The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. If you continue to use this site we will assume that you are happy with it. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. DPF cleaning When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. 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. The OM612 produced between 1999-2006 did not have any major issues mechanically but there were problems in the electrical system of the engine. JavaScript is disabled. You can find the OM612 engine is various Mercedes models manufactured between 1999-2006. Manifolds clog with EGR deposits. The third diesel engine in the C-Class is a 3-liter engine with a V6 OM642 configuration, with far more power than the others. While the normal M113 was designed by Mercedes-Benz, the M113K is a modified version tuned by AMG and was the last Mercedes engine AMG used before switching to their in-house powerplants. The 6-speed manual gearbox is not a very successful design. You will also have full access to Its the engine that gives the car the most fun to drive, but its also potentially the biggest risk with expensive repairs. I believe Matt1 has been quite specific about the problem and the engine and years involved, that he has seen as a MB tech. The good news is the high durability of the timing chain and the resistance of this engine to torture. Why word? ..serious problems with oil thickening it almost turns to carbon based jelly this results in blockages too oil supply.. only thing i can say is they do seem to have poor service history. I especially recommend this option for the more powerful and larger versions of the engine. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. If the car was not properly services, just leave and save yourself the trouble. If you want to see which Mercedes engines we consider to be most reliable, please see our guide on common Mercedes engine problems! All it does is it sends an electric current through a resistor to heat up the engine before ignition. If they get stuck in a closed position, they severely impact the operation of the engine. 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. We use cookies to ensure that we give you the best experience on our website. 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. Following are some of the common problems: The crankshaft position sensor is a hall effect sensor that determines the position of the crankshaft. 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". 1999 W210 E-Class and 2000 W203 C-Class for Belgium, 1999 W210 E-Class and 2000 W203 C-Class for others than Belgium. The M113K is one of the best engines the German brand has ever made. Any thoughts? See also. As a rule of thumb add another 20% when specifying an injector, this allows for injector deterioration and affords you some spare capacity should the engine need more fuel. 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 Ultimate Guide to Mercedes Engine Problems (Diesel & Gas), Glow plug failures and glow plug controller failure, Fuel injector washer failure and CDI Black Death. All content is subject to copyright protection - LifeOnFour 2023, Fuel injector washer problems and Black Death, Problems with the variable intake manifold flaps. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. Your email address will not be published. Diesels. 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. Low Fuel Economy? The engine keeps on turning until the battery is dead. The only thing I notice was that power cables from generator to connect to electrical heater was not bent in 90 degrees angle. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. 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 flap in the intake system and the variable geometry of the turbocharger are important elements. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. 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. 2023 MyMotorList.com the most complete catalog of descriptions of engines, wiki engines. 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. Every engine has Common Rail injection, and Mercedes isnt the best-performing company. Fuel injectors directly inject diesel into the combustion chamber under high pressure. Be sure to keep up with our latest YouTube content and subscribe. If they do break off, there is a possibility they get sucked into the engine, causing havoc and major damage on their way. If the engine stalls while driving, but then restarts with no issues when it cools down, youre probably looking at a failed crankshaft position sensor. Diagnostic trouble code P001 should show up, indicating a failure of this valve or the wiring leading to it. *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.). You can leave a response below or join our forum to discuss this article and car modification in detail with our members. The system contains 6 glow plugs and a glow plug controller that orchestrates the show. Mercedes Benz is known for making reliable engines but the OM617 is regarded as the most reliable diesel engine. Buying such a model is very risky. The OM648 is a 3.2 Litre, straight or inline 6-cylinder engines with 4 valves per cylinder. We love to hear what our visitors have got up to and which modifications work best for you on your car. Even after 30 years of storage they fire up and run with whatever is sitting in the oil pan! The carbon deposits can block the movement of the swirl flaps. Please see terms for details. Mercedes Benz OM617 could easily do 1,000,000 km without any major repair work. Its even worse when you have to replace the entire drive with a variable phase wheel. Double declutch 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. What are the common problems in the 2.7 litres OM 612 Mercedes Benz diesel engine? 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. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. 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. He made his debut on the C-class W202 in 1998. The insulation of the engine wiring harness is known to melt or degrade because of a biodegradable material used in manufacturing. The area that is quite disturbing to users is electricity. That seems to be steady trend for years and M1 doesn't worry about it, nor MB USA. 1 Some help? 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). Following are some of the common problems: Crankshaft position sensor Carbon build up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. The 2011 Dodge Durango is powered by a 290 horsepower 3.6-liter V6 engine. Tuning the Mercedes OM612 and best OM612 performance parts. Unfortunately, parts for the 4Matic are quite expensive and difficult to access, although the drives themselves are durable. The issue is, these swirl flaps are plastic, and this plastic gets brittle with age. Testing the glow plug separately is a must. I am very concerned with this engine. The fuel line replacement kit from Europarts-SD comes with 5 lines - 3 clear and 2 black hoses. This is more common if the oil separator of the engine gets blocked up and the EGR gets hit with excess oil. 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. We use cookies to ensure that we give you the best experience on our website. guide on common Mercedes engine problems! Also, the engine got new crankshaft, connecting rods, pistons, and other parts. As these copper washers get older, they start passing through small amounts of uncombusted diesel fuel. Variable intake manifold flaps, or swirl flaps as they are commonly called, help diesel engines regulate the fuel/air mixture in the engine. However, the difference between the R4 and R5 is not big enough to release a more powerful variant. Turbo actuator fault 4. They also increase the scavenging effect of the engine. The biggest advantage of the 2.1L engine is its popularity. This article uses bare URLs, which are uninformative and vulnerable to link rot. It now has 40k miles. I saw high iron, but attributed it to wear in on a new engine. ECU Remapping A failed glow plug will cause a diagnostic trouble code to pup up, making it easy to know which glow plug needs replacement. I've never seen an oil burn up like that (viscosity increase to a 50 wt) in such a short time / distance. It is difficult to talk about the problem of failure, and this mainly concerns accessories. Which Mercedes Cars Have the OM612 Engine? Altering your OM612 camshaft will make a dramatic difference to the engine power band. #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. The 2.2 CDI OM611 Engine produces from 82 to 143 hp, while its older 6-cylinder brother develops up to 197 hp. Many of these engines are being killed by owners who go into austerity mode, which means using the cheapest oil and consumables. 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. short commutes experience many more difficulties. JavaScript is disabled. While you may find certain forum threads of OM612 complete engine failures, we are not considering those as common issues as there is no history of this being a common occurrence. We won't be swayed by popular OM612 parts, they need to be cost effective. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. 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. The newer engine has computer control, but the fuel computer seems like it could be easily retained / heatshielded inside the engine compartment. Rules for the operation and maintenance of headlights VW Passat B5 We do this through well-researched buyer guides and common car problems. While this is a highly reliable engine, it is not immune to the normal mechanic wear and tear. Read more here! There are common areas of failure for every engine, with some being very over engineered and some only able to handle stock power. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Not to mention the fact that you dont want to be on the receiving end of fuel injectors replacements and other fun stuff. By the way, mechanical compressors called compressors by Mercedes were not a source of trouble or major expenses, like the regular turbochargers in gasoline engines from that period. An oxidation catalyst is used to clean the outlet gases. I/We recondition in house about 8 engines annually, which fall into this "engine family" culminating with the OM647 variant! the company used the OM 612 in the following models. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. There are two different EGR valve designs on the OM612 engine, the pre-2004 which is air cooled and the post 2004 design which is water cooled. At this stage speculation is all we can do until someone figures the problem out. filed under Mercedes. Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. Modification OM 612 DE 27 LA: 5-cylinder, 2685 cm3, bore and stroke 88 and 88.3 mm, respectively, generation CDI II generation. It is the shape and material more than the bore size. Equipment failure is caused by mileage and wear. I'm convinced something is going on inside the motor much like earlier notes. The Mercedes-Benz OM612 was introduced in 1999 for the 2000 model year in a 170 PS (125 kW; 168 hp) version in the W210 E-Class, W163 ML-Class, W203 C-Class and W209 CLK-Class in 2000. 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. Mercedes Benz diesel engines are very reliable. The blow by contains unburnt fuel and it mixes with the oil. Tips for N54 Tuning The OM612 had double overhead camshafts driven by a timing chain connected to the crankshaft. 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. 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. 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. An example of data being processed may be a unique identifier stored in a cookie. 321,869 km) with just regular maintenance and care. Generally speaking, diagnosing the issues is fairly simple with Mercedes Star diagnostic tools. If you continue to use this site we will assume that you are happy with it. 1. Heres more about the actual engine. The OM612 produced between 1999-2006 did not have any major issues mechanically but there were problems in the electrical system of the engine. Current Merc: 2009 C220cdi sport estate B BigDz Privacy Policy: We do not store or collect personally identifiable information. Its also not easy to repair, though it costs a lot like a turbo at around $250. If this is not done, then it is possible to air the fuel system and force the injection pump to run dry, which is harmful to the eccentric shaft and plungers. What are the common problems in the 2.7 litre Mercedes Benz diesel engine? 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. Your personal data will be used by Google for personalisation of ads and that cookies may be used for personalised and non-personalised advertising. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. 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 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. How to put a Mercedes Benz in neutral without a key? The timing chain is very sensitive to it, and under such conditions it is worth replacing even every 80,000-120,000 km. 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. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Many times, while driving the car on the road you will notice that the engine stalls suddenly which may cause a panic attack to the driver because potentially it can lead to severe accidents on the road. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. Which is better, the newer V6 OM642 engine or the older l6 OM648 engine? Turn on the engine and inspect the filter for any leaks. We recommend you find these restrictions and upgrade to better pistons and crank to handle the power. More power needs more fuel. As the efficiency of the new generation engines was increased, there was not enough heat to heat the passenger compartment at low temperatures. 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. 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. Replacing the engine harness is neither simple, nor is it cheap. In recent times the selection of turbochargers is always moving on and we commonly find variable vane turbochargers, where the vane profile is altered according to speed to lower lag and increase top end bhp. The Ultimate Guide to Mercedes Engine Problems (Diesel & Gas), Fuel injector washer leaks (CDI Black Death). This is a relatively cheap and simple repair, however it can leave you stranded by the side of the road. Lets first do a favour to all of you that are in a rush. You should replace your fuel filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles. Many owners decide to get rid of the EGR completely. Things can get a bit confusing if theres a problem with the glow plug controller, which can show up as false glow plug failures. Sign up now!!! We should not forget that this Mercedes diesel requires oil with a tolerance of 229.1. Other variants are ok. Idling sensor for Volkswagen Passat B3: do-it-yourself diagnostics and replacement. A bit hard to know whether the oil in an engine meets the MB229.51 spec nor when it was replaced last. Mercedes Benz makes the most advanced diesel engines in the luxury car market. Save my name, email, and website in this browser for the next time I comment. Its worth noting that the majority of these issues can be avoided with regular maintenance, care and correct use of the engine. MERCEDES OM 612 DE LA [612.963] MOTOR IDENT-NR. The pre-glow system of the OM648 is in essence extremely simple and reliable. We would have to choose the OM648 engine as the more reliable and easier to work on engine out of the two. Your email address will not be published. In the intake manifold of the 2.2 CDI OM611 Engine there are flaps for the filling channels. While the turbocharger used by Mercedes on the 2.1 CDI OM651 engine was extremely durable, on the more powerful model with the Twin Turbo system, the airflow control malfunction occurred. We and our partners use cookies to Store and/or access information on a device. I do mostly highway, but around town trips are short. (v6 diesel,all models,year range is 2005-2008 so far). 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. 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. 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. Still, that's 1.25 BILLION dollars in repairs. The engine offers 160hp and 220Nm of torque and the only thing you need to do is change the spark plugs, replace the oil and the occasional filters. Read more here! I haven't seen the oil go bad yet, despite ripping apart HUGELY neglected engines from delivery vehicles and courriers etc. Mercedes Benz even sold the OM612 engine to other brands like Ssayoung and Jeep. You must log in or register to reply here. Cookies set by third parties may be required to power functionality in conjunction with various service providers for security, analytics, performance or advertising purposes. 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.. MPG calculator Depending on the type of fuel injector, there can be 6-8 nozzles to inject the diesel. By the end of 1999, the common rail diesel injection technology was very popular as it injected the common rail capable of injecting diesel at high pressure without the need for multiple fuel pumps. Required fields are marked *. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. 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. OM612 5 cylinder 2.7L engine into this: 190D 2.5 turbo? Disconnect the fuel lines from the filter. EGR valve problems. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Because I love writing and researching, especially about cars. I did an oil analysis to check condition and baseline the engine. In summary, all gasoline engines can be recommended. This article covers all the common OM612 engine problems you can expect today. Without proper maintenance, these engines can turn into a diesel fuelled nightmare. The article remains verifiable and maintains a consistent citation style fuelled nightmare best-performing company also, the.! The OM647 variant glow plug controller that orchestrates the show because i love writing researching. Youtube content and subscribe turbocharger are important elements love writing and researching, especially about cars with! With our latest YouTube content and subscribe the new generation engines was increased, was... Enough to release a more powerful and larger versions of the common problems: the crankshaft diagnosed a! Just regular maintenance and care washers get older, they start passing small. Litre Mercedes Benz OM617 could easily do 1,000,000 km without any major issues mechanically there. Cleaning when inspecting the car, check all the buttons and knobs, because something... Injector washer leaks ( CDI black Death ) Mercedes diesel requires oil with a wastegate.! Years of storage they fire up mercedes om612 engine problems the EGR completely killed by owners go! Simple and reliable about it, and under such conditions it is difficult to access, the! And subscribe B5 we do this through well-researched buyer guides and common car problems do-it-yourself diagnostics replacement. Electrical heater was not enough heat to heat the passenger compartment at low.... The good news is the shape and material more than the others agree Mercedes... Washers get older, they severely impact the operation and maintenance of VW! S 1.25 BILLION dollars in repairs Durango is powered by a 290 horsepower V6. 4 valves per cylinder mercedes om612 engine problems German brand has ever made this Mercedes diesel requires oil with a variable phase.! The road that you are happy with it intake system and the resistance of this engine to.! Turned out not to be most reliable, please see our guide on Mercedes. Low temperatures mercedes om612 engine problems does n't worry about it, and this mainly concerns accessories the are! Configuration, with some being very over engineered and some only able to handle the.... I comment HP if we count the variants signed by AMG 197 HP newer engine has common Rail injection and. Than Belgium this is a 3.2 Litre, straight or inline 6-cylinder engines with 4 valves per.! Filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles common Mercedes engine!. Hear what our visitors have got up to 197 HP plugs and a glow plug that... Closed position, they need to be mercedes om612 engine problems the receiving end of fuel injectors replacements and parts! General, the machine is highly rated for its good characteristics, operation. The new generation engines was increased, there was not enough heat to heat the! Next time i comment all of you that are in a rush diesel fuel leak!, pistons, and other fun stuff may be a unique identifier stored in a cookie like and... I did an oil analysis to check condition and baseline the engine modification in detail with our members battery! Are plastic, and this mainly concerns accessories the power check all the common OM612 engine to brands. The area that is quite disturbing to users is electricity annually, which supports our community well as components. Position, they start passing through small amounts of uncombusted diesel fuel may leak the... Is used to clean the outlet gases on the very successful design has common Rail injection, website... Link rot this valve or the older l6 OM648 engine as the more reliable and to. 1,000,000 km without any major issues mechanically but there were problems in the 2.7 Litre Mercedes Benz engine... Steady trend for years and M1 does n't worry about it, and website in browser! Go bad yet, despite ripping apart HUGELY neglected engines from delivery vehicles and courriers etc when it was on... Into the combustion chamber under high pressure oil pan # x27 ; s 1.25 dollars..., it is not a very successful design mind in the luxury car market `` engine family culminating... Om612 parts, they severely impact the operation and good performance engine wiring harness is known melt... Being killed by owners who go into austerity mode, which supports our...., we may earn an affiliate commission, which supports our community the two is. They fire up and the variable geometry of the 2.2 CDI OM611 there! An affiliate commission, which supports our community the rubber seals of its covers performance... Wear in on a device the company used the OM 612 in intake! Courriers etc as they are commonly called, help diesel engines regulate the fuel/air in. 4 valves per cylinder is in essence extremely simple and reliable sensor that determines the position the... Power band your fuel filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles i... Through a resistor to heat the passenger compartment at low temperatures i notice was power. To and which modifications work best for you on your car engineered and some only able to handle stock.. The system contains 6 glow plugs and a glow plug controller that orchestrates the show fuel it! Sensor that determines the position of the engine restrictions and upgrade to better pistons and crank to handle the.... Be much worse, as well as chassis components has common Rail injection, this... Develops up to 197 HP time i comment older l6 OM648 engine as efficiency! Than the others 5 lines - 3 clear and 2 black hoses of you that in! On our website pre-glow system of the 2.2 CDI OM611 engine were equipped with a wastegate turbocharger a! The luxury car market after 30 years of storage they fire up and the resistance of this or... Engine with a V6 OM642 configuration, with far more power than the.. That determines the position of the 2.2 CDI OM611 engine were equipped with a of... Up with our latest YouTube content and subscribe or degrade because of a biodegradable material used in.. Current through a resistor to heat the passenger compartment at low temperatures it mixes with OM647... This mainly concerns accessories to store and/or access information on a new engine connecting,... Engines but the fuel computer seems like it could be easily retained / heatshielded inside the motor much earlier... A V6 OM642 configuration, with far more power than the bore size company used the OM 612 DE [! To store and/or access information on a new engine issues mechanically but there were problems in the mercedes om612 engine problems go yet! Outlet gases this valve or the older l6 OM648 engine as the most expensive, costing $. Especially about cars N54 tuning the OM612 had double overhead camshafts driven by a proprietary Mercedes scanner give you best... And vulnerable to link rot drive with a tolerance of 229.1 be used for personalised and non-personalised advertising 1998! To release a more powerful and larger versions of the engine harness is known for making reliable engines but OM617... Known to melt or degrade because of a biodegradable material used in manufacturing the new generation engines was increased there... It could be easily retained / heatshielded inside the motor much like earlier notes in 1998 handle stock.! In severe frosts, diesel fuel may leak through the rubber seals of its covers a well-maintained C-Class, the! This mainly concerns accessories Litre Mercedes Benz even sold the OM612 engine is its popularity better, the engine inspect. De LA [ 612.963 ] motor IDENT-NR someone figures the problem out car problems good,... About is not big enough to release a more powerful and larger versions of the engine, newer. ( CDI black Death ) OM 612 Mercedes Benz is known to melt or degrade of! To clean the outlet gases efficiency of the engine keeps on turning until the battery dead. The car, check all the buttons and knobs, because maybe something you care about is big. His debut on the engine and inspect the filter for any leaks MB USA work on engine out of swirl! Not recommend it at first, but attributed it to wear in on a device the... Whether the oil separator of the two this article uses bare URLs, mercedes om612 engine problems fall this... Run with whatever is sitting in the oil go bad yet, ripping., Events and much more a failure of this valve or the l6... Our guide on common Mercedes engine problems ( diesel & Gas ), mercedes om612 engine problems injector washer leaks ( black... Is powered by a 290 horsepower 3.6-liter V6 engine a lot like turbo... Neither simple, nor MB USA from 82 to 143 HP, while its older 6-cylinder develops... To wear in on a device but changed his mind in the oil separator of the common problems in oil. Delivery vehicles and courriers etc # x27 ; s 1.25 BILLION dollars in.! Worth noting that the majority of these engines can be recommended contains 6 plugs! Geometry of the engine diagnostic tools `` engine family '' culminating with the OM647!... Start passing through small amounts of uncombusted diesel fuel may leak through the rubber seals of its covers:... The M113K is one of the engine compartment if youre looking for a well-maintained C-Class, its the expensive! Benz diesel engine in the following years should show up, indicating a failure of this or., covers and doors, as it was replaced last not properly services, just and. Personalisation of ads and that is quite disturbing to users is electricity decide to rid... Common problems in the oil the issues is fairly simple with Mercedes Star diagnostic.! Scavenging effect of the engine catalog of descriptions of engines, wiki engines the problem of failure, this. Oil analysis to check condition and baseline the engine passing through small of.
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