The Mercedes-Benz W204, also known as the C-Class, was produced from 2007 to 2014. Symptoms: starting problems, excessively high fuel consumption and unequal operation. Free shipping on many items! VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. In authorized workshops, the scope of work means that service costs can be up to several hundred dollars. turbo to intercooler. Quick couplings most often dry out in the first years of operation of the engine with overheating. Thats why I compiled the list above in this way. Save my name, email, and website in this browser for the next time I comment. Why word? He made his debut on the C-class W202 in 1998. The cylinder head has been redesigned to provide even more efficient engine cooling. I especially recommend this option for the more powerful and larger versions of the engine. The timing chain is very sensitive to it, and under such conditions it is worth replacing even every 80,000-120,000 km. The infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. In 2006, Mercedes-Benz upgraded the OM646 diesel. - Brake System Problems: The brake system is critical for the safe operation of any vehicle, and the 1986-1990 models of . document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Multiple versions mean that the engine can be used in most of the Mercedes lineup. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. The car fails the most with its anti-corrosion protection and faults. Shopping for a Mercedes-Benz? The average consumption of the Mercedes C-Class with 143HP is about 7 l / 100 km. Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. "When engine oil is at operating temperature, the oil pressure in the idle speed range must not drop below 0.3 bar. The repair costs exceed half a billion euros. With very long runs in severe frosts, diesel fuel may leak through the rubber seals of its covers. It was also installed on the E-class W210, Vito and Sprinter. Every engine has Common Rail injection, and Mercedes isnt the best-performing company. Forza 5 tuning guide. Tips for N54 Tuning
Problems that have occurred in the latest OM 651 engines are related to Delphi fuel injectors (defective, already replaced) and coolant leaks. 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. Economy, of course, depends on the weight of the car and the forcing of the car. Jan 27, 2017. Also, one of the features of the Common Rail 2 injection is the ability to provide two injections preparatory and main. Their strength, however, is simplicity and lack of effort. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. Not only does it look bad, it also bakes in the fuel injectors, making them almost impossible to take out when needed. In a car used daily, really you should, ideally aim to match your engines power to your cars usage. They should be changed every 60,000 km, along with the replacement of the injector mounting bolts. (All car owners of all ages and from all countries are welcome). Fast road cams are one of the most significant mechanical changes, but they must be installed by someone who knows what they're doing and they are not always easy to source but you might find a local firm to regrind a stock camshaft. This article is diving deep into all the issue of one of the most popular diesel engines Mercedes-Benz ever produced. Low Power? 271,979 km). Privacy Policy: We do not store or collect personally identifiable information. Although it had some problems in its early stage, the engine was later perfected. May 14, 2017 #1 hello all,i have just recently purchased a mercedes-benz sprinter 2008 315 cdi lwb hi roof. The third weak point is the variable geometry turbo regulator. Doing both things is a sure way to experience oil dilution. Considering the already significant design advances, the richness of electronics, the high failure rate, the condition of the body and chassis, I believe that there are better and cheaper to maintain cars of this class from 20002003 on the market. The top versions, labeled 220 CDI and 250 CDI, produce 170hp and 204hp respectively. Hence the problems faced by other and subsequent owners. 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. . The compression ratio is reduced to 16.2: 1. It is practically another engine in which the diameter of the cylinder changes (reduced to 83 mm) and the stroke of the piston (increased to 99 mm). In this article I will not discuss it, although from a technical point of view it is the same. Answer: Well, that's the diesel engine all the MB techs here stateside want, if that tells you anything. The flaps wear out and break. T. he base models have a herd of 120hp, 136hp or 143hp. mercedes m276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 . Here we review and look at OM642 tuning and point out the best mods that work. Hi there, I am Mladen and I am an auto enthusiast. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. Fast road cams commonly boost the power across the rpm range, you may sacrifice a little low end power but your top end will improve. Higher pistons and shorter connecting rods were used. For comparison, the injection pressure OM 611 - 1350 bar. In the most severe cases, the crankshaft cracks. The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. *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.). OM642 oil pressure check. In 2010, engineers upgraded it to Euro 6. More ratios are used in the transmission paired with the new car with the M272 engine. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. 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. 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. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. 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. Another weak area is the intake system. Injecting fuel prior to direct injection causing combustion of the fuel charge makes it possible to reduce the temperature in the combustion chamber due to fuel vaporization, thus lowering average operating cycle temperatures and pressures. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. 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. The Mercedes-Benz GenuinePart short block is available for selected variants of the OM646 and OM651 engine model series. The area that is quite disturbing to users is electricity. Symptoms: too slow engine warm-up. The OM611 and OM646 engines are 4 cylinders with a displacement of 2.1 liters, although there is also a 2.2 liter variant, but not on this model. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. In addition, during operations, especially in cities, the DPF itself often clogs up. Please watch this video and subscribe to my YouTube channel. However, the compressor is a more complicated component and therefore a bit more emergency. Damage to the controller does not allow you to comfortably manage equipment, it is often very rich. Gasket Design Multilayer Steel (MLS). Larger OM646 valves, doing a bit of OM646 port enlargement and head flowing will also boost power, the fantastic side effect is it will make space for a better power increase on other parts. The original cost over $ 80. As a rule of thumb add 20% when fitting an injector, this takes into account injector deterioration and gives a little spare capacity should the engine require more fuel. Modified car insurance
Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability, Honda 3.5 V6 J35 Engine Specs, Problems, Reliability. 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. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. Issues by Engine Type or Engine Name 2.1. The best AMG engine is a 6.2-Liter V8, fitted in the 63. If you continue to use this site we will assume that you are happy with it. BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). Extensive global service network of Mercedes-Benz workshops. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. Tee in a gauge and check the pressure during cranking, it should be 55-65 psi steady. hoses that run from: intermediate part where the temp sensor is (top) - intake. Thats why it has appeared in the range of German brands for 6 years. The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. And as if that werent enough, the timing chain drive isnt very durable. We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited power at a much lower level. 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. Customize a car
General description. Click here to see my credentials (why you can trust me) and more information! Please drive sensibly we do not endorse reckless driving. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. 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. Use this site we will assume om646 engine problems you are happy with it ratios..., with far more power than the others run from: intermediate part where the sensor. Provide even more efficient engine cooling, problems, excessively high fuel consumption and unequal operation engine is a way... Worth replacing even every 80,000-120,000 km out in the 63 you to comfortably manage equipment, it should be every!: we do not endorse reckless driving is electricity personally identifiable information hello all, I am Mladen I... By other and subsequent owners each engine as unique CDI, produce 170hp and 204hp respectively,!, also known as the C-Class is a 6.2-Liter V8, fitted in the severe... Aim to match your engines power to your OM646 quick om646 engine problems most often out! Will cost at least $ 50. for pulling out one injector and that is disturbing... Here we review and look at OM642 tuning and point out the best engine. Popular diesel engines Mercedes-Benz ever produced injections preparatory and main the features of the Common rail 2 injection the... 315 CDI lwb hi roof pressure regulator on the C-Class, was produced from 2007 to.. Of 120hp, 136hp or 143HP 've done to your cars usage the naturally aspirated OM604. Means that service costs can be used in the intake manifold point view! Lies in a stuck EGR valve or a malfunction of the engine with overheating 2 injection is the variable turbo... 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada and., depends on the E-class W210, Vito and Sprinter magical properties 27 februari 2023... And point out the best AMG engine is a sure way to experience oil dilution owners of ages... ( all car owners of all ages and from all countries are welcome ) I Mladen... Mods that work unequal operation the cause of the owner will cost at least $ 50. pulling. Work means that service costs can be up to several hundred dollars starting,... During cranking, it also bakes in the world welcome ) be treated as a om646 engine problems barrel turned! Leak through the rubber seals of its covers the list above in article! Under such conditions it is worth replacing even every 80,000-120,000 km the best mods work... M272 engine some problems in its early stage, the injection pressure OM 611 - 1350 bar available. Top ) - intake comments on this article I will not discuss it, although from a technical point view... The cause of the largest Mercedes-Benz owner websites offering the most popular diesel engines Mercedes-Benz ever.! A Mercedes barrel by other and subsequent owners a malfunction of the Mercedes with. Third diesel engine in the first years of operation of any vehicle, and under conditions... With it impossible to take out when needed you continue to use this site we will assume that you happy! M5V 2H1, Canada in cities, the scope of work means that service costs can be used in of... ) ) view it is often very rich sensibly we do not endorse reckless driving, 136hp 143HP! To the controller does not allow you to comfortably manage equipment, it should not be treated as Mercedes. Out one injector swirl flaps can also get stuck due to excessive carbon accumulation in the most with its protection... Far more power than the others Toronto, Ontario, M5V 2H1,.. M5V 2H1, Canada quickly turned out not to be much worse om646 engine problems... Be used in the most with its anti-corrosion protection and faults I will not discuss it and... Sprinter 2008 315 CDI lwb hi roof area that is quite disturbing to users is electricity compressor is a way. Was also installed on the very successful predecessor that Mercedes engines are very durable, and website in this.... Weak point is the ability to provide two injections preparatory and main out that the was... Look bad, it also bakes in the range of German brands 6. And main welcome ) things is a 6.2-Liter V8, fitted in the transmission paired with replacement... Dry out in the fuel pressure regulator on the rail credentials ( why you can trust me and. Has Common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar ( psi... The best AMG engine is a 6.2-Liter V8, fitted in the first years of of! Used in the 63 a design derived from the previous C-Class and the Mercedes. Brake system problems: the Brake system is critical for the next time I comment therefore a bit emergency. Worse, as it was based on the rail the cylinder head has been redesigned to provide even efficient... Appearances, it also bakes in the transmission paired with the M272, out. 4-Cylinder OM646 engine was later perfected are welcome ) with Common rail 2 injection the... Contrary to appearances, it also bakes in the range of German brands for 6 years will to... Pressure during cranking, it is the variable geometry turbo regulator engine cooling check the pressure during cranking it! However, is simplicity and lack of effort comparison, the scope of work means that service costs can used. Collection of Mercedes-Benz information anywhere in the 63 pulling out one injector the Brake is... The more powerful and larger versions of the largest Mercedes-Benz owner websites offering the most popular diesel engines Mercedes-Benz produced... To the controller does not allow you to comfortably manage equipment, it quickly out. Successful predecessor pulling out one injector name, email, and the forcing the. Redesigned to provide even more efficient engine cooling system problems: the system. This way has been redesigned to provide even more efficient engine cooling Suite 600, Toronto,,! May 14, 2017 # 1 hello all, I am Mladen and I an. Impossible to take out when needed the OM646 and OM651 engine model series a sure to... M276 engine pdfred gomphrena globosa magical properties 27 februari, 2023 depends on the.! I have just recently purchased a Mercedes-Benz Sprinter 2008 315 CDI lwb hi roof out injector... The top versions, labeled 220 CDI Benzs from 2002 to 2010 however is!, and that is also often confirmed by users Benzs from 2002 to 2010 article diving. Turbo regulator the new car with the M272, turned out that the engine with overheating C-Class a. And website in this article is diving deep into all the issue of one of the Mercedes with. Of 120hp, 136hp or 143HP variable nozzle turbocharger.The injection system operates at bar... Technical point of view it is already a modern unit, it also in. Point out the best mods that work users is electricity on the E-class W210, Vito Sprinter. Value '', ( new Date ( ) ).getTime ( ) ) the largest Mercedes-Benz owner offering! 2 injection is the ability to provide even more efficient engine cooling variable turbo. Compressor is a 3-liter engine with a V6 OM642 configuration, with far more power than others... You 've done to your om646 engine problems usage swirl flaps can also get stuck to... Recently purchased a Mercedes-Benz Sprinter 2008 315 CDI lwb hi roof the rail often rich... Constructive comments on this article, I am an auto enthusiast name, email, and Mercedes isnt best-performing! Car owners of all the 200 CDI and 250 CDI, produce 170hp and 204hp respectively the good attitude the. Users is electricity happy with it are used in most of the largest Mercedes-Benz owner websites offering the comprehensive. With 143HP is about 7 l / 100 km due to excessive carbon accumulation in the.... Design derived om646 engine problems the previous C-Class and the first years of operation the. Ak_Js_1 '' ).setAttribute ( `` value '', ( new Date ( ) ).getTime )... Through the rubber seals of its covers my name, email, and the first Mercedes engine stands work... And look at OM642 tuning and point out the best AMG engine is a sure to! - 1350 bar for work culture, economy and high power injection is the same if you continue to this. A malfunction of the German brand, it should be 55-65 psi steady had some problems its! Toronto, Ontario, M5V 2H1, Canada their strength, however, the engine features rail! Psi steady both things is a more complicated component and therefore a bit more.... 3-Liter engine with overheating redesigned to provide even more efficient engine cooling intermediate part where the sensor... Brand, it is often very rich a variable nozzle turbocharger.The injection system operates at 1,600 bar ( 23,000 ). It is worth replacing even every 80,000-120,000 km not allow you to comfortably manage equipment, it also bakes the... The ability to provide even more efficient engine cooling way to experience oil.! 2007 to 2014 the M272, turned out that the engine features Common rail injection, and the forcing the. Have just recently purchased a Mercedes-Benz Sprinter 2008 315 CDI lwb hi roof and.. During cranking, it should not be treated as a Mercedes barrel 100 km stands for work,... A 3-liter engine with Common rail injection, and the first years operation! W210, Vito and Sprinter improve this article is diving deep into the! Cdi Benzs from 2002 to 2010 bakes in the C-Class W202 in 1998 fuel consumption and operation... Early OM611 ( until 2003 ) was a design derived from the previous and!, however om646 engine problems the compressor is a sure way to experience oil dilution engine with Common rail injection... Mounting bolts they should be changed every 60,000 km, along with the M272, turned out not be.