While replacing all rocker arms isnt a huge expense (about $250), self-leveling shock absorbers in terms of repair are $128-$154 per item. At the turn of 2009 and 2010, 4.5 thousand vehicles with faulty injection systems were sent to service every week! When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. Solving the problem is not complicated and not too expensive. A more modern version of the 2.1 liter diesel is chosen by the driver. And as if that werent enough, the timing chain drive isnt very durable. The item is your responsibility until it reaches us. 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. 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. They are all sold as a single kit. There were two modifications of the crankshaft, because the working volume of some versions is different. Lets start with fuel injectors. If you continue to use this site we will assume that you are happy with it. If you continue to use this site we will assume that you are happy with it. The solution is to replace the crankshaft, liners. There is also a coupe-style body called the Sportcoupe. 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 the regulator in the ECU allows you to accurately dose the fuel, avoiding overflow. Every engine has Common Rail injection, and Mercedes isnt the best-performing company. On this Wikipedia the language links are at the top of the page across from the article title. 271,979 km). The chain itself is not very expensive, so no worries here! 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. Good proof is a machine called the 2.1 CDI OM651. styling and friendly car banter. The top versions, labeled 220 CDI and 250 CDI, produce 170hp and 204hp respectively. Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). In a direct comparison with its predecessor, consumption has been further reduced and the engine . If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. Privacy Policy: We do not store or collect personally identifiable information. The OM646 engine is no different. 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. Thus, NOx emissions are reduced, the smooth operation of the diesel engine is improved, and noise and vibrations are reduced. And it really lasts, due to its shortness it is less prone to stretching than the timing chain in the bigger 6-cylinder OM642 diesel engine. We strive to provide the internet with information that will ease your purchase of a new or a used car. At an auto store, the same part can be purchased for $ 40. Few problems should happen as long as they are regularly serviced and maintained. Another thing to consider when buying a car is the rear suspension. 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. 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. Combi with so round that it has a bit bigger 470 l for roller shutter. Tuning the Mercedes OM646 and best OM646 performance parts. The last problem with the fuel injection is related to the fuel rail. The repair costs exceed half a billion euros. The area that is quite disturbing to users is electricity. Light and compact, yet almost completely trouble free with proper servicing. Any small excerpts and quotes copied must be accompanied by a link to the source material. And while the parts themselves can be bought at auto stores for as little as $ 135, the repairs are quite expensive. Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. Replacing the timing chain is no more expensive than the belt on a typical car of this class. The faulty pump must be replaced. 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. Its dimensions are similar to competitors, namely Audi and BMW, so it is smaller than Mondeo or Vectra. Work out your MPG
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). Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. 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. 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. Hi there, I am Mladen and I am an auto enthusiast. We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited power at a much lower level. Please share this page with your friends on : PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. Download: 36.7 mb, 168 pages
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. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. Here, careful verification is important. Symptoms of failure are turning on emergency mode while driving, or the engine stopping. 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. Most tuners we speak with say to be generous with your flow rate on the injectors. Germany focuses on power, work culture and economy. This engine continued the modular tradition. The culprit is the coolant pump. 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. 3. bar, VTG turbocharger with electrical actuator motor, (variable
The good news is the high durability of the timing chain and the resistance of this engine to torture. I advise what to choose and what to pay attention to. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. Mercedes dealers have the . The engine turned out to be so durable that AMG chose it as the base variant of the sport version model and after adding a compressor it developed a power comparable to the later 5.4l. Help us improve, leave a suggestion or tip. Of course, the durability of both transmissions depends only on regular oil changes if serviced properly, they can last a long time. 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. 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. Each engine in the W204 has a unique engine code, which can be helpful when looking for replacement parts. 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). This excessive play between the bearing inserts and the crankshaft will eventually damage the crankshaft. This problem cannot be determined in garage conditions. 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. It seems to me that bolting the turbo and cat to the engine unit is more for economy of manufacture, and in fact has been done at the expense of both longtivity and maintainability. 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
The engine doesnt handle short distances well, especially in winter, when its not heated properly. The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. Stretching the timing chain is a favorite problem of the 2.2 CDI OM646 Engine . In addition, a new modified turbocharger and intercooling heat exchanger were installed. engines. 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. Bosch fuel system If you use good quality parts at an independent repair shop, you can pay well under $ 820 for the same repair. The four-cylinder in-line engine is the successor to the OM-646 four-cylinder series and is also intended to replace the weaker versions of the V6 OM 642 engine . Another problem and on a large scale is corrosion. The durability of the structure itself is very high. 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. The flaps wear out and break. Induction Kits
The best AMG engine is a 6.2-Liter V8, fitted in the 63. 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. Other changes have also been made: By contacting the service center in time, it is possible to identify the problem at an early stage. In December 1997 Mercedes entered the era of the modern diesel engine as one of the worlds first automotive companies. Such an injection is capable of delivering 1600 bar. 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 infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. Find a mercedes benz private on Gumtree in Walsall, West Midlands, the #1 site for classifieds ads in the UK. 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 Mercedes-Benz OM 646 is a four-cylinder diesel engine with two overhead camshafts that actuate the 16 valves via hydraulic tappets . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. In 2006, the engine
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