Good proof is a machine called the 2.1 CDI OM651. 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. It has two turbochargers (in versions of more than 143 hp), which provide a boost pressure of 2 bar. The fuel system provided 2 pilot injections. Symptoms: too slow engine warm-up. Minibus 3.3. 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. 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. Design and rate of flow of the Intake can make a substantial difference to fuel atomisation and engine efficiency on the OM646. Solving the problem is not complicated and not too expensive. On the other hand, I recommend the 3 liter variant only for the brave, even if the engine mileage is low. It features a reduced compression ratio of 17.5:1, a new turbocharger, Thank you very much. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. Panel van 3.2. "When engine oil is at operating temperature, the oil pressure in the idle speed range must not drop below 0.3 bar. Whats wrong with the Mercedes C-Class (W203)? Contrary to appearances, it is already a modern unit, it should not be treated as a Mercedes barrel. 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. This means a decrease in engine power and smoke from the exhaust pipe during acceleration. A number of solutions included in the TwinPulse name are used. Low pressure could be caused by a clogged fuel filter, clogged tank strainer, a pinched pressure line, or a worn out electric fuel pump. On the successor of this engine - OM646 - the booster pump is electric, it fills the filter itself when the ignition is turned on. Double Clutch This engine continued the modular tradition. 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). Despite the good attitude of the German brand, it quickly turned out that the problem was enormous. Symptoms: starting problems, excessively high fuel consumption and unequal operation. The OM651 is the latest engine fitted to cars badged as 200/220cdi (the latest <W212> E Class), but these have a few more issues compared to the OM646, such as injector issues . The system is aired. It also has the same problem with oil leakage as the M111. The engine got a new generation common rail system, an electric EGR valve and a liquid-cooled alternator. In a car used daily, really you should, ideally aim to match your engines power to your cars usage. Shortly after the start of production of the new 2,1-liter turbo diesel, it was discovered that the Delphi piezo nozzles were defective. Shopping for a Mercedes-Benz? Entdecken Sie KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay. The working quality of the engine is affected by the oil which should have a fairly low viscosity (even 0W30), while many engines work on semi-synthetics, because this is the trust of mechanics and users. Es ist ein Problem . To remove the unit you must first remove the engine covers. 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! 1.8-liter M271 I4 engine - M271.860, M271.861, M271.862, M271.820, M271.860. The common rail injection system ensures smooth engine operation and low fuel consumption. The engine block, as before, is made of cast iron, and the head is made of light alloy. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. 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. Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. They should be changed every 60,000 km, along with the replacement of the injector mounting bolts. They are all sold as a single kit. A common malfunction is the absence of a turn signal or light at all, as well as the wiper. Manufacturer Part Number 61-37200-10. If it needs to be replaced, you should be aware that the engine mileage may already exceed 500,000 kilometers. These four seals can be re. The differential pressure sensor usually falls first. 20072009W204 C220 CDI. 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. The 6-speed automatic gearbox is actually a manual automatic gearbox with sequential displacement without the use of a clutch. Note the presence of this solution in the S203 model, namely in the C class car estate. Considering the already significant design advances, the richness of electronics, the high failure rate, the condition of the body and chassis, I believe that there are better and cheaper to maintain cars of this class from 20002003 on the market. Chassis Cab 4. Until mid-2006, the OM646 was equipped with the Garrett GTA18V turbocharger, but Mercedes changed that after 2006 to incorporate the newer KKK turbo by BorgWarner. feature on twinchargers if you want to read more. May 14, 2017 #1 hello all,i have just recently purchased a mercedes-benz sprinter 2008 315 cdi lwb hi roof. Important in the description, because the capacity of the engine is less important than the type. Plenty of these engines made it to 200,000 miles (ca. Many owners unknowingly did not change the refractory washers under the nozzles. In our experience, a regularly maintained OM646 engine should have no issues reaching 200,000 miles (ca. Larger OM646 valves, doing a bit of OM646 port enlargement and head flowing will also boost power, the fantastic side effect is it will make space for a better power increase on other parts. Injection pressure up to 2000 bar. If you use good quality parts at an independent repair shop, you can pay well under $ 820 for the same repair. Serious problems arise when the sealing of the washer under the nozzle loosens. The next edition of the diesel engine bearing the star logo entered the market in 2008. This problem cannot be determined in garage conditions. If you continue to use this site we will assume that you are happy with it. In this article I will not discuss it, although from a technical point of view it is the same. And as if that werent enough, the timing chain drive isnt very durable. 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. Here, careful verification is important. Modified car insurance 271,979 km). Browse our daily deals for even more savings! Oil dilution on these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations. Bearing wear leads to oil leakage into the cold or hot part. Chevrolet Cruze - prescribed quantities of engine oil and service, Opel 2.8 V6 Z28 NEL / NET engine - Opel training video, Volvo XC60 - prescribed engine oil quantities and service, Opel Tigra I 1994 - 2000 - Used car, advantages, disadvantages, Bentley Continental GT 2010-2018 Used, Experiences and Common Issues Found, The most frequently and rarely damaged cars in Europe, Bmw X5 F15 2013 -2018 - used, experience, problems, 1.0 TSI engine - history, problems, experiences. The first generation Bosch CP1 fuel pump is also very reliable. Learn how and when to remove this template message, "Mercedes Benz reveals new range of four cylinder diesels", "Mercedes C200 CDI estate review | Autocar", "Mercedes-Benz OM646, OM647 and OM648 engines", https://en.wikipedia.org/w/index.php?title=Mercedes-Benz_OM646_engine&oldid=1125632978, Articles needing additional references from April 2019, All articles needing additional references, Creative Commons Attribution-ShareAlike License 3.0, 110kW (150PS; 148hp) @ 3,8004,200 rpm, This page was last edited on 5 December 2022, at 01:27. Another thing to consider when buying a car is the rear suspension. 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 . Because I love writing and researching, especially about cars. From the start, the 2.1 CDI OM651 diesel met Euro 5 emission standards. Unfortunately, this is far from ideal. Your personal data will be used by Google for personalisation of ads and that cookies may be used for personalised and non-personalised advertising. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. Some of you might have read my guide on oil dilution and my personal experience with oil dilution on the 6-cylinder Mercedes diesel engine. Ping us if you have anything cool to share on the latest cars or how to make older cars more efficient, or just want to say hi! If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. However, the compressor is a more complicated component and therefore a bit more emergency. Basically, the engine has no typical faults, but the typical consequences of years of use and neglect (leaks, dirt, less frequently stretched timing chains) are encountered. Big turbo chargers commonly experience a bottom end lag, and low capacity turbo chargers spool up much more quickly but don't have the top end bhp gains. Therefore, annual preventive maintenance will help to avoid buying a new engine. How much and is it worth buying a Mercedes C-Class (W203)? The swirl flaps can also get stuck due to excessive carbon accumulation in the intake manifold. Make sure you dont drive these cars on an empty fuel tank (because the DPF regeneration wont be triggered) and only for short distances. Of course, the durability of both transmissions depends only on regular oil changes if serviced properly, they can last a long time. and operation, along with removal and installation of components. 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. One of the most notable features of the Mercedes C200 is its engine. The repair will be difficult and will cost money. We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. It was also installed on the E-class W210, Vito and Sprinter. 2.1L I4 OM646 CDI (Moved thread) Thread starter claytron; Start date May 14, 2017; C. claytron New member. - Injectors. Something suitable for one model of car may be completely unsuitable for another - so we can only provide generic theory. Exhaust smell in the cabin?ALL of these issues can be traced back to faulty intake seals. If you continue to use this site we will assume that you are happy with it. 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. ECU Remapping "All you need to know about tuning the Mercedes OM646 engine!". Om651 diesel met Euro 5 emission standards you very much garage conditions isnt very durable hp! Hi roof oil leakage into the cold or hot part need to know about tuning the C200!, M271.820, M271.860 the German brand, it should not be treated as a Mercedes C-Class ( W203?. Usually the cause of the engine block, as well as the M111 no issues reaching 200,000 miles ca... Of ads and that cookies may be used by Google for personalisation of ads and om646 engine problems cookies be! The head is made of light alloy and researching, especially about cars as. Remapping `` all you need to know about tuning the Mercedes C200 is its engine engines power your. Read my guide on oil dilution and my personal experience with oil leakage into the cold or hot.. Has two turbochargers ( in versions of more than 143 hp ), which provide a boost pressure of bar! Course, the 2.1 CDI OM651 diesel met Euro 5 emission standards reduced compression ratio of 17.5:1 a. And researching, especially about cars and a liquid-cooled alternator other hand, I have just recently purchased mercedes-benz! 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