Alternator pulley failure is accompanied by noise. 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 displacement of the new version of the engine is 2143 cm3. And as a tip, when buying a used car, look at the date of the technical inspection. 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. Issues by Engine Type or Engine Name 2.1. Typical stage 1 mods often include: drilled & smoothed airbox, Panel air filters, Remaps/piggy back ECU, Fast road camshaft, Sports exhaust header/manifold, Intake manifolds. Check crankshaft bearings for alignment. 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. The wide choice of versions and diverse opinions can cause anxiety when buying this car. Solenoid valves are used to control the turbocharger and EGR valve (old engine 2.1). Not only does it look bad, it also bakes in the fuel injectors, making them almost impossible to take out when needed. The turbine and floating flywheel rarely manage to cover 150000 km. These four seals can be re. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. In the intake manifold of the 2.2 CDI OM611 Engine there are flaps for the filling channels. 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. More than 300,000 vehicles appear on the website. All engines are equipped with intercoolers. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! 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. It is a unit where different opinions can be found or heard. Tee in a gauge and check the pressure during cranking, it should be 55-65 psi steady. Definitely get the auto box, subject to Mr E's Valeo / glycol warning. 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. Independent repair shops may quote head removal or butcher it up. We think this one is common sense, but you'll need to match your fuel injector to the type of fuel your car uses as well. Particularly the chain tensioner. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). The 2.1 CDI OM651 Mercedes engine stands for work culture, economy and high power. A known problem with the 2.1 CDI OM651 diesel engine is a leak in the cooling system. . Good for you, but don't buy anything untill watching this video. It features a reduced compression ratio of 17.5:1, a new turbocharger, and ceramic glow plugs for improved engine starts.[3]. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. I especially recommend this option for the more powerful and larger versions of the engine. 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. The engine doesnt handle short distances well, especially in winter, when its not heated properly. The more powerful version of the engine uses piezo injectors Delphi. Best Mercedes AMG Engine: 6.2-Liter V8. Save my name, email, and website in this browser for the next time I comment. hoses that run from: intermediate part where the temp sensor is (top) - intake. 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. 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 . 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. Electric connections in the engine often have trouble working with the crankshaft sensors, which can lead the car simply shut down and stop working. At the turn of 2009 and 2010, 4.5 thousand vehicles with faulty injection systems were sent to service every week! Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. Answer: Well, that's the diesel engine all the MB techs here stateside want, if that tells you anything. The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. More and more users of cars equipped with 2.1 liter diesel engines of the 220 CDI and 250 CDI versions are starting to complain about the extremely low durability of the Delphi piezoelectric injectors. 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. Although the design is simpler than that of high pressure fuel pumps with nozzles. The intake and exhaust durations will alter depending on the chosen camshaft profile, so large engines power gains are on offer for camshaft upgrades. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. To improve engine starting, ceramic glow plugs began to be used. Panel van 3.2. Modification: OM611 DE 22 LA red. From the start, the 2.1 CDI OM651 diesel met Euro 5 emission standards. The OM646 engine was the first Mercedes diesel engine to feature a turbocharger with an electronic actuator. 3. It is difficult to talk about the problem of failure, and this mainly concerns accessories. Forza 5 tuning guide. 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). Regular oil + filter changes and frequent motorway runs will help to . OM617 engine 3. The compression ratio of the diesel engine was lowered from 18.0 to 17.5. The problem with plastic swirl flaps and the accompanying plastic rod controlling their movement is the material. Every version of this engine, including the most powerful one with 170 horsepower, is considered extremely reliable when maintained properly. The main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. Which helps us keep our guides and tips up to date helping others with their modified car projects. The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. This sometimes lasts several, and sometimes several thousand kilometers. Another thing to consider when buying a car is the rear suspension. 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 . Many of these engines are being killed by owners who go into austerity mode, which means using the cheapest oil and consumables. If you use good quality parts at an independent repair shop, you can pay well under $ 820 for the same repair. The flap in the intake system and the variable geometry of the turbocharger are important elements. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. Also, the common rod drive of the dampers often breaks down and then they begin to live their own lives. Because I love writing and researching, especially about cars. The Mercedes-Benz W204, also known as the C-Class, was produced from 2007 to 2014. Repair costs around $ 135. Some of our members have had issues with flat spots or glitches after applying mods and upgrades or tuning, this is not usually related to this engines design, so instead see our article on diagnosing flat spots and problems after tuning which should help you get the bottom of this issue. In addition, a new modified turbocharger and intercooling heat exchanger were installed. Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. Serious problems arise when the sealing of the washer under the nozzle loosens. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. For a better experience, please enable JavaScript in your browser before proceeding. Plunger pairs are very tenacious, but wear can be observed on the injection pump shaft, more precisely on the eccentric cam. Typical stage 3 mods often include: Internal engine upgrades (head flowing porting/bigger valves), Crank and Piston upgrades to alter compression, Competition cam, Engine balancing & blueprinting, Adding or Upgrading forced induction (turbo/supercharger), Twin charging conversions. Important in the description, because the capacity of the engine is less important than the type. 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. Issues by Complectations or Trim Levels 3.1. The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. Engines: OM611 OM612 OM613 OM642 OM646 OM647 OM648 This entry was In addition, a new revised turbocharger and charge air intercooler were installed. Euro 4 emission standard compliance (from 2003) on. There's a widely reported problem with C-Class Mercedes vehicles produced in 2007. Unfortunately, this is also a series of problems, some of which end in . The repair costs exceed half a billion euros. The 2.1 CDI engine marked OM 651 debuted in 2008. NA (naturally aspirated) engines need quite a lot of work when you add a turbo, so we have a separate guide to help you take into account the pros and cons of going this route on your OM646. Thus, NOx emissions are reduced, the smooth operation of the diesel engine is improved, and noise and vibrations are reduced. Work out your MPG In authorized workshops, the scope of work means that service costs can be up to several hundred dollars. Look after it, and it's a good engine capable of many hundreds of thousands of miles. On the successor of this engine OM646 the booster pump is electric, it fills the filter itself when the ignition is turned on. 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