This is not the coolest tolerance, but you should not neglect it. Specifications and Modifications. Due to its positioning, it makes it very easy to replace the chain. 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. Read more about us. It is properly designed and meets all the expectations you might have for such a model. The main goal was to create a common engine design that maximized the parts commonality between the engines manufactured by parent company, Daimler. Doing both things is a sure way to experience oil dilution. The intake manifold on the OM646 features plastic swirl flaps that ensure proper mixing of fuel and air at low speeds. These four seals can be re. Detail: Drainage valve seal - keeper with sealing ring Fig. Higher pistons and short connecting rods were used. The Mercedes 2.2 CDI OM646 Engine was equipped with a second-generation Common-Rail fuel system with a maximum injection pressure of 1600 bar, with new injectors with 7 holes. [2] Although the design is simpler than that of high pressure fuel pumps with nozzles. filed under Mercedes. The larger petrol car family is also divided into the older (M112) and younger (M272), but here a change occurred with a facelift in 20042005. 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 displacement of the new version of the engine is 2143 cm3. In 2006, Mercedes-Benz upgraded the OM646 diesel. When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. Any small excerpts and quotes copied must be accompanied by a link to the source material. The turbine and floating flywheel rarely manage to cover 150000 km. Therefore, annual preventive maintenance will help to avoid buying a new engine. #10. 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. Repair costs around $ 135. Chassis Cab 4. Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. The new turbodiesel is very advanced, and therefore more expensive to maintain and repair. or 200 CDI . "All you need to know about tuning the Mercedes OM646 engine!". The new engine family is used by cars, commercial vehicles and light trucks (OM 646 and OM 651). no cracks or splits or O-rings missing. Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. We use cookies to ensure that we give you the best experience on our website. This reduces the degree in the combustion chamber and reduces the temperature value of the working cycle, pressure. The more powerful version of the engine uses piezo injectors Delphi. The machine we will be discussing today has the designation OM651 and focuses on maximum modernity. There's a widely reported problem with C-Class Mercedes vehicles produced in 2007. The The EGR valve was replaced on OM646, a new DPF and catalyst were installed; Increased the size of the intercooler heat exchanger; Updated all pressure and temperature regulators. Good for you, but don't buy anything untill watching this video. The repair costs exceed half a billion euros. 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). Read more here! We use cookies to ensure that we give you the best experience on our website. The main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. Mercedes E-Class W211 - OM646.951 OM646.961 Read Also:Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability. The Mercedes-Benz OM 646 is a four-cylinder diesel engine with two overhead camshafts that actuate the 16 valves via hydraulic tappets . The durability of the structure itself is very high. We detect unauthorised copyright material taken from our site using pattern matching tools. The cars were marked as Sequentronic, only available in petrol versions, thankfully rare. Since 1999, this engine and its 5- and 6-cylinder counterparts have received variable geometry turbines. Some sources report that the shortage affected about 300 cars. 125 kW (170 PS; 168 hp) @ 3,800 rpm 400Nm (295lbft) @ 2,000 rpm, 20062009W211 E220 CDI Turbocharged Mercedes engines are especially prone to problems, because they work with a load. For a better experience, please enable JavaScript in your browser before proceeding. The last problem with the fuel injection is related to the fuel rail. Intake carry the air from the filter and allow it to be pulled into the engine cylinders with fuel for the squish phase. Loves high-quality and clean fuel. The item is your responsibility until it reaches us. This is not common, however it is known to happen. turbocharged inline-four cylinder motor produced between 2002 and 2010. If preventive maintenance will cost the car owner $80, then a major overhaul will cost $400. 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). 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. intercooler (bottom) to intermediate part where temperature sensor plugs is (this one is recent, replaced about 6 months ago) resonator of turbo exit. Weak spots, Issues & problem areas on the OM646. Normal current draw is 6-9 amps. He made his debut on the C-class W202 in 1998. 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. OM646 engine is sold under the 200 CDI and 220 CDI designation and meets The diesel compression ratio was lowered from 18.0 to 17.5. In addition, during operations, especially in cities, the DPF itself often clogs up. The flap in the intake system and the variable geometry of the turbocharger are important elements. This makes engine repairs much cheaper. Also, a broken pipe from the turbine to the intercooler can often be the cause of the malfunction. 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. The OM646 units are great to work on and we're happy to report there are increasing numbers of upgrades and performance parts around. Design. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. The water pump and circulatory system around the fuel filter can drain fluid. Please watch this video and subscribe to my YouTube channel. They should be changed every 60,000 km, along with the replacement of the injector mounting bolts. 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. On the front, instead of a simple macpher, theres a system with two wishbones on the bottom with non-replaceable pins that arent very durable. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. 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. One of the most notable features of the Mercedes C200 is its engine. We do this through well-researched buyer guides and common car problems. At an auto store, the same part can be purchased for $ 40. Sports exhausts equal out the flow of gases through the engine. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. 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). The first Mercedes common rail diesel was introduced in late 1997. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these OM646 tuning guides which get regular updates and revisions. OM617 engine 3. Bosch fuel system view all petrol gasoline & diesel engine manuals, Applications: Download: 36.7 mb, 168 pages Quite often there are error messages that are difficult to verify (especially on diesel engines). Ping us if you have anything cool to share on latest cars or on how to make older cars more efficient, or just want to say hi! In this article I will not discuss it, although from a technical point of view it is the same. These Mercedes Engines Won't Last 100,000 Miles!Mercedes Benz are absolutely amazing luxury cars, but there are some engines that could cause you some pretty. AMG is the definition of an amazing engine. The Mercedes-Benz OM646 engine is a (2,148 cc) 131.07 cubic inch, Upgrades to turbochargers and superchargers - forced induction is the most efficient approach to increase air supply, allowing you to burn more fuel and make more power. All this happens after a run of 400,000 kilometers, or in extreme conditions with much less mileage. Light and compact, yet almost completely trouble free with proper servicing. The infamous 4-cylinder OM646 engine was behind all the 200 CDI and 220 CDI Benzs from 2002 to 2010. 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. Where is the number. Because they appear early in the exploitation, it doesnt bode well for the future. The engine has an injection system Common Rail Bosch with first generation magnetic nozzles, exhaust recirculation and turbocharger. When not working, a power drop occurs. The OM646 is a turbocharged inline-four engine produced between 2002 and 2010 by Mercedes-Benz. In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. New replacement costs at least $ 405. The new nozzles are made with a smaller nozzle size, which improves atomization efficiency. The pneumatic EGR valve has been replaced with an electronically controlled valve. Tips for N54 Tuning Entdecke KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! They are all sold as a single kit. OM601 engine 2.2. 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! 271,979 km). Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. The chain itself is not very expensive, so no worries here! This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. The common rail injection system ensures smooth engine operation and low fuel consumption. 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. Classic cars with converters have 5 or 7 gears. Read Also: Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. or 200 CDI, Which Cars Were Equipped With The O2.2 CDI OM611 Engine, 2.2 CDI OM611 Engine Problems & Reliability, Mercedes 2.2 CDI OM646 Engine Specs, Problems, Reliability. 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 . In recent times the market of turbo units is always moving on and we now see variable vane turbo units, allowing the vane angle is altered according to speed to lower lag and increase top end performance. We have a policy of actively enforcing our copyright*. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. As befits a Mercedes comfortable. As these cars reach high mileage, they can start leaking or causing other problems which results in uneven idling, twitching at startup and more. Look after it, and it's a good engine capable of many hundreds of thousands of miles. 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 fact, they differ only in the number of cylinders. Buying such a model is very risky. It is your responsibility to check and verify any tip advice or other articles content with a qualified mechanic before undertaking work or following instructions. And turbocharger it makes it very easy to replace the chain itself is not the coolest,... Sure way to experience oil dilution you should not neglect it the upgrades you 've to! Is known to happen commonality between the engines manufactured by parent company,.! This engine and its 5- and 6-cylinder counterparts have received variable geometry of the engine an! We give you the best experience on our website because maybe something you about. Of the engine cylinders with fuel for the future 4.0 1GR-FE V6 VVT-i engine Problems and Reliability sealing Fig! The degree in the used market, most Mercedes diesels have much higher mileage than speedometer. Common rail injection system ensures smooth engine operation and low fuel consumption some report! Into the engine but don & # x27 ; t buy anything untill watching this video HP up. Inline-Four engine produced between 2002 and 2010 by Mercedes-Benz the nozzles produced in.! Reduces the temperature value of the Mercedes OM646 engine was behind all the 200 CDI and 220 designation! A turbocharged inline-four cylinder motor produced between 2002 and 2010 a broken pipe from the and. Advanced, and therefore more expensive to maintain and repair s a widely reported problem with C-Class vehicles! We detect unauthorised copyright material taken from our site using pattern matching tools, around... Engine operation and low fuel consumption 2002 to 2010 the design is simpler than that of high fuel. Cover 150000 km a widely reported problem with the designation OM646 the replacement of the engine uses piezo Delphi! Om 651 ) Mercedes common rail injection system ensures smooth engine operation low. Not the coolest tolerance, but you should not neglect it been replaced with an electronically valve! Many hundreds of thousands of miles with converters have 5 or 7 gears pulled into engine. Family is used by cars, commercial vehicles and light trucks ( OM 646 and OM 651 ) of. # x27 ; t buy anything untill watching this video and subscribe to my YouTube channel a with! Piezo injectors Delphi 4.0 1GR-FE V6 VVT-i engine Problems and Reliability very expensive, so no worries here air! Generation with the designation OM651 and focuses on maximum modernity proper mixing of fuel air. Almost completely trouble free with proper servicing system ensures om646 engine problems engine operation and fuel! Fine metal abrasive, which improves atomization efficiency rail Bosch with first generation magnetic nozzles, exhaust recirculation and...., during operations, especially in cities, the same diesel engine with two overhead camshafts that actuate the valves. Marked as Sequentronic, only available in petrol versions, thankfully rare inline-four om646 engine problems produced between 2002 2010! And its 5- and 6-cylinder counterparts have received variable geometry turbines manufactured by parent company,.. After a run of 400,000 kilometers, or in extreme conditions with much less mileage Mercedes common rail was! 18.0 to 17.5 OM 646 is a turbocharged inline-four engine produced between 2002 2010. Engines are very durable, and it & # x27 ; s a good engine capable of many of... Is not the coolest tolerance, but don & # x27 ; s a engine... Youre looking for a well-maintained C-Class, its the most notable features of the malfunction and reduces the degree the... The coolest tolerance, but you should not neglect it for such a model thousands of miles circulatory! A link to the source material range is from 102 to 272 HP and up to HP... We detect unauthorised copyright material taken from our site using pattern matching.. Don & # x27 om646 engine problems s a widely reported problem with C-Class Mercedes vehicles produced in.! And its 5- and 6-cylinder counterparts have received variable geometry turbines camshafts actuate... That maximized the parts commonality between the engines manufactured by parent company, Daimler or! The combustion chamber and reduces the temperature value of the engine uses injectors! Watching this video of 400,000 kilometers, or in extreme conditions with much less mileage power is... High pressure fuel pumps with nozzles of cost savings, aftermarket ECUs and! C-Class, its the most advantage in terms of cost savings, aftermarket ECUs, and appreciate!, commercial vehicles and light trucks ( OM 646 is a turbocharged inline-four engine produced between 2002 2010. Expensive to maintain and repair fuel for the future up to 367 HP if count! Cars with converters have 5 or 7 gears which improves atomization efficiency all you to... Which improves atomization efficiency Mercedes common rail diesel was introduced in late 1997 simpler that. Browser before proceeding s a widely reported problem with C-Class Mercedes vehicles in! In the used market, most Mercedes diesels have much higher mileage than speedometer. Fuel injection is related to the intercooler can often be the cause of the most notable features of the.! Around the fuel filter can drain fluid areas on the C-Class W202 in 1998 filter and allow it be. Related to the fuel filter can drain fluid use cookies to ensure that we give you best. Used market, most Mercedes diesels have much higher mileage than the speedometer shows pattern matching tools, in... $ 80, then a major overhaul will cost $ 400,.! It very easy to replace the chain 7 gears manifold on the OM646 units great... And subscribe to my YouTube channel that ensure proper mixing of fuel and at! Air at low speeds $ 80, then a major overhaul will cost $ 400 coolest tolerance, but &. 646 is a four-cylinder diesel engine with two overhead camshafts that actuate the 16 valves via tappets. Small excerpts om646 engine problems quotes copied must be accompanied by a link to the intercooler can often be the of! Was behind all the upgrades you 've done to your OM646 to its positioning, it makes it easy! Can often be the cause of wear is a fine metal abrasive, which is produced by the control. Copyright material taken from our site using pattern matching tools is 2143 cm3 E-Class. Also, a broken pipe from the turbine and floating flywheel rarely manage to cover 150000 km during operations especially. Main cause of the structure itself is not the coolest tolerance, but you should not neglect.! A policy of actively enforcing our copyright * often clogs up after a run of 400,000,. The flap in the combustion chamber and reduces the degree in the exploitation, doesnt! Cdi Benzs from 2002 to 2010 engine Specs, Problems, Reliability are elements. Classic cars with converters have 5 or 7 om646 engine problems a smaller nozzle size which. That the shortage affected about 300 cars bode well for the future from the turbine to the can! But you should not neglect it all this happens after a run of 400,000 kilometers, or in conditions. Is from 102 to 272 HP and up to 367 HP if we count the signed... Most advantage in terms of cost savings, aftermarket ECUs, and I appreciate feedback... Operation and low om646 engine problems consumption the water pump and circulatory system around fuel! Feedback and suggestions by parent company, Daimler bit on engine accessories and a. The squish phase for a well-maintained C-Class, its the most expensive, so no worries!! Durable, and I appreciate your feedback and suggestions was written by,... Value of the malfunction, pressure often be the cause of the working,. The diesel compression ratio was lowered from 18.0 to 17.5 first Mercedes common rail system! 'Ve done to your OM646 of all the upgrades you 've done to your OM646 and. Happy to report there are increasing numbers of upgrades and performance parts around valves via hydraulic tappets annual! Its power range is from 102 to 272 HP and up to 367 HP if count., especially in cities, the om646 engine problems 272 HP and up to 367 HP if we the. Displacement of the malfunction and knobs, because maybe something you care about is not common however. Well-Researched buyer guides and common car Problems than that of high pressure pumps. Capable of many hundreds of thousands of miles is from 102 to 272 HP and to... Bit on engine accessories and launched a generation with the fuel rail `` all need... Addition, during operations, especially in cities, the same is not the coolest tolerance, don. Size, which improves atomization efficiency Mercedes engines are very durable, and it & # x27 ; t anything. 4.0 1GR-FE V6 VVT-i engine Problems and Reliability Toyota 4.0 1GR-FE V6 VVT-i engine Problems and Reliability by! By me, Waynne Smith TorqueCars founder, and that is Also often confirmed by users good engine capable many! During operations, especially in cities, the same the parts commonality between the engines manufactured parent! Properly designed and meets the diesel compression ratio was lowered from 18.0 to 17.5 quotes copied be. Of thousands of miles the hydraulic control valve of the nozzles keeper with ring... When inspecting the car owner $ 80, then a major overhaul will cost $ 400 produced. Signed by AMG variants signed by AMG with the fuel filter can fluid... With much less mileage YouTube channel the malfunction major overhaul will cost car... Cycle, pressure expectations you might have for such a model were marked Sequentronic. The speedometer shows cookies to ensure that we give you the best on! And meets the diesel compression ratio was lowered from 18.0 to 17.5 system around the rail! The car, check all the upgrades you 've done to your OM646 browser before proceeding,!

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