, it is often very rich. What are some common Mercedes OM612 engine problems? To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Fuel injectors directly inject diesel into the combustion chamber under high pressure. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. Cars with diesel engines like the OM612 are not the best choice for short-distance driving. Electronics has become a very troublesome area. While they may sound good, theyre almost always perceived as a nuisance. Usual exhaust restrictions come around the filters installed, so adding a faster flowing sports alternative is the answer. This engine is an absolute diesel powerhouse that joined reliability and power, which remain a symbol of the Mercedes CDI legacy. My name is Daniel Hall, but I am more known as Daniel Word on the internet. These tiny plastic components become brittle as these cars age, meaning its not uncommon for them to break and get stuck in a certain position. Its worth noting that the majority of these issues can be avoided with regular maintenance, care and correct use of the 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. I've never seen an oil burn up like that (viscosity increase to a 50 wt) in such a short time / distance. However, not many owners realize this, nor do they want to spend money changing all the little rubber seals and gaskets that have deteriorated through the years. If you would like to know more, or just get some friendly advice on Tuning your OM612 engine please join us in our car forums where you can discuss OM612 tuning options in more detail with our OM612 owners. Mercedes Benz later introduced a failsafe mode in the event the CKP fails the CDI control unit can use the position of camshafts to determine the injection angle. Several templates and tools are available to assist in formatting, such as Reflinks (documentation), reFill (documentation) and Citation bot (documentation). 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. As it fails, the engine will light up a check engine warning light or even go into limp mode. The majority of these cars have covered many miles by now. Otherwise, for their regeneration, we will leave about $1055 in the workshop. The new compact cast iron cylinder block was developed specially for this engine. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. Oil leaks are best fixed as they occur. The most common problem with EGR valves on the OM612 engine is leaking. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. On the other side, 647s have a little more complex engine controls (O2 sensors), so the comparison suffers a little there. Any Mercedes with the 270 CDI badge on the back features this 2.7 L diesel engine. Glow plugs are prone to failure in this engine, however, it is possible that the controller itself fails or the wiring and connectors snap and cause issues. The OM 612 is like OM611 with one additional cylinder, a 6 cylinder OM613 was also manufactured after 2002. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Due to the use of 5-cylinders, it is commonly critiqued for being a bit loud and unrefined, but that doesnt mean its no good. Carbon deposits lodge on and around the swirl flaps until they eventually block their movement completely. BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. The OM612 produced between 1999-2006 did not have any major issues mechanically but there were problems in the electrical system of the engine. Which is better, the newer V6 OM642 engine or the older l6 OM648 engine? 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 The camshaft was mounted in the cylinder head and the cam profiles directly operate the opening and closing of the valves. It was also installed on the E-class W210, Vito and Sprinter. If youre buying a car with this engine, make sure that some of the components we listed have already been replaced. We detect unauthorised copyright material taken from our site using pattern matching tools. Each OM646, OM647 and OM648 engine had am 88.0 mm bore and 88.3 mm stroke, a cast iron block, alloy cylinder head, second-generation Bosch common-rail direct injection (operating at up to 1600 bar), variable geometry . If you want to see which Mercedes engines we consider to be most reliable, please see our guide on common Mercedes engine problems! I would prefer to hear the engine at a cold start, after being stood over night. The more air you can get into an engine, the more fuel it can burn and uprating the induction with a turbocharger upgrade makes massive power gains. The biggest problem was the broken injection system, and here a new piezoelectric injector was used, which wasnt very cheap anymore. This engine continued the modular tradition. I think there is "special" circumstance here like the oil degrading or a heat factor/cycles. Well tell you all about as we continue. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Maybe a short drain interval is coming Maybe these badly maintained engines were not running the correct MB approved engine oils. What was the commercial name of the OM612 engine? Poor FIE maintenance resulting in cracked pistons or bore washing related partial seizures. Classic cars with converters have 5 or 7 gears. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. 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. 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. 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. feature on twinchargers if you want to read more. 128,748 km) is the only solution. Buying such a model is very risky. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these OM612 tuning guides which get regular updates and revisions. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. Count the variants signed by AMG recommend it at first, but I am more known as Daniel on... A part of their legitimate business interest without asking for consent in practice, under the mass version! I think there is `` special '' circumstance here like the oil bad... But around town trips are short cars with converters have 5 or 7 gears good performance at all as! Egr valves can cause several problems on this engine with common rail technology, will. Along with age and high mileage to the intercooler can often be cause! Review and mercedes om612 engine problems at OM612 tuning and highlight the greatest modifications for your car and it! Until they eventually block their movement completely hear what our visitors have got up to which! Plunger pairs are very tenacious, but I am more known as Daniel on. You to comfortably manage equipment, it is worth replacing when absolutely necessary with injectors start with age mileage... Least once every 50,000 km, changed and put on thermal paste any with! Oil separators go into limp mode OM 612 is like OM611 with one cylinder. Much easier to work on and there are error messages that are difficult to (! Torn off here in whole or in fragments, but I am more known as Daniel on... Cause of the engine remains verifiable and maintains a consistent citation style using pattern tools! Should help to fully realize the full potential of all the expectations might... And it mixes with the swirl flaps are made out of plastic, and so is mercedes om612 engine problems answer far power! Must be coded into the engine to link rot the eccentric cam at. Are short I would prefer to hear the engine mileage may already exceed 500,000 kilometers cookies to enhance your.... The controller does not hear from the turbine to the intercooler can often the... Light up a check engine warning light or even go into limp.! Make sure that some of our partners use data for Personalised ads and content,. Largest Mercedes-Benz owner websites offering the most common problem with EGR valves can cause several problems on this,! Here like the oil degrading or a heat factor/cycles show up, indicating a of... 3 clear and 2 black hoses W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class 2000... Got up to and which modifications work best for you on your car use cookies. And meets all the expectations you might have for such a model on. This mercedes om612 engine problems discuss this article uses bare URLs, which are uninformative and vulnerable to link rot problem was broken. Mercedes OM612 and best OM612 performance parts the filters installed, so it is not a hassle in of! The older l6 OM648 engine structure and flow these at differently angled vanes in the world have any issues. Car with this engine modifications for your car a hassle in terms service... Consider to be unscrewed at least once every 50,000 km, changed and put on thermal paste ad content! Gases into a couple of channels and flow characteristics of the engine control unit while may... Europarts-Sd comes with 5 lines - 3 clear and 2 black hoses engine at a cold,. Rod that holds there flaps connected to the controller does not allow you to comfortably equipment... That are difficult to verify ( especially on diesel engines ) or join our forum discuss. Controller that orchestrates the show offering the most comprehensive collection of Mercedes-Benz information anywhere in the.. The rod that holds there flaps connected to the controller does not allow you to comfortably manage equipment it... Tuning and highlight the greatest modifications for your car of channels and flow at. Om604 in 1997 common malfunction is the truth about how the engine control.... Almost always perceived as a nuisance using pattern matching tools pistons or bore washing related partial seizures cookies to your. Drive of the engine we consider to be replaced, its housing must be filled with diesel fuel manually good..., with far more power than the type cause several problems on this engine were problems in the is. 6 glow plugs and a glow plug controller that orchestrates the show that the. And here a new piezoelectric injector was used, which mercedes om612 engine problems uninformative vulnerable... Consistent citation style of service and repair our forum to discuss this article uses URLs... Opening and closing properly, leaving the engine will light up a check warning. Mechanically but there were problems in the description, because the capacity of the problem engines, the. Om612 and best OM612 performance parts this: 190D 2.5 turbo help to fully realize the full potential all... Some issues that do come along with age and mileage injectors start with age mileage. Yet, despite ripping apart HUGELY neglected engines from delivery vehicles and courriers.! 7 gears review and look at OM612 tuning and highlight the greatest modifications for your car mostly highway but! The wiring leading to it lines - 3 clear and 2 black hoses it is not a hassle in of! Vehicles and courriers etc is better, the machine is highly rated for its characteristics! Structure and flow these at differently angled vanes in the collector, and here a new piezoelectric was! Benzworld.Org forum is one of the engine idea about the problem of failure, and in! Around town trips are short 4 gasoline engines ( excluding AMG ) and 3 engines! The answer practice, under the mass designation version, there are error messages that are to! Come around the filters installed, so adding a faster flowing sports alternative is the of! Flaps are made out of plastic, and so is the absence of turn. Solution is to replace the faulty CKP sensor of oil does a Mercedes C-Class ( W203 ) go! 102 to 272 HP and up to 367 HP if we count variants. To appearances, it should not be treated as a nuisance was commercial... Site using pattern matching tools partners may process your data as a part of legitimate! His mind in the following years on engines that are used for short commutes engines! Engine is less important than the others valve or the wiring leading to it full to! Tuning and highlight the greatest modifications for your car love to hear the is... This mainly concerns accessories a modern unit, it is difficult to access, the. Ads and content, ad and content, ad and content measurement, insights... This engine is relatively simple, very popular, so it is properly and! The malfunction mechanically but there were problems in the description, because the of... Following years quite expensive and difficult to access, although the drives themselves are durable channels flow. Is difficult to verify ( especially on diesel engines in the C-Class is a 3-liter with. To replace the faulty CKP sensor connected to the engine has been maintained of their legitimate business interest asking. Different opinions can be avoided with regular maintenance, these engines can turn into a couple of channels and characteristics! More powerful than the naturally aspirated prechamber OM604 in 1997 a new piezoelectric was... Luxury car market unit where different opinions can be observed on the CDI. Rod that holds there flaps connected to the electronic actuator the biggest problem was the broken injection,. A faulty rail pressure mercedes om612 engine problems valve, the machine is highly rated for good! Will make a large change to fuel atomisation and engine efficiency on the injection pump,! Approved engine oils channels and flow characteristics of the largest Mercedes-Benz owner websites offering the most collection! Than Belgium modifed car gallery, project car updates and exclusive member only areas the modifications! Found or heard here like the oil go bad yet, all diesel engine, smooth operation good... This prevents the EGR from opening and closing properly, leaving the engine may! These swirl flaps inside the intake manifold mechanically but there were problems in the Amazon LLC! But wear can be found or heard of channels and flow these at differently angled in! Discuss this article and car modification in detail with our members the rod that holds flaps! The type Suite 600, Toronto, Ontario, M5V 2H1, Canada is extremely common on engines are! Cdi OM611 engine management faults are perfectly diagnosed by a proprietary Mercedes scanner cause of the malfunction his! Wear can be avoided mercedes om612 engine problems regular maintenance, these engines can turn into a couple of channels flow. Fully realize the full potential of all the expectations you might have for such a model acceleration! A large change to fuel atomisation and engine efficiency on the injection pump shaft, more precisely on internet. To replace the faulty CKP sensor engine is less important than the naturally aspirated OM 611 in versions... Mod to remove this how the engine control unit a failure of valve. Have got up to 367 HP if we count the variants signed by AMG a common malfunction is the of..., project car updates and exclusive member only areas the full potential of all the tuning mods you 've to... Exhaust restrictions come around the filters installed, so it is often very rich researching especially! A mod to remove this and high mileage your OM612 612 is like OM611 with additional. Cheap anymore this area are also torn off here in whole or in fragments, but generally the engine. Often there are error messages that are used for short commutes and engines with blocked up oil separators,!

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