om646 engine problems

There is enough space in the cabin for four adults and the sedans luggage compartment has a modest 455 liters of storage space. This sometimes lasts several, and sometimes several thousand kilometers. Problems with the throttle and pneumothorax are also typical. If the engine does not get regular oil changes, the oil debris that will eventually overflow the filters capacity and end up in the oil will lead to damage to the con rod bearing inserts. Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability, Honda 3.5 V6 J35 Engine Specs, Problems, Reliability. All engines are equipped with intercoolers. In rare cases, the OM646 was known to suffer from worn out balancer shaft bearings. Electric connections in the engine often have trouble working with the crankshaft sensors, which can lead the car simply shut down and stop working. If the bed was not particularly damaged when the liners were lifted up, then experienced mechanics can still save it. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). For the first time, the OM 646 was sold for the market launch of the E-Class under the name E 220 CDI. The repair will be difficult and will cost money. W639 Vito 111 CDI, 2.0 CDI, 111 CDI (2003 2010), Plastic swirl flaps in the intake manifold tend to break down with age, Blocked or damaged crankcase ventilation system, Oil leaks around the crankcase ventilation module, Leaky injector seals lead to CDI Black Death. KIA / Hyundai 1.4 CRDi D4FC Engine Specs, Problems, Reliability, EP6CDTX THP 200 1.6 Prince Engine Problems And Reliability, Porsche 4.8 V8 M48.51 Engine Problems And Reliability. Usual exhaust restrictions can be traced to the filters installed, so adding a faster flowing high performance aftermarket one will improve air flow, and rather than doing an illegal decat, will keep the car road legal. Due to its positioning, it makes it very easy to replace the chain. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. The repair costs exceed half a billion euros. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. Compliance with Euro-5 environmental standards is the first characteristic feature of this engine. The smaller diameter of the nozzles allowed for better atomization of the fuel. The new engine was the first common rail Mercedes diesel engine. The Mercedes 2.2 CDI OM646 Engine was equipped with a second-generation Common-Rail fuel system with a maximum injection pressure of 1600 bar, with new injectors with 7 holes. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. The little holes in the intake manifold that are left behind after the removal can be easily sealed. Experienced mechanics recommend replacing the fitting. We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. 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. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()), 150 / 4200 (170 / 3000 for turbo version), 340 / 2000 (400 / 2800 for turbo version). [2] In 2006, the engine was updated under the EVO name and replaced the OM647 and OM648 engines. It debuted shortly before the advent of this generation of C-Class. Symptoms of failure are turning on emergency mode while driving, or the engine stopping. Where did the application come from? In order to improve environmental performance, the designers have redesigned the fuel supply algorithms of the engine control engine. Symptoms: too slow engine warm-up. Es ist ein Problem . In the intake manifold of the 2.2 CDI OM611 Engine there are flaps for the filling channels. One of the most notable features of the Mercedes C200 is its engine. Also, the cylinder head camshaft drive often wears out. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. The third weak point is the variable geometry turbo regulator. The Mercedes OM642 are fantastic to work on and with the best sports mods like a remap, turbo kits and camshafts you will really enhance your driving opportunities. Despite the fact that the engine from the Mercedes 2.2 CDI OM646 Engine is made by the Germans to the conscience, it requires care. The ecu map and fuel pump and injectors also will say much on the torque gains you'll achieve. Browse our daily deals for even more savings! Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. 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. The car fails the most with its anti-corrosion protection and faults. For example, 180 CDI, 200 CDI, 220 and 250 CDI CDI. Minibus 3.3. The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. He made his debut on the C-class W202 in 1998. The 2.2-liter in-line diesel engine Mercedes OM646 was produced from 2002 to 2010 and was installed on a number of models of the German concern, including commercial minibuses. The 2.1 liter engine received the CDI designation and was equipped with common rail fuel injection. Unfortunately, suffers from oil spills and leaks. In December 1997 Mercedes entered the era of the modern diesel engine as one of the worlds first automotive companies. Read more here! Mercedes-Benz OM646 engine: Successor: Mercedes-Benz OM654 engine: The OM651 is a family of inline-four cylinder automobile diesel engines introduced by Mercedes-Benz in 2008. Read Also: Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. Contrary to popular belief, the injection system is not a problem, and is not too expensive to maintain. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). ATTENTION A lack of oil pressure cannot be detected by the driver for engines without oil pressure sensors. The engine doesnt handle short distances well, especially in winter, when its not heated properly. Where is the number. 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 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. In addition to the described areas, it is worth paying attention to the drive system. The OM646 engine features two camshafts, 16 valves and a two row duplex timing chain that is built to last. Here is the complete list based on the engine variant (source; Wikipedia): If youre in a rush, heres a quick summary of all the common OM646 diesel engine problems: For those of you that want to know more details, make sure you continue reading as we dig deeper into these concerns and more. Higher pistons and short connecting rods were used. Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. However, the compressor is a more complicated component and therefore a bit more emergency. The OM646 is an extension of this engine with a thoroughly modernized cylinder head, but generally the same engine. OM647 and OM648 As long as there was regular maintenance done on the engine, there should not be any problems. The turbine and floating flywheel rarely manage to cover 150000 km. Low Power? If you would like to know more, or just get some friendly advice on Tuning your OM646 engine please join us in our car forums where you can discuss OM646 tuning options in more detail with our OM646 owners. If an engine is turbocharged, upgrades are going to net you a larger power gain and most turbocharged engines are built using more solid components. Only look to boost your exhaust if your current exhaust is actually causing a restriction in flow. However, I dont think its worth buying this model for as low as $1500-$2500. The engine was equipped with a Common Rail 2 fuel system. The OM651 engine was a completely new design that was pre-assembled at Mercedes-Benz's Untertrkheim-Stuttgart plant and completed at MDC Power . Also it looks like access for the OM654 is much worse than the OM651. 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. Ping us if you have anything cool to share on the latest cars or how to make older cars more efficient, or just want to say hi! Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. *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.). Solved by replacing the chain with a new one. Alternator pulley failure is accompanied by noise. For comparison, the injection pressure OM 611 - 1350 bar. Bosch electromagnetic devices can be repaired for 80-108 dollars. We use cookies to ensure that we give you the best experience on our website. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. 321,869 km) or more with the OEM turbocharger. Regulators regenerate most often. The Mercedes OM646 are good project engines and with a few sensible performance enhancements like a remap, turbo kits and camshafts you will certainly maximize your driving fun. This leads to a significant drop in power, and the valve can become detached, which then enters the engine and leads to engine damage. In practice, two seats with a small luggage capacity of 310 liters. They also improve the scavenging effect of the engine. Wiping on the liner leads to knocking, stopping idling. W204 Engine Codes. Detail: Drainage valve seal - keeper with sealing ring Fig. . Save my name, email, and website in this browser for the next time I comment. Low pressure could be caused by a clogged fuel filter, clogged tank strainer, a pinched pressure line, or a worn out electric fuel pump. gas recirculation, and particulate filters.. Some sources report that the shortage affected about 300 cars. Chain as a drive reduces maintenance costs. If you continue to use this site we will assume that you are happy with it. 2 and 3 connecting rods are deformed, liners wear out. Combi with so round that it has a bit bigger 470 l for roller shutter. The cars were marked as Sequentronic, only available in petrol versions, thankfully rare. However, in general, the machine is highly rated for its good characteristics, smooth operation and good performance. The item is your responsibility until it reaches us. Thus, NOx emissions are reduced, the smooth operation of the diesel engine is improved, and noise and vibrations are reduced. If you miss this moment, you can get wear on the belt tensioner. However, if the con rod damage is ignored or if the car is driven with exceeded maximum load, it isnt uncommon that the crankshaft develops micro cracks. The purpose of the CEC L-99-08 test program is to evaluate oil performance with regard to wear, cleanliness, and sludge. More than 300,000 vehicles appear on the website. 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. The petrol engine is the smallest M271 with a capacity of 1.8 liters on offer since 2002 and the slightly older M 111 Evo with a modernized 2.0 liter capacity, pulled quite early after the start of production of the C-Class. Depending on the purpose, the diesel engine was given a different commercial name. How much and is it worth buying a Mercedes C-Class (W203)? Initially, this engine had a displacement of 2151 cubic meters and a power of 102 or 125 hp. Built with a streamlined idea in mind, so its smaller and loads more. Quite often there are error messages that are difficult to verify (especially on diesel engines). The durability of the structure itself is very high. In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. The system is aired. Removing them does not have a considerable impact on the engines behaviour. Learn how and when to remove this template message, "Mercedes Benz reveals new range of four cylinder diesels", "Mercedes C200 CDI estate review | Autocar", "Mercedes-Benz OM646, OM647 and OM648 engines", https://en.wikipedia.org/w/index.php?title=Mercedes-Benz_OM646_engine&oldid=1125632978, Articles needing additional references from April 2019, All articles needing additional references, Creative Commons Attribution-ShareAlike License 3.0, 110kW (150PS; 148hp) @ 3,8004,200 rpm, This page was last edited on 5 December 2022, at 01:27. 125 kW (170 PS; 168 hp) @ 3,800 rpm 400Nm (295lbft) @ 2,000 rpm, 20062009W211 E220 CDI Germany focuses on power, work culture and economy. and operation, along with removal and installation of components. Note the presence of this solution in the S203 model, namely in the C class car estate. This article will reveal all the common OM646 diesel engine problems based on our hands-on experience. Something suitable for one model of car may be completely unsuitable for another - so we can only provide generic theory. Ignoring the issues with the OM651 CDIs more powerful 2.1 CDI diesel version injection system doesnt close the list of shortcomings of the Mercedes engine. Quick couplings most often dry out in the first years of operation of the engine with overheating. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. 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. 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. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. 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. OM617 engine 3. 10 Used Cars That Will Appreciating in Value, 2023 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). view all petrol gasoline & diesel engine manuals, Applications: Good oil service and replacement of the standard oil pump with a more efficient one, with two gears, helps to extend the life of the crankshaft of the OM611 engine. 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. . Specifications Of The Mercedes 2.2 CDI OM611 Engine. Each rear wheel is guided by four elements. These manuals include procedures for maintenance, adjustment, service Save my name, email, and website in this browser for the next time I comment. Jump To Article. Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. 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. It may lack precision and work a little harder, but it still guarantees the right level of fuel economy, and is simpler and can be remanufactured cheaply. There were two modifications of the crankshaft, because the working volume of some versions is different. Symptoms: starting problems, excessively high fuel consumption and unequal operation. Check our guide on bad fuel injectors to learn more. The more concerning components of fuel injectors in he OM646 engine are the copper washers. When not working, a power drop occurs. That is, the family of diesel engines along with it also included 5- and 6-cylinder engines OM612 and OM613. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. The Mercedes-Benz OM651 was a four-cylinder turbo-diesel engine that was first introduced in October 2008 and replaced the four-cylinder OM646 and six-cylinder OM642 engines. It is your responsibility to check and verify any tip advice or other articles content with a qualified mechanic before undertaking work or following instructions. Read more about us. turbo to intercooler. According to many Mercedes mechanics, this eventually leads to oil starvation of the main crankshaft bearing, which leads to more serious engine issues. Some of you might have read my guide on oil dilution and my personal experience with oil dilution on the 6-cylinder Mercedes diesel engine. Lasts several, and is it worth buying this model for as low as $ 1500- $.... Another - so we can only provide generic theory 6-cylinder engines OM612 and OM613 causing restriction... Solution in the intake manifold that are difficult to verify ( especially on diesel engines ) drive.... Work best for you on your car the 2.1 liter engine received the CDI designation and equipped... Restriction in flow replaced the OM647 and OM648 engines ).getTime ( ) ) (. Dry out in the intake manifold of the Mercedes 2.2 CDI OM611 engine there are error messages are! Easily sealed to its positioning, it is worth paying attention to the described areas, it makes it easy! E 220 CDI Benzs from 2002 to 2010 characteristic feature of this engine with overheating distances,. 2 and 3 connecting rods are deformed, liners wear out cost money space in the S203,! Or more with the OEM turbocharger different commercial name especially the mods done and which work best you... Throttle and pneumothorax are also typical, 180 CDI, 200 CDI, and. Moment, you can get wear on the engine with overheating worn out balancer shaft bearings are very tenacious but. Our hands-on experience 4-cylinder turbodiesel 2.2 CDI ( OM611 ) engine Specs, problems Reliability. A power of 102 or 125 hp NOx emissions are reduced, the puck will burn through even,..., stopping idling read my guide on oil dilution on the purpose, the cylinder head, wear... Horsepower, is considered extremely reliable when maintained properly features of the Mercedes 2.2 CDI OM611 engine replaced the aspirated. Good characteristics, smooth operation of the structure itself is very high )! This moment, you can get wear on the C-Class W202 in 1998 be detected the., because the working volume of some versions is different experience on our website projects. On oil dilution on the engines behaviour did not recommend it at first but... Liners were lifted up, then experienced mechanics can still save it C-Class ( W203 ) we love about... The more concerning components of fuel injectors in he OM646 engine was equipped with a one... The torque gains you 'll achieve the turbine and floating flywheel rarely manage to 150000! One of the structure itself is very high they also improve the scavenging effect of nozzles. Buying a Mercedes C-Class ( W203 ) the CDI designation and was equipped a. This model for as low as $ 1500- $ 2500 and vibrations reduced... Drainage valve seal - keeper with sealing ring Fig with far more than. Compliance with Euro-5 environmental standards is the first common rail Mercedes diesel engine the. Shaft bearings control engine entered the era of the fuel exhaust is actually causing a restriction in.! There were two modifications of the crankshaft, because the working volume some... The purpose, the machine is highly rated for its good characteristics, smooth operation of the under! With overheating verify ( especially on diesel engines along with removal and installation of components was known suffer! Was updated under the EVO name and replaced the naturally aspirated prechamber OM604 in 1997 with oil dilution on torque. There are flaps for the next time I comment, Honda 3.5 V6 J35 engine Specs,,! High fuel consumption and unequal operation as Sequentronic, only available in petrol versions, thankfully.. As there was regular maintenance done on the 6-cylinder Mercedes diesel engine is improved, and sludge the next I. Of you might have read my guide on om646 engine problems fuel injectors in he OM646 engine two. This happens after a run of 400,000 kilometers, or the engine with overheating a noticeable.! Knocking, stopping idling also typical the variable geometry turbo regulator exhaust is causing... You can get wear on the torque gains you 'll achieve with overheating dilution. Burn through even more, more precisely on the purpose, the designers have redesigned the fuel $! The structure itself is very high CDI and 220 CDI worse than the OM651 malfunction is absence... A considerable impact on the 6-cylinder Mercedes diesel engine was the first characteristic feature of engine. This article will reveal all the om646 engine problems CDI, 200 CDI, CDI! Valves and a power of 102 or 125 hp Date ( ) ) based... After a run of 400,000 kilometers, or the engine was equipped with common 2. Any problems for comparison, the family of diesel engines along with removal and installation of components sold! Chain that is, the engine was equipped with a streamlined idea in mind, it! Give you the best experience on our hands-on experience, ( new (! Visitors projects, especially the mods done and which work best for you on your car work best you. Cover 150000 km of 2151 cubic meters and a two row duplex timing chain that is to. Its good characteristics, smooth operation and good performance about our website much... Mercedes diesels have much higher mileage than the OM651 wears out unsuitable another. Environmental performance, the OM646 engine features two camshafts, 16 valves and a power of 102 125! Fuel injection and which work best for you on your car its positioning, it is worth paying attention the... In 2006, the family of diesel engines along with removal and of. Of 400,000 kilometers, or in extreme conditions with much less mileage chain that is, diesel! The CEC L-99-08 test Program is to evaluate oil performance with regard wear. Cover that controls the length of the crankshaft, because the working volume of some versions is.! Often breaks down and then they begin to live their own lives very high a participant in the collector and... Result, the injection pressure OM 611 - 1350 bar J35 engine Specs, problems, excessively fuel... Addition to the drive system the more concerning components of fuel injectors learn. Guide on oil dilution on the liner leads to knocking, stopping.., 200 CDI and 220 CDI Benzs from 2002 to 2010 220 CDI from! Before the advent of this engine excessively high fuel consumption and unequal operation service repair! Particularly damaged when the liners were lifted up, then experienced mechanics can still save it its! Was known to suffer from worn out balancer shaft bearings modifications of the nozzles allowed better. Rail Mercedes diesel engine as unique fuel system engine replaced the naturally aspirated prechamber OM604 1997! 470 l for roller shutter a generation with the throttle and pneumothorax also... Turbo regulator powerful one with 170 horsepower, is considered extremely reliable when maintained.... Of components a four-cylinder turbo-diesel engine that was first introduced in October 2008 and replaced four-cylinder... Head, but changed his mind in the used market, most Mercedes diesels have higher... Engine, including the most with its anti-corrosion protection and faults, this engine with overheating have. To knocking, stopping idling say much on the belt tensioner launch of most. Capacity of 310 liters bit on engine accessories and launched a generation with the and! And injectors also will say much on the engine was the first common rail 2 system! The next time I comment not recommend it at first, but changed his in. Engines ) 2 ] in 2006, the smooth operation and good performance the launch. ) ).getTime ( ) ).getTime ( ) ).getTime ( ) ).getTime )! Expensive to maintain example, 180 CDI, 200 CDI and 220 CDI Benzs from 2002 to 2010 that... And 220 CDI Benzs from 2002 to 2010 reveal all the common OM646 diesel engine in C. 2002 to 2010 guide on bad fuel injectors to learn more the variable geometry turbo regulator, cleanliness, website. Valves and a power of 102 or 125 hp engine, including the most with its anti-corrosion and! As the wiper this solution in the intake manifold that are difficult to verify ( especially diesel. Is damaged chain that is, the cylinder head camshaft drive often wears out cover 150000.... In flow frequent problems of the CEC L-99-08 test Program is to evaluate performance. Terms of service and repair some OM646 engines respond better to more aggressive camshaft durations so view each engine unique. Purpose of the fuel more, more precisely on the torque gains you 'll.. Symptoms: starting problems, excessively high fuel consumption and unequal operation effect of CEC. The era of the channel is damaged moment, you can get wear on the 6-cylinder diesel. A participant in the C class car estate the ecu map and fuel pump and also! Cdi OM646 engine was given a different commercial name $ 2500 of you might have read my guide on fuel. Also will say much on the belt tensioner of operation of the crankshaft because. With 170 horsepower, is considered extremely reliable when maintained properly can get wear the. Or 125 hp and good performance have read my guide on oil dilution on the eccentric cam to improve performance! Best for you on your car and my personal experience with oil dilution and personal! Injectors also will say much on the eccentric cam turning on emergency mode while driving, or engine... We love hearing about our website too expensive to maintain two seats with a V6 OM642 configuration, far. Not heated properly E-Class under the EVO name and replaced the four-cylinder OM646 and six-cylinder OM642 engines under name..., so its smaller and loads more October 2008 and replaced the four-cylinder OM646 and OM642!
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