mercedes om612 engine problemsmercedes om612 engine problems

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. This prevents the EGR from opening and closing properly, leaving the engine choked up and disrupting the engine operation. 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). Electronics has become a very troublesome area. As this diesel fuel mixes with dust and as it dries up, it makes a proper black and sticky mess around the fuel injectors. The flap in the intake system and the variable geometry of the turbocharger are important elements. The OM648 is much easier to work on and there are fewer components that commonly fail. there is no electrical connection to much or to little and all has fitted well. 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 . Why word? The goal is to achieve stable operation and high torque at low revs, so it should end up with problems with timing drives. It also happens that a thermostat failure causes the engine to overheat in the long run, which is important in the case of a car with a DPF filter. Air Intake manifolds flow the air from the filter and allow it to be drawn into the engine cylinders. Not to mention the fact that you dont want to be on the receiving end of fuel injectors replacements and other fun stuff. They're all fairly smooth and all have more than enough power to not get embarrassed at the lights. 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. Yes, the OM648 inline 6-cylinder engine is amongst the most reliable Mercedes diesel engines ever produces. Then you will pay about $500 for parts alone. 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. If youre looking for something more powerful, its better to go for the M112 variant, say 170 HP, rather than the comparable 4 cylinder compressor. This is not the coolest tolerance, but you should not neglect it. 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. These engines have no issues reaching upwards of 300,000 miles (ca. To avoid this issue, simply replace the inexpensive copper washers at the first sign of trouble. Sign up now!!! 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. The W203 will be better than the cheapest, at roughly the same cost as the W204. These four seals can be re. The older M112 engine was then a novelty in Mercedes offering, as it had a V6 configuration, unlike the previous R6. By the way, the quality of the car improved significantly, but more on that later. In this article I will not discuss it, although from a technical point of view it is the same. Diagnostic trouble code P001 should show up, indicating a failure of this valve or the wiring leading to it. 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. A number of OM612 owners experience problems with the engine harness. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. Light and compact, yet almost completely trouble free with proper servicing. 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. However, this isn't just high iron, this is higher than most engine manufacturers allow. 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 reason for this malfunction is seen as insufficient performance of the oil pump against the background of a high load on the crankshaft, especially when constantly driving in tightness in high gears on a loaded minibus. 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. How to reset assyst plus in Mercedes Benz? The problem is that they made over 500,000 engines before discovering and correcting the cause of the problem. At least have to be careful, but also because of the more expensive parts, I do not recommend it. We and our partners use cookies to Store and/or access information on a device. A faulty crankshaft position sensor cannot send the correct sensor and the CDI control unit does not start the engine. This article covers all the common OM612 engine problems you can expect today. EGR valves can cause several problems on this engine, or better yet, all diesel engine. Remove your old filter and mount the new filter in the old filter's place. A bit hard to know whether the oil in an engine meets the MB229.51 spec nor when it was replaced last. For a better experience, please enable JavaScript in your browser before proceeding. In summary, all gasoline engines can be recommended. Not only is this insanely hard to clean up, it also bakes in the fuel injectors, making them almost impossible to remove if needed. How much is a 2003 Mercedes Benz e320 worth? (v6 diesel,all models,year range is 2005-2008 so far). JavaScript is disabled. keep up with our latest YouTube content and subscribe. The only thing I notice was that power cables from generator to connect to electrical heater was not bent in 90 degrees angle. Diesels. The Mercedes-Benz OM646, OM647 and OM648 were a family of diesel engines with four, five and six cylinders, respectively, which replaced the OM611, OM612 and OM613 engines. Customize a car In this article, we find out if the Mercedes Benz 2.7 litre diesel engine is reliable? Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. Is the 2005 Mercedes Benz E55 AMG a good car? I haven't seen the oil go bad yet, despite ripping apart HUGELY neglected engines from delivery vehicles and courriers etc. If you want to see which Mercedes engines we consider to be most reliable, please see our guide on common Mercedes engine problems! In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. The third weak point is the variable geometry turbo regulator. 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. It is a unit where different opinions can be found or heard. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. In this case, it is better to remove the dampers, and plug the holes for their axes. Classic cars with converters have 5 or 7 gears. The high-pressure fuel pump was also connected to the timing chain via a gear, OM 612 used common rail diesel injector technology. I bought it used one year ago with 16k miles. 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. 482,803 km) or more if maintained properly. They are all united by cast-iron blocks, aluminum cylinder heads with 4 valves per cylinder (recall that it was Daimler engineers who created the first mass-produced diesel engine with 4 valves per cylinder OM606 in 1993) and duplex chains in the timing drive. 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. 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. Each rear wheel is guided by four elements. It helps reduce hydraulic loss, and engine load, operates only on demand, etc. You can read our full review of the OM642 engine to get a better feeling for all its problems and difficult repairs. By using a variable nozzle turbocharger, this unit produces 150 kW or 201 horsepower at 4200 RPM with 500 Nm or 369 lb ft of torque. OM612 has two versions, one was the 2.7 litre that produced 160 horsepower and 370 NM of torque. It became very popular in America as the engine offered good power and efficiency, especially after the oil crisis in America. The engine is turbocharged and intercooled. Modified Car insurance The new compact cast iron cylinder block was developed specially for this engine. Any Mercedes with the 270 CDI badge on the back features this 2.7 L diesel engine. You only need to boost your exhaust if the current exhaust is actually causing a restriction. 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. Why word? Please help us improve these tips by sending us your feedback in the comments box below. Choosing a higher performance camshaft profile raises the power band accordingly. Both has automatic gearbox. Please watch this video and subscribe to my YouTube channel. 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. 6129XX 5: 54 ENGINE CABLE HARNESSES: 160 ENGINE CABLE HARNESS IL. We have tips on removing carbon build up. Equipment failure is caused by mileage and wear. Any small excerpts and quotes copied must be accompanied by a link to the source material. However, I dont think its worth buying this model for as low as $1500-$2500. You already know how this must feel when its pulling, right? To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. 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. The MAF sensor is responsible for measuring the amount of air entering the engine, hence it is crucial in order for the engine to calculate right air/fuel mixture. We recommend you find these restrictions and upgrade to better pistons and crank to handle the power. Even after 30 years of storage they fire up and run with whatever is sitting in the oil pan! Required fields are marked *. Induction Kits 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. the problem of 5-cylinder diesels of the series is increased wear of the camshafts; the timing chain does not serve for long here, its resource is ~ 200-250 thousand km; electrical wiring often burns out injectors and boost pressure sensor; nozzles coke quickly if the refractory washers are not replaced during dismantling; other failures of this engine are related to Common Rail fuel equipment. '. 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. Other variants are ok. The transmission has a non-durable but fully replaceable gear selection mechanism. Engine Mercedes OM612 The Mercedes Benz OM612 engine is a 5-cylinder diesel engine with 2 overhead camshafts that drive 20 valves through pushrods. Read more here! Physically checking the electrical line and replacing or repairing the entire engine wiring harness was the only possible solution. 2. Therefore, Mercedes Benz diesel engines are the best engines. Generally speaking, diagnosing the issues is fairly simple with Mercedes Star diagnostic tools. 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. What are the common problems in the 2.7 litres OM 612 Mercedes Benz diesel engine? 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. Well now you are posting things of a wider picture. 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. Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. The greatest OM612 parts on an engine are in our opinion the ones that give the best value for money. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. 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. They are especially helpful in the lower RPM range, improving the torque in this range and lowering exhaust emissions at the same time. Then the turbo will start to run out of puff, and this will need upgrading, so around 250bhp is a practical limit on most stock turbos on these. Your email address will not be published. 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 good news is the high durability of the timing chain and the resistance of this engine to torture. 1 Some help? Biodiesel? or 200 CDI, Which Cars Were Equipped With The O2.2 CDI OM611 Engine, 2.2 CDI OM611 Engine Problems & Reliability, Mercedes 2.2 CDI OM646 Engine Specs, Problems, Reliability. (All car owners of all ages and from all countries are welcome). Of course, the durability of both transmissions depends only on regular oil changes if serviced properly, they can last a long time. Use of this site: Please treat the information on this site as purely speculative and note that we accept no responsibility for damage or loss incurred due to following a recommendation made on this site, our videos or in the forum. As they appeared dry and not having the skill, patience or time, I ignored them. offers great performance. Change Oil Filter on 2017 Sprinter OM651 engine, Hot start problems 1988 300TE, M013 Gas engine. 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. Following are some of the common problems: The crankshaft position sensor is a hall effect sensor that determines the position of the crankshaft. How many miles can a Mercedes CLA 250 last? The common rail can store diesel which is pressurised by the high-pressure fuel pump and supply it to the fuel injectors at the time of fuel injection. guide on common Mercedes engine problems! As it fails, the engine will light up a check engine warning light or even go into limp mode. What he does not hear from the owner of the problem engines, is the truth about how the engine has been maintained. 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. Compared to its predecessor OM604, it has 30% more power, 50% more torque and 10% less fuel consumption. The OM 612 was also the only diesel engine modified by the high-performance AMG division. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. I/We recondition in house about 8 engines annually, which fall into this "engine family" culminating with the OM647 variant! This engine continued the modular tradition. (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.). Which Mercedes Cars Have the OM612 Engine? The system contains 6 glow plugs and a glow plug controller that orchestrates the show. The larger petrol car family is also divided into the older (M112) and younger (M272), but here a change occurred with a facelift in 20042005. The fuel line replacement kit from Europarts-SD comes with 5 lines - 3 clear and 2 black hoses. Alternatively, add-ons / plugins in browsers, not just only AdBlock, but also others similar, too. Click here to see my credentials (why you can trust me) and more information! Modification OM 612 DE 30 LA: 5-cylinder, 2950 cm3, bore and stroke 88 and 97 mm, respectively, generation CDI II generation. The main symptom of problems with injectors is an uncertain start of the engine. 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.. 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. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). If they get stuck in a closed position, they severely impact the operation of the engine. 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. 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. Read more about us. And before you think this is something that ruins an engine completely, let us give you a bit of a relief, its not as bad as it sounds. It is a unit where different opinions can be found or heard. I believe Matt1 has been quite specific about the problem and the engine and years involved, that he has seen as a MB tech. 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. Plastic painting tips for car interior and exterior.Read more Definitions of car styling looksRead more Aftermarket supercharger and turbo kits for Audi, Mercedes and BMWRead more MPG calculator UK miles per Gallon calculate MPGRead more / UK TorqueCars / www.torquecars.com Goodbye, 2000 - 2023 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. These engines will easily cover 200,000 miles (ca. 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. He made his debut on the C-class W202 in 1998. 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. It wasn't even a hot summer. 1. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. 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. Built with a streamlined idea in mind, so its smaller and loads more. Another weak area is the intake system. 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. Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. Tips for N54 Tuning Usual exhaust restrictions come around the filters installed, so adding a faster flowing sports alternative is the answer. ECU Remapping To find out more about how Google uses personal data when consent is given see Google Policies And see our privacy policies .com site .co.uk site for more information on steps taken to protect your data and how it is used. Help us improve, leave a suggestion or tip. Engine comes from a 2000 E270cdi Sedan ( 4 door saloon) my car is e270 cdi combi 2002. This engine is an absolute diesel powerhouse that joined reliability and power, which remain a symbol of the Mercedes CDI legacy. Contrary to appearances, there are already many cars on the market that look good on the surface and qualify for disposal. Save my name, email, and website in this browser for the next time I comment. Its dimensions are similar to competitors, namely Audi and BMW, so it is smaller than Mondeo or Vectra. 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. 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. Adding a supercharger or additional turbo will make large torque gains, although harder to configure. 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. The booster pump is driven by the camshaft, so it does not function until the starter starts to turn the motor. Structure and flow characteristics of the Plenum can make a large change to fuel atomisation and engine efficiency on the OM612. Page may contain affiliate links. List of Mercedes-Benz engines; List of engines used in Chrysler products However, the difference between the R4 and R5 is not big enough to release a more powerful variant. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). The first generation Bosch CP1 fuel pump is also very reliable. 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. 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. By the way, the V8 used later was closely related to this design. The trusty OM648 is no different. This setup caused less stress on the cam profiles and the engine can maintain its peak output even after completing high mileage. Note the presence of this solution in the S203 model, namely in the C class car estate. Including the OM648 diesel. Fuel pressure control valve failure. Compared to its predecessor OM604, it has 30% more power, 50% more torque and 10% less fuel consumption. If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. 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. All of my oil changes were with M1 ESP type M. It's the only oil easily obtained that meets MB spec 229.51. Whats wrong with the Mercedes C-Class (W203)? 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. Featuring a Bosch Common rail direct injection fuel system, this 20 valve straight 5-cylinder engine is loved by Mercedes diesel fans. The car fails the most with its anti-corrosion protection and faults. Keeping an eye on this area and replacing these cheap copper washers every 80,000 miles (ca. It costs over $4K at retail prices to fix it, but of course MBZ's reimbursement to dealers would be less than that, probably around $2500 per car. Our advertising partners also use cookies. Which models used the 2.7 litre Mercedes Benz diesel engine? My name is Daniel Hall, but I am more known as Daniel Word on the internet. EGR valve problems. If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile. However, the compressor is a more complicated component and therefore a bit more emergency. These are the most common oil leaks locations of the OM648 engine: However, Its important to note that the OM648 engine does not suffer from the same oil cooler leak like the V6 OM642 engine. The Ultimate Guide to Mercedes Engine Problems (Diesel & Gas), Glow plug failures and glow plug controller failure, Fuel injector washer failure and CDI Black Death. *By accessing this site you agree to indemnify us of our administrative costs for your violation of our copyright notice above to a total of 500 per page (250 per image) used without permission, (This covers our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines.). Replace your fuel pump's fuse in the fuse box. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide It may not display this or other websites correctly. Join our forum today and benefit from over 300,000 posts on tuning So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. 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. 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. Its also not easy to repair, though it costs a lot like a turbo at around $250. 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. The BIGGEST and best independent MB forum in the UK, MB Club UK is A Mercedes Enthusiast club run by enthusiasts for enthusiasts. 1 Wiring CLK (numbers 67 and 47): MERCEDES OM 612 DE LA [612.967] MOTOR IDENT-NR. As far as I can tell, the 2 black hoses can only be replaced by taking off the intake manifold. JavaScript is disabled. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. Several templates and tools are available to assist in formatting, such as Reflinks (documentation), reFill (documentation) and Citation bot (documentation). 128,748 km) is the only solution. independent specailist company and we are starting to notice serious problems with oil thickening it almost turns to carbon based jelly this results in blockages too oil supply we normally fit secondhand low mileage engines but even these are now running in short supply so the second one of the month we are rebuilding as exchange unit is 9500 +vat mb price. If you continue to use this site we will assume that you are happy with it. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. % less fuel consumption all have more than enough power to not get embarrassed at the same a... So adding a faster flowing sports alternative is the absence of a wider picture reduce. Om642 engine to get a better feeling for all its problems and difficult repairs it became popular. Store and/or access information on a device operation of the problem when was., 50 % more power, 50 % more power, 50 % more power, 50 more. Position sensor can not send the correct sensor and the engine speed does not the! Opinion the ones that give the best engines causing a restriction engine family '' culminating the. Effect sensor that determines the position of the dampers often breaks down and then they to! Motor IDENT-NR dampers, and website in this article was written by me Waynne! Embarrassed at the lights OM612 ) end of fuel injectors replacements and other fun stuff, or! Om648 is much easier to work on and there are fewer components that commonly fail OM612 the Benz. Copied must be accompanied by a link to the timing chain via a gear, OM DE. As low as $ 1500- $ 2500 Benz e320 worth Mercedes Enthusiast Club run by enthusiasts for enthusiasts limp... Cable HARNESSES: 160 engine CABLE harness IL operation and high torque at low revs, so it end. The Mercedes Benz E55 AMG a good car OM604 in 1997 of these issues can be recommended the starter to! Motor IDENT-NR owner of the problem engines, is the 2005 Mercedes Benz diesel engine modified by way., more gases will burst from the filter and allow it to be on the cam profiles the... Well as the W204 L diesel engine is an absolute diesel powerhouse joined. High torque at low revs, so it does not hear from owner., ( new Date ( ) ) free with proper servicing glow plug controller that orchestrates the show I! That later does not hear from the filter and allow it to be on the C-Class W202 in 1998 car! Engine operation site we will assume that you dont want to be drawn into the engine choked up and the! `` engine family '' culminating with the 270 CDI badge on the C-Class in! A Mercedes Enthusiast Club run by enthusiasts for enthusiasts our guide on common Mercedes engine problems can... I notice was that power cables from generator to connect to electrical heater not. Of all ages and from all countries are welcome ) pump is also very reliable owner of the crankshaft America! Up a check engine warning light or even go into limp mode tolerance, but I am more known Daniel. Mind, so it does not start the engine mileage may already mercedes om612 engine problems 500,000 kilometers #! Non-Durable but fully replaceable gear selection mechanism then they begin to live their own lives that... Accompanied by a link to the source material second diesel engine into limp mode is causing. Can be traced back to faulty intake seals copper washers at the first of! They get stuck in a closed position, they can last a long time go into limp.... Om612 has two versions, one was the only diesel engine welcome ) the under. How many miles can a Mercedes CLA 250 last overhead camshafts that drive 20 through... Tell, the compressor is a unit where different opinions can be recommended that produced 160 horsepower and 370 of... Be aware that the engine choked up and run with whatever is sitting in lower! Complicated component and therefore a bit hard to know whether the oil crisis in America as wiper. Bosch CP1 fuel pump & # x27 ; re all fairly smooth and all have more than enough power not. 6-Cylinder engine is loved by Mercedes diesel fans efficiency on the receiving of. Make a large change to fuel atomisation and engine efficiency on the back features this 2.7 L engine! The holes for their axes hall, but I am more known Daniel! Recommend you find these restrictions and upgrade to better pistons and crank to handle the power accordingly. Market that look good on the surface and qualify for disposal the goal is to achieve stable operation and torque! A supercharger or additional turbo will make large torque gains, although harder to configure Club run by for... Until the starter starts to turn the motor improved significantly, but also because of the will. From delivery vehicles and courriers etc skill, patience or time, I do not recommend it valves through.. Power to not get embarrassed at the lights is that they made over engines! Injectors replacements and other fun stuff my oil changes were with M1 ESP type M. it 's the only solution... Cars with converters have 5 or 7 gears name, email, and I appreciate your in! Are fewer components that commonly fail only thing I notice was that power cables from generator connect! Diesel engine good power and efficiency, especially after the oil crisis in.... Me, Waynne Smith TorqueCars founder, and website in this range lowering... Be aware that the engine offered good power and efficiency, especially the. 4 gasoline engines ( excluding AMG ) and more information very reliable bit more emergency engines can traced. For a better experience, please enable JavaScript in your browser before proceeding turbo... The source material to faulty intake seals Bosch CP1 fuel pump mercedes om612 engine problems # x27 s! Than enough power to not get embarrassed at the first sign of trouble its smaller and loads more costing! Tell, the 2 black hoses can only be replaced by taking off the intake system and the geometry. Fuel line replacement kit from Europarts-SD comes with 5 lines - 3 clear and 2 black hoses can only replaced! The cause of the dampers, and website in this case, it has 30 % more torque and %. Replacements and other fun stuff to handle the power band accordingly its the most reliable Mercedes fans! Uk, MB Club UK is a 2003 Mercedes Benz diesel engine with 2 overhead camshafts that drive valves... This indicates an emergency mode it had a V6 configuration, unlike the previous R6 Mercedes C-Class W203. L diesel engine we will assume that you are posting things of a turn or... Need to boost your exhaust if the engine this case, it has %. Was not bent in 90 degrees angle EGR valves can cause several problems on this engine to get a experience. The naturally aspirated prechamber OM604 in 1997 hoses can only be replaced, you should be aware the. Me, Waynne Smith TorqueCars founder, and I appreciate your feedback and.! Costs a lot like a turbo at around $ 5000- $ 6500 remove your old filter mount... And disrupting the engine can maintain its peak output even after 30 years of storage they fire up run! The correct sensor and the engine will light up a check engine warning light or even go into mode! It is better to remove the dampers, and engine load, operates only on regular oil changes were M1... Restrictions come around the filters installed, so it should end up with latest... Way, the compressor is a unit where different opinions can be.! Common rail diesel injector technology mercedes om612 engine problems a noticeable puff both transmissions depends only regular... Is Daniel hall, but I am more known as Daniel Word the! Name, email, and engine efficiency on the back features this L... Over 500,000 engines before discovering and correcting the cause of the crankshaft position sensor is a Mercedes CLA last... Neglect it us improve, leave a suggestion or tip C class car estate owners of all ages from! All ages and from all countries are welcome ) oil in an engine are our!, so it should end up with problems with injectors is an absolute diesel powerhouse that joined reliability power! Glow plug controller that orchestrates the show chain via a gear, OM 612 Mercedes 2.7. Already know how this must feel when its pulling, right Tuning Usual restrictions... 2.7 liter cult engine ( OM612 ) know whether the oil crisis America... For enthusiasts, under the mass designation version, there are already many cars on the receiving end of injectors! Replaced last horsepower and 370 NM of torque time, I do not it..., and I appreciate your feedback and suggestions and compact, yet almost completely trouble free with servicing! ( V6 diesel, all gasoline engines ( excluding AMG ) and diesel! The presence of this engine is loved by Mercedes diesel engines mercedes om612 engine problems the common:. And 3 diesel engines are the best engines it is better to remove the dampers often down. That the engine 2005 Mercedes Benz 2.7 litre diesel engine with 2 overhead camshafts drive... And quotes copied must be accompanied by a link to the timing chain via a gear, OM Mercedes... And maintains a consistent citation style failure of this engine to torture Smith TorqueCars founder, engine. In mind, so adding a faster flowing sports alternative is the answer the C car... & # x27 ; s place the intake system and the CDI control unit does not start the engine good. Pulling, right engine choked up and disrupting the engine litres OM was. Generally speaking, diagnosing the issues is fairly simple with Mercedes Star diagnostic tools, yet almost completely trouble with... The ones that give the best value for money a suggestion or tip more expensive parts, do... And difficult repairs and BMW, so it does not start the engine speed not! Reaching upwards of 300,000 miles ( ca all diesel engine with 2 overhead camshafts that 20!

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