Mercedes benz engine defect class action settlement class. Mercedes engine defect class action settlement top class. Apr 10, 2019 causes for balance shaft failure in mercedes by aandmautowpuser april 10, 2019. Mercedesbenz m272 engine wikimili, the best wikipedia reader. M272 engines family the mercedesbenz m272 engine is a v6 automobile piston engine family used in the 2000s decade. Following on from my complete m271 engine thread please feel free to add resources to this thread for the m272 engine. Jun 21, 20 the video shows a simple method to be used on m272 engine in order to spot and detect the balance shaft failure based on a alignment of pulley. Common mercedesbenz m272 engine trouble desert oasis. While these issues are common, they are certainly frustrating for mercedes drivers who. My old 2006 ml350 just had this happen about 3 weeks ago. If a class member has already paid to have the engine defects repaired, mercedes will reimburse a. Im need bolts torque specification valve cower, oil pan, front timing cower, balance shaft counter bolt, can shafts, crank shaft pully,timing chain tensioner, and flay wheel.
The mercedesbenz m272 engine is an automobile piston v6 engine family used in the 2000s decade. Introduced in 2004, it is based on the m112 v6 introduced in 1998. Furthermore, the symptoms may come on suddenly around more than halfway to your 100,000mile engine checkup. Engine diagnosis warning lamp lights up, fault codes 1200. Mercedesbenz m272 m273 engines me97 common failures and fault codes.
Figure 1, 2 and 3 show extremely worn sprocket gears. May 10, 2016 unfortunately, it is the balance shaft gears that show up with glitches for most mercedesbenz eclass models with the m272 engine built during the period of 20042008. Mercedes produced certain models with defective gears in their balance shafts m272 engines or with defective idle gears m273 engines. The manufacturer of the balance shaft did not properly harden some of that production run. When replacing the balance shaft on engine m272, the counterweight must also be replaced. Offer auto tools specialty tools car and truck repair tool manufacturer company.
Mercedes engine tsb transmission mechanics engines scribd. Engine diagnosis warning lamp lights up, fault codes 1200 and 1208 stored in motor electronics control unit. Mercedes has agreed to cover qualified future repairs up to 10 years or 125,000 miles to the sprocket of the balance shaft gear in m272 engines or the idle gear in m273 engines. Mercedes benz engine defect class action settlement.
Mercedesbenz m272 m273 engines me97 common failures. And from what i saw the early m112 and m1 powered w211s now sell for more than the later m272 273. Mar, 2017 mercedesbenz balance shaft problems and how to check your car. The m272 engines are equipped with defective balance shafts gears which wear out prematurely, excessively and without warning, purportedly causing the vehicles to malfunction, the check engine light to illuminate and the vehicle to misfire andor stop driving. Sep 01, 2011 being impaired by a worn sprocket on the balance shaft on engine m272 or by a worn guide idler gear for the timing chain on engine m273. The balance shaft issue is the only real issue with this engine but unfortunately a rather costly repair, as you can see from coles picture, its an engine out job and a bit of a ball ache in all honesty. Genuine mercedes benz 2720302872kt engine balance shaft kit.
The m272 and m273 engine introduced in 2006 have had problems with the timing resulting from a worn balance shaft sprocket m272 or timing chain idler gear on the m273. Remove bolt 3a and remove the centrifuge lefthand thread 3 ba01. Balance shaft counter bolt step 1 15 nm step 2 additional 90. Order individual parts and kits specifically to a vin number. Possibly 14 million engines affected worldwide took 3 years to figure that out. Note that only the 272 and 273 engines are susceptible to balance shaft failure. The balance shaft in the early mercedesbenz m272 v6 engines was known to have problems due to soft metal being used in the manufacturing process of the timing gear. Aug 28, 2012 dear all, hope some one can shed a silver lining on my problem. The cat is out of the bag and people know to avoid these cars. Over time, this gear wears down, causing timing to be thrown off. Eclass w211 the dreaded m272 balance shaft new member here, looking forward to jumping into this forum. Genuine mercedes benz 27203006 engine balance shaft kit. Without admitting wrongdoing, mercedesbenz has agreed to settle a lawsuit concerning m272 and m273 engines with defective idle gears and balance shafts.
Mercedes m272 and m273 have a timing chain problem. Knowing these four pattern failures of the me97 engine controller for the 272273 engine can help expedite your diagnosis and avoid replacing the wrong parts. The balance shaft and counter weight are specific to engine designation. Mercedes has known all along about the existence of a defect with the balance shaft gears in its m272 engines and idle gears in its m273 engine, yet it has concealed that knowledge and deliberately omitted any information or dissemination about its existence, the class action lawsuit says. Mercedesbenz m272 and m273 engine lawsuit preliminarily approved. The definitive guide to the mercedesbenz m272 and m273.
Balance shaft and idler gear sprocket many early production 20042008 m272 and 273 engines were manufactured with balance shafts or in the case of m273 engines an idler gear sprocket that would get eroded aggressively by the timing chain. The complete m272 engine thread mbclub uk bringing. The aluminum dohc cylinder heads have 4 valves per. The mercedesbenz m272 engine is a v6 automobile piston engine family used in the 2000s decade. Mercedes balance shaft gear issues pro car mechanics. To repair engine, replace the balance shaft on engine m272 or to replace. How many of the m272 motors got problems with the balance shaft. How many of the m272 motors got problems with the balance.
Mercedes benz engine defect class action settlement class eligibility you are a member of this class action if you purchased or leased mercedesbenz vehicles in the united states that are model years 20052007 equipped with m272 v6 or m273 v8 engines bearing serial numbers up to 272930 468993 or 2739 30 088611, respectively. The belttdi from vw but have no control chain, but the balance shaft is driven by spur gears. Looking to buy a m272, wondering about the balance shaft. The engine in the c230 is known by mercedes benz to have issues due to a poorly manufactured gear on the balance shaft also known as the counterrotating assembly. Kit contains balance shaft, counterweight, camshaft adjuster magnets, chain tensioner, exhaust manifold gaskets, impulse wheels, oil filters, crankshaft seal flange and crankshaft seal. Every order is trackable, meaning youll know exactly where your balance shaft kit is at every step of the shipping process. Causes for balance shaft failure in mercedes by aandmautowpuser april 10, 2019. Mercedes benz balance shaft tsb m272 n273 mb medic.
Introduced in 2004, it is based on the m112 v6 introduced in 1998 all m272 engines have aluminum engine blocks with a 90 vangle with siliconaluminum lined cylinders. Mercedes balance shaft gear failure and repair on v6 m272 and v8 m273 engines. Some mercedes v6 and v8 m272 m273 engines are prone to a failure of the balance shaft sprocket or idler gear sprocket. Balance shaft sprocket m272m273 mercedes slk world. Like the m112, a balance shaft is installed in the engine block between the cylinder banks to deal with vibrations in. Timing chains and balance shaft repairs foreign motor works.
Mercedes benz m272 engine timing chain repair replacement. The fitted pins 2d determine the installation position of the centrifuge cover 2. This would cause the engines to fall mechanically out of time, would produce cam and crank timing. Telechargez comme pdf, txt ou lisez en ligne sur scribd.
There are different versions of these engines for different models. Mercedes m272 engine service repair manual known m272 engine issues. I know they fixed the problem in the models after september 2006, but if you have one of the old models can you then be sure the problem will arise someday or can you be lucky and nothing happens. The mercedesbenz m272 was a v6 petrol engine that was first introduced in 2004 to replace the m112 engine. The repair tips provide basic information concerning disassembly and reassembly of the m272 and m273 engines. The one shown in the above example, 273 967 30 080 276 is my clk550s m272 v8 engine. Since the balance shaft gear is driven by the timing chain, which keeps the engine rotating synchronously, when it fails, the timing. Find genuine mercedes, a27203006 balance shaft kit 27203006 at discount prices in our extensive dodge, mercedes auto parts catalog.
The repair tips provide basic information concerning disassembly and reassembly of the m272. At a 40 crank angle after downward and pull balance shaft 5 ignition tdc the fitted pin 8 is aligned with. Oct 15, 2010 mercedes has known all along about the existence of a defect with the balance shaft gears in its m272 engines and idle gears in its m273 engine, yet it has concealed that knowledge and deliberately omitted any information or dissemination about its existence, the class action lawsuit says. Servisni list vymeny termostatu na motoru m272 w203, m273 w209. Genuine mercedes 27203006, a27203006 balance shaft kit. Vehicles with known fault balance shafts with soft metal. Core charges are assigned to parts that have reusable components by manufacturers to encourage the return of the used units. What happens is the timing chain wears the softer metal on the sprocket down and in turn slack is developed in the chain.
Beyond the balance shaft issue the 272273 are too complicated for their. Timing chains and balance shaft repairs foreign motor. Dear all, hope some one can shed a silver lining on my problem. When inspecting the component, refer to figure 1 for an example of a damaged gear.
Mercedesbenz balance shaft problems and how to check your car. The mercedesbenz m272 engine is an automobile piston v6 engine family used in the 2000s. Mercedesbenz m272 engine wikimili, the best wikipedia. Mercedesbenz m272 and m273 engine lawsuit preliminarily. Autohausaz offers a large selection of genuine mercedes parts online. The last one i had in with this fault swarfed the engine so bad we had to put another one in. Unfortunately, the gear itself is not a replaceable item. Premature wear of the gears in the balance shaft module. Jun 23, 2015 without admitting wrongdoing, mercedesbenz has agreed to settle a lawsuit concerning m272 and m273 engines with defective idle gears and balance shafts. The material for the balance shaft sprocket and the timing chain guide wheel idler was modified on. As a result, a balance shaft was installed in the engine block between the cylinder banks to reduce first and second order inertial forces.
Previous mercedes benz balance shaft engine issues. Developed in conjunction with the m273 v8 petrol engine, the m272 engines cylinder banks were at a 90 degree angle from each other. M272 v6 engine durability mbclub uk bringing together. Mercedesbenz m272 engine the mercedesbenz m272 was a v6 petrol engine that was first introduced in 2004 to replace the m112 engine. Sep 06, 2016 mercedes m 272 engine balance shaf replace.
Defective gears in the balance shaft is a known problem with the m272 3 engines prior to 2009 yet mercedes refuses to issue a recall they have issued technical service bulletins internally. Mb fixed the balance shaft issue half way through the 07 model year but all m272s before that are suspect. The workshop was conducted preventive action to avoid major damage. Mercedesbenz v6 and v8 engines had timing chain problems caused by balance shaft and idler gear failures. The chain of sintered steel has manufactured with different material compositions. Mercedes c 230, slk 280, slk 350, and cls 350 2004 to present. Perform a visual inspection for wear of teeth on sprocket of balance shaft m272 or of guide idler gear for timing chain m273 by removing the timing case cover on the engine. Stiffer engine with lateral main bearing attachments. Petition for mercedes benz to honor repairing the known. Mercedes m272 engine is a v6 engine first introduced in 2004, and found in the following mercedes model vehicles in the following model years. The m112 and m1 engines built between 1999 and 2005 have been very reliable with respect to timing chains and in general. I say old because we only had the car for a year and it had nothing but problems. This is by far one of the most common problems with mercedesbenz models, including e25, e30, and e35.
For mercedes genuine w203 w251 c350 r350 engine balance. Balance shaft gear problems are most typical among v6 piston engines, primarily the mercedes m272 in models manufactured between the years 20042008. Due to defects in materials may be in cars of the construction period april 2004 to september 2006, a gear wear on the timing chain of m272 273 engines. Apr 26, 20 how many of the m272 motors got problems with the balance shaft. Unfortunately, it is throwing the codes that point towards the balance shaft issues, the engine is also leaking oil from the back as is the rear differential and the steering, comand has stopped receiving satellite signals, the drivers seat has split, recently the thermostat blew. M272 m273 balance shaft sprocket failure p1200 p1208 p0016.
The video shows a simple method to be used on m272 engine in order to spot and detect the balance shaft failure based on a alignment of pulley. Mercedesbenz is one of the top germanengineered vehicle brands, making them a popular choice for those who love value in their luxury vehicles. The next three digits are just a variant number for the engine. When the balance shaft gears start failing, youll probably hear a. In my 20062007 the fuel pump relay control pin 17 can fail intermittently.
556 792 357 256 403 1056 123 156 1213 183 167 1398 158 1080 84 181 1477 1600 1524 1299 1484 11 353 1352 421 160 1179 1541 312 678 1329 766 459 778 328 389 1065 645