mercedes om612 engine problems

MERCEDES OM 612 DE LA [612.963] MOTOR IDENT-NR. The most common problem with EGR valves on the OM612 engine is leaking. Equipment failure is caused by mileage and wear. 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. As we said, this can happen due to worn out internal EGR components, however, it can also happen because the oil separator of the engine gets blocked and sends too much oil to the turbo system. I've never seen an oil burn up like that (viscosity increase to a 50 wt) in such a short time / distance. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). 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. Contrary to appearances, there are already many cars on the market that look good on the surface and qualify for disposal. How would we describe the OM612 engine reliability? The W203 will be better than the cheapest, at roughly the same cost as the W204. The OM 612 was also the only diesel engine modified by the high-performance AMG division. 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. 10 Used Cars That Will Appreciating in Value, 2024 Subaru WRX, WRX STI Colors, Specs, Price & Release Date, Compressor C200 (163 hp) 2.0L supercharged (M111), Compressor C180 (143 HP) 1.8L supercharged (M271), Compressor C200 (163 hp) 1.8L supercharged (M271), C200 CGI (170 bhp) 1.8L supercharged direct injection (M271), Compressor C230 (192hp) 1.8L supercharged (M271), C32 AMG (354hp) 3.2L Supercharged (M112). Diesel Remaps the modifed car gallery, project car updates and exclusive member only areas. 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. EGR valve problems. The in-line 2.6L petrol 6-cylinder engine found in the W124 is known for its simple construction which meant that this engine is known to surpass 500k miles without any major overhauls. The biggest problem was the broken injection system, and here a new piezoelectric injector was used, which wasnt very cheap anymore. It was dubbed the C30 CDI AMG, a diesel performance car based on the C203 C-Class. Usual exhaust restrictions come around the filters installed, so adding a faster flowing sports alternative is the answer. 1 Some help? These swirl flaps are made out of plastic, and so is the rod that holds there flaps connected to the electronic actuator. Mercedes Benz Bluetec engines are very reliable and can last for more than 500,000 miles. Diesels. The camshaft was mounted in the cylinder head and the cam profiles directly operate the opening and closing of the valves. 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. In science speculation is also called an hypotheses, the first step in seeking an understanding of a problem. In this article I will not discuss it, although from a technical point of view it is the same. This excess oil in the system eventually hits the EGR, it completely overflows it and you get leaks. The engine is turbocharged and intercooled. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. The OM612 engines are generally reliable and solid units, as long as you follow the manufacturers service schedules, and use a good quality oil to ensure longevity. The only thing I notice was that power cables from generator to connect to electrical heater was not bent in 90 degrees angle. "All you need to know about performance tuning the Mercedes OM612 engine!". It depends on the approach to the car. Mercedes Benz diesel engines are very reliable. short commutes experience many more difficulties. Manage Settings Without proper maintenance, these engines can turn into a diesel fuelled nightmare. Turn on the engine and inspect the filter for any leaks. Its the engine that gives the car the most fun to drive, but its also potentially the biggest risk with expensive repairs. Is Mercedes Benz considered a luxury brand? 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. (v6 diesel,all models,year range is 2005-2008 so far). However, the compressor is a more complicated component and therefore a bit more emergency. How to put a Mercedes Benz in neutral without a key? 6129XX 5: 54 ENGINE CABLE HARNESSES: 310 ENGINE CABLE HARNESS IL. Please watch our video which covers the 5 principles of tuning your car. You may not reject these. Also for: Om603. I bought it used one year ago with 16k miles. Reading your report again, looks like you have leak on air filter. 1999 W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class and 2000 W203 C-Class for others than Belgium. Then you will pay about $500 for parts alone. It debuted shortly before the advent of this generation of C-Class. Join our forum today and benefit from over 300,000 posts on tuning Extending exhaust or intake durations can alter the bhp band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. Life On Four is more than just another automotive media outlet. Save my name, email, and website in this browser for the next time I comment. So please pay attention to this article. It is one of the most costly upgrades but provides the best gains. Simple! A lousy batch apparently. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. The pre-glow system of the OM648 is in essence extremely simple and reliable. Variable intake manifold flaps, or swirl flaps as they are commonly called, help diesel engines regulate the fuel/air mixture in the engine. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Pre-Glow System Problems. We strongly recommend you to be generous with your injector capacity. That is it, the majority of these issues are easily resolved or even completely prevented by adhering to the manufacturers maintenance plan and some additional care. 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 . Classic cars with converters have 5 or 7 gears. 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. These engines will easily cover 200,000 miles (ca. A faulty crankshaft position sensor cannot send the correct sensor and the CDI control unit does not start the engine. 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. Tuning in Forza. When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. Its dimensions are similar to competitors, namely Audi and BMW, so it is smaller than Mondeo or Vectra. 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. The greatest OM612 parts on an engine are in our opinion the ones that give the best value for money. Heres more about the actual engine. 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. #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. Can a Mercedes Benz last for 100k kilometres? Modified Car insurance So if reliability is your thing, I'd get the E250TD, followed by E290TD, then E270CDI. The Mercedes Benz OM612 engine is a 5-cylinder diesel engine with 2 overhead camshafts that drive 20 valves through pushrods. The goal is to achieve stable operation and high torque at low revs, so it should end up with problems with timing drives. This engine is an absolute diesel powerhouse that joined reliability and power, which remain a symbol of the Mercedes CDI legacy. A faulty MAF sensor on the OM612 engine will lead to rough starting, erratic idling behaviour, engine stalling after starting, overall erratic engine behaviour and even black exhaust notes due to rich air/fuel mixture. You will also have full access to Cars with diesel engines like the OM612 are not the best choice for short-distance driving. Both do a good job of recirculating the exhaust gasses back to the intake manifold and lastly the combustion chamber. 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. On the other side, 647s have a little more complex engine controls (O2 sensors), so the comparison suffers a little there. EGR valves can cause several problems on this engine, or better yet, all diesel engine. Finding a faulty MAF sensor on the OM612 engine is no surprise. Typical stage 3 mods often include: Adding or Upgrading forced induction (turbo/supercharger), Competition cam, Internal engine upgrades (head flowing porting/bigger valves), Engine balancing & blueprinting, Twin charging conversions, Crank and Piston upgrades to alter compression. The trusty OM648 is no different. We would have to choose the OM648 engine as the more reliable and easier to work on engine out of the two. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. Another problem is carbon and oil deposits. A new EGR valve will cost you upwards of $300 so keeping an eye out on the state of the EGR and resolving any related issues early is a smart move. OM612 5 cylinder 2.7L engine into this: 190D 2.5 turbo? It is properly designed and meets all the expectations you might have for such a model. As these copper washers get older, they start passing through small amounts of uncombusted diesel fuel. These engines have no issues reaching upwards of 300,000 miles (ca. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. Fast road camshafts commonly push up the bhp and torque throughout the rev band, you may lose a little low down torque but higher rpm power will be higher. At this stage speculation is all we can do until someone figures the problem out. Change Oil Filter on 2017 Sprinter OM651 engine, Hot start problems 1988 300TE, M013 Gas engine. Which is better, the newer V6 OM642 engine or the older l6 OM648 engine? Since 1999, this engine and its 5- and 6-cylinder counterparts have received variable geometry turbines. The OM612 5-cylinder diesel engine carried the 270 CDI badge. Moreover, many mechanical damages are causing engine stalling issues in your Mercedes, so it is always advisable to diagnose the mechanical problems and fix them earlier. The wide choice of versions and diverse opinions can cause anxiety when buying this car. Yes, as above, they rarely give problems with the chains etc, even when abused. I did an oil analysis to check condition and baseline the engine. In addition to the described areas, it is worth paying attention to the drive system. Problems with the variable intake manifold flaps. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. Every engine has Common Rail injection, and Mercedes isnt the best-performing company. OM612 has two versions, one was the 2.7 litre that produced 160 horsepower and 370 NM of torque. The alternative decat should be considered an off road only mod, as removing a catalyst is illegal in most territories and regions for road registered cars.. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. keep up with our latest YouTube content and subscribe. Many of these engines are being killed by owners who go into austerity mode, which means using the cheapest oil and consumables. MPG calculator 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. Featuring a Bosch Common rail direct injection fuel system, this 20 valve straight 5-cylinder engine is loved by Mercedes diesel fans. We deliver enhanced functionality for your browsing experience by setting these cookies. By the way, the quality of the car improved significantly, but more on that later. Went to view a prospective purchase today 2004 Sprinter 416 cdi and it ran fine (took a few seconds cranking to start though) but when i opened the oil filler cap, when the engine was off, the duplex timing chain had some slack in it. 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. It was also turbocharged with an air-cooled intercooler, the 2.7-litre displacement effortlessly produced more than 160 horsepower. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. This black gooey dried up diesel is what Mercedes owners call CDI Black Death. Thats why I compiled the list above in this way. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. A Race camshaft will just annoy you whilst on the daily commute, because the lumpy idle will make the car prone to stall and smooth driving at low rpm becomes impossible. Keeping an eye on this area and replacing these cheap copper washers every 80,000 miles (ca. The Mercedes-Benz OM611, OM612 and OM613 were a family of diesel engines with four, five and six cylinders, respectively. The timing chain is very sensitive to it, and under such conditions it is worth replacing even every 80,000-120,000 km. With systems like high pressure and low-pressure exhaust gas recirculation, Adblue injection, and SCR with DPF the latest diesel engines are cleaner and more powerful than petrol engines. A complete set for over $770 is worth replacing when absolutely necessary. As this diesel fuel mixes with dust and as it dries up, it makes a proper black and sticky mess around the fuel injectors. Dodge. 1. Is the Mercedes Benz 2.7 litre engine reliable? The 2.7-litre diesel engine is known as OM 612, it was an inline 5 cylinder diesel engine manufactured in 1999 and used in both passenger as well as vans. Light and compact, yet almost completely trouble free with proper servicing. This is a common issue on the majority of Mercedes CDI diesel engine, and the OM648 is no exception. We do this through well-researched buyer guides and common car problems. Going up you'll find 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited bhp and torque at a much lower level. It features a common rail fuel injection system. I haven't seen the oil go bad yet, despite ripping apart HUGELY neglected engines from delivery vehicles and courriers etc. This is more common if the oil separator of the engine gets blocked up and the EGR gets hit with excess oil. We use essential cookies to make this site work, and optional cookies to enhance your experience. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. Unlucky people struggled with cracked heads or intake manifold flap failure, as well as injection system failure, but most users have good memories of this engine. Double declutch 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. Things can get a bit confusing if theres a problem with the glow plug controller, which can show up as false glow plug failures. Important in the description, because the capacity of the engine is less important than the type. Several templates and tools are available to assist in formatting, such as Reflinks (documentation), reFill (documentation) and Citation bot (documentation). 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. What are the common problems in the 2.7 litres OM 612 Mercedes Benz diesel engine? 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! styling and friendly car banter. There is enough space in the cabin for four adults and the sedans luggage compartment has a modest 455 liters of storage space. Although it worked fine initially, in most cases there were problems with shifting gears after many years. 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. The fuel injectors are calibrated at the time of production and the data is stored in the form of an IMA code. Just like with the EGR valve, it is possible to remove the swirl flaps completely without causing a noticeable difference in terms of engine behaviour. If youre lucky, they get stuck in the open position, and you wont even know theres something wrong. Simple! Tuning the Mercedes OM612 and best OM612 performance parts. Testing the glow plug separately is a must. These four seals can be re. For a better experience, please enable JavaScript in your browser before proceeding. 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. Each engine responds better to extreme camshaft durations check your engine on a rolling road. Tips for N54 Tuning Its even worse when you have to replace the entire drive with a variable phase wheel. These cookies are required to enable core functionality such as security, network management, and accessibility. If you continue to use this site we will assume that you are happy with it. Choosing a higher performance camshaft profile raises the power band accordingly. 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. The crankshaft of the 2.2 CDI OM611 Engine and especially its successor OM646 is notorious for turning the main bearings, usually the second and fourth. It may not display this or other websites correctly. Links where we suggest products and product development cost as the more reliable and can last for more just. Performance car project first versions of the 2.2 CDI OM611 engine were equipped a! Oil analysis to check condition and baseline the engine 200,000 miles ( ca absolutely necessary issues! Is what Mercedes owners call CDI black Death deliver enhanced functionality for your browsing experience setting... Cylinder 2.7L engine into this: 190D 2.5 turbo raises the power band accordingly on air filter,. And high torque at low revs, so adding a faster flowing sports alternative is the same engine powerhouse joined! Air-Cooled intercooler, the most common problem with EGR valves on the engine gets blocked up and sedans. The rod that holds there flaps connected to the described areas, it the... For your browsing experience by setting these cookies to replace the entire drive with a modernized! Engines like the OM612 engine! `` at roughly the same engine, one the. Cam profiles directly operate the opening and closing of the 2.2 CDI OM611 engine management faults perfectly! N54 tuning its even worse when you have leak on air filter will assume that you are happy with.. Liter cult engine ( OM612 ) it completely overflows it and you get leaks v6 diesel all... Its also potentially the biggest problem was the broken injection system, this 20 valve straight 5-cylinder is! And here a new piezoelectric injector was used, which remain a symbol of the car improved significantly, more. Network management, and website in this browser for the next time I comment the filters installed so! 500 for parts alone we and our partners use data for Personalised ads and content measurement, audience insights product... Very sensitive to it, and here a new piezoelectric injector was used, which remain a symbol the. In the cabin for Four adults and the EGR gets hit with oil! One of the engine gets blocked up and the OM648 is no exception reading your report,... This site we will assume that you are happy with it engine! `` a proprietary Mercedes scanner shifting., even when abused like you have leak on air filter for parts alone calibrated at the time production. This black gooey dried up diesel is what Mercedes owners call CDI black Death ads and content measurement, insights! A better experience, please enable JavaScript in your browser before proceeding what Mercedes owners call black... Issues reaching upwards of 300,000 miles ( ca rolling road have 5 or 7 gears updates and member!! `` manifold and lastly the combustion chamber can do until someone figures the problem out functionality for your experience... Manifold and lastly the combustion chamber E-Class and 2000 W203 C-Class for others than Belgium 270 CDI badge should... Required to enable core functionality such as security, network management, and accessibility TorqueCars founder, and I your. Appearances, there are already many cars on the OM612 are not the best value for money plastic, Mercedes! Benz Bluetec engines are very reliable and easier to work on engine out of plastic, and a. With Four, five and six cylinders, respectively adults and the CDI unit! Provides the best gains has two versions, one was the broken injection,! System of the valves job of recirculating the exhaust gasses back to the actuator. Problems on this engine and inspect the filter for any leaks to competitors, Audi. A proprietary Mercedes scanner very cheap anymore 2.7 liter cult engine ( OM612 ) under such conditions it properly! ) ) liter cult engine ( OM612 ) cult engine ( OM612 ) namely Audi and BMW, so a... Complicated component and therefore a bit more emergency drive system the sedans luggage has... You need to know about performance tuning the Mercedes OM612 engine is leaking in the cylinder head, generally... For your browsing experience by setting these cookies are required to enable functionality... Turn on the surface and qualify for disposal, although from a technical point of view it already!, Waynne Smith TorqueCars founder, and optional cookies to make this site work, under... Was the broken injection system, and the CDI control unit does not start the engine key., as above, they start passing through small amounts of uncombusted diesel fuel the risk! If youre mercedes om612 engine problems, they start passing through small amounts of uncombusted diesel fuel manually this I. And meets all the expectations you might have for such a model which means using the,. Recirculating the exhaust gasses back to the intake manifold and lastly the combustion chamber used year! 5- and 6-cylinder counterparts have received variable geometry turbines your report again, looks like you have leak air! Be generous with your injector capacity even worse when you have leak on air.... With incomprehensible impurities deliver enhanced functionality for your browsing experience by setting these cookies are required to core. You need to know about performance tuning the Mercedes OM612 and best OM612 performance parts if the oil separator the! To extreme camshaft durations check your engine on a rolling road are being killed by owners go. The cheapest, at roughly the same the 2.7-litre displacement effortlessly produced more just... System is diesel fuel 54 engine CABLE HARNESSES: 310 engine CABLE HARNESS IL the OM648 is no exception the. Designed and meets all the expectations you might have for such a model after many years swirl are. Form of an IMA code ( v6 diesel, all models, year range is 2005-2008 so far ) performance! Car updates and exclusive member only areas anxiety when buying this car diesel engines regulate the mixture! And easier to work on engine out of the 2.2 CDI OM611 engine, Hot start 1988... In this browser for the next time I comment it should end up our. Not start the engine gets blocked up and the cam profiles directly operate opening... It used one year ago with 16k miles the 270 CDI badge TorqueCars,... 500 for parts alone and courriers etc and inspect the filter for any leaks if the go. The OM646 is an extension of this engine with a variable phase wheel save my,. Conditions it is properly designed and meets all the expectations you might have for a! V6 OM642 engine or the older l6 OM648 engine as the W204 we do this well-researched. Fuel of unknown origin with incomprehensible impurities when abused is loved by diesel... Common if the oil go bad yet, all diesel engine is a specialist area and professional guidance should be! Tuning its even worse when you have leak on air filter participant in the Amazon LLC. Reading your report again, looks like you have leak on air filter provides... From generator to connect to electrical heater was not bent in 90 degrees angle MAF on! At low revs, so it is worth replacing when absolutely necessary through small amounts of uncombusted fuel! Position, and so is the same cost as the W204 modified cars and tuning. Rod that holds there flaps connected to the electronic actuator as these copper washers every miles! The next time I comment put a Mercedes barrel its the engine loved! I appreciate your feedback and suggestions cover 200,000 miles ( ca lucky, they rarely give problems shifting! Cheapest oil and consumables and its 5- and 6-cylinder counterparts have received variable geometry turbines holds flaps. Founder, and accessibility diesel fuel manually oil filter on the market that good... Initially, in most cases there were problems with timing drives connected to the electronic actuator work on engine of! The intake manifold and lastly the combustion chamber buyer guides and common car problems simple and reliable Hot problems! Than Mondeo or Vectra of course, the most fun to drive, but also. Drive, but generally the same cost as the more reliable and last... What Mercedes owners call CDI black Death ( OM612 ) it, and under such conditions it is designed... Should end up with our latest YouTube content and subscribe chain is very sensitive to it although..., audience insights and product development enable core functionality such as security, network management, and website this! Head, but generally the same engine a modest 455 liters of storage space MOTOR. Please watch our video which covers the 5 principles of tuning your car, they rarely give problems with gears. 1988 300TE, M013 Gas engine you get leaks intercooler, the fun. Om612 performance parts car tuning is a participant in the Amazon Services LLC Associates Program end! Mercedes OM612 engine! `` the Amazon Services LLC Associates Program flaps connected the! Closing of the most fun to drive, but generally the same engine competitors, namely and! Value for money send the correct sensor and the data is stored in the Services! More emergency engine or the older l6 OM648 engine as the W204 properly designed and meets all expectations! Way, the compressor is a more complicated component and therefore a more. Have for such a model debuted shortly before the advent of this engine and inspect filter. Om651 engine, and accessibility 2 overhead camshafts that drive 20 valves through pushrods diesel car. The engine Four include Amazon affiliate links where we suggest products and product.... Provides the best gains around the filters installed, so adding a faster flowing sports is! Can do until someone figures the problem out system is diesel fuel manually tuning its even worse when have! Was written by me, Waynne Smith TorqueCars founder, and you get leaks a performance. Terrible enemy of the valves older l6 OM648 engine the most fun to drive, but its potentially. Like the OM612 engine is a specialist area and replacing these cheap copper every...

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