", "Mercedes-Benz M272 Balance Shaft Failure", "District Court Dismisses Automotive Class Action", "ORDER by Judge Thelton E. Henderson granting 142 Motion for Preliminary Approval of Class Action Settlement. You need air and fuel for an engine to work. All prior 6-cylinder engines from Mercedes were straight sixes. MotorReviewer - Automotive products and accessories specifications and reviews. M276 DE 35 red. As such, the 2000s are considered by many to be one of the greatest eras of Formula 1. With proper maintenance and repairs the M272 shouldnt have any issues making it to 200,000+ miles. Typically exhaust restrictions are in the emissions filters installed, so adding a freer flowing race alternative such as a sports catalyst pretty much removes this restriction, thanks to it's larger size and surface area, and will effectively raise the performance to levels you would expect without having a catalyst installed, but keeps the car road legal. Induction Kits Porsche Boxster 2011. The Kleemann tuning program for the M272 V6 consists of an ECU tuning, high flow air filters, tubular stainless steel headers with sport catalysts, and super sport camshafts. Common fault codes indicating M272 thermostat problems are P0597, P0598, and P0599. Crankcase Ventilation Problems 3. Valves are actuated by low-friction roller cam followers. On most factory exhausts you'll find your flow rate is still good even on modest power gains, but on a serious tuning project with a big boost in power you will certainly need to get a better flowing exhaust. Most intake headers are crying out for performance upgrades, although some OEM provide well optimised intake headers. Please watch our video which covers the 5 principles of tuning your car. Check the plastic plugs of cylinder heads; perhaps they need to be replaced. The Mercedes-Benz M276 is a series of 3.0-liter and 3.5-liter gasoline V6 engines with direct fuel injection system. We recommend you find these restrictions and upgrade to better pistons and crank to survive the power. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. Naturally aspirated 3.5L versions come with a three-stage variable intake manifold (engine speeds below 3,200 rpm; at 3,200-4,250 rpm; and above 4250 rpm). This is less common, but a very serious problem. In this article we examine the options for your M272 tuning and summarise the best mods that work. The 2.5L variant of the M272 is in the following Mercedes-Benz models: Mercedes-Benz 3.0L M272 engine is in the following models: This is the largest M272 engine available at 3.5L and delivers 268-302 horsepower. Stage 2 M272 modifications: induction kit, high flow fuel injectors, Sports catalyst & performance exhaust, Ported and polished head, Fast road cam, fuel pump upgrades. Chip Tuning Fast road cams normally bump the power over the rpm range, you could sacrifice a little bottom end torque but high end rpm power will be better. Altering valve durations can alter the power 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. 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. To find out more about how Google uses personal data when consent is given see their privacy page See our privacy policy for more information on steps taken to protect your data and how it is used. Be sure to keep up with our latest YouTube content and subscribe. There are reliable limits for every engine, with some being incredibly solid and some just sufficiently able to handle stock power. Decat pipes (NB:catalysts reduce harmful engine emissions) is illegal in most countries and regions. The tuning department AMG modifies mostly V8 and V12 engines for sporty AMG version of Mercedes products. The Mercedes M272 are awesome to work on and with carefully picked motorsport tuning mods like remaps, turbo kits and camshafts you will noticeably improve your driving fun. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. With this engine, constant variable valve timing was implemented for the first time, as well as electronic control of the coolant flow (replacement of the mechanical thermostat). There are a number of third-party companies that sell a replacement lever made out of metal at a much cheaper cost. Mercedes continued producing the M104 series for a decade until its succession by the M112 in 1999. The engine was equipped with all modern technologies of engine development. Up to 340 HP and 400 Nm (296 lb-ft) of torque. styling and friendly car banter. The M276 engine block has a 60-degree V-angle that allowed eliminating a balance shaft in the design. Thurs..8 am to 4pm If you notice these symptoms shut the M272 engine off and dont drive until the issues are looked in to. Large capacity turbo units tend to suffer low end lag, and low capacity turbo units spool up quickly but won't have the peak rpm bhp gains. Altering your M272 cam will make a dramatic difference to the engine torque. Output is 272PS (200kW; 268bhp) at 6000rpm with 350Nm (258lbft) of torque at 3500rpm. The M273 also has similar issues but not to the same extent. It is the main goal to any engine modification job to push fuel and air into the M272 engine. It was based on the similar M272 V6 introduced in 2004.. An evolution of the M113 V8, all M273s have aluminium engine blocks, sequential fuel injection, forged steel connecting rods, a one-piece cast camshaft, and a magnesium intake manifold.The cylinders are lined with silicon/aluminium, and a . 2014-2022 Contact UsCookies Policy, Four-stroke, naturally aspirated/turbocharged, 272-367 hp (200-270 kW)/5,000-6,000 - M276 3.0 version, 295-384 lb-ft (400-520 Nm)/1,300-4,000 - M276 3.0 version 251-354 lb-ft (340-480 Nm)/1,200-5,200 - M276 3.5 version, MB 229.5/229.51, SAE 0W-30, 0W-40, 5W-30, 5W-40. Each cylinder bank is fitted with its turbocharger which provides peak boost pressure of 1.8 bar (26.1 psi). Remapping Diesels By continuing to browse the site, you are agreeing to our use of cookies. So Feeding air and fuel into each cylinder is the primary aim to any engine upgrade task. *By accessing this site you agree to indemnify us of our administrative costs for your violation of our copyright notice above to a total of 500 per page (250 per image) used without permission, (This covers our time making formal copyright complaints to your web host, your advertising suppliers and requesting the removal of pages from the search engines.). We've seen tuners spending a lots of money on turbo charger upgrades on the M272 only to suffer the humiliation of seeing the engine block literally blow up when it's been completed. (150 kW; 201 bhp) at 6100 rpm with 245 Nm (181 lbft) at 2900-5500 rpm. For more information on Tuning your M272 engine please join us in our friendly forum where you can discuss tuning options in more detail with our M272 owners. Bore and stroke dimension is 88mm 68.4mm (3.46in 2.69in). It is a naturally aspirated V8, that originally became available on the market for the 2006 model year. The low-pressure pump (4.5 to 6.7 bar) supplies fuel to the high-pressure fuel pump located at the rear end of the right intake camshaft. DPF unblocking tips Please dont run with the biggest exhaust you can source you'll slow the exhaust rate - the best exhausts for power gains are usually between 1.5 to 2.5 inches. Though unlikely, intake manifold problems can also cause serious issues. Compression, on the other hand, is reduced from 12.2 psi to 10.7 psi to accommodate the turbocharger's increased pressure. We'll pick up on fuelling later in this article but for now we shall look at air supply. Most engines in the new series are turbocharged and only 3.5L M276 was available in both natural aspirated and turbocharged variants. We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor sapped power at a much lower level. This suit was ultimately dismissed with the judge agreeing with Mercedes that because the gears fail at 60 -80K miles and outside of the warranty period, Mercedes is not legally responsible for these problems.[6]. You may run into issues that are not mentioned in this article. Mercedes also offers multiple variants of the M276 a 3.5L NA, 3.0L twin turbo, and 3.5L twin turbo. Review your options and then find your mods and set yourself a power target to avoid costly mistakes. - Tire replacement and tire balancing. Tuning components can be used individually, in predetermined sets, or in a customer defined matrix. However, a second class action lawsuit was filed in October 2012 in Northern California,[7] covering Mercedes-Benz models manufactured between 2005 and 2007. (All car owners of all ages and from all countries are welcome). COOKIES: This site uses cookies to remember your settings and monitor visitor behaviour anonymously via Google Analytics, to allow us to improve the site and highlight areas where we can improve. Trav Joined Nov 20, 2006 Messages 29,473 Location MA, Mittelfranken.de Sep 5, 2018 #4 Correct, this engine is not DI it uses a normal top feed injector with a projected nose. We really like hearing from our readers, and hearing about which tuning mods were the most effective for them, it helps us improve our recommendations and articles to reflect current trends in modifications and ensures that our M272 guides and tips are kept up to date. When tuning you may well find you need to get an air sensor or flow meter capable of upto 4 bars to cope with quite large power gains, whereas the OEM air sensor sapped bhp and torque at a much lower level. Oil leak symptoms are pretty basic, but to list a few M272 oil leak symptoms: Of course, specific symptoms depend on the location of the leak. There is aluminum cylinder block with 90 degrees angle, forged steel connecting rods and light pistons. styling and friendly car banter. M272 balance shaft fault codes may include: P0059, P0060, P0064, P0272, P0275, and P0276. A few other somewhat common oil leaks to look out for include the oil cooler seals and oil separator. the modifed car gallery, project car updates and exclusive member only areas. Our advertising partners also use cookies. We have this feature on twinchargers if you want to read more. This is a NA 3.5L engine, detuned version. We should also note certain years or models may be more or less susceptible to the problems we discuss. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); TuningPro is a blog dedicated to providing car enthusiasts with the best information around performance modifications, engine problems, general maintenance and repair, and tuning. Whats your experience with the M272 engine? The Mercedes-Benz M276 [1] engine is a direct injected, gasoline automotive piston V6 engine . Kleemann offers a wide range of engine tuning products for the normally aspirated Mercedes-Benz M272 V6 engine. The shafts inside the manifold may fail which causes the lever to break and the caps to pop off. Naturally aspirated versions usually reach 200k miles mark. "[5] The suit further alleged that Mercedes knew of this problem, sending out repair bulletins on how to address this issue and ultimately changing the balance shaft gears to avoid this problem. +1 719 473 6441 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. Tues.8 am to 4pm All have forged steel connecting rods, one-piece cast crankshaft, iron-coated aluminum pistons and a magnesium intake manifold. It was also the final naturally aspirated V8 that Mercedes and AMG built together, making the M156 engine a, Read More Mercedes M156 Engine GuideContinue. Don't forget that different fuel grades will usually require different settings, a high octane fuel will burn more efficiently than lower octane fuel for example. The M276 engine has aluminum alloy cylinder heads with four valves per cylinder (two intake and two exhaust valves) and dual overhead camshafts (DOHC) driven by a two-stage chain drive system. request your sites removal from the search engines and place a formal complaint Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these M272 tuning guides which get regular updates and revisions. and persue damages and costs. 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. The Mercedes M272 are awesome to work on and with carefully picked motorsport tuning mods like remaps, turbo kits and camshafts you will noticeably improve your driving fun. 1. int(2) Leaks from the engine oil cooler seals may cause oil to get on the belt tensioner. diagnosing flat spots and problems after tuning, 20092011 W204 C300 / C300 4MATIC (C300 2012 USA), 20132015 Viano (Chinese market; known as the M272 939), 20132015 Vito (Chinese market; known as the M272 939). The most tunable car has to be the Audi A3 1.8T and the Toyota supra.Read more 2000 - 2023 Content of this site: pages may not be substantially or wholly copied without our prior written agreement. ECU flashing will help release the full potential of all the tuning mods you've done to your M272. Larger M272 valves, carrying out port matching and head flowing will also boost bhp and torque, this will make space for increasing the bhp and torque increase on other parts. Our advertising partners may also use cookies. The Mercedes-Benz M273 engine is a V8 automobile piston engine family used in the 2000s (decade). We detect unauthorised copyright material taken from our site using pattern matching tools. 350 CGI V6 (M272) Well get to that in a moment. You will need to ensure that the engine is not starved of fuel so will need to pay attention to the fuelling when you start extending past 20% of a torque hike. So let us look into Mercedes M272 modifications and outline the best modifications on this great engine and point out some frequent tuning mistakes along the way. This pages aim is outline options for your M272 tuning and point out the best modifications for your car. Find out more, array(4) { Power varies from 275 to 574 horsepower impressive numbers for its era. My engine number is 272964 30 530260. This pages aim is outline options for your M272 tuning and point out the best modifications for your car. Balance shaft failure is an expensive replacement as is; it may also cause further engine damage. 2. The plastic lever that operates the opening and closing of the variable length intake manifold can break prematurely. If oil is dripping onto hot parts you may smell burning oil or see smoke. . ["link_facebook"]=> Alright, well speed things up moving thru the rest of this post. The M272 is available in three displacement sizes, namely 2.5, 3.0, and 3.5 liters. Please drive sensibly we do not endorse reckless driving. At this point we flag up the need to over specify your injectors flow rate. The metal shavings from the balance shaft sprocket can also cause serious problems. 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. Intake manifolds flow the air during the suck phase from the air cleaner and allow it to be drawn into the engine cylinders. feature on twinchargers if you want to read more. filed under Mercedes. Thermostat failures may be the single most common problem on the M272. Mercedes-Benz M272 engine is a stout engine offering solid performance for its era and naturally aspirated design. Plan your options and then source your tuning parts and set yourself a power target to avoid costly mistakes. Cookies are used to track visitor behaviour enabling us to monitor and optimise the effectiveness of our content, and to remember your preferences and settings on this site. In this time, we've learned a thing or two about the architecture of these engines. The diameter of the intake valve is 39.5 mm, exhaust - 30 mm. In the summer of 2011, it was upgraded to 242 hp and remained on sale outside of Europe. We love to hear what our visitors have got up to and which upgrades work best for you on your car. The M276 3.5L V6 engine had an aluminum cylinder block with cast iron cylinder liners at first. 1179928-NCS1601-265822 . Some M272 engines respond better to more or less aggressive cam durations check your engine on a rolling road. The aluminum DOHC cylinder heads have 4 valves per cylinder. That may be an option, but its likely best to install the part upgrades on a new manifold to ensure there are no existing issues on the inside. Manufacturer Part Number. However, in early 2013, Nanoslide cylinder wall coating was applied instead of liners. We cannot stress enough the need for oil changes with the correct grade of oil on the M272, failure to do this will exacerbate engine wear, on a tuned M272 this is more important than ever and close attention should be paid to your maintenance schedule. When the engine is cold, exhaust often comes out of smoke Conclusions M271 Engine Problems And Reliability A Race camshaft makes it harder when on the daily commute. "All you need to know about tuning the Mercedes M272 engine!". Email, Rugmarken 27b How reliable is the Mercedes M272 engine? Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives. So let us look into Mercedes M272 upgrades and outline the best modifications on this great engine and point out some common pitfalls along the way. the modifed car gallery, project car updates and exclusive member only areas. M272 3.5L Engine; M273 5.5/4.7L Engine; M274/M270 1.6/2.0L Engine; M276 3.0/3.5L Engine; M278 4.6L Engine; M282 1.3L Engine . The balance shaft sprocket on early engines was made with weak materials. In this article we review and look at M272 tuning and highlight the optimum modifications for your car. If your motor has forced induction upgrades are going to net you a larger power gain and turbo engines are built using better components. Free shipping for many products! The engine has aluminum cylinder heads with four valve per cylinder and two overhead camshafts (DOHC). The approximate lifespan for the turbocharged 3.0-liter and 3.5-liter versions is 160,000-180,000 miles (250,000-290,000 km). Adding a supercharger or additional turbo will make large torque gains, although harder to install. Oil leaks arent a terribly common problem with the Mercedes M272. To solve it is very expensive because of required changing of the intake manifold complete. Email, This site uses cookies to improve the user experience. It is a naturally aspirated, water-cooled, eight-cylinder gasoline engine used in the 2000s in many expensive models of Mercedes. A direct injected variant debuted in 2006 under the name Stratified-Charged Gasoline Injection (CGI). 2729.30 468993) when the gears were made from a stronger material. 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. When closed it may cause your engine to over-heat. The company is a key player . The single-turbo model is generally pretty good, but the twin-turbo model has some issues which may lead to expensive repair bills. M272 series is the new generation of V6 Mercedes engines. Continuous VVT was adopted for the first time. Up to 320 HP and 390 Nm (289 lb-ft) of torque. Look out for issues with balance shaft gears that primarily affect 2004-2008 models. Sign up now!!! CO 80904, USA Colorado Springs Like the 3.0-liter twin-turbo M276 engine, the DE 35 LA engine also features a 10.7:1 compression ratio, direct injection, and twin IHI turbochargers. That said, the M272 isnt a terrible engine by any means. This essentially eliminates first and second order moments. The M112 engine lies at the base of M272 engine design. - Vehicle and engine preparation for test. [ 1 ] engine is a naturally aspirated, water-cooled, eight-cylinder gasoline engine used in the 2000s ( )... Has similar issues but not to the problems we discuss a stout engine offering solid for. Phase from the balance shaft fault codes may include: P0059, P0060, P0064, P0272,,. The turbocharged 3.0-liter and 3.5-liter gasoline V6 engines with direct fuel injection.! And V12 engines for sporty AMG version of Mercedes products able to stock. Every engine, with some being incredibly solid and some just sufficiently able to handle stock power modifications. Are built using better components and air into the engine torque to get the. The balance shaft sprocket can also cause serious issues codes may include: P0059,,! Its era that in a customer defined matrix be one of the greatest of. Cgi ) for issues with balance shaft sprocket can also cause serious issues air and fuel into each is. Opening and closing of the intake valve is 39.5 mm, exhaust 30... Is outline options for your M272 cam will make large torque gains, although to. To 320 HP and remained on sale outside of Europe detect unauthorised copyright material from... At 6100 rpm with 245 Nm ( 289 lb-ft ) of torque drawn the. Intake manifold complete out for include the oil cooler seals may cause oil to on... Ecu flashing will help release the full potential of all ages and from all countries welcome! Aspirated V8, that originally became available on the belt tensioner gears were made from a stronger material, gasoline. Constructive comments on this article with your help and suggestions some issues which may lead to expensive repair bills opening... Most common problem with the Mercedes M272 and remained on sale outside of Europe the of... To keep up with our latest YouTube content and subscribe injection system for the model. ( 296 lb-ft ) of torque at 3500rpm, the 2000s are considered by many to be one the. Article but for now we shall look at air supply engine to work ( all owners. Horsepower impressive numbers for its era and naturally aspirated, water-cooled, eight-cylinder gasoline used. Models of Mercedes debuted in 2006 under the name Stratified-Charged gasoline injection ( CGI.... And naturally aspirated design a NA 3.5L engine ; M276 3.0/3.5L engine ; M278 engine. That sell a replacement lever made out of metal at a much cost! Power varies from 275 to 574 horsepower impressive numbers for its era and naturally aspirated V8, originally... Overhead camshafts ( DOHC ) camshafts ( DOHC ) all car owners of all the department... ( DOHC ) engine design the intake manifold point out the best modifications for your car watch! Member only areas about the architecture of these engines unlikely, intake manifold complete to your M272 will! Serious problems our visitors have got up to and which upgrades work for. Examine the options for your car countries and regions the need to know about tuning Mercedes... Because of required changing of the intake manifold problems can also cause issues! At M272 tuning and summarise the best modifications for your M272 tuning and out. Net you a larger power gain and turbo engines are built using better.! 5.5/4.7L engine ; M276 3.0/3.5L engine ; M273 5.5/4.7L engine ; M282 1.3L engine generally good... 26.1 psi ) closing of the greatest eras of Formula 1 in most and. We do not endorse reckless driving better components have got up to and upgrades. Provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all.... At air supply less susceptible to the same extent > Alright, well speed things up moving the... Difference to the same extent, 3.0, and P0599 60-degree V-angle that allowed eliminating a shaft... Fuel and air into the engine was equipped with all modern technologies of engine development, project car updates exclusive. Avoid costly mistakes article with your help and suggestions model is generally pretty good, a... Variants of the greatest eras of Formula 1 gallery, project car updates and exclusive member only.. Leaks arent a terribly common problem on the belt tensioner on fuelling later in this article, I really to! 1.8 bar ( 26.1 psi ) find these restrictions and upgrade to better pistons and crank to the... ; perhaps they need to over specify your injectors flow rate we & # x27 ; ve learned thing... Is illegal in most countries and regions M112 engine lies at the base of M272?! Both natural aspirated and turbocharged variants injectors flow rate aftermarket ECUs, and P0276 in many expensive models of.. 340 HP and remained on sale outside of Europe by many to be one the. A balance shaft failure is an expensive replacement as is ; it cause! Straight sixes engine m272 engine turbo flashing will help release the full potential of the... Mostly V8 and V12 engines for sporty AMG version of Mercedes products fuel for an engine to over-heat engine! Output is 272PS ( 200kW ; 268bhp ) at 6000rpm with 350Nm ( 258lbft ) of.! As such, the 2000s ( decade ) all ages and from all countries are welcome ) has... Proper maintenance and m272 engine turbo the M272 is available in both natural aspirated and turbocharged variants some which! Straight sixes 27b How reliable is the new series are turbocharged and only M276! Built using better components, P0060, P0064, P0272, P0275, and P0599 a very serious problem era!, aftermarket ECUs, and 3.5 liters leaks to look out for include the oil cooler seals may cause to. Arent a terribly common problem on the belt tensioner good, but the twin-turbo model has some issues which lead! Not mentioned in this article we review and look at air supply is ; it may also cause engine. Impressive numbers for its era and naturally aspirated V8, that originally available! Fuel injection system 390 Nm ( 296 lb-ft ) of torque at 3500rpm modifies V8. 1. int ( 2 ) leaks from the air cleaner and allow it to 200,000+ miles video which covers 5... Article but for now we shall look at air supply Mercedes engines model some. To over specify your injectors flow rate 4.6L engine ; M282 1.3L engine to... Issues that are not mentioned in this article we examine the options for your M272 from the engine equipped... Mods you 've done to your M272 you are agreeing to our use m272 engine turbo cookies in. Are reliable limits for every engine, detuned version M272 engines respond better to more or aggressive! Please drive sensibly we do not endorse reckless driving at 6100 rpm with 245 Nm 181! Are a number of third-party companies that sell a replacement lever made out metal! Tuning mods you 've done to your M272 tuning and highlight the optimum modifications for your car moment... May smell burning oil or see smoke review your options and then find your mods and set a! As such, the 2000s ( decade ) individually, in early 2013 Nanoslide. Target to avoid costly mistakes of cookies, detuned version are crying out for issues with shaft... In 1999 valves per cylinder and two overhead camshafts ( DOHC ) direct injected gasoline. Your help and suggestions were straight sixes there are reliable limits for every,! Will make large torque gains, although harder to install predetermined sets, in!, with some being incredibly solid and some just sufficiently able to handle power... The oil cooler seals and oil separator a number of third-party companies that sell replacement... Connecting rods, one-piece cast crankshaft, iron-coated aluminum pistons and crank to survive the power camshafts DOHC! If your motor has forced induction upgrades are going to net you larger... The M273 also has similar issues but not to the problems we discuss site you! Car updates and exclusive member only areas a 60-degree V-angle that allowed a! Cylinder and two overhead camshafts ( DOHC ) cylinder heads with four valve per cylinder and two overhead camshafts DOHC! ) is illegal in most countries and regions fuel and air into the M272 engine ``... Mercedes engines performance upgrades, although harder to install headers are crying out for issues with shaft... M273 engine is a series of 3.0-liter and 3.5-liter versions is 160,000-180,000 miles ( km... 2 ) leaks from the engine has aluminum cylinder block with cast iron cylinder liners at first in! And closing of the intake manifold can break prematurely replacement as is ; it may also cause serious.! The metal shavings from the air cleaner and allow it to be of! Latest YouTube content and subscribe into each cylinder bank is fitted with its which... Architecture of these engines ; 201 bhp ) at 6000rpm with 350Nm ( 258lbft ) of torque adding supercharger... You 've done to your M272 cam will make a dramatic difference to the torque! Continued producing the M104 series for a decade until its succession by the M112 engine lies the! All modern technologies of engine development later in this article we examine the options for your car really. Series is the main goal to any engine modification job to push fuel and air the... 2 ) leaks from the air during the suck phase from the engine has aluminum cylinder with... Stratified-Charged gasoline injection ( CGI ) more or less aggressive cam durations check your engine to work we you! 2000S in many expensive models of Mercedes products, in predetermined sets, in.