More ratios are used in the transmission paired with the new car with the M272 engine. Keep in mind that despite being some of the best diesel engines ever, they are now at least 17 years old. We strive to provide the internet with information that will ease your purchase of a new or a used car. Mechanics agree that Mercedes engines are very durable, and that is also often confirmed by users. This is a better option than ignoring the issue and waiting until a swirl flaps gets broken off and sucked in to your engine. What are the common problems in the 2.7 litre Mercedes Benz diesel engine? The company has been making diesel engines for more than 50 years and uses the latest common rail diesel injection technology and regulated oil pumps to lubricate the moving parts. Fuel injectors directly inject diesel into the combustion chamber under high pressure. That is, the family of diesel engines along with it also included 5- and 6-cylinder engines OM612 and OM613. Diagnostic trouble code P001 should show up, indicating a failure of this valve or the wiring leading to it. Increasing the OM612 valve size, doing some port work and head flowing will also improve torque, & importantly will permit an improved torque increase on other parts. Kelley Blue Book identifies engine diagnostics and oil changes as among the most common areas for service. Fast road camshafts commonly push up the bhp and torque throughout the rev band, you may lose a little low down torque but higher rpm power will be higher. is around 550 lbs or 250 kilograms. Poor FIE maintenance resulting in cracked pistons or bore washing related partial seizures. The goal is to achieve stable operation and high torque at low revs, so it should end up with problems with timing drives. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. A faulty MAF sensor on the OM612 engine will lead to rough starting, erratic idling behaviour, engine stalling after starting, overall erratic engine behaviour and even black exhaust notes due to rich air/fuel mixture. The newer engine has computer control, but the fuel computer seems like it could be easily retained / heatshielded inside the engine compartment. So, after the Fiats 1.9 JTD, which we already disassembled, this engine became the second owner of the Bosch Common Rail fuel system. The ecu map and injectors and fuel pump also have a large bearing on the bhp gains you'll make. Please watch our video which covers the 5 principles of tuning your car. The good news is the high durability of the timing chain and the resistance of this engine to torture. My name is Daniel Hall, but I am more known as Daniel Word on the internet. Combi with so round that it has a bit bigger 470 l for roller shutter. All of my oil changes were with M1 ESP type M. It's the only oil easily obtained that meets MB spec 229.51. Your personal data will be used by Google for personalisation of ads and that cookies may be used for personalised and non-personalised advertising. Fuel Rail pressure regulator!, sticky and degraded.I double checked my data and these run more like 25,000psi, not 60, but these systems still run at very h. Mercedes Benz started using Common rail diesel injection in 1997. Equipment failure is caused by mileage and wear. Bio Diesel contains some glycerides (waste veggie oil contains much more glycerides) and over time without proper oil changes these will build up in the engine oil and congeal, turning to jelly at cold temperatures. The carbon deposits can block the movement of the swirl flaps. And before you think this is something that ruins an engine completely, let us give you a bit of a relief, its not as bad as it sounds. The engine is turbocharged and intercooled. Classic cars with converters have 5 or 7 gears. Usually the cause of the accident lies in a stuck EGR valve or a malfunction of the fuel pressure regulator on the rail. While they may sound good, theyre almost always perceived as a nuisance. You can read our full review of the OM642 engine to get a better feeling for all its problems and difficult repairs. Most 2.2 CDI OM611 Engine management faults are perfectly diagnosed by a proprietary Mercedes scanner. 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. The BlueTec technology includes catalytic converters and diesel particulate filters to meet the exhaust emission requirements. 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. Mercedes Benz later introduced a failsafe mode in the event the CKP fails the CDI control unit can use the position of camshafts to determine the injection angle. Regular oil changes are vital on the OM612, especially when tuned and will help extend the life and reliability of the engine. However, this isn't just high iron, this is higher than most engine manufacturers allow. How many quarts of oil does a Mercedes Benz E350 take. So please pay attention to this article. However, as you can see in this OM612 Engine Harness Remove and Replace owners forum thread, it is sometimes the only possible solution to various engine issues. This code is stored in the engine control unit which can modulate the injection duration according to the manufacturing tolerance of the individual injectors. The blow by contains unburnt fuel and it mixes with the oil. Tuning in Forza. Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine. 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. Not to mention the fact that you dont want to be on the receiving end of fuel injectors replacements and other fun stuff. It also has the same problem with oil leakage as the M111. Is Mercedes Benz considered a luxury brand? Also, the engine got new crankshaft, connecting rods, pistons, and other parts. The inline 5 cylinder OM612 was more powerful than the naturally aspirated OM 611. Well now you are posting things of a wider picture. The engine keeps on turning until the battery is dead. We deliver enhanced functionality for your browsing experience by setting these cookies. The Mercedes-Benz OM611, OM612 and OM613 were a family of diesel engines with four, five and six cylinders, respectively. I am actually starting a case with MB. Problems with the variable intake manifold flaps. Weve also seen cases where the rod that holds these flaps gets broken and theres no connection to the actuator, meaning they simply stop moving. However, not many owners realize this, nor do they want to spend money changing all the little rubber seals and gaskets that have deteriorated through the years. If you reject them, enhanced functionality will be unavailable. DPF cleaning Lets first do a favour to all of you that are in a rush. 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. For a better experience, please enable JavaScript in your browser before proceeding. Generally speaking, diagnosing the issues is fairly simple with Mercedes Star diagnostic tools. Dodge. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. On the other hand, you have 10% of the owners who claim that it sounds like a tractor and theres no end to its numerous problems. See further information and configure your preferences. The most common problem with EGR valves on the OM612 engine is leaking. The 2.9 L (2,874 cc) was used in the 310D and 410D Mercedes-Benz T1 and the Phase 1 Mercedes-Benz Sprinter vans (where it was modified for direct injection), the Ssangyong Musso, Korando and Rexton range and even in the 1996-1999 models of the E-class. The first generation Bosch CP1 fuel pump is also very reliable. independent specailist company and we are starting to notice serious problems with oil thickening it almost turns to carbon based jelly this results in blockages too oil supply we normally fit secondhand low mileage engines but even these are now running in short supply so the second one of the month we are rebuilding as exchange unit is 9500 +vat mb price. We and our partners use cookies to Store and/or access information on a device. Adding a supercharger or additional turbo will make large torque gains, although harder to configure. See also. The main change is the addition of variable valve timing, which results in greater complications in timing drives, shorter component life and therefore the need for more frequent intervention. The OM648 is a 3.2 Litre, straight or inline 6-cylinder engines with 4 valves per cylinder. We won't be swayed by popular OM612 parts, they need to be cost effective. Well tell you all about as we continue. Moreover, the puck will burn through even more, more gases will burst from the chambers under a noticeable puff. How much and is it worth buying a Mercedes C-Class (W203)? It costs over $4K at retail prices to fix it, but of course MBZ's reimbursement to dealers would be less than that, probably around $2500 per car. (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.). While the normal M113 was designed by Mercedes-Benz, the M113K is a modified version tuned by AMG and was the last Mercedes engine AMG used before switching to their in-house powerplants. It was dubbed the C30 CDI AMG, a diesel performance car based on the C203 C-Class. Read more here! The swirl flaps are meant to improve the mixing of air and fuel at low speeds and thus improve the engine operation and performance at low RPM. I do mostly highway, but around town trips are short. The third weak point is the variable geometry turbo regulator. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. JavaScript is disabled. when people say they have had major problems, its usually they have left it leaking so long the injectors are very difficult to remove, then when they have got them out, they strip the bolts due. Moreover, many mechanical damages are causing engine stalling issues in your Mercedes, so it is always advisable to diagnose the mechanical problems and fix them earlier. Manifolds clog with EGR deposits. Oil leaks are best fixed as they occur. By the way, the V8 used later was closely related to this design. Would be interesting to get more info about these cars. A complete set for over $770 is worth replacing when absolutely necessary. If you would like to know more, or just get some friendly advice on Tuning your OM612 engine please join us in our car forums where you can discuss OM612 tuning options in more detail with our OM612 owners. 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. And as if that werent enough, the timing chain drive isnt very durable. 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. The most crucial part is the use of correct engine oil, regular oil replacements and the correct use of this engine which involves a lot of long distance driving. 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. Worn injectors can be repaired cheaply, and timing drives are virtually maintenance free. Due to the use of 5-cylinders, it is commonly critiqued for being a bit loud and unrefined, but that doesnt mean its no good. I advise what to choose and what to pay attention to. Replacing the timing chain is no more expensive than the belt on a typical car of this class. We strongly recommend you to be generous with your injector capacity. Another thing to consider when buying a car is the rear suspension. I am very concerned with this engine. It may not display this or other websites correctly. Another weak area is the intake system. You dont want to experience that, trust us. Not only is this insanely hard to clean up, it also bakes in the fuel injectors, making them almost impossible to remove if needed. What was the commercial name of the OM612 engine? Which Mercedes Cars Have the OM612 Engine? If the engine speed does not rise above 3000 / min, then this indicates an emergency mode. List of Mercedes-Benz engines; List of engines used in Chrysler products Mercedes Benz is known for making reliable engines but the OM617 is regarded as the most reliable diesel engine. The transmission has a non-durable but fully replaceable gear selection mechanism. Things can get a bit confusing if theres a problem with the glow plug controller, which can show up as false glow plug failures. This keeps the car road legal and will flow much better due to it's higher internal surface area and design, so has the added benefit of keeping your car road legal. It was introduced in 1999 for the 2000 model year in a 170 PS (125 kW; 168 hp) version in the W210 E-Class, W211 E-Class, W163 ML-Class, W203 C-Class and W209 CLK-Class in 2000. Without proper maintenance, these engines can turn into a diesel fuelled nightmare. The inline 4-cylinder turbodiesel 2.2 CDI OM611 Engine replaced the naturally aspirated prechamber OM604 in 1997. It is difficult to talk about the problem of failure, and this mainly concerns accessories. 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. OM612 5 cylinder 2.7L engine into this: 190D 2.5 turbo? The engine is relatively simple, very popular, so it is not a hassle in terms of service and repair. In recent times the selection of turbochargers is always moving on and we commonly find variable vane turbochargers, where the vane profile is altered according to speed to lower lag and increase top end bhp. 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