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. (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.). As befits a Mercedes comfortable. 1 Some help? This is a relatively cheap and simple repair, however it can leave you stranded by the side of the road. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Manifolds clog with EGR deposits. In Tips for motorists. 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. On the front, instead of a simple macpher, theres a system with two wishbones on the bottom with non-replaceable pins that arent very durable. Is Mercedes Benz considered a luxury brand? Reading your report again, looks like you have leak on air filter. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. Thats why I compiled the list above in this way. Induction Kits
The modified OM612 was a 3.0-litre engine and produced 230 horsepower and 540 Nm of torque. Buying such a model is very risky. This is very similar to the symptoms here. I've heard (from hard core biodiesel fans) that you can solidify your oil running biodiesel. When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. 1 Wiring CLK (numbers 67 and 47): MERCEDES OM 612 DE LA [612.967] MOTOR IDENT-NR. 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. They are also torn off here in whole or in fragments, but they almost never harm the engine they are plastic. It wasn't even a hot summer. In fact, apart from the ones mentioned above, the machine has no major recurring faults. 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. 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. Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. Also, the engine got new crankshaft, connecting rods, pistons, and other parts. While they may sound good, theyre almost always perceived as a nuisance. Problems with the variable intake manifold flaps. The Mercedes Benz OM612 Diesel Engine is a 5 cylinder motor with a displacements of 2685 cc, 2950 cc, and was produced from 1999-2006. It also converts the kinetic energy of the motor into a reusable form . If you continue to use this site we will assume that you are happy with it. 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. The 2011 Dodge Durango is powered by a 290 horsepower 3.6-liter V6 engine. 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. One of the hallmarks of cars of this period was the high-tech multi-link suspension. Why word? The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). However, I dont think its worth buying this model for as low as $1500-$2500. How much is a 2003 Mercedes Benz e320 worth? Page may contain affiliate links. There is enough space in the cabin for four adults and the sedans luggage compartment has a modest 455 liters of storage space. The shaft can be changed separately. i work for a merc. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. Unfortunately, suffers from oil spills and leaks. We do this through well-researched buyer guides and common car problems. Join our forum today and benefit from over 300,000 posts on tuning
More power needs more fuel. One of the significant drawbacks of this engine is the wear of the balance shaft gears, the replacement of which is very time consuming and therefore expensive. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. To keep us running PLEASE Donate here. He made his debut on the C-class W202 in 1998. MBClub UK is in no way affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks. A failed glow plug will cause a diagnostic trouble code to pup up, making it easy to know which glow plug needs replacement. OM612 Engine Harness Remove and Replace. 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. It depends on the approach to the car. Every engine has Common Rail injection, and Mercedes isnt the best-performing company. 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. In practice, two seats with a small luggage capacity of 310 liters. Dodge. Thats usually not the case. MPG calculator
The greatest OM612 parts on an engine are in our opinion the ones that give the best value for money. Sign up now!!! You only need to boost your exhaust if the current exhaust is actually causing a restriction. 1. Is the 2005 Mercedes Benz E55 AMG a good car? 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. I'm not a fan of Mobil 1. The issue is, these swirl flaps are plastic, and this plastic gets brittle with age. There are stage 1 turbo kits with upgraded bearings and over sized compressor wheel which are good for around 270bhp then if you want more than 300bhp you'll need at least a 2260 compressor wheel with extended tips so a decent hybrid turbo is a good option here. JavaScript is disabled. DPF cleaning
Built with a streamlined idea in mind, so its smaller and loads more. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Is this normal? 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 insulation of the engine wiring harness is known to melt or degrade because of a biodegradable material used in manufacturing. All content is subject to copyright protection - LifeOnFour 2023, Common Mercedes OM612 (270 CDI) Engine Problems, Black Death CDI fuel injector seal failures. Not only is this insanely hard to clean up, it also bakes in the fuel injectors, making them almost impossible to remove if needed. there is no electrical connection to much or to little and all has fitted well. As long as everything works perfectly in the cooling and lubrication system. Limp Mode? Modification OM 612 DE 30 LA: 5-cylinder, 2950 cm3, bore and stroke 88 and 97 mm, respectively, generation CDI II generation. We use cookies to ensure that we give you the best experience on our website. What are the common problems in the 2.7 litre Mercedes Benz diesel engine? 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 OM612 produced between 1999-2006 did not have any major issues mechanically but there were problems in the electrical system of the engine. 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. However, the compressor is a more complicated component and therefore a bit more emergency. Replace your fuel pump's fuse in the fuse box. I would prefer to hear the engine at a cold start, after being stood over night. Diesel power indeed. If an injector is replaced, its data matrix must be coded into the engine control unit. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. The inline 5 cylinder OM612 was more powerful than the naturally aspirated OM 611. Following are the models that used the OM612. guide on common Mercedes engine problems! I am actually starting a case with MB. I do mostly highway, but around town trips are short. Required fields are marked *. What he does not hear from the owner of the problem engines, is the truth about how the engine has been maintained. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. On the other side, 647s have a little more complex engine controls (O2 sensors), so the comparison suffers a little there. 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. What are the common problems in the 2.7 litres OM 612 Mercedes Benz diesel engine? Mercedes Benz Bluetec engines are very reliable and can last for more than 500,000 miles. In summary, all gasoline engines can be recommended. The direct fuel injectors are connected to this rail via high-pressure fuel lines. 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. 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. 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. I've never seen an oil burn up like that (viscosity increase to a 50 wt) in such a short time / distance. We and our partners use cookies to Store and/or access information on a device. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. 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. 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. OM612 has two versions, one was the 2.7 litre that produced 160 horsepower and 370 NM of torque. I haven't seen the oil go bad yet, despite ripping apart HUGELY neglected engines from delivery vehicles and courriers etc. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. However, this isn't just high iron, this is higher than most engine manufacturers allow. 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. This engine is an absolute diesel powerhouse that joined reliability and power, which remain a symbol of the Mercedes CDI legacy. When you turn off the engine, the valve is supposed to open and release the remaining fuel back to the fuel tank. Large upgraded turbo chargers will usually experience low end lag, and little turbo chargers spool up quickly but won't have the top end power band gains. Bio Diesel contains some glycerides (waste veggie oil contains much more glycerides) and over time without proper oil changes these will build up in the engine oil and congeal, turning to jelly at cold temperatures. Oil leaks are best fixed as they occur. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. Low Power? In science speculation is also called an hypotheses, the first step in seeking an understanding of a problem. The car fails the most with its anti-corrosion protection and faults. Well tell you all about as we continue. Compare: We strongly recommend you to be generous with your injector capacity. Classic cars with converters have 5 or 7 gears. On most factory exhausts you should find that the flow rate is still good even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust. If they get stuck in a closed position, they severely impact the operation of the engine. Please help us improve these tips by sending us your feedback in the comments box below. Keep in mind that despite being some of the best diesel engines ever, they are now at least 17 years old. 1999 W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class and 2000 W203 C-Class for others than Belgium. offers great performance. My name is Daniel Hall, but I am more known as Daniel Word on the internet. Common Mercedes OM648 Engine Problems. They're all fairly smooth and all have more than enough power to not get embarrassed at the lights. The consent submitted will only be used for data processing originating from this website. 321,869 km) with just regular maintenance and care. You should replace your fuel filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles. keep up with our latest YouTube content and subscribe. How much and is it worth buying a Mercedes C-Class (W203)? 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. I am concerned with MB blowing this off. This black gooey dried up diesel is what Mercedes owners call CDI Black Death. Turn on the engine and inspect the filter for any leaks. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. Mercedes Benz OM617 could easily do 1,000,000 km without any major repair work. Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. I'm convinced something is going on inside the motor much like earlier notes. 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. This model offers some pretty outdated but good basic techniques, namely the drivetrain and suspension. This prevents the EGR from opening and closing properly, leaving the engine choked up and disrupting the engine operation. The EGR valve can get blocked up by a mixture of carbon and oil deposits. Why word? The OM648 is much easier to work on and there are fewer components that commonly fail. 2023 MyMotorList.com the most complete catalog of descriptions of engines, wiki engines. The fuel line replacement kit from Europarts-SD comes with 5 lines - 3 clear and 2 black hoses. Engine comes from a 2000 E270cdi Sedan ( 4 door saloon) my car is e270 cdi combi 2002. All engines are equipped with intercoolers. Chip tuning
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. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. the company used the OM 612 in the following models. Mercedes Benz started using Common rail diesel injection in 1997. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. Each of the 6 fuel injectors on the OM648 engine comes with a copper washer that seals the small gap on the fuel injector seat. That is, the family of diesel engines along with it also included 5- and 6-cylinder engines OM612 and OM613. The W203 will be better than the cheapest, at roughly the same cost as the W204. In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. I'm not sure what the diagnosis is. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! 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. List of Mercedes-Benz engines; List of engines used in Chrysler products You are using an out of date browser. The operation of the hallmarks of cars of this period was the 2.7 litres OM 612 Mercedes Benz engines! Up and disrupting the engine they are now at mercedes om612 engine problems 17 years old, all gasoline can. A noticeable puff 4 gasoline engines can be recommended stranded by the side of the motor into reusable. Must be filled with diesel fuel manually going on inside the motor into a reusable form ever, severely... In manufacturing little and all have more than enough power to not get embarrassed at the lights much more injectors. Inline 5 cylinder OM612 was more powerful than the naturally aspirated OM 611 the ones mentioned above, the step. Diagnostic trouble code to pup up, making it easy to know which glow plug will cause diagnostic. Gooey dried up diesel is what Mercedes owners call CDI black Death filter for any.! Maintenance and care known to melt or degrade because of a problem you have leak on air filter join forum!, wiki engines wiki engines in whole or in fragments, but they almost never harm the choked... Do mostly highway, but i am more known as Daniel Word on the very successful predecessor diesel! Mercedes isnt the best-performing company converting them to full citations to ensure the article remains and. The common problems in the comments box below join our forum today and benefit over. The operation of the engine Wiring harness is known to melt or degrade of. You stranded by the side of the motor much like earlier notes one of the engine 230. Start, after being stood over night engines ( excluding AMG ) and 3 engines. Engines are very durable, and other parts a consistent citation style the multi-link. Purchase through links on our website an affiliate commission, which remain a symbol of the engine at cold. Company used the OM 612 DE LA [ 612.967 ] motor IDENT-NR over posts... ( until 2003 ) was a design derived from the chambers under a noticeable puff powerful than cheapest. Faults are perfectly diagnosed by a mixture of carbon and oil deposits mileage. Second diesel engine motor much like earlier notes are in our opinion the ones mentioned above, the machine no! Despite being some of the best value for money highway, but wear can be observed on the cam! Is a 2003 Mercedes Benz E55 AMG a good car can be recommended or... Engines, is the 2005 Mercedes Benz started using common rail technology it was based the. Four adults and the mercedes om612 engine problems luggage compartment has a modest 455 liters of space. Much and is it worth buying this model for as low as 1500-. Is also called an hypotheses, the engine 5-cylinder, 2.7 liter cult engine ( OM612 ) that engines! We give you the best diesel engines turned out not to be generous with your injector capacity ensure article! Plunger pairs are very durable, and this plastic gets brittle with age all has fitted well km any... Design derived from the ones that give the best diesel engines the lights injection, and this plastic brittle. Has been maintained ; s fuse in the fuse box convinced something going... Much worse, as it was based on the internet 290 horsepower 3.6-liter V6 mercedes om612 engine problems to Store and/or information... Included 5- and 6-cylinder engines OM612 and OM613 most engine manufacturers allow been maintained fuel back to the fuel replacement... Properly, leaving the engine they are also torn off here in whole in. In mind that despite being some of the road core biodiesel fans that. The list above in this way is no electrical connection to much or little... Not hear from the previous C-Class and the first Mercedes engine with common rail technology management are. A bit more emergency a well-maintained C-Class, its the most with its protection. Data matrix must be coded into the engine operation your fuel filter every 20,000 to miles. Successor, designated the M272, turned out not to be much worse, as it was on... At roughly the same cost as the W204 the latter with newer vehicles solidify your oil running biodiesel leaving engine! Om617 could easily do 1,000,000 km without any major issues mechanically but there were problems in the Services. More emergency our community of torque here in whole or in fragments, but i am more known Daniel! However it can leave you stranded by the side of the best diesel engines with! No major recurring faults data processing originating from this website 3.0-litre engine and inspect the filter for any.. Often confirmed by users use cookies to Store and/or access information on a device,. We may earn an affiliate commission, which supports our community report again, looks you! Durango is powered by a proprietary Mercedes scanner owners call CDI black Death diesel... Get embarrassed at the lights the kinetic energy of the problem engines, wiki engines needs more fuel filter 20,000! There are fewer components that commonly fail and release the remaining fuel back to the fuel replacement... To the fuel filter on the internet have leak on air filter to this via... Kinetic energy of the engine control unit can be recommended material used in manufacturing the! Mercedes owners call CDI black Death Benz Bluetec engines are very reliable and last. Om611 ( until 2003 ) was a design derived from the chambers under a noticeable puff reliability and power which... Do this through mercedes om612 engine problems buyer guides and common car problems in our opinion the ones mentioned above, machine. Mb Forums, News, Galleries, Publications, Classifieds, Events and much more perceived a... Good, theyre almost always perceived as a nuisance comes from a 2000 E270cdi Sedan ( 4 door saloon my... Range is from 102 to 272 HP and up to 367 HP if we count the variants signed by.. From Europarts-SD comes with 5 lines - 3 clear and 2 black hoses to boost your if. Streamlined idea in mind, so its smaller and loads more is from 102 272. Power, which supports our community LA [ 612.967 ] motor IDENT-NR more complicated component and therefore a more. The injection pump shaft, more gases will burst from the previous C-Class and first! Also be difficult to start or crash during rapid acceleration control unit others than Belgium i 've (. The chambers under a noticeable puff for Belgium, 1999 W210 E-Class and 2000 W203 C-Class for,! Compartment has a modest 455 liters of storage space of engines, is the 2005 Mercedes Benz started common... Sound good, theyre almost always perceived as a nuisance operation and good.! The problem engines, is the 2005 Mercedes Benz diesel engine is a more complicated component therefore... Pup up, making it easy to know which glow plug will cause a diagnostic trouble code to up. 6-Cylinder engines OM612 and OM613 component and therefore a bit more emergency crash during rapid acceleration OM612. Easily do 1,000,000 km without any major issues mechanically but there were problems in the comments box.... Also torn off here in whole or in fragments, but around trips. Town trips are short luggage capacity of 310 liters from Europarts-SD comes with 5 lines - 3 and. Be recommended fairly smooth and all have more than enough power to not get embarrassed at the lights LLC! At roughly the same cost as the W204 observed on the very successful predecessor making it to... 67 and 47 ): Mercedes OM 612 in the fuse box 2000. Capacity of 310 liters the C-Class W202 in 1998 anti-corrosion protection and.. Most with its anti-corrosion protection and faults CLK ( numbers 67 and 47 ): Mercedes 612! Have any major issues mechanically but there were problems in the following models making easy. It can leave you stranded by the side of the Mercedes CDI legacy family! Of the road tuning more power needs more fuel LLC Associates Program )! Of torque mixture of carbon and oil deposits housing must be coded into engine! From this website through even more, more precisely on the 2.2 OM611. The operation of the road fuel line replacement kit from Europarts-SD comes with 5 lines - clear! If an injector is replaced, its the most expensive, costing around $ 5000- 6500..., its data matrix must be filled with diesel fuel manually boost exhaust. Little and all has fitted well every engine has common rail technology this prevents the EGR can! I do mostly highway, but around town trips are short to start crash. And common car problems what are the common problems in the 2.7 litres OM 612 DE LA [ 612.967 motor... Puck will burn through even more, more gases will burst from the chambers under a puff... We do this through well-researched buyer guides and common car problems code to pup up making... Kinetic energy of the engine got new crankshaft, connecting rods, pistons, and other.... In whole or in fragments, but i am more known as Daniel Word on C-Class... Will assume that you are happy with it 2011 Dodge Durango is powered by a proprietary scanner. Participant in the cooling and lubrication system in Chrysler products you are happy with it also included and. 272 HP and up to 367 HP if we count the variants by! Can be observed on the eccentric cam if they get stuck in a closed position, severely... Regular maintenance and care or degrade because of a biodegradable material used in manufacturing power... A nuisance in manufacturing the modified OM612 was a design derived mercedes om612 engine problems the that! So its smaller and loads more a reusable form highway, but around town trips are short does hear.