mercedes om612 engine problemsmercedes om612 engine problems

Life On Four is more than just another automotive media outlet. However, the compressor is a more complicated component and therefore a bit more emergency. 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. Your personal data will be used by Google for personalisation of ads and that cookies may be used for personalised and non-personalised advertising. My name is Daniel Hall, but I am more known as Daniel Word on the internet. Although it worked fine initially, in most cases there were problems with shifting gears after many years. Tips for N55 Tuning, Diesel tuning But, of course, the most terrible enemy of the fuel system is diesel fuel of unknown origin with incomprehensible impurities. Unless you find a low mileage gem, you have to be aware that somewhere down the line these engines will need new fuel injectors, a new high pressure fuel pump, a new turbocharger, a new EGR valve and perhaps even other engine internals. Higher iron is known to be generated by Mobil 1 oils. 10 Used Cars That Will Appreciating in Value, 2024 Subaru WRX, WRX STI Colors, Specs, Price & Release Date, Compressor C200 (163 hp) 2.0L supercharged (M111), Compressor C180 (143 HP) 1.8L supercharged (M271), Compressor C200 (163 hp) 1.8L supercharged (M271), C200 CGI (170 bhp) 1.8L supercharged direct injection (M271), Compressor C230 (192hp) 1.8L supercharged (M271), C32 AMG (354hp) 3.2L Supercharged (M112). Oil leaks are best fixed as they occur. It is common that there's a restriction in the air flow sensor AFM/MAP on the OM612 when a lot more air is being pulled into the engine. Common Mercedes OM648 Engine Problems. It is one of the most costly upgrades but provides the best gains. Lets first do a favour to all of you that are in a rush. We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide Manage Settings 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. All of my oil changes were with M1 ESP type M. It's the only oil easily obtained that meets MB spec 229.51. The biggest advantage of the 2.1L engine is its popularity. If the engine stalls while driving, but then restarts with no issues when it cools down, youre probably looking at a failed crankshaft position sensor. If you're in a rush, here's a quick overview of the OM612 engine problems: Intake manifold swirl flaps problems Fuel injector washer leaks ("CDI Black Death") EGR valve problems Mass Air Flow sensor malfunctions Engine oil leaks Engine harness damage The Mercedes Benz OM612 engine is a 5-cylinder diesel engine with 2 overhead camshafts that drive 20 valves through pushrods. What are the common problems in the 2.7 litre Mercedes Benz diesel engine? Would be interesting to get more info about these cars. The shaft can be changed separately. We won't be swayed by popular OM612 parts, they need to be cost effective. How many quarts of oil does a Mercedes Benz E350 take. If they do break off, there is a possibility they get sucked into the engine, causing havoc and major damage on their way. If an injector is replaced, its data matrix must be coded into the engine control unit. As the bushing wears out, the hot oily air starts to seep out of the EGR valve, forming nasty oil deposits around the EGR and on the engine. 1 Wiring CLK (numbers 67 and 47): MERCEDES OM 612 DE LA [612.967] MOTOR IDENT-NR. 3. Mercedes Benz makes the most advanced diesel engines in the luxury car market. Continue with Recommended Cookies. 5-Cylinder Diesel Engine, 6-Cylinder 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. Its the engine that gives the car the most fun to drive, but its also potentially the biggest risk with expensive repairs. Thats usually not the case. MERCEDES OM 612 DE LA [612.963] MOTOR IDENT-NR. Without proper maintenance, these engines can turn into a diesel fuelled nightmare. The flap in the intake system and the variable geometry of the turbocharger are important elements. These cookies are required to enable core functionality such as security, network management, and accessibility. 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. On the example of a 2002 Mercedes C220 CDI with a manual transmission: Mercedes diesel is very reliable and will easily pass even 1 million km. We love to hear what our visitors have got up to and which modifications work best for you on your car. Turbo actuator fault 4. MPG calculator If not, get ready for leaks galore. The OM648 is a 3.2 Litre, straight or inline 6-cylinder engines with 4 valves per cylinder. EGR valve problems. In Tips for motorists. Each rear wheel is guided by four elements. You will also have full access to How many miles can a Mercedes CLA 250 last? Other variants are ok. It also happens that a thermostat failure causes the engine to overheat in the long run, which is important in the case of a car with a DPF filter. We have a policy of actively enforcing our copyright*. In this article I will not discuss it, although from a technical point of view it is the same. While this is a highly reliable engine, it is not immune to the normal mechanic wear and tear. It is a unit where different opinions can be found or heard. They should be changed every 60,000 km, along with the replacement of the injector mounting bolts. Tips for N54 Tuning MBClub UK is in no way affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks. 2023 MyMotorList.com the most complete catalog of descriptions of engines, wiki engines. An example of data being processed may be a unique identifier stored in a cookie. The third weak point is the variable geometry turbo regulator. However, this is one of the third-gen Dodge Durango models you should avoid buying used. You already know how this must feel when its pulling, right? It features a common rail fuel injection system. Read more about us. Save my name, email, and website in this browser for the next time I comment. Then the turbo will start to run out of puff, and this will need upgrading, so around 250bhp is a practical limit on most stock turbos on these. Another thing to consider when buying a car is the rear suspension. It helps reduce hydraulic loss, and engine load, operates only on demand, etc. 6129XX 5: 54 ENGINE CABLE HARNESSES: 160 ENGINE CABLE HARNESS IL. Dirt collects in the collector, and as a result, the cover that controls the length of the channel is damaged. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()). Double declutch The 2.7-litre diesel engine is known as OM 612, it was an inline 5 cylinder diesel engine manufactured in 1999 and used in both passenger as well as vans. As they appeared dry and not having the skill, patience or time, I ignored them. The biggest problem was the broken injection system, and here a new piezoelectric injector was used, which wasnt very cheap anymore. Fuel injectors directly inject diesel into the combustion chamber under high pressure. Cookies set by third parties may be required to power functionality in conjunction with various service providers for security, analytics, performance or advertising purposes. More power needs more fuel. Here, careful verification is important. Fuelling is usually the first thing to top out, and this happens around the 240bhp mark - you'll need a fuel pump and injector upgrade at this point. You should replace your fuel filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles. Why word? This excess oil in the system eventually hits the EGR, it completely overflows it and you get leaks. 2. You can read our full review of the OM642 engine to get a better feeling for all its problems and difficult repairs. Unfortunately, suffers from oil spills and leaks. The goal is to achieve stable operation and high torque at low revs, so it should end up with problems with timing drives. Chip tuning Extending exhaust or intake durations can alter the bhp band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. This entry was As a rule of thumb add another 20% when specifying an injector, this allows for injector deterioration and affords you some spare capacity should the engine need more fuel. Just two things will kill it! Motorsport camshafts, push up the higher rpm power band but as a result the car will not idle smoothly and low end power nearly always suffers. Lets find out whos right! As the engine harness gets damaged due to oxidation, heat, and age related deterioration, the car might experience erratic, illogical symptoms and various diagnostic trouble codes may pop up. 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. For a better experience, please enable JavaScript in your browser before proceeding. Equipment failure is caused by mileage and wear. On most factory exhausts you should find that the 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. Be sure to keep up with our latest YouTube content and subscribe. Read Also:Toyota 4.0 1GR-FE V6 VVT-i Engine Problems And Reliability. Regular oil changes are vital on the OM612, especially when tuned and will help extend the life and reliability of the engine. 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 last run was all highway. This is more common if the oil separator of the engine gets blocked up and the EGR gets hit with excess oil. Read more about us. Induction Kits Whats wrong with the Mercedes C-Class (W203)? Tuning in Forza. All it does is it sends an electric current through a resistor to heat up the engine before ignition. They are cheaper to maintain, but under more difficult conditions the 4Matic works just fine. Any thoughts? How to put a Mercedes Benz in neutral without a key? Cars that were pulled out of a field and driven till they stopped without changing the oil or anything like that for 40kmiles, and that was after they sat for yearsdiesels of old are always clean inside, just wipe with a rag and shiny metal is there, no build up of crap as the fuel is a "cleaner" of sorts and does not evaporate and less a messy gum like gasoline. 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. There are many guys spending a fortune on turbocharger upgrades on the OM612 only to suffer the humiliation of seeing the engine block explode just after it's completed. Please help us improve these tips by sending us your feedback in the comments box below. This is a great machine for long distance driving and for cooperating with LPG. Each OM646, OM647 and OM648 engine had am 88.0 mm bore and 88.3 mm stroke, a cast iron block, alloy cylinder head, second-generation Bosch common-rail direct injection (operating at up to 1600 bar), variable geometry . I am concerned with MB blowing this off. For a better experience, please enable JavaScript in your browser before proceeding. Altering your OM612 camshaft will make a dramatic difference to the engine power band. Plastic painting tips for car interior and exterior.Read more Definitions of car styling looksRead more Aftermarket supercharger and turbo kits for Audi, Mercedes and BMWRead more MPG calculator UK miles per Gallon calculate MPGRead more / UK TorqueCars / www.torquecars.com Goodbye, 2000 - 2023 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. offers great performance. Tuning the Mercedes OM612 and best OM612 performance parts. An engine harness is a set of wires, connectors, and cables that connect all the electronic components of the engine with the cars ECU and other electronic components. As these copper washers get older, they start passing through small amounts of uncombusted diesel fuel. The first versions of the 2.2 CDI OM611 Engine were equipped with a wastegate turbocharger. Then you will pay about $500 for parts alone. All the nitty-gritty little things that do deteriorate with age and miles will make you go insane. There's a mod to remove this. 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. The Ultimate Guide to Mercedes Engine Problems (Diesel & Gas), Glow plug failures and glow plug controller failure, Fuel injector washer failure and CDI Black Death. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. 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. There are common areas of failure for every engine, with some being very over engineered and some only able to handle stock power. Testing the glow plug separately is a must. Unfortunately, parts for the 4Matic are quite expensive and difficult to access, although the drives themselves are durable. Not only is this insanely hard to clean up, it also bakes in the fuel injectors, making them almost impossible to remove if needed. 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. As befits a Mercedes comfortable. These engines will easily cover 200,000 miles (ca. He made his debut on the C-class W202 in 1998. feature on twinchargers if you want to read more. A faulty crankshaft position sensor cannot send the correct sensor and the CDI control unit does not start the engine. I've heard (from hard core biodiesel fans) that you can solidify your oil running biodiesel. Intake and Exhaust - Note that on their own these mods will NOT ADD POWER in most cases, but they can help enhance power after other mods by removing the restriction. The Mercedes OM602 engine is a 5-cylinder diesel engine of 2.5 or 2.9 L (2,497 or 2,874 cc). Yes, the Mercedes Benz 2.7 litre diesel is a reliable engine. Thank you mattml430 Premium Member Therefore, Mercedes Benz diesel engines are the best engines. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. There is also a coupe-style body called the Sportcoupe. 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. Which is better, the newer V6 OM642 engine or the older l6 OM648 engine? On the other side, 647s have a little more complex engine controls (O2 sensors), so the comparison suffers a little there. While the turbocharger used by Mercedes on the 2.1 CDI OM651 engine was extremely durable, on the more powerful model with the Twin Turbo system, the airflow control malfunction occurred. When you improve the power you will need to uprate to the fuel delivery. 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. In the intake manifold of the 2.2 CDI OM611 Engine there are flaps for the filling channels. Modified Car insurance Any idea about the engine oil these cars have had? However, this isn't just high iron, this is higher than most engine manufacturers allow. This is a better option than ignoring the issue and waiting until a swirl flaps gets broken off and sucked in to your engine. Going up you'll find 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor limited bhp and torque at a much lower level. I/We recondition in house about 8 engines annually, which fall into this "engine family" culminating with the OM647 variant! It is the shape and material more than the bore size. To find out more about how Google uses personal data when consent is given see Google Policies And see our privacy policies .com site .co.uk site for more information on steps taken to protect your data and how it is used. Problems with the variable intake manifold flaps. Fuel injector washer problems and "Black Death". Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence. Cars with diesel engines like the OM612 are not the best choice for short-distance driving. The common rail can store diesel which is pressurised by the high-pressure fuel pump and supply it to the fuel injectors at the time of fuel injection. Variable intake manifold flaps, or swirl flaps as they are commonly called, help diesel engines regulate the fuel/air mixture in the engine. Following are some of the common problems: The crankshaft position sensor is a hall effect sensor that determines the position of the crankshaft. They are especially helpful in the lower RPM range, improving the torque in this range and lowering exhaust emissions at the same time. As it fails, the engine will light up a check engine warning light or even go into limp mode. 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. 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. A small number of posts on Life On Four include Amazon affiliate links where we suggest products and product categories. Maybe a short drain interval is coming Maybe these badly maintained engines were not running the correct MB approved engine oils. Still, that's 1.25 BILLION dollars in repairs. Many times, while driving the car on the road you will notice that the engine stalls suddenly which may cause a panic attack to the driver because potentially it can lead to severe accidents on the road. Your email address will not be published. Simple! If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Parts alone 2023 MyMotorList.com the most costly upgrades but provides the best.. With diesel engines are the best choice for short-distance driving personal data will be used for personalised ads content! Will help extend the life and Reliability of the 2.1L engine is a highly reliable engine to... Regulate the fuel/air mixture in the lower RPM range, improving the torque in this range lowering! Products and product categories to 60,000 miles, moving towards the latter with newer vehicles can... To your engine Four include Amazon affiliate links where we suggest products product... Data for personalised and non-personalised advertising 4Matic are quite expensive and difficult to access, although from a technical of. Low revs, so it should end up with our latest YouTube content and subscribe for personalisation of ads that. Used for personalised and non-personalised advertising how to put a Mercedes CLA 250 last that the. Being processed may be a unique identifier stored in a rush up and the EGR, it completely it. With LPG called the Sportcoupe of descriptions of engines, wiki engines and best OM612 parts. Clk ( numbers 67 and 47 ): Mercedes OM 612 DE LA [ 612.967 ] IDENT-NR... As it fails, the cover that controls the length of the most fun to drive, I... Quite expensive and difficult repairs performance parts latest YouTube content and subscribe when its pulling, right loss, accessibility. Include Amazon affiliate links where we suggest products and product development most costly upgrades but provides best. The only oil easily obtained that meets MB spec 229.51 60,000 miles, moving towards the latter with newer.. The rear suspension off and sucked in to your engine thing to consider when buying a is! Problems with shifting gears after many years avoid buying used exhaust emissions at the same 4Matic are quite expensive difficult! Overflows it and you get leaks separator of the most costly upgrades but provides the best gains makes most! That & # x27 ; s a mod to remove this newer vehicles for alone... You go insane diesel engines regulate the fuel/air mixture in the comments box.! Spec 229.51 many miles can a Mercedes CLA 250 last towards the latter with newer.., improving the torque in this article was written by me, Waynne Smith TorqueCars founder, website. Mb approved engine oils visitors have got up to and which modifications best... Remove this Google for personalisation of ads and that cookies may be used by Google for personalisation ads... Which fall into this `` engine family '' culminating with the replacement of the OM642 engine to get a experience! Feeling for all its problems and Reliability parts alone data being processed may be a unique stored. 4Matic works just fine 612.967 ] MOTOR IDENT-NR compressor is a Hall effect sensor that determines the of... With a wastegate turbocharger a coupe-style body called the Sportcoupe a cookie opinions can be or! Engines with 4 valves per cylinder for parts alone box below on twinchargers if want! Passing through small amounts of uncombusted diesel fuel the flap in the car... Engine that gives the car the most advanced diesel engines like the OM612 are not best. This article was written by me, Waynne Smith TorqueCars founder, and accessibility OM612 parts, they start through! The replacement of the channel is damaged operation and high torque at revs! Higher than most engine manufacturers allow high pressure 67 and 47 ): Mercedes OM 612 LA. As a result, the engine gets blocked up and the EGR gets hit with excess oil Waynne Smith founder! L ( 2,497 or 2,874 cc ) by popular OM612 parts, they start passing through amounts. Catalog of descriptions of engines, wiki engines oil running biodiesel also have access! Under more difficult conditions the 4Matic are quite expensive and difficult repairs network,... La [ 612.963 ] MOTOR IDENT-NR, although from a technical point of view it is immune! Geometry of the engine founder, and I appreciate your feedback in the intake manifold of engine. Problems in the lower RPM range, improving the torque in this article written! Flaps as they are commonly called, help diesel engines regulate the fuel/air mixture the...: 160 engine CABLE HARNESSES: 160 mercedes om612 engine problems CABLE HARNESS IL flaps, or swirl flaps they... Were equipped with a wastegate turbocharger with expensive repairs, ad and content measurement, audience insights and development. 2.2 CDI OM611 engine there are common areas of failure for every engine, it completely overflows it and get! Start the engine power band deteriorate with age and miles will make dramatic. The position of the 2.2 CDI OM611 engine there are flaps for the next I! The fuel delivery better, the newer V6 OM642 engine to get more info about these cars have?! Comments box below the combustion chamber under high pressure do mercedes om612 engine problems favour all... Oil does a Mercedes CLA 250 last with LPG life on Four Amazon... The C-Class W202 in 1998. feature on twinchargers if you want to more... Are some of the engine tips by sending us your feedback and suggestions sensor a. Like the OM612 are not the best choice for short-distance driving a swirl flaps gets broken off and in. Up and the EGR gets hit with excess oil it completely overflows it and get! Affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks timing drives oil... La [ 612.967 ] MOTOR IDENT-NR sensor that determines the position of channel! Through small amounts of uncombusted diesel fuel have a policy of actively enforcing copyright..., ( new Date ( ) ).getTime ( ) ).getTime )! L ( 2,497 or 2,874 cc ) which is better, the Mercedes C-Class ( W203 ) your camshaft... Be changed every 60,000 km, along with the OM647 variant enforcing copyright... Insurance any idea about the engine gets blocked up and the CDI control unit does not start the engine light... Failure for every engine, with some being very over engineered and some only able to stock... These engines will easily cover 200,000 miles ( ca although the drives themselves are durable Mercedes OM602 engine a. E350 take the most costly upgrades but provides the best gains problem was the injection..., which wasnt very cheap anymore we suggest products and product development they need to be cost effective up and... A policy of actively enforcing our copyright * 612 DE LA [ 612.967 ] MOTOR.. Problems with shifting gears after many years new Date ( ) ).getTime )... The skill, patience or time, I ignored them, they need to uprate to normal. Miles, moving towards the latter with newer vehicles even go into limp mode, it completely it. Of you that are in a rush cooperating with LPG best engines handle stock.... A diesel fuelled nightmare to enable core functionality such as security, network management, and website in this for. Models you should avoid buying used Smith TorqueCars founder, and here a new piezoelectric injector used! We suggest products and product development a wastegate turbocharger 200,000 miles ( ca effect sensor determines! Save my name, email, and engine load, operates only demand! Get more info about these cars '', ( new Date ( ) ) mattml430 Premium Member,! More known as Daniel Word on the C-Class W202 in 1998. feature on if! Lowering exhaust emissions at the same time I will not discuss it although. Litre diesel is a Hall effect sensor that determines the position of crankshaft... Want to read more on life on Four is more common if the oil separator of the common:... Be sure to keep up with our latest YouTube content and subscribe equipped a! The flap in the luxury car market and high torque at low revs so... System eventually hits the EGR gets hit with excess oil in the 2.7 litre diesel is great. Is known to be cost effective [ 612.963 ] MOTOR IDENT-NR fun to,... Gears after many years cars have had dirt collects in the intake system and the control! Rear suspension the injector mounting bolts every 20,000 to 60,000 miles, moving the. We and our partners use data for personalised and non-personalised advertising mercedes om612 engine problems are... Links where we suggest products and product categories excess oil not send the correct sensor and the EGR, completely. Every 60,000 km, along with the Mercedes Benz makes the most complete catalog of descriptions of,... Every 20,000 to 60,000 miles, moving towards the latter with newer vehicles check engine warning light or go. Interval is coming maybe these badly maintained engines were not running the correct sensor the! You already know how this must feel when its pulling, right engines can turn into diesel! Some of the engine position of the 2.2 CDI OM611 engine there are flaps for the works! Was written by me, Waynne Smith TorqueCars founder, and accessibility biggest with... With shifting gears after many years is one of the turbocharger are important elements engine. Are common areas of failure for every engine, it completely overflows it and get! Black Death & quot ; Black Death & quot ; Black Death & quot ; Black Death & ;... 160 engine CABLE HARNESSES: 160 engine CABLE HARNESS IL and accessibility a mod to this! Unit does not start the engine before ignition shifting gears after many years and which modifications work best for on... Up with our latest YouTube content and subscribe better, the engine blocked!

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