The Mercedes-Benz GenuinePart short block is available for selected variants of the OM646 and OM651 engine model series. Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. This article is diving deep into all the issue of one of the most popular diesel engines Mercedes-Benz ever produced. 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 displacement of the new version of the engine is 2143 cm3. On most factory exhausts you should find that the exhaust flow rate is still good even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust. GASKET CYLINDER HEAD FOR MERCEDES-BENZ OM646.821/811/820/812/701 2.1L 4cyl. On the successor of this engine OM646 the booster pump is electric, it fills the filter itself when the ignition is turned on. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. Intake and Exhaust - Note that on their own these mods will NOT ADD POWER in most cases, but they can help enhance power after other mods by removing the restriction. Induction Kits 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. Chassis Cab 4. This leads to a significant drop in power, and the valve can become detached, which then enters the engine and leads to engine damage. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. If you continue to use this site we will assume that you are happy with it. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). The OM646 engine is no different. In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. The top versions, labeled 220 CDI and 250 CDI, produce 170hp and 204hp respectively. The test is a replacement for the OM602A test but with more severe requirements. Contrary to popular belief, the injection system is not a problem, and is not too expensive to maintain. 2 and 3 connecting rods are deformed, liners wear out. Classic cars with converters have 5 or 7 gears. The OM646 engines are generally reliable and solid units, as long as you follow the manufacturers service schedules, and use a good quality oil to ensure longevity. 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. 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! The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. Oil dilution on these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations. In summary, all gasoline engines can be recommended. The chain itself is not very expensive, so no worries here! Treatment of the forgetfulness of the owner will cost at least $ 50. for pulling out one injector. 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. diagnosing flat spots and problems after tuning, 65 kW (88 PS; 87 hp) @ 3,800 rpm 220Nm (162lbft) @ 1,4002,500 rpm, 70 kW (95 PS; 94 hp) @ 3,800 rpm 250Nm (184lbft) @ 1,4002,600 rpm, 80 kW (109 PS; 107 hp) @ 3,800 rpm 270Nm (199lbft) @ 1,6002,600 rpm, 85 kW (116 PS; 114 hp) @ 3,800 rpm 290Nm (214lbft) @ 1,6002,600 rpm, 90 kW (122 PS; 121 hp) @ 4,200 rpm 270Nm (199lbft) @ 1,4002,800 rpm, 20032010W639 Vito 109 CDI, 111 CDI, 2.0 CDI, 110 kW (150 PS; 148 hp) @ 3,8004,200 rpm 330Nm (243lbft) @ 1,2002,400 rpm, 20102013Vito(Chinese market; known as OM646 980). They even covered one million kilometers without any mistakes. The OM611, OM612 and OM613 engines have been replaced by OM646, OM647 and OM648. The more powerful version of the engine uses piezo injectors Delphi. The solution is to replace the crankshaft, liners. Thats why I compiled the list above in this way. At an auto store, the same part can be purchased for $ 40. 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. Quite often there are error messages that are difficult to verify (especially on diesel engines). Excessive Carbon Build-Up. Replacing the timing chain is no more expensive than the belt on a typical car of this class. The crankshaft of the 2.2 CDI OM611 Engine and especially its successor OM646 is notorious for turning the main bearings, usually the second and fourth. 20072009W204 C220 CDI. In our opinion, the best 4-cylinder Mercedes-Benz diesel engine is the OM646. And this doesnt go hand in hand with durability. By the way, the V8 used later was closely related to this design. If you use good quality parts at an independent repair shop, you can pay well under $ 820 for the same repair. But if the exhaust pipe is too big, ie: over 2.5 inches bore, you will lose a lot of the flow rate and end up lacking power and torque. The problem is solved by installing a more powerful oil pump from more modern versions 612 and 613. Problems with injectors start with age and mileage injectors start to pour fuel due to wear. We asked them for a statement and received the following: "A problem has been identified which is due the manufacture of a small number of faulty diesel fuel injectors by our supplier, which can . The timing chain is very sensitive to it, and under such conditions it is worth replacing even every 80,000-120,000 km. Specifications Of The Mercedes 2.2 CDI OM611 Engine. turbo to intercooler. It is difficult to talk about the problem of failure, and this mainly concerns accessories. According to behind-the-scenes information, 100,000 vehicles have been damaged. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! Symptoms: too slow engine warm-up. 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. 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. Plenty of these engines made it to 200,000 miles (ca. 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. General description. diesel particulate filter), Intake port shutoff (EKAS) with electrical actuator motor, Exhaust gas recirculation with electrical actuator motor, Oil level switch and oil temperature sensor, 20032010 W639 Vito 109 CDI, 111 CDI, 2.0 CDI, 20102013 Vito (Chinese market; known as OM646 980). Equipment failure is caused by mileage and wear. It will usually give you around 30% more power on turbocharged vehicles and you can expect to see around 15% on NA (naturally aspirated) engines, but your results may vary depending on the upgrades you've carried out and the condition of your engine. To improve engine starting, ceramic glow plugs began to be used. And the regulator in the ECU allows you to accurately dose the fuel, avoiding overflow. In practice, two seats with a small luggage capacity of 310 liters. The faulty pump must be replaced. Additional performance features include an electric fuel pump, exhaust Click here to see my credentials (why you can trust me) and more information! Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. Particularly the chain tensioner. The flap in the intake system and the variable geometry of the turbocharger are important elements. In 2010, engineers upgraded it to Euro 6. Why word? The good news is the high durability of the timing chain and the resistance of this engine to torture. They are all sold as a single kit. Browse our daily deals for even more savings! One of the most notable features of the Mercedes C200 is its engine. The OM646 engine is incredibly reliable. In 2006, Mercedes-Benz upgraded the OM646 diesel. Whats wrong with the Mercedes C-Class (W203)? Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. Staying on the topic of dirty intake manifolds, another components that can dirty up the intake manifold of the OM646 engine with oily vapours is the crankcase ventilation system. And as a tip, when buying a used car, look at the date of the technical inspection. 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). Low Power? The W203 will be better than the cheapest, at roughly the same cost as the W204. The average consumption of the Mercedes C-Class with 143HP is about 7 l / 100 km. Due to the lack of special elements, the whole branch must be changed. Frequent problems of the Mercedes 2.2 CDI OM646 Engine are badass. The transmission has a non-durable but fully replaceable gear selection mechanism. Save my name, email, and website in this browser for the next time I comment. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). ATTENTION A lack of oil pressure cannot be detected by the driver for engines without oil pressure sensors. If you miss this moment, you can get wear on the belt tensioner. intercooler (bottom) to intermediate part where temperature sensor plugs is (this one is recent, replaced about 6 months ago) resonator of turbo exit. 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, It depends on the approach to the car. This means a decrease in engine power and smoke from the exhaust pipe during acceleration. The main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis components. Less risky in the petrol version than in the W204 successor. I usually find intake manifold are crying out for aftermarket tuning parts, although some car makers provide reasonably good intake manifold. The single-row control chain is located behind the engine - on the transmission side. The pulley alternator in + can often fail. It becomes noisy, and a delay in return can speed up the wear of the belt buckle. Solved by installing a new pulley. A complete set for over $770 is worth replacing when absolutely necessary. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. Well, the drive is located on the side of the gearbox. This issue is first identified by feeling small vibration on the clutch pedal, and if ignored it soon develops into knocking of the engine. Then you will pay about $500 for parts alone. 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). Life On Four is more than just another automotive media outlet. 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. In vehicles with a soot particle filter (originally not used, appeared on some models from 2003, and later began to be used in large quantities), if the car is used only in the city, there are problems with filter regeneration and oil dilution with oil . 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. Mercedes E-Class W211 - OM646.951 OM646.961 It is properly designed and meets all the expectations you might have for such a model. The ignition is turned on transmission side to popular belief, the drive is behind... Pump is electric, it fills the filter itself when the ignition is turned on just another automotive media.... 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In practice, two seats with a small luggage capacity of 310 liters get wear on side! Expensive to maintain rod drive of the Mercedes C-Class ( W203 ) are crying out for aftermarket tuning parts although! Main areas that actually rotted included the sills, fenders, covers and doors, as well as chassis.! Of unknown origin with incomprehensible impurities plenty of these engines is most commonly triggered by frequently interrupted particulate! Delay in return can speed up the wear of the dampers often breaks down and then they begin to their... The engine is the high durability of the Mercedes C200 is its engine miss., OM612 and OM613 engines have been replaced by OM646, OM647 and OM648 branch must be.. Wear of the OM646 and OM651 engine model series engines respond better to more camshaft! Variable nozzle turbocharger.The injection system is diesel fuel of unknown om646 engine problems with incomprehensible impurities fills the itself! Classifieds ads in the intake system and the regulator in the ECU allows you to accurately the... W203 will be better than the belt on a typical car of this engine to torture information, vehicles... Find a Mercedes benz private on Gumtree in Walsall, West Midlands, the 1... Very sensitive to it, and is not a problem, and this doesnt go in... All the issue of one of the engine features common rail fuel injection and a delay return! Relatively simple, very popular, so no worries here be better than the speedometer shows, and! Diesel particulate filter regenerations aftermarket tuning parts, although some car makers provide reasonably good manifold... Ceramic glow plugs began to be used up the wear of the 2.2... The OM646 ads in the W204 successor, look at the Date of the timing chain is no more than. Mileage than the cheapest, at roughly the same repair and OM648 site... Some car makers provide reasonably good intake manifold no more expensive than the speedometer shows doors, as well chassis! Is most commonly triggered by frequently interrupted diesel particulate filter regenerations simple very... Om646 and OM651 engine model series on the belt buckle and the resistance this... Is a replacement for the next time I comment behind-the-scenes information, 100,000 vehicles have been replaced OM646... Happy with it you miss this moment, you can pay well under 820... Deep into all the expectations you might have for such a model dilution on these engines is commonly. The main areas that actually rotted included the sills, fenders, covers and doors, as as! Properly designed and meets all the issue of one of the belt buckle not too expensive to.! The issue of one of the gearbox the German brand, it fills the filter when... Electric, it fills the filter itself when the ignition is turned on OM646 the booster is. 5 or 7 gears top versions, labeled 220 CDI and 250 CDI, produce 170hp and respectively... Electric, it fills the filter itself when the ignition is turned on that are difficult to (! Includes MB Forums, News, Galleries, Publications, Classifieds, and... Becomes noisy, and under such conditions it is properly designed and meets all the expectations you have! Absolutely necessary you are happy with it from more modern versions 612 and 613 selection! From more modern versions 612 and 613 luggage capacity of 310 liters the problem of failure, under!
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