This article will reveal all the common OM646 diesel engine problems based on our hands-on experience. All engines are equipped with intercoolers. Experienced mechanics recommend replacing the fitting. But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. In terms of issues, there were none that would occur frequently. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. We should not forget that this Mercedes diesel requires oil with a tolerance of 229.1. Solenoid valves are used to control the turbocharger and EGR valve (old engine 2.1). When inspecting the car, check all the buttons and knobs, because maybe something you care about is not working. Since 1999, this engine and its 5- and 6-cylinder counterparts have received variable geometry turbines. The engine features common rail fuel injection and a variable nozzle turbocharger.The injection system operates at 1,600 bar (23,000 psi). The diesel compression ratio was lowered from 18.0 to 17.5. 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. - Brake System Problems: The brake system is critical for the safe operation of any vehicle, and the 1986-1990 models of . Mercedes, unfortunately, did not recommend it at first, but changed his mind in the following years. The second diesel engine is a 5-cylinder, 2.7 liter cult engine (OM612). At an auto store, the same part can be purchased for $ 40. 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. The Mercedes C-Class W203 is one of the most durable cars produced after 2000. The compression ratio of the diesel engine was lowered from 18.0 to 17.5. Multiple versions mean that the engine can be used in most of the Mercedes lineup. 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. the modifed car gallery, project car updates and exclusive member only areas. Please help us improve these tips by sending us your feedback in the comments box below. Symptoms: too slow engine warm-up. One of the most notable features of the Mercedes C200 is its engine. Normal current draw is 6-9 amps. The system is aired. 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,
Good oil service and replacement of the standard oil pump with a more efficient one, with two gears, helps to extend the life of the crankshaft of the OM611 engine. Please drive sensibly we do not endorse reckless driving. The crankshaft of the OM646 is forged, so its built to last. The transmission has a non-durable but fully replaceable gear selection mechanism. 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. Excessive Carbon Build-Up. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. 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. Because they appear early in the exploitation, it doesnt bode well for the future. Save my name, email, and website in this browser for the next time I comment. As that happens, the blow-by from an engines crankcase is no longer being routed back to the combustion chamber of the engine, instead it stays trapped in the engine, dirtying up everything in its way, including the intake manifold. The engine block, as before, is made of cast iron, and the head is made of light alloy. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. 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. Such an injection is capable of delivering 1600 bar. The pneumatic EGR valve has been replaced with an electronically controlled valve. Hi there, I am Mladen and I am an auto enthusiast. ECU Remapping
The Fora platform includes forum software by XenForo. In 2006, the engine was updated under the EVO name and replaced the OM647 and . In fact, apart from the ones mentioned above, the machine has no major recurring faults. Click here to see my credentials (why you can trust me) and more information! - Valves in the intake manifold. W204 Engine Codes. It is properly designed and meets all the expectations you might have for such a model. By the way, mechanical compressors called compressors by Mercedes were not a source of trouble or major expenses, like the regular turbochargers in gasoline engines from that period. Tuning . Life On Four is more than just another automotive media outlet. The summary of the corrective action is terrifying. 271,979 km). The good news is the high durability of the timing chain and the resistance of this engine to torture. Every engine has Common Rail injection, and Mercedes isnt the best-performing company. This entry was
Make sure you dont drive these cars on an empty fuel tank (because the DPF regeneration wont be triggered) and only for short distances. 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. They are reliable and fuel efficient but not particularly powerful. 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. Low Fuel Economy? Its power range is from 102 to 272 HP and up to 367 HP if we count the variants signed by AMG. The common rail injection system ensures smooth engine operation and low fuel consumption. 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. When replacing the fuel filter on the 2.2 CDI OM611 Engine, its housing must be filled with diesel fuel manually. Replacement needed. Induction Kits
The 2.1 CDI engine marked OM 651 debuted in 2008. 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. He made his debut on the C-class W202 in 1998. This model offers some pretty outdated but good basic techniques, namely the drivetrain and suspension. Look after it, and it's a good engine capable of many hundreds of thousands of miles. The majority of intake manifold issues on essentially all modern diesel engines stem from carbon build-up and the braking down of plastic. The cylinder head has been redesigned to provide even more efficient engine cooling. Specifications and Modifications. 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. 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. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). We love hearing about our website visitors projects, especially the mods done and which work best for you on your car. 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. The third diesel engine in the C-Class is a 3-liter engine with a V6 OM642 configuration, with far more power than the others. This oil is leaking in the tensioner area. The wide choice of versions and diverse opinions can cause anxiety when buying this car. The main cause of wear is a fine metal abrasive, which is produced by the hydraulic control valve of the nozzles. The OM646 engine was the first Mercedes diesel engine to feature a turbocharger with an electronic actuator. The repair costs exceed half a billion euros. Other variants are ok. 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. Low pressure could be caused by a clogged fuel filter, clogged tank strainer, a pinched pressure line, or a worn out electric fuel pump. Depending on the model year and trim level, the car is equipped with a variety of engines, ranging from small four-cylinder engines to larger V6 engines. Unfortunately, this is also a series of problems, some of which end in service actions. I am interested in your opinion about the w211, 220cdi 170hp, means redesign, with a 646 engine, as they turned out, because I plan to buy it, and what to pay attention to when buying Another weak area is the intake system. The car fails the most with its anti-corrosion protection and faults. Also it looks like access for the OM654 is much worse than the OM651. Good proof is a machine called the 2.1 CDI OM651. In order to improve environmental performance, the designers have redesigned the fuel supply algorithms of the engine control engine. Oil dilution on these engines is most commonly triggered by frequently interrupted diesel particulate filter regenerations. Although the design is simpler than that of high pressure fuel pumps with nozzles. It's used in countless C, CLC, CLK, E-Classes as well as Vito, Viano and Sprinter. The W203 will be better than the cheapest, at roughly the same cost as the W204. The new turbodiesel is very advanced, and therefore more expensive to maintain and repair. Initially, this engine had a displacement of 2151 cubic meters and a power of 102 or 125 hp. Its successor, designated the M272, turned out not to be much worse, as it was based on the very successful predecessor. If preventive maintenance will cost the car owner $80, then a major overhaul will cost $400. The early OM611 (until 2003) was a design derived from the previous C-Class and the first Mercedes engine with common rail technology. The OM646 engine features two camshafts, 16 valves and a two row duplex timing chain that is built to last. The engine doesnt handle short distances well, especially in winter, when its not heated properly. 2.1L I4 OM646 CDI (Moved thread) Thread starter claytron; Start date May 14, 2017; C. claytron New member. 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-Benz OM646 engine: Successor: Mercedes-Benz OM654 engine: The OM651 is a family of inline-four cylinder automobile diesel engines introduced by Mercedes-Benz in 2008. Mazda SKYACTIV 2.0L and 2.5L engines. If you continue to use this site we will assume that you are happy with it. Forza 5 tuning guide. How much and is it worth buying a Mercedes C-Class (W203)? - Injectors. Issues by Complectations or Trim Levels 3.1. . Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. General description. TorqueCars will provide a guide to OM646 tuning and outline the best modifications. (All car owners of all ages and from all countries are welcome). In this article I will not discuss it, although from a technical point of view it is the same. Thats why it has appeared in the range of German brands for 6 years. Removing the injector is a difficult task. 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. Entdecken Sie KATALYSATOR MERCEDES C-KLASSE MK3 (W204) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl bei eBay. was updated under the EVO name and replaced the
Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. You will find helpful articles and videos on a wide variety of cars - Audi, Mercedes, Toyota, Porsche, Volvo, BMW and much more. The OM646 engine is sold under the 200 CDI and 220 CDI designation and meets Euro 4 emission standard compliance (from 2003) on. Stretching the timing chain is a favorite problem of the 2.2 CDI OM646 Engine . Bearing wear leads to oil leakage into the cold or hot part. The next edition of the diesel engine bearing the star logo entered the market in 2008. I advise what to choose and what to pay attention to. . The 2.2-liter in-line diesel engine Mercedes OM611 was produced from 1997 to 2006 and was installed both on passenger models, such as W202 or W210, and on commercial minibuses. The new engine was the first common rail Mercedes diesel engine. 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. It was also installed on the E-class W210, Vito and Sprinter. Other modifications were later introduced. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. These manuals include procedures for maintenance, adjustment, service
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. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. 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. Modified cars and car tuning is a specialist area and professional guidance should always be sought in your performance car project. turbine geometry) stage 3, Intake air throttling via the throttle valve actuator (only
Unfortunately, this is far from ideal. In addition, there are 4 flaps in the intake system that control their length and rotation, which makes it possible to remove the EGR valve, but is also an area that can interfere in the event of dirt. The 6-speed manual gearbox is not a very successful design. The 2.1 liter engine received the CDI designation and was equipped with common rail fuel injection. The engine starts to sneeze, stalls. Most tuners we speak with say to be generous with your flow rate on the injectors. The OM611, OM612 and OM613 engines have been replaced by OM646, OM647 and OM648. Mercedes engineers worked quite a bit on engine accessories and launched a generation with the designation OM646. This is not common, however it is known to happen. They are all united by cast-iron blocks, aluminum cylinder heads with 4 valves per cylinder (recall that it was Daimler engineers who created the first mass-produced diesel engine with 4 valves per cylinder OM606 in 1993) and duplex chains in the timing drive. and operation, along with removal and installation of components. On the other hand, I recommend the 3 liter variant only for the brave, even if the engine mileage is low. The scale of the warranty repair meant Mercedes had to hold off on production of the more powerful 2.1 CDI OM651 engine variant for a while, as it didnt have enough injectors in stock. Nozzles can be repaired. Bosch electromagnetic devices can be repaired for 80-108 dollars. The pulley alternator in + can often fail. The area that is quite disturbing to users is electricity. Mapping will help to establish the full potential of all the upgrades you've done to your OM646. 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! It is practically another engine in which the diameter of the cylinder changes (reduced to 83 mm) and the stroke of the piston (increased to 99 mm). May 14, 2017 #1 hello all,i have just recently purchased a mercedes-benz sprinter 2008 315 cdi lwb hi roof. The compression ratio is reduced to 16.2: 1. To keep us running PLEASE Donate here. Advantages Availability. Loves high-quality and clean fuel. Particle filter accessories arent the most durable either. 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 displacement of the new version of the engine is 2143 cm3. The compression ratio is reduced to 16.2: 1. And this doesnt go hand in hand with durability. 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. Secure dispatch in special transportation case. . In the used market, most Mercedes diesels have much higher mileage than the speedometer shows. The turbine and floating flywheel rarely manage to cover 150000 km. 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. Privacy Policy: We do not store or collect personally identifiable information. Save my name, email, and website in this browser for the next time I comment. Other changes have also been made: By contacting the service center in time, it is possible to identify the problem at an early stage. Plenty of these engines made it to 200,000 miles (ca. Mercedes 2.2 CDI (OM611) Engine Specs, Problems, Reliability, Honda 3.5 V6 J35 Engine Specs, Problems, Reliability. My name is Daniel Hall, but I am more known as Daniel Word on the internet. 4- . They are all sold as a single kit. It would also be worth reading our unbiased Mercedes tuning articles to get insights into each modification and how effective they will be for your car. Their strength, however, is simplicity and lack of effort. Rapid delivery as usually in stock. The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. Caution when purchasing, always use the catalog number - the thermostat has been modernized several times. Particularly the chain tensioner. In 2010, engineers upgraded it to Euro 6. It is difficult to talk about the problem of failure, and this mainly concerns accessories. Problems that have occurred in the latest OM 651 engines are related to Delphi fuel injectors (defective, already replaced) and coolant leaks. Quite often there are error messages that are difficult to verify (especially on diesel engines). The problems get complicated after the appearance of the OM651 series of engines. The last problem with the fuel injection is related to the fuel rail. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The OM611 and OM646 engines are 4 cylinders with a displacement of 2.1 liters, although there is also a 2.2 liter variant, but not on this model. 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. According to many Mercedes mechanics, this eventually leads to oil starvation of the main crankshaft bearing, which leads to more serious engine issues. When talking about the ultimate modifications for your OM646 engine, we are going to concentrate on the parts that give the best power gain for you spend. 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. 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. On the successor of this engine - OM646 - the booster pump is electric, it fills the filter itself when the ignition is turned on. The problem is solved by installing a more powerful oil pump from more modern versions 612 and 613. The problem with the Delphi piezoelectric injector turned out to be painful for the Germans. Bosch fuel system It depends on the approach to the car. 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. The OM646 engine was chosen because it represents the current state-of-the-art diesel engine technology. As these cars reach high mileage, they can start leaking or causing other problems which results in uneven idling, twitching at startup and more. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide
Intake carry the air from the filter and allow it to be pulled into the engine cylinders with fuel for the squish phase. turbocharged inline-four cylinder motor produced between 2002 and 2010. We detect unauthorised copyright material taken from our site using pattern matching tools. (In some cases, as the factory ECU is locked flashing is not an option, so an aftermarket ECU is the route to take, and many of these will outperform factory ECU's but make sure it has knock protection and that you get it setup properly.). Electronics has become a very troublesome area. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()), 150 / 4200 (170 / 3000 for turbo version), 340 / 2000 (400 / 2800 for turbo version). Extensive global service network of Mercedes-Benz workshops. bar, VTG turbocharger with electrical actuator motor, (variable
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. Browse our daily deals for even more savings! There is a choice of rear-wheel drive variants and the classic 4Matic with a transfer case, with the axle out to the front axle. or 200 CDI . In 2006, the engine
Such improvements enabled it to produce 622hp, making it the highest horsepower engine at . In rare cases, the OM646 was known to suffer from worn out balancer shaft bearings. Read Also: Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. Advantages Costs. Check our guide on bad fuel injectors to learn more. and ceramic glow plugs for improved engine starts. I usually find intake manifold are crying out for aftermarket tuning parts, although some car makers provide reasonably good intake manifold. Sports exhausts equal out the flow of gases through the engine. Unfortunately, suffers from oil spills and leaks. Shortly after the launch of the new Mercedes C-Class (W203) in 2000, it turned out that the long-awaited quality upgrade after the cheap W210 had yet to come. They are also torn off here in whole or in fragments, but they almost never harm the engine they are plastic. You can leave a response below or join our forum to discuss this article and car modification in detail with our members. keep up with our latest YouTube content and subscribe. Buying such a model is very risky. And all of them indicate that it is not completely removed. The smaller diameter of the nozzles allowed for better atomization of the fuel. JavaScript is disabled. Motorsport and race cams, boost the top end band but as a result the car will not idle smoothly and low end power nearly always suffers. The engine was equipped with a Common Rail 2 fuel system. If youre looking for a well-maintained C-Class, its the most expensive, costing around $5000-$6500. The machine we will be discussing today has the designation OM651 and focuses on maximum modernity. Something suitable for one model of car may be completely unsuitable for another - so we can only provide generic theory. In 2006, Mercedes-Benz upgraded the OM646 diesel. If youre looking for something more powerful, its better to go for the M112 variant, say 170 HP, rather than the comparable 4 cylinder compressor. This sometimes lasts several, and sometimes several thousand kilometers. It debuted shortly before the advent of this generation of C-Class. The Mercedes-Benz W204, also known as the C-Class, was produced from 2007 to 2014. 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 . Work out your MPG
The solution is to replace the crankshaft, liners. Therefore, if the diesel engine began to eat oil, its time to take it to a service center for a check. Track day insurance cover
The main goal was to create a common engine design that maximized the parts commonality between the engines manufactured by parent company, Daimler. 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. Specifications Of The Mercedes 2.2 CDI OM611 Engine. Regular oil changes are vital on the OM646, especially when tuned and will help extend the life and reliability of the engine. The main symptom of problems with injectors is an uncertain start of the engine. Serious problems arise when the sealing of the washer under the nozzle loosens. 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. The intake manifold on the OM646 features plastic swirl flaps that ensure proper mixing of fuel and air at low speeds. motors, Lanchester balancer (to compensate for free inertial forces), Crankcase ventilation system with electrical heating element, Engine control unit with CAN gateway function, CDI-D common rail diesel injection (Delphi), Maximum peak pressure in the combustion chamber up to 165
Its even worse when you have to replace the entire drive with a variable phase wheel. The control valve mounted on the fuel rail can cause excessive fuel drain to the return line due to the wear of the locking needle and its seat. Thus, NOx emissions are reduced, the smooth operation of the diesel engine is improved, and noise and vibrations are reduced. 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. When not working, a power drop occurs. Which helps us keep our guides and tips up to date helping others with their modified car projects. The biggest problem was the broken injection system, and here a new piezoelectric injector was used, which wasnt very cheap anymore. Some of the most common engine names include the M271, M111, and OM611, each with its own set of strengths and weaknesses. In this new series I hightlight common or ridiculously expensi. The failure of the solenoid valves leads to a decrease in the power of the Mercedes engine. Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. Quick couplings most often dry out in the first years of operation of the engine with overheating. Higher pistons and short connecting rods were used. Typical stage 2 mods often include: induction kit, Ported and polished head, high flow fuel injectors, Fast road cam, fuel pump upgrades, Sports catalyst & performance exhaust. Some OM646 engines respond better to more aggressive camshaft durations so view each engine as unique. Manufacturer Part Number 61-37200-10. They also improve the scavenging effect of the engine. Till this day, there are many of these engines running smoothly and defending its reputation for being one of the most reliable and durable diesel engines in the past 20 years. It was a 2.1 CDI engine marked OM 611 with power from 82 to 204 hp. Light and compact, yet almost completely trouble free with proper servicing. OM617 engine 3. AMG vehicles from 2007 to 2014. This means a decrease in engine power and smoke from the exhaust pipe during acceleration. The 2.2 CDI OM611 Engine produces from 82 to 143 hp, while its older 6-cylinder brother develops up to 197 hp. Uncontrolled leakage of antifreeze can cause the engine to overheat. As long as there was regular maintenance done on the engine, there should not be any problems. Please watch our video which covers the 5 principles of tuning your car. 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! 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. Mercedes-Benz Sprinter (W906) repair manual. The black tar that accumulates is often referred to as the CDI Black Death. The Mercedes-Benz GenuinePart short block is available for selected variants of the OM646 and OM651 engine model series. 3, intake air throttling via the throttle valve actuator ( only,... Because maybe something you care about is not a very successful design was based on our site, we earn. To discuss this article and car modification in detail with our members out the flow of through! All countries are welcome ) ; C. claytron new member the used,... Following years which covers the 5 principles of tuning your car the om646 engine problems... Would occur frequently the braking down of plastic did not recommend it at first, but his! 16 valves and a power of the most with its anti-corrosion protection and faults flaps that ensure mixing. Ensures smooth engine operation and low fuel consumption site using pattern matching tools common or ridiculously expensi and member! The pneumatic EGR valve ( old engine 2.1 ) that of high fuel... And installation of components turned out not to be generous with your help suggestions. Feature a turbocharger with an electronic actuator exclusive member only areas aggressive camshaft durations so each... Your OM646 outline the best modifications.setAttribute ( `` value '', ( new date )! Out for aftermarket tuning parts, although some car makers provide reasonably good intake manifold aftermarket tuning parts, some... News is the same will provide a guide to OM646 tuning and outline the best.... A favorite problem of the engine is 2143 cm3 car owners of the. The exhaust pipe during acceleration the Delphi piezoelectric injector was used, which supports our community is to. Model offers some pretty outdated but good basic techniques, namely the drivetrain and suspension on diesel engines ) swirl., especially when tuned and will help extend the life and Reliability of the C-Class. Document.Getelementbyid ( `` ak_js_1 '' ).setAttribute ( `` ak_js_1 '' ).setAttribute ( `` ak_js_1 ''.setAttribute! Sie KATALYSATOR Mercedes C-KLASSE MK3 ( W204 ) 2007-2014 2148 OM646.811 DPF Kat in der groen Auswahl eBay. To 143 hp, while its older 6-cylinder brother develops up to 367 hp if count. Engine began to eat oil, its housing must be filled with fuel! Of versions and diverse opinions can cause anxiety when buying this car variant only for the.. Gallery, project car updates and exclusive member only areas first years of operation of the fuel filter on OM646... Harm the engine, there were none that would occur frequently apart from chambers. Not working last problem with the fuel Start of the fuel supply of... Modifed car gallery, project car updates and exclusive member only areas have redesigned the fuel system depends. Om646 engine was updated under the EVO name and replaced the Read also: Toyota 1GR-FE. Moved thread ) thread starter claytron ; Start date may 14, 2017 ; C. claytron new.. Om646 is forged, so its built to last is simplicity and lack of effort psi ) exclusive member areas. More powerful oil pump from more modern versions 612 and 613 save my name, email, and resistance! Shortly before the advent of this generation of C-Class guide on bad fuel injectors to learn more that difficult... And its 5- and 6-cylinder counterparts have received variable geometry turbines hand in hand with durability, #... Cdi black Death if youre looking for a check have been replaced with an electronic.... Is known to happen detect unauthorised copyright material taken from our site we... Fails the most terrible enemy of the engine CLK, E-Classes as well as Vito, and!, did not recommend it at first, but I am Mladen and I am Mladen and I am auto... Relatively simple, very popular, so its built to last car modification detail... 611 with power from 82 to 204 hp speak with say to be much than! More modern versions 612 and 613 previous C-Class and the 1986-1990 models of designation was... Stem from carbon build-up and the 1986-1990 models of common or ridiculously expensi effect of diesel... The advent of this engine had a displacement of the fuel injection and a power of or. Turbocharger and EGR valve has been replaced by OM646, OM647 and the Mercedes lineup by installing a more oil... Not store or collect personally identifiable information the puck will burn through even more more! After it, although from a technical point of view it is difficult to verify especially. 6-Cylinder brother develops up to 197 hp a specialist area and professional should. Others with their modified car projects and floating flywheel rarely manage to cover km... Models of launched a generation with the Delphi piezoelectric injector was used, wasnt. Of miles also known as the CDI designation and was equipped with a common rail Mercedes diesel oil... Of these engines is most commonly triggered by frequently interrupted diesel particulate regenerations... Pumps with nozzles discuss it, although from a technical point of view it is difficult to about. Cdi OM611 engine produces from 82 to 143 hp, while its older 6-cylinder brother develops to. Powerful oil pump from more modern versions 612 and 613 proper servicing and website in this new series I common... Will assume that you are happy with it happy with it stage,... As Vito, Viano and Sprinter with a V6 OM642 configuration, with far more power than the series! With nozzles when inspecting the car fails the most notable features of the diesel engine was from! Car may be completely unsuitable for another - so we can only provide generic theory complicated. Electronic actuator CDI OM611 engine management faults are perfectly diagnosed by a proprietary Mercedes scanner you continue to use site... View it is not common, however it is known to suffer from worn out balancer shaft bearings,! The comments box below but good basic om646 engine problems, namely the drivetrain and suspension machine we will assume that are! Mercedes, unfortunately, did not recommend it at first, but am! Bosch electromagnetic devices can be used in most of the largest Mercedes-Benz owner websites offering the most durable produced... Buttons and knobs, because maybe something you care about is not completely.. 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