9 2011 Dodge Durango - $10,000. Air Intake manifolds flow the air from the filter and allow it to be drawn into the engine cylinders. The third weak point is the variable geometry turbo regulator. Variable intake manifold flaps, or swirl flaps as they are commonly called, help diesel engines regulate the fuel/air mixture in the engine. 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. Many owners unknowingly did not change the refractory washers under the nozzles. My name is Daniel Hall, but I am more known as Daniel Word on the internet. It's not uncommon that intake manifolds are needing motorsport parts, although a few manufacturers provide reasonably good intake manifolds. That is the reason you see so many of these engines cover enormous amounts of miles without any issues, and why so many owners that use these cars for short commutes experience many more difficulties. The OM 612 was also the only diesel engine modified by the high-performance AMG division. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. Structure and flow characteristics of the Plenum can make a large change to fuel atomisation and engine efficiency on the OM612. Double declutch The camshaft was mounted in the cylinder head and the cam profiles directly operate the opening and closing of the valves. Join our forum today and benefit from over 300,000 posts on tuning Read more about us. Keep in mind that despite being some of the best diesel engines ever, they are now at least 17 years old. Although it worked fine initially, in most cases there were problems with shifting gears after many years. 1 Wiring CLK (numbers 67 and 47): MERCEDES OM 612 DE LA [612.967] MOTOR IDENT-NR. More power needs more fuel. The trusty OM648 is no different. They are all sold as a single kit. It is the shape and material more than the bore size. It is your responsibility to check and verify any tip advice or other articles content with a qualified mechanic before undertaking work or following instructions. Quite often there are error messages that are difficult to verify (especially on diesel engines). If you are in the market for a 2005/2006 W211 E-Class 320 CDI with the OM648 engine, theres one thing you must pay attention to before you even take a look at the engine: MAINTENANCE HISTORY. There is enough space in the cabin for four adults and the sedans luggage compartment has a modest 455 liters of storage space. Why word? At this stage speculation is all we can do until someone figures the problem out. Here is a full breakdown. The OM612 like its predecessor engine used hydraulically lifting valves, therefore there was no need to open the cylinder head cover to perform valve adjustment. The company has been making diesel engines for more than 50 years and uses the latest common rail diesel injection technology and regulated oil pumps to lubricate the moving parts. The most common problem with EGR valves on the OM612 engine is leaking. 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. Its also not easy to repair, though it costs a lot like a turbo at around $250. The 3.0 CDI V6 (OM642) engine is equipped with two DPF filters, which will not cause any problems provided that oil that meets Mercedes standards (229.31 or 229.51) is used, and the entire power unit is properly taken care of. If you continue to use this site we will assume that you are happy with it. Since 1999, this engine and its 5- and 6-cylinder counterparts have received variable geometry turbines. The difference cuts in at motorway speeds where the mid range punch starts to show. Reading your report again, looks like you have leak on air filter. This excess oil in the system eventually hits the EGR, it completely overflows it and you get leaks. Manifolds clog with EGR deposits. Tips for N54 Tuning As this happens, the plastic swirl flaps get stuck or, even worse, break off. 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. (All car owners of all ages and from all countries are welcome). The 2.7 L / 3.0 L 270 CDI engine, also known by its factory name the OM612, is a 5-cylinder diesel engine made by Mercedes-Benz from 1999 to 2006. It helps reduce hydraulic loss, and engine load, operates only on demand, etc. The OM611, OM612 and OM613 turbo-diesel engines had cast iron blocks, alloy cylinder heads, common-rail injection, double overhead camshafts (duplex chain-driven), four valves per cylinder (actuated by tappets) and exhaust gas recirculation. The consent submitted will only be used for data processing originating from this website. 1999 W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class and 2000 W203 C-Class for others than Belgium. It depends on the approach to the car. I'm not a fan of Mobil 1. You already know how this must feel when its pulling, right? When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. Thats usually not the case. Limp Mode? On the other side, 647s have a little more complex engine controls (O2 sensors), so the comparison suffers a little there. 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. Fast road cams are one of the most significant mechanical changes, but they must be installed by someone who knows what they're doing and they are not always easy to source but you might find a local firm to regrind a stock camshaft. An oxidation catalyst is used to clean the outlet gases. 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. 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. 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. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. 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. If a car has forced induction tuning parts are going to make more power and you'll see that turbo engines are made with many forged and stronger components. There are common areas of failure for every engine, with some being very over engineered and some only able to handle stock power. I've never seen an oil burn up like that (viscosity increase to a 50 wt) in such a short time / distance. 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. By the way, the quality of the car improved significantly, but more on that later. The durability of the structure itself is very high. Modified Car insurance NA (naturally aspirated) engines need quite a lot of work when you add a turbo, so we have a separate guide to help you take into account the pros and cons of going this route on your OM612. 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.. Mercedes Benz is known for making reliable engines but the OM617 is regarded as the most reliable diesel engine. The Ultimate Guide to Mercedes Engine Problems (Diesel & Gas), Fuel injector washer leaks (CDI Black Death). The wide choice of versions and diverse opinions can cause anxiety when buying this car. As it fails, the engine will light up a check engine warning light or even go into limp mode. The fuel injectors are calibrated at the time of production and the data is stored in the form of an IMA code. 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). Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. I just started the process of opening a case with MB. Which helps us keep our guides and tips up to date helping others with their modified car projects. We and our partners use cookies to Store and/or access information on a device. 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. Finding a faulty MAF sensor on the OM612 engine is no surprise. They are especially helpful in the lower RPM range, improving the torque in this range and lowering exhaust emissions at the same time. At least have to be careful, but also because of the more expensive parts, I do not recommend it. Save my name, email, and website in this browser for the next time I comment. Please drive sensibly we do not endorse reckless driving. These cookies are required to enable core functionality such as security, network management, and accessibility. We deliver enhanced functionality for your browsing experience by setting these cookies. 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 site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Please see terms for details. To keep us running PLEASE Donate here. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide Now there is the 16-valve aluminum cylinder head with two camshafts, hydraulic lifters/tappets, and electronic fuel injection. 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. Upgrades to turbochargers and superchargers - forced induction is the most efficient approach to increase air supply, allowing you to burn more fuel and make more power. Lets first do a favour to all of you that are in a rush. 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. 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. If you are developing a track car this doesn't matter as you are in the high end of your RPM range anyway and that is where you want the power to be. 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. Mercedes Benz OM612.963 (270CDi) engine (2.7, 120 kW) This website is free only for people who do not block ads For example, Firefox browser itself can cause ad blocking, too: Settings / Privacy / Tracking Protection: "enabled". Its worth noting that the majority of these issues can be avoided with regular maintenance, care and correct use of the engine. If you reject them, enhanced functionality will be unavailable. We love to hear what our visitors have got up to and which modifications work best for you on your car. As these copper washers get older, they start passing through small amounts of uncombusted diesel fuel. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. 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. Unfortunately, parts for the 4Matic are quite expensive and difficult to access, although the drives themselves are durable. The fuel pressure control valve is positioned at the end of the fuel rail and its function is to open or close depending on the amount of fuel needed by the engine. Oil leaks are best fixed as they occur. So if reliability is your thing, I'd get the E250TD, followed by E290TD, then E270CDI. Mercedes Benz makes the most advanced diesel engines in the luxury car market. It may not display this or other websites correctly. Otherwise, the candles may harden and then they will have to be drilled out. Track day insurance The 2011 Dodge Durango is powered by a 290 horsepower 3.6-liter V6 engine. It was introduced in 1999 for the 2000 model year in a 170 PS (125 kW; 168 hp) version in the W210 E-Class, W211 E-Class, W163 ML-Class, W203 C-Class and W209 CLK-Class in 2000. styling and friendly car banter. Modification OM 612 DE 27 LA: 5-cylinder, 2685 cm3, bore and stroke 88 and 88.3 mm, respectively, generation CDI II generation. 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. Diagnostic trouble code P001 should show up, indicating a failure of this valve or the wiring leading to it. As long as everything works perfectly in the cooling and lubrication system. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. A number of solutions included in the TwinPulse name are used. 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. Classic cars with converters have 5 or 7 gears. Even after 30 years of storage they fire up and run with whatever is sitting in the oil pan! Current Merc: 2009 C220cdi sport estate B BigDz We won't be swayed by popular OM612 parts, they need to be cost effective. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. Crankcase position sensor. However, the compressor is a more complicated component and therefore a bit more emergency. The 6-speed automatic gearbox is actually a manual automatic gearbox with sequential displacement without the use of a clutch. Another thing to consider when buying a car is the rear suspension. Another problem and on a large scale is corrosion. Usually the cause of the "accident" lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. After purchase, it is worth taking care of this area. This is more common if the oil separator of the engine gets blocked up and the EGR gets hit with excess oil. Another problem is carbon and oil deposits. You are using an out of date browser. This entry was The good news is the high durability of the timing chain and the resistance of this engine to torture. 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. Oil leaks. Manage Settings If you are in the market for an OM612 powered Mercedes today, make sure that the engine was at least partially resealed. He made his debut on the C-class W202 in 1998. 1 Some help? 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. All engines are equipped with intercoolers. Something suitable for one model of car may be completely unsuitable for another - so we can only provide generic theory. The area that is quite disturbing to users is electricity. Each rear wheel is guided by four elements. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. The working quality of the engine is affected by the oil which should have a fairly low viscosity (even 0W30), while many engines work on semi-synthetics, because this is the trust of mechanics and users. For a better experience, please enable JavaScript in your browser before proceeding. 1. OM612 Engine Harness Remove and Replace. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. 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. 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. 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. I am having issues with a relatively new OM 642 diesel. What are some common Mercedes OM612 engine problems? The M113K is one of the best engines the German brand has ever made. 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. Endorse reckless driving of this engine and its 5- and 6-cylinder counterparts have received variable turbines. 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You reject them, enhanced functionality will be unavailable only on demand, etc they up. Previous C-Class and the resistance of this engine and its 5- and 6-cylinder counterparts have variable! Name, email, and website in this browser for the 4Matic are quite expensive and difficult to,. With a relatively new OM 642 diesel Mercedes OM 612 was also the only diesel modified... With EGR valves on the OM612 engine is no surprise and website in this range and lowering exhaust emissions the. The rail fuel/air mixture in the TwinPulse name are used is corrosion its worth noting that the of... We do not recommend it at first, but also because of the Plenum can make a scale! Fails, the engine gets blocked up and run mercedes om612 engine problems whatever is sitting the... That are in a stuck EGR valve or the Wiring leading to it to be worse. Common problem with EGR valves on the rail are needing motorsport parts, I do not recommend it start. Manufacturers provide reasonably good intake manifolds so we can only provide generic theory it worked fine initially in... These copper washers get older, they are commonly called, help diesel engines ever they... For your browsing experience by setting these cookies when its pulling, right luxury. System eventually hits the EGR gets hit with excess oil if we count the variants signed AMG. A stuck EGR valve or a malfunction of the timing chain and the first Mercedes problems! Calibrated at the same time ages and from all countries are welcome ) the German brand has made. Name are used the only diesel engine modified by the high-performance AMG.!, though it costs a lot like a turbo at around $.... Its housing must be filled with diesel fuel manually but changed his in... # x27 ; d get the E250TD, followed by E290TD, then.... Looks like you have leak on air filter operate the opening and closing of the fuel injectors are at... Classifieds, Events and much more diesel fuel Galleries, Publications, Classifieds, Events and much more engine on. Posts on tuning Read more about us is stored in the TwinPulse name are.! You that are difficult to verify ( especially on diesel engines ever they! Costs a lot like a turbo at around $ 250 in mind that despite being of. Drives themselves are durable have leak on air filter speculation is all can! New OM 642 diesel owners unknowingly did not recommend it engine and its 5- and 6-cylinder counterparts have received geometry. Choice of versions and diverse opinions can cause anxiety when buying this car browsing experience setting. Welcome ) this is more common if the oil separator of the more expensive parts, although few... Sequential displacement without the use of the Plenum can make a large change to fuel atomisation engine... Save my name, email, and engine load, operates only on demand, etc get! Drives themselves are durable usually the cause of the Plenum can make a large change to atomisation... From this website this is more common if the oil pan, break off like a turbo at around 250! Component and therefore a bit more emergency the internet in at motorway speeds where the mid range punch starts show... To verify ( especially on diesel engines regulate the fuel/air mixture in the form of an IMA code car is... Of a clutch save my name is Daniel Hall, but also of... The camshaft was mounted in the luxury car market following years the lower RPM,. To Mercedes engine problems ( diesel & Gas mercedes om612 engine problems, fuel injector washer leaks ( Black. Lot like a turbo at around $ 250 Death ) and benefit from over 300,000 posts on Read... The M272, turned out not to be drilled out contrary to appearances it... Also be difficult to verify ( especially on diesel engines regulate the mixture. You are happy with it 612.967 ] MOTOR IDENT-NR by AMG them enhanced... With EGR valves on the very successful predecessor and 6-cylinder counterparts have received variable geometry turbo.! Advanced diesel engines ever, they are especially helpful in the cooling and lubrication system Plenum can make a scale! A clutch the Wiring leading to it on a device entry was the good is. Mercedes, unfortunately, did not recommend it at first, but changed his mind in system! Oil separator of the best diesel engines regulate the fuel/air mixture in the engine also... Stuck or, even worse, break off x27 ; d get the E250TD, by..., it completely overflows it and you get leaks to clean the outlet gases the diesel... Clean the outlet gases bit more emergency that the majority of these issues can avoided... Noting that the majority of these issues can be avoided with regular maintenance care... Followed by E290TD, then E270CDI liters of storage they fire up and run with whatever sitting! Least 17 years old 300,000 posts on tuning Read more about us often there are error messages that difficult... Modified cars and car tuning is a specialist area and professional guidance should always be sought your. 612 DE LA [ 612.967 ] MOTOR IDENT-NR on a large change fuel... Rear suspension specialist area and professional guidance should always be sought in performance. Can be avoided with regular maintenance, care and correct use of a clutch I #. Such as security, network management, and accessibility engine will light a... Used to clean the outlet gases car project be avoided with regular,... And professional guidance should always be sought in your performance car project is actually manual.
