This leads to a significant drop in power, and the valve can become detached, which then enters the engine and leads to engine damage. ! #10. OM646 engine is sold under the 200 CDI and 220 CDI designation and meets The W203 will be better than the cheapest, at roughly the same cost as the W204. The faulty pump must be replaced. Tuning the Mercedes OM646 and best OM646 performance parts. 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. Design [ edit ] 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). Since a special stand is required. Most tuners we speak with say to be generous with your flow rate on the injectors. . The ecu map and fuel pump and injectors also will say much on the torque gains you'll achieve. The ECU is uncovered to allow for heat dissipation, which allows the heat to rise away from it as well as allow air flow over the unit. Plastic painting tips for car interior and exterior.Read more Tuning the 150bhp Diesel Astra Sport HatchRead more MPG calculator UK miles per Gallon calculate MPGRead more / UK Modifying & Tuning / Car Mods Goodbye, 2000 - 2023 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. Engines & Engine Parts; Gaskets, Seals & Hardware; Gaskets & Seals; GASKET SET CYLINDER HEAD COVER FOR MERCEDES-BENZ OM646.821/811/820/812 2.1L; See Details on Ebay GASKET SET CYLINDER HEAD COVER FOR MERCEDES-BENZ OM646.821/811/820/812 2.1L. In summary, all gasoline engines can be recommended. We use cookies to ensure that we give you the best experience on our website. In 2006, Mercedes-Benz upgraded the OM646 diesel. The pulley alternator in + can often fail. Best Mercedes AMG Engine: 6.2-Liter V8. Few problems should happen as long as they are regularly serviced and maintained. Its also not easy to repair, though it costs a lot like a turbo at around $250. Plenty of these engines made it to 200,000 miles (ca. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. The shaft can be changed separately. From the start, the 2.1 CDI OM651 diesel met Euro 5 emission standards. In practice, two seats with a small luggage capacity of 310 liters. OM646.981, OM646.982, OM646.983, OM646.984, OM646.985, OM646.986, MBMANUALS.COM Website Content Copyright Protected, Mercedes Benz Classics: Owners Operation, Service, and Repair Workshop Manuals, 110 kW (150 PS; 148 hp) @ 3,800-4,200 rpm, Manuals may be used as reference for other vehicles with OM646 So please pay attention to this article. Compliance with Euro-5 environmental standards is the first characteristic feature of this engine. This entry was 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. In a direct comparison with its predecessor, consumption has been further reduced and the engine . The Mercedes-Benz W204, also known as the C-Class, was produced from 2007 to 2014. Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. More than 300,000 vehicles appear on the website. Quite often there are error messages that are difficult to verify (especially on diesel engines). turbocharged inline-four cylinder motor produced between 2002 and 2010. OM647 and OM648 In authorized workshops, the scope of work means that service costs can be up to several hundred dollars. Due to a faulty rail pressure control valve, the engine can also be difficult to start or crash during rapid acceleration. 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. Format: .pdf document, Applications: See Image >, Download Link Sent to your PayPal email address, OM646.951, OM646.961, OM646.962, OM646.963, OM646.966, OM646.980, We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. 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 item is your responsibility until it reaches us. 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. Where did the application come from? Save my name, email, and website in this browser for the next time I comment. Regulators regenerate most often. Why word? To finally solve the problem, starting in 2011 on motorcycles designated 220 CDI, and starting in 2012 on 250 CDI motorbikes, Mercedes began installing electromagnetic injection devices. The new nozzles are made with a smaller nozzle size, which improves atomization efficiency. I started this blog years ago to help like minded people share information about latest cars, car servicing ideas, used car info, exotic cars, and auto technology. 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. T. he base models have a herd of 120hp, 136hp or 143hp. was updated under the EVO name and replaced the One of the significant drawbacks of this engine is the wear of the balance shaft gears, the replacement of which is very time consuming and therefore expensive. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). 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. We use cookies to ensure that we give you the best experience on our website. In this case, it is better to remove the dampers, and plug the holes for their axes. One of the most notable features of the Mercedes C200 is its engine. In 1999, versions with 115 and 143 hp appeared, and three years later - a new generation 2.1 CDI with the designation OM 646 and power of 122 and 150 hp. In 2006, the engine was updated under the EVO name and replaced the OM647 and . Jan 27, 2017. And all of them indicate that it is not completely removed. The timing chain is very sensitive to it, and under such conditions it is worth replacing even every 80,000-120,000 km. In addition, a new modified turbocharger and intercooling heat exchanger were installed. 20072009W204 C220 CDI. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. If the bed was not particularly damaged when the liners were lifted up, then experienced mechanics can still save it. It was a 2.1 CDI engine marked OM 611 with power from 82 to 204 hp. Forcing air into the OM646 engine is the main goal to any performance tuning project. If you continue to use this site we will assume that you are happy with it. 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). The 6-speed automatic gearbox is actually a manual automatic gearbox with sequential displacement without the use of a clutch. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. 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. 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. Due to the lack of special elements, the whole branch must be changed. The system is capricious. General description. In addition to the regular and derated modifications, RED has been offering an improved EVO since 2006. Thus, the indicator of environmental standards improves and the output of the engine increases. - Injectors. gas recirculation, and particulate filters.. In the most severe cases, the crankshaft cracks. The OM646 engine was chosen because it represents the current state-of-the-art diesel engine technology. They are cheaper to maintain, but under more difficult conditions the 4Matic works just fine. The machine we will be discussing today has the designation OM651 and focuses on maximum modernity. During 9 years of production, OM651s 2.1 CDI engine was installed on the following models: Although in 2008 the modern Mercedes engine seemed to be the pinnacle of technical possibilities, the first black clouds began gathering overhead just months after the premiere. The diesel compression ratio was lowered from 18.0 to 17.5. LifeOnFour.co is a participant in the Amazon Services LLC Associates Program. Thermostat to open already at temperatures of 45 degrees. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()), 150 / 4200 (170 / 3000 for turbo version), 340 / 2000 (400 / 2800 for turbo version). The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. They also improve the scavenging effect of the engine. They've been in almost every Mazda in North America for the last 12 years and nobody ever talks about them - they're like a background noise that everybody tunes out. It is difficult to talk about the problem of failure, and this mainly concerns accessories. The solution is to replace the crankshaft, liners. Please watch our video which covers the 5 principles of tuning your car. The damage can also be brought upon crankshaft with oil dilution issues. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. However engines will need better parts at higher power limits.Discover these limitations and install forged components to cope with the power. The cylinder head has been redesigned to provide even more efficient engine cooling. And the regulator in the ECU allows you to accurately dose the fuel, avoiding overflow. Other variants are ok. If you are a regular reader of Lifeonfour, you might know by now that I myself own a W211 T-Model with the incredible OM642 3.0 V6 turbo diesel engine and you might also know that as much as I love this car and engine, I also criticize it based . We use cookies to ensure that we give you the best experience on our website. However, they can harden, jam, and the holes under their axles are broken, due to which soot and oil from the intake seeps out. These manuals include procedures for maintenance, adjustment, service Thats why it has appeared in the range of German brands for 6 years. Advantages Costs. Were hoping this article did not scare you, the truth is, the OM646 diesel engine is one of the greatest Mercedes diesel engines. Today has the designation OM651 and focuses on maximum modernity will be discussing today has the designation OM651 and on! Easy to repair, though it costs a lot like a turbo at around $ 250 was updated the! To several hundred dollars not completely removed tuning your car been offering an EVO... Heat exchanger were installed features of the Mercedes 2.2 CDI OM646 engine is the main to... 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