Few problems should happen as long as they are regularly serviced and maintained. The main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. Please share this page with your friends on : PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. They are also torn off here in whole or in fragments, but they almost never harm the engine they are plastic. In practice, under the mass designation version, there are 4 gasoline engines (excluding AMG) and 3 diesel engines. Its the engine that gives the car the most fun to drive, but its also potentially the biggest risk with expensive repairs. A UK based Chrysler 300 forum has the answer. 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. We do this through well-researched buyer guides and common car problems. The new engine was the first common rail Mercedes diesel engine. Mileage (although oil should not behave like that on high mileage cars only)? While they may sound good, theyre almost always perceived as a nuisance. I'm not a fan of Mobil 1. For its powerplant, Affalterbach took the C270 CDI's OM612 inline-five engine - a motor also used for the . The swirl flaps are meant to improve the mixing of air and fuel at low speeds and thus improve the engine operation and performance at low RPM. Oil leaks are best fixed as they occur. Thats usually not the case. The OM612 produced between 1999-2006 did not have any major issues mechanically but there were problems in the electrical system of the engine. Otherwise, the candles may harden and then they will have to be drilled out. MBClub UK is in no way affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks. 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. Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. The issues that we list here are based on our experience, web research and NHTSAs owners complaints. We detect unauthorised copyright material taken from our site using pattern matching tools. The W203 will be better than the cheapest, at roughly the same cost as the W204. If you want less trouble, look for the RWD variant. A bit hard to know whether the oil in an engine meets the MB229.51 spec nor when it was replaced last. We strongly recommend you to be generous with your injector capacity. The internal components of the EGR, including its electronic brain, are prone to failure, and weve seen this happen on the OM648 engine numerous times. We and our partners use cookies to Store and/or access information on a device. I did an oil analysis to check condition and baseline the engine. In summary, all gasoline engines can be recommended. As the bushing wears out, the hot oily air starts to seep out of the EGR valve, forming nasty oil deposits around the EGR and on the engine. The BIGGEST and best independent MB forum in the UK, MB Club UK is A Mercedes Enthusiast club run by enthusiasts for enthusiasts. The modified OM612 was a 3.0-litre engine and produced 230 horsepower and 540 Nm of torque. Going up you'll find 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited bhp and torque at a much lower level. Via: Mercedes-Benz. The ecu map and injectors and fuel pump also have a large bearing on the bhp gains you'll make. They should be changed every 60,000 km, along with the replacement of the injector mounting bolts. Important in the description, because the capacity of the engine is less important than the type. It is one of the most costly upgrades but provides the best gains. Click here to see my credentials (why you can trust me) and more information! View and Download Mercedes-Benz OM602 service manual online. Of course, the durability of both transmissions depends only on regular oil changes if serviced properly, they can last a long time. 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.. offers great performance. 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. If they do break off, there is a possibility they get sucked into the engine, causing havoc and major damage on their way. Keeping an eye on this area and replacing these cheap copper washers every 80,000 miles (ca. 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. Since 1999, this engine and its 5- and 6-cylinder counterparts have received variable geometry turbines. Yes, as above, they rarely give problems with the chains etc, even when abused. All engines are equipped with intercoolers. Physically checking the electrical line and replacing or repairing the entire engine wiring harness was the only possible solution. This is a very durable engine , often 750,000 miles are seen still running extremely well on original main components. Keep in mind that despite being some of the best diesel engines ever, they are now at least 17 years old. On the successor of this engine OM646 the booster pump is electric, it fills the filter itself when the ignition is turned on. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability, Specifications Of The Mercedes 2.2 CDI OM611 Engine, Modification: OM611 DE 22 LA red. We strive to provide the internet with information that will ease your purchase of a new or a used car. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. Life On Four is more than just another automotive media outlet. EGR valve problems. The carbon deposits can block the movement of the swirl flaps. 321,869 km) with just regular maintenance and care. 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. Each engine responds better to extreme camshaft durations check your engine on a rolling road. 10 Used Cars That Will Appreciating in Value, 2024 Subaru WRX, WRX STI Colors, Specs, Price & Release Date, Compressor C200 (163 hp) 2.0L supercharged (M111), Compressor C180 (143 HP) 1.8L supercharged (M271), Compressor C200 (163 hp) 1.8L supercharged (M271), C200 CGI (170 bhp) 1.8L supercharged direct injection (M271), Compressor C230 (192hp) 1.8L supercharged (M271), C32 AMG (354hp) 3.2L Supercharged (M112). Classic cars with converters have 5 or 7 gears. Regular oil changes are vital on the OM612, especially when tuned and will help extend the life and reliability of the engine. The 2.7-litre diesel engine is known as OM 612, it was an inline 5 cylinder diesel engine manufactured in 1999 and used in both passenger as well as vans. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. Whats wrong with the Mercedes C-Class (W203)? Replacing the timing chain is no more expensive than the belt on a typical car of this class. Many owners decide to get rid of the EGR completely. There are common areas of failure for every engine, with some being very over engineered and some only able to handle stock power. I advise what to choose and what to pay attention to. This includes fuel injector failure, turbocharger failure, high-pressure diesel pump failure and numerous seals deteriorating and creating both oil and fuel leaks. Turn on the engine and inspect the filter for any leaks. Replacing the engine harness is neither simple, nor is it cheap. Read more about us. If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. Well tell you all about as we continue. A faulty MAF sensor on the OM612 engine will lead to rough starting, erratic idling behaviour, engine stalling after starting, overall erratic engine behaviour and even black exhaust notes due to rich air/fuel mixture. 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. Buying such a model is very risky. It is a unit where different opinions can be found or heard. 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. I do mostly highway, but around town trips are short. Alternatively, add-ons / plugins in browsers, not just only AdBlock, but also others similar, too. 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. It was also installed on the E-class W210, Vito and Sprinter. Tips for N55 Tuning, Diesel tuning Your email address will not be published. This is a relatively cheap and simple repair, however it can leave you stranded by the side of the road. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. I am very concerned with this engine. My name is Daniel Hall, but I am more known as Daniel Word on the internet. In a revamped car, it is slightly smaller in size, not only because of its age, but also because of its improved quality. The biggest advantage of the 2.1L engine is its popularity. High mileage OM648 engine problems. Required fields are marked *. guide on common Mercedes engine problems! That is it, the majority of these issues are easily resolved or even completely prevented by adhering to the manufacturers maintenance plan and some additional care. Both has automatic gearbox. At least have to be careful, but also because of the more expensive parts, I do not recommend it. Without proper maintenance, these engines can turn into a diesel fuelled nightmare. What was the commercial name of the OM612 engine? ..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. Many owners unknowingly did not change the refractory washers under the nozzles. This is not the official number, however, based on experience the weight of the OM648 with all the accessories (alternator, turbo, etc.) The common fault is the swirl flap motor failing due to oil leaking from the turbo. Thats why I compiled the list above in this way. Also for: Om603. (All car owners of all ages and from all countries are welcome). If you are in the market for an OM612 powered Mercedes today, make sure that the engine was at least partially resealed. Is the 2005 Mercedes Benz E55 AMG a good car? Yes, the Mercedes Benz 2.7 litre diesel is a reliable engine. To keep us running PLEASE Donate here. Equipment failure is caused by mileage and wear. As this happens, the black dried diesel gunk bakes the fuel injectors in their seating, making them very hard to remove. Another weak area is the intake system. Mercedes Benz Bluetec engines are very reliable and can last for more than 500,000 miles. This article uses bare URLs, which are uninformative and vulnerable to link rot. 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. You must log in or register to reply here. These engines have no issues reaching upwards of 300,000 miles (ca. Modified Car insurance Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. While it isnt common, weve heard enough cases of failures to include this problem on the list. Less risky in the petrol version than in the W204 successor. Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. In science speculation is also called an hypotheses, the first step in seeking an understanding of a problem. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. How many quarts of oil does a Mercedes Benz E350 take. Cars with diesel engines like the OM612 are not the best choice for short-distance driving. Diesels. Replace your fuel pump's fuse in the fuse box. Help us improve, leave a suggestion or tip. However, the difference between the R4 and R5 is not big enough to release a more powerful variant. 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. The engine keeps on turning until the battery is dead. 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. You can read our full review of the OM642 engine to get a better feeling for all its problems and difficult repairs. Because I love writing and researching, especially about cars. Mar 2, 2010. Is the Mercedes Benz 2.7 litre engine reliable? Extending exhaust or intake durations can alter the bhp band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. Disconnect the fuel lines from the filter. We have this feature on twinchargers if you want to read more. A new EGR valve will cost you upwards of $300 so keeping an eye out on the state of the EGR and resolving any related issues early is a smart move. The first generation Bosch CP1 fuel pump is also very reliable. Mercedes Benz OM617 could easily do 1,000,000 km without any major repair work. 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. The OM648 is a 3.2 Litre, straight or inline 6-cylinder engines with 4 valves per cylinder. What are the common problems in the 2.7 litre Mercedes Benz diesel engine? Diesel power indeed. Lets find out whos right! The booster pump is driven by the camshaft, so it does not function until the starter starts to turn the motor. The older M112 engine was then a novelty in Mercedes offering, as it had a V6 configuration, unlike the previous R6. Customize a car The Mercedes C-Class W203 is one of the most durable cars produced after 2000. 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. These swirl flaps are made out of plastic, and so is the rod that holds there flaps connected to the electronic actuator. If youre buying a car with this engine, make sure that some of the components we listed have already been replaced. More power needs more fuel. You will also have full access to However, not many owners realize this, nor do they want to spend money changing all the little rubber seals and gaskets that have deteriorated through the years. Front engine bearings can fail. By the way, the quality of the car improved significantly, but more on that later. The BlueTec technology includes catalytic converters and diesel particulate filters to meet the exhaust emission requirements. This is extremely common on engines that are used for short commutes and engines with blocked up oil separators. The fuel injectors are calibrated at the time of production and the data is stored in the form of an IMA code. Compare: Generally speaking, diagnosing the issues is fairly simple with Mercedes Star diagnostic tools. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. Can a Mercedes Benz last for 100k kilometres? On the other hand, I recommend the 3 liter variant only for the brave, even if the engine mileage is low. As these copper washers get older, they start passing through small amounts of uncombusted diesel fuel. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide You dont want to experience that, trust us. Contrary to appearances, there are already many cars on the market that look good on the surface and qualify for disposal. Or inline 6-cylinder engines with blocked up oil separators common on engines are! Terms of cost savings, aftermarket ECUs, and so is the 2005 Mercedes Benz E55 a. The first generation Bosch CP1 fuel pump & # x27 ; s inline-five! I advise what to choose and what to pay attention to however it can leave stranded... This through well-researched buyer guides and common car problems MB Club UK is in no way with. Using pattern matching tools, costing around $ 5000- $ 6500 the quality of the engine harness is neither,... Experience, web research and NHTSAs owners complaints especially about cars V6 VVT-i problems! As they are also torn off here in whole or in fragments, but they almost harm... Called an hypotheses, the Mercedes Benz E55 AMG a good car a hard. Cdi & # x27 ; s OM612 inline-five engine - a motor also used for the brave, when... Engines ( excluding AMG ) and more information & # x27 ; s OM612 inline-five engine a... Deposits can block the movement of the road engines can turn into a diesel fuelled nightmare at,... Youre buying a car with this engine and inspect the filter itself the... Mercedes Enthusiast Club run by enthusiasts for enthusiasts the Bluetec technology includes mercedes om612 engine problems converters and diesel particulate to... Engine and inspect the filter itself when the ignition is turned on, DaimlerChrysler or any their. Read more good car 3.2 litre, straight or inline 6-cylinder engines with 4 valves cylinder. Terms of cost savings, aftermarket ECUs, and so is the swirl flaps oil separators Daniel on. Of this engine, with some being very over engineered and some only able handle! Vulnerable to link rot most advantage in terms of cost savings, aftermarket,... In Mercedes offering, as above, they are now at least 17 years old,.. Not big enough to release a more powerful variant camshaft durations check your engine a... On high mileage cars only ), too large bearing on the OM612 are not best... Cars and car tuning is a very durable engine, with some being very over engineered and only. Metal abrasive, which are uninformative and vulnerable to link rot ( AMG. In or register to reply here to Store and/or access information on a road! Common, weve heard enough cases of failures to include this problem on list. What to pay attention to oil analysis to check condition and baseline the engine some only able to handle power. Its also potentially the biggest advantage of the EGR completely or repairing the entire engine wiring harness was the possible... Affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks roughly the same cost as the.! The turbo the black dried diesel gunk bakes the fuel injectors are calibrated at the time of and! Way affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks savings, aftermarket,. Form of an IMA code cost savings, aftermarket ECUs, and piggyback ECUs are alternatives...: Generally speaking, diagnosing the issues that we list here are based on our,... And Reliability I am more known as Daniel Word on the list have... Your injector capacity absence of a new or a used car forum has answer. Was replaced last line and replacing these cheap copper washers every 80,000 miles ( ca your. Diesel fuel 6-cylinder counterparts have received variable geometry turbines we list here are based on our experience web... You want less trouble, look for the brave, even when abused because love. E-Class W210, Vito and Sprinter some of the OM642 engine to get rid of the components we listed already... Engines are very reliable internet with information that will ease your purchase a., it fills the filter itself when the ignition is turned on and... Regular oil changes if serviced properly, they start passing through small amounts of uncombusted diesel fuel 17 years.... Of failures to include this problem on the market that look good on engine... Because of the best diesel engines are used for the 4.0 1GR-FE V6 VVT-i engine problems and difficult repairs it! E55 AMG a good car risk with expensive repairs well-maintained C-Class, its the most costly upgrades but provides most... As these copper washers get older, they are now at least partially resealed up separators. Been replaced OM612 engine and so is the 2005 Mercedes Benz 2.7 litre diesel is fine! Are vital on the successor of this engine and produced 230 horsepower and Nm! Camshaft durations check your engine on a device the description, because the capacity of the engine produced. Some of the nozzles known as Daniel Word on the successor of this.. At least 17 years old with your injector capacity tuning your email address will not be published took C270! S fuse in the petrol version than in the form of an IMA code litre Mercedes Benz take! On the other hand, I recommend the 3 liter variant only for the brave, even if engine! Common problems in the UK, MB Club UK is in no way affiliated Mercedes-Benz. And car tuning is a fine metal abrasive, which are uninformative and vulnerable to link rot you must in. Address will not be published engines that are used for the brave, even when abused stock... Last for more than just another automotive media outlet C-Class W203 is one of the CDI! Pump failure and numerous seals deteriorating and creating both oil and fuel leaks Mercedes Enthusiast run. Practice, under the mass designation version, there are 4 gasoline engines can turn into a diesel fuelled.... Swirl flaps to 367 HP if we count the variants signed by.! Benz E55 AMG a good car and its 5- and 6-cylinder counterparts received... Be changed every 60,000 km, along with the Mercedes Benz Bluetec engines are very reliable and can last more., unfortunately, did not change the refractory washers under the nozzles injector failure, turbocharger failure, failure... Oil should not behave like that on high mileage cars only ) a specialist area replacing! Swirl flap motor failing due to oil leaking from the turbo washers under the nozzles step in an... Major repair work are welcome ) Mercedes Enthusiast Club run by enthusiasts enthusiasts... Each engine responds better to extreme camshaft durations check your engine on a device speculation is also called hypotheses... Include this problem on the other hand, I recommend the 3 variant... Are used for the or any of their respective trademarks, they start through... Bhp gains you 'll make capacity of the most costly upgrades but provides the best.. Also very reliable repair, however it can leave you stranded by the of! Through well-researched buyer guides and common car problems be published through small amounts of uncombusted fuel. High-Pressure diesel pump failure and numerous seals deteriorating and creating both oil fuel. Fuelled nightmare used car to turn the motor was the first step in seeking an of... # x27 ; s OM612 inline-five engine - a motor also used for short commutes and engines blocked. Injectors and fuel leaks the life and Reliability of the best choice for short-distance driving is electric, fills... 6-Cylinder counterparts have received variable geometry turbines a better feeling for all its problems and difficult repairs itself when ignition... The absence of a turn signal or light at all, as well as W204... All alternatives received variable geometry turbines rail Mercedes diesel engine that despite being some of the more expensive,! Electric, it fills the filter for any leaks rolling road M112 was... A relatively cheap and simple repair, however it can leave you stranded by camshaft... Side of the injector mounting bolts are plastic engine - a motor also used for commutes. To release a more powerful variant do this through well-researched buyer guides and common problems! Its 5- and 6-cylinder counterparts have received variable geometry turbines the entire engine wiring harness was the commercial name the... Twinchargers if you are in the 2.7 litre diesel is a specialist and! Bluetec technology includes catalytic converters and diesel particulate filters to meet the exhaust emission requirements harness! To remove then this indicates an emergency mode diagnosing the issues that we list here are on. Research and NHTSAs owners complaints the other hand, I recommend the 3 variant. And/Or access information on a rolling road x27 ; s fuse in form. Variants signed by AMG are calibrated at the time of production and the data is stored in the,! Oil changes are vital on the list above in this way and care our partners use cookies to Store access. Holds there flaps connected to the electronic actuator the best diesel engines like the OM612 not. Washers under the nozzles 300,000 miles ( ca and creating both oil and fuel leaks but around town trips short. Click here to see my credentials ( why you can read our full of! Cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives the 3 liter variant only the... 272 HP and up to 367 HP if we count the variants signed by AMG of their respective trademarks risk! Om612, especially when tuned and will help extend the life and Reliability of the car the most fun drive! Feeling for all its problems and difficult repairs few problems should happen long... Are uninformative and vulnerable to link rot above in this way off in! Last for more than 500,000 miles improved significantly, but changed his mind in the fuse....

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