Less risky in the petrol version than in the W204 successor. In a revamped car, it is slightly smaller in size, not only because of its age, but also because of its improved quality. This oil is leaking in the tensioner area. Shortly after the start of production of the new 2,1-liter turbo diesel, it was discovered that the Delphi piezo nozzles were defective. Technical Data. Unfortunately, this is also a series of problems, some of which end in service actions. 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. We see many tuners spending a loads of money on turbo upgrades on the OM646 only to experience the engine block go up in smoke just after it's completed. Till this day, there are many of these engines running smoothly and defending its reputation for being one of the most reliable and durable diesel engines in the past 20 years. When the throttle is operated, the oil pressure must rise without any delay and be at least 3 bar at an engine speed of 3000 rpm." So at 3000rpm the oil pressure should be at least 3 bar. Design. We have tips on removing carbon build up. They are all united by cast-iron blocks, aluminum cylinder heads with 4 valves per cylinder (recall that it was Daimler engineers who created the first mass-produced diesel engine with 4 valves per cylinder OM606 in 1993) and duplex chains in the timing drive. AMG vehicles from 2007 to 2014. The system is aired. Fun fact: One of the team members behind Lifeonfour.co still runs this engine in his 2008 W204 C-Class with 0 issues at 169,000 miles (ca. If the bed was not particularly damaged when the liners were lifted up, then experienced mechanics can still save it. 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. The OM611 engine does not have a high work culture, but is distinguished by acceptable economy and high durability. In terms of issues, there were none that would occur frequently. It was supposed to bring about a revolution, and it caused important problems with the injectors and the time chain. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. Hi Guys, This ones got me pulling my hair out, and there isn't a lot of that :frown 2009 model year 906 633 Sprinter with L4 2.2 CDI Engine OM646-986 Mileage = 128,000 Came in a while back, needs a lot of Cranking then gradually fires up, real bad when cold, still not good hot. Solenoid valves are used to control the turbocharger and EGR valve (old engine 2.1). If the washer burns out, then gases will break through into the channel under the nozzle and over time, soot and soot will simply cement the nozzle in the cylinder head. And while the parts themselves can be bought at auto stores for as little as $ 135, the repairs are quite expensive. OM601 engine 2.2. Where is the number. The OM646 engine is sold under the 200 CDI and 220 CDI designation and features an electric fuel pump, exhaust gas recirculation, particulate filters,[1] and Euro 4 emission standard compliance (from 2003). Jump To Article. And the regulator in the ECU allows you to accurately dose the fuel, avoiding overflow. Bearing wear leads to oil leakage into the cold or hot part. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these OM646 tuning guides which get regular updates and revisions. At least have to be careful, but also because of the more expensive parts, I do not recommend it. Symptoms: too slow engine warm-up. Although it worked fine initially, in most cases there were problems with shifting gears after many years. Detail: Drainage valve seal - keeper with sealing ring Fig. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. The engine doesnt handle short distances well, especially in winter, when its not heated properly. The camshaft profile plays a big part in the engines power output so camshaft upgrades make quite a large difference. The elements installed on the block were very emergency. To find out more about how Google uses personal data when consent is given see Google Policies And see our privacy policies .com site .co.uk site for more information on steps taken to protect your data and how it is used. Even in the early nineties, Mercedes diesel engines were in a class of their own. The third weak point is the variable geometry turbo regulator. Its even worse when you have to replace the entire drive with a variable phase wheel. If you continue to use this site we will assume that you are happy with it. The new engine was the first common rail Mercedes diesel engine. Its the engine that gives the car the most fun to drive, but its also potentially the biggest risk with expensive repairs. W204 Engine Codes. Then you will pay about $500 for parts alone. The system is capricious. If you miss this moment, you can get wear on the belt tensioner. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. It was also installed on the E-class W210, Vito and Sprinter. The Mercedes-Benz Sprinter (W906) repair manual, the spare parts catalog, and the Mercedes Sprinter operating and maintenance manual (B906) from 2006 to 2013. release.The models were equipped with diesel engines OM651.955 / 956/957 (2,2 l Common Rail), OM646.984 / 985/986/989/990 (2.2 L Common Rail), OM642.896 / 992 (3.0 L Common Rail). Solved by installing a new pulley. However, they can harden, jam, and the holes under their axles are broken, due to which soot and oil from the intake seeps out. The Mercedes-Benz OM648 engine is a 3.2 Litre, straight-6 4 valves per cylinder, cast iron block diesel engine manufactured by the Mercedes-Benz division of Daimler AG as a replacement for the previous Mercedes-Benz inline-5 and -6 engines.. 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. 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. 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. Don't dismiss the need increase the fuel delivery when you are increasing the power - it makes the car more thirsty. These four seals can be re. Since a special stand is required. We use cookies to ensure that we give you the best experience on our website. The area that is quite disturbing to users is electricity. 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. This entry was It was a 2.1 CDI engine marked OM 611 with power from 82 to 204 hp. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()), 150 / 4200 (170 / 3000 for turbo version), 340 / 2000 (400 / 2800 for turbo version). Such an injection is capable of delivering 1600 bar. In the face of a major problem, Mercedes had no choice they had to dutifully replace any faulty injectors with new ones as part of its servicing action. Motorsport and race cams, boost the top end band but as a result the car will not idle smoothly and low end power nearly always suffers. Were heading towards problems that only occur on exceptionally high mileage vehicles or on vehicles that were not maintained properly. Modified car insurance 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. Each rear wheel is guided by four elements. In our experience, a regularly maintained OM646 engine should have no issues reaching 200,000 miles (ca. How much and is it worth buying a Mercedes C-Class (W203)? We do this through well-researched buyer guides and common car problems. 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. 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. 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. In short, it is worth choosing a smaller engine than a diesel engine, as it is cheaper to service, and there are no disadvantages such as low head power, although such defects are usually found in larger cars. The problems get complicated after the appearance of the OM651 series of engines. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. It most often crashes in the vehicle. 125 kW (170 PS; 168 hp) @ 3,800 rpm 400Nm (295lbft) @ 2,000 rpm, 20062009W211 E220 CDI Loves high-quality and clean fuel. Uncontrolled leakage of antifreeze can cause the engine to overheat. The average consumption of the Mercedes C-Class with 143HP is about 7 l / 100 km. 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. 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. Panel van 3.2. Some of the most common engine names include the M271, M111, and OM611, each with its own set of strengths and weaknesses. Replacement needed. In a direct comparison with its predecessor, consumption has been further reduced and the engine . Important in the description, because the capacity of the engine is less important than the type. Contrary to popular belief, the injection system is not a problem, and is not too expensive to maintain. 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 OM651 engine was a completely new design that was pre-assembled at Mercedes-Benz's Untertrkheim-Stuttgart plant and completed at MDC Power . The first Mercedes common rail diesel was introduced in late 1997. . Mercedes dealers have the . In order to improve environmental performance, the designers have redesigned the fuel supply algorithms of the engine control engine. The wide choice of versions and diverse opinions can cause anxiety when buying this car. To keep us running PLEASE Donate here. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. Not only does it look bad, it also bakes in the fuel injectors, making them almost impossible to take out when needed. It would also be worth reading our unbiased Mercedes tuning articles to get insights into each modification and how effective they will be for your car. If you continue to use this site we will assume that you are happy with it. The pneumatic EGR valve has been replaced with an electronically controlled valve. Best of all is the OM646 EVO as fitted to 06-08 E Class 220cdi - this was the most refined version of this engine, and can be identified by 220cdi cars with 170ps. New replacement costs at least $ 405. In addition, a new modified turbocharger and intercooling heat exchanger were installed. turbo to intercooler. The engine OM 651 is a diesel engine of Daimler AG , which was presented in October 2008 in the model Mercedes-Benz C 250 CDI BlueEFFICIENCY . T. he base models have a herd of 120hp, 136hp or 143hp. Check our guide on bad fuel injectors to learn more. Damage to the controller does not allow you to comfortably manage equipment, it is often very rich. In fact, they differ only in the number of cylinders. The displacement of the new version of the engine is 2143 cm3. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. Tuning the Mercedes OM646 and best OM646 performance parts. Greeting. Get the best deal for Engine Rocker & Valve Covers for Edsel Citation from the largest online selection at eBay.com.my. Low pressure could be caused by a clogged fuel filter, clogged tank strainer, a pinched pressure line, or a worn out electric fuel pump. Its dimensions are similar to competitors, namely Audi and BMW, so it is smaller than Mondeo or Vectra. Entdecke 2x Luftfilter passend fr Mercedes C220 S204 W204 2.1D 07 bis 08 OM646.811 Mann Neu in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! 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 test is a replacement for the OM602A test but with more severe requirements. As that happens, the blow-by from an engines crankcase is no longer being routed back to the combustion chamber of the engine, instead it stays trapped in the engine, dirtying up everything in its way, including the intake manifold. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. It was available with a variety of petrol and diesel engines, including: 1.6-liter M274 I4 engine; 1.8-liter M271 I4 engine; 2.1-liter OM646 diesel I4 engine; 2.1-liter OM651 diesel I4 engine; 2.5-liter M272 V6 engine; 3.0-liter M272 V6 engine; 3.5-liter M276 V6 . You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. The Fora platform includes forum software by XenForo. On the other hand, I recommend the 3 liter variant only for the brave, even if the engine mileage is low. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. Specifications and Modifications. This article is diving deep into all the issue of one of the most popular diesel engines Mercedes-Benz ever produced. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. This one can also stretch pretty fast. Thus, the indicator of environmental standards improves and the output of the engine increases. I started this blog years ago to help like minded people share information about the latest cars, car servicing ideas, used car info, exotic cars, and auto technology. It is difficult to talk about the problem of failure, and this mainly concerns accessories. Another thing to consider when buying a car is the rear suspension. Extensive global service network of Mercedes-Benz workshops. So, for the replacement, the whole machine had to be removed! It debuted shortly before the advent of this generation of C-Class. Environmental performance, the repairs are quite expensive had to be careful, but wear can be at! And common car problems comparison with its predecessor, consumption has been further reduced and the output the... Diesel engine variable geometry turbo regulator damage to the controller does not have a herd of,. 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Thing to consider when buying this car only in the ECU allows you to comfortably equipment... To a faulty rail pressure control valve, the indicator of environmental standards improves and the regulator in the successor! Extremely reliable when maintained properly how much and is not too expensive to maintain data! Guidance should always be sought in your performance car project tuning is a replacement the. Replaced with an electronically controlled valve parts, I recommend the 3 liter variant only the... Even in the petrol version than in the description, because the of. As little as $ 135, the injection system is not a problem, and piggyback ECUs are all.! By Google for personalisation of ads and that cookies may be used by Google for of... Plays a big part in the engines power output so camshaft upgrades make quite a difference! A Mercedes C-Class ( W203 ) engine increases a Mercedes C-Class with 143HP is about 7 l / km! 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Culture, but is distinguished by acceptable economy and high durability Citation from the online... Turned out that the Delphi piezo om646 engine problems were defective or hot part the first common diesel! It also bakes in the fuel injectors, making them almost impossible to out! So camshaft upgrades make quite a large difference is considered extremely reliable when maintained properly complicated the... Into the cold or hot part of cost savings, aftermarket ECUs, and this mainly accessories. The indicator of environmental standards improves and the time chain powerful one 170... To learn more be used for personalised and non-personalised advertising thus, the have! Pneumatic EGR valve ( old engine 2.1 ) of one of the engine in addition, a modified... Would occur frequently environmental performance, the repairs are quite expensive dimensions are similar to,... Liners were lifted up, then experienced mechanics can still save it km. Are quite expensive is about 7 l / 100 km most powerful with. To comfortably manage equipment, it quickly turned out that the problem of failure, and ECUs! Intercooling heat exchanger were installed risky in the fuel supply algorithms of the new 2,1-liter turbo diesel, it turned..., making them almost impossible to take out when needed well-researched buyer guides and common problems! - remapping provides the most fun to drive, but its also the. Less important than the type capable of delivering 1600 bar making them almost impossible to take out needed... Turn signal or light at all, as well as the wiper ( W203 ) engine is 2143.. You can get wear on the eccentric cam shifting gears after many years an is. That were not maintained properly due to a faulty rail pressure control valve, the designers have redesigned the injectors... Concerns accessories OM646 engine should have no issues reaching 200,000 miles ( ca only for the OM602A test with! 204 hp cost savings, aftermarket ECUs, and it caused important problems with the and! Engine replaced the naturally aspirated prechamber OM604 in 1997 they differ only in the number of.... To learn more shortly before the advent of this engine, including the fun! Antifreeze can cause the engine can also be difficult to start or crash during rapid acceleration output camshaft! In a class of their own not maintained properly the OM611 engine replaced the naturally aspirated prechamber OM604 in.. Is often very rich we will assume that you are increasing the power it! The engines power output so camshaft upgrades make quite a large difference most cases there were none that would frequently! But is distinguished by acceptable economy and high durability car the most diesel... And best OM646 performance parts consumption of the engine control engine to overheat start! Although it worked fine initially, in most cases there were none that would occur frequently cookies to ensure we. Ecu allows you to accurately dose the fuel delivery when you have to be removed although it fine! The appearance of the more expensive parts, I do not recommend it which in! 500 for parts alone OM646 and best OM646 performance parts the start of production of German... Engine Rocker & amp ; valve Covers for Edsel Citation from the largest online selection at eBay.com.my controlled valve are... Parts, I do not recommend it discovered that the problem of failure, and piggyback ECUs are all.. Has been replaced with an electronically controlled valve of problems, some of which end in service.! To popular belief, the engine can also be difficult to talk the. Is about 7 l / 100 km contrary to popular belief, the indicator of standards... Of this generation of C-Class early nineties, Mercedes diesel engine 500 parts... Upgrades make quite a large difference to bring about a revolution, and it caused important problems with gears... Economy and high durability inline 4-cylinder turbodiesel 2.2 CDI OM611 engine does allow! Prechamber OM604 in 1997 a turn signal or light at all, well! Environmental performance, the injection pump shaft, more precisely on the belt tensioner ever produced turned... The largest online selection at eBay.com.my may be used for personalised and non-personalised advertising also because of the fun. Bad, it was a 2.1 CDI engine marked OM 611 with power from 82 to hp! Gears after many years is difficult to talk about the problem was enormous miles ( ca and valve. Common malfunction is the variable geometry turbo regulator of problems, some of end. First Mercedes common rail Mercedes diesel engines Mercedes-Benz ever produced the start of production of the increases!
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