This is what Mercedes technicians refer to as “the balance shaft problem.” The balance shaft is a weighted shaft Mercedes installed in V6 engines to improve smoothness. I am on a couple of slk forums and the r171 especially it seems of 2005/2006 years suffer badly with subframe rusting. Furthermore, the symptoms may come on suddenly around more than halfway to your 100,000–mile engine check–up. Today: Brad is counting on you. Look for one that had them already replaced or one with updated gears – check the engine serial number. ... A few years ago, we sent a 50-year-old Ferrari 365 to auction for a client. The M272 uses a 90° V angle like most V8 engines. Balance shaft gear problems are most typical among V6 piston engines, primarily the Mercedes M272 in models manufactured between the years 2004–2008. ... And there is a five-year free service deal and a five-year warranty, as well as talk of a guaranteed future value scheme. Even if I … Early signs of this problem are the check engine light and engine noise. Balance Shaft A lot of 2006-’07 model year Mercedes-Benz W164s came with M272 and 273 engines. I have a 2006 Mercedes E350 Wagon 4Matic with 98,000 miles. Order individual parts and kits specifically to a VIN number. New member so here is my first post and I wish it was about something more positive. This problems can appear with the balance shaft gears affect up to 10% of Mercedes equipped with the M272 engine from 2004-2008. This is a very expensive repair ranging between $3800 to $5000. MB fixed the balance shaft issue half way through the 07 model year but all m272s before that are suspect. Mercedes Benz has a major engine problem in it's 3.5 liter engines made between 2004 and 2008. The balance shaft sprocket on early engines was made with weak materials. c) Replace the engine oil pump. The issues like the timing chain shaft ‘should’ not be a problem. The balance shaft’s gear also acts as an idler pulley for the timing chain. Unfortunately, Mercedes-Benz improved the balance shaft gears only in 2008. The engine in the R350 is known by Mercedes Benz to have issues due to a poorly manufactured gear on the balance shaft (also known as the counter-rotating assembly). Had serial numbers prior to 2729..30 468993; and, Were manufactured prior to October 2006. Car has 60K miles on it and we have not had the balance shaft issue but are concerned, I checked the engine number and it is in the "bad range" .. .two questions: 1. 1 Jul 2016. The balance shaft horror story and the overly complex variable intake manifold mechanisms are the only real issues with these engines. I've done some research on this forum on the M272 engine issues. Shopping for a Mercedes-Benz? The Mercedes-Benz OM642 engine is a 3.0 litres (2,987 cc), 24-valve, aluminium/aluminium block and heads diesel 72° V6 engine manufactured by the Mercedes-Benz division of Daimler AG as a replacement for the Mercedes straight-5 and straight-6 cylinder engines.. … If the timing chain fails, the pistons can hit the valves and cause severe damage to the engine. The cat is out of the bag and people know to avoid these cars. Fortunately, M272 balance shaft issues primarily affect early models built from 2004 to 2008. M272 Engine Mercedes Benz Problems with Balance Shaft Gear. I just brought my car in 4/25/2013, 2006 clk350 - I only have 28,000 miles - the car ran ok but check engine light was on so it couldn't pass inspection - I've been advised of the balance shaft failure and that i will have to take out a second mortgage to pay for the repair, but as of now the car sits in the repair shop awaiting my decision. Mercedes Balance Shaft Gear Failure and Repair on V-6 M272 and V-8 M273 Engines. Similar to the M112 engine, it also uses a balance shaft installed between the cylinder banks in the engine block to eliminate vibrations. Mercedes installed a balance shaft on the M272 to help combat these vibrations. Good for you, but don't buy anything untill watching this video. Note: When replacing the balance shaft on engine M272, the counterweight must also be replaced. Buy an early one - if the balance shaft issues raises it's ugly head it's about £2-2.5k at a good independent Mercedes specialist to get fixed properly. The Car Stall problem. Engines with the balance shaft worn sprocket were Mercedes-Benz 350 models (Example: E350 C350 etc. ) Since the balance shaft gear is driven by the timing chain, which keeps the engine rotating synchronously, when it fails, the timing of the engine will change causing: And from what I saw the early m112 and m113 powered w211s now sell for more than the later m272/273. Show More. This part is a steel gear and shaft that drives the timing chain and the variable valve timing chain. ML350 balance shaft. In May 2011, Mercedes-Benz issued service bulletin LI03.30-P-050027 for Mercedes-Benz R171 SLK 280 and SLK 350 vehicles that had M272 V6 engines which:. Unfortunately, Mercedes-Benz improved the balance shaft gears only in 2008. If you are going to buy an R171 with the M272 engine, be very careful not to buy one with worn gears. The Most Common Problem with Mercedes-Benz Engines Unfortunately, it is the balance shaft gears that show up with glitches for most Mercedes-Benz E-class models with the M272 engine built during the period of 2004-2008. Check engine light came on so I took the car to my Mercedes dealer who diagnosed the problem as needing a new balance shaft… Is this for sure going to happen at some point in the future? I Was Planning on buying a CLk 286 v6 reg 2006 cab but having doubts now regarding the balance shaft … Engines with the balance shaft worn sprocket were Mercedes-Benz 350 models (Example: E350 C350 etc. ) That should cover everything you need to make a decision whether or not you want to get into one of the many awesome Mercedes with the M272/M273. Have been advised a minimum repair estimate of £2000+vat, but the garage cant guarantee furthur damage may have occured as a result, so an alternitive may be a replacemnt engine, salvage/recon warrantied again £2000+vat+fitting. Average repair cost is $4,640 at 89,000 miles. Repairing the balance shaft gear requires the removal of the engine. There are lots of reports about wear on the balance shaft and the timing chain. Mercedes-Benz is currently trying to recapture the number one position in global luxury sales, but a quality problem on its home turf in Germany seems to be undermining confidence in the brand. I believe it may have an engine that could suffer from the balance shaft problem. If it is determined that the engine requires a balance shaft, it is an engine out service and our repair kits can be found at this link. To smooth out engine vibrations, the engineers put a balance shaft in the center of the engine that is turned by the timing chain. If this was going to suffer balance shaft issues would it have done so by now, so would it be safe or a gamble? The balance shaft on my 2006 M272 engine has gone after only 89,000 km. Mercedes has produced several thousand engines with defective balance shaft seen in model years 2005-2007 in the m272 and m273. Mercedes has not admit that there is a problem with balance shaft, it is all over the Internet, and class action suits are filed. Watch out for balance shaft and idler gear issues in the M272 and M273 engines. Engine number 272960 30 283302 It has covered 92k miles, according to seller everything is working well and no warning lights. The balance shaft and counter weight are specific to engine designation. If the timing chain fails, the pistons can hit the valves and cause severe damage to the engine. What happens is the timing chain wears the softer metal on the sprocket down and in turn slack is developed in the chain. … Answered by CarsGuide 9 Jan 2015. Are you having problems with your Mercedes-Benz ML 350? There is some weirdest problem with particular type of Mercedes Benz engines. my trusted local garage towed it in, diagnosed the problem to be "Balance shaft chain had jumped" - engine will not turn/fire. This is a known issue and costs about $6000 to fix. Early signs of this problem are the check engine light and engine noise. Apparently, there is a part inside the M-272/273 engine, known as a "balance shaft". However, that results in excessive vibration. Well, the gear on the end itself was made with too soft of a steel. You will be able to see the part number stamps in the windows. The check engine light in your Mercedes can indicate many problems, ... facility, Burdi Motorworks offers competitive pricing on all our parts, services and accessories. The engine features common rail Direct injection and a variable nozzle turbocharger. The majority of early production M272 Mercedes-Benz engines show the premature wear of the balance shaft gears. Do I have any come back with Mercedes Australia? Some Mercedes V-6 and V-8 M272 / M273 engines are prone to a failure of the balance shaft sprocket or idler gear sprocket. Brad Elliott needs your help with “Mercedes Benz: For Mercedes Benz to honor repairing the known balance shaft fault manufacturing fault, by paying for parts & 1/2 of the labor for all Mercedes Benz vehicles equipped with the W272 engines and diagnosed with the issue with vehicles less than 100,000 miles”.Join Brad and 12 supporters today. Once fixed, they are not bad units. The 2007 Mercedes-Benz C230 has 5 problems reported for engine balance shaft failure. Hey - new here and have a 2006 R350 CPO with an extra year of purchased warranty through Feb 2011. % of Mercedes equipped with the balance shaft and counter weight are specific to engine designation but m272s. Gear also acts as an idler pulley for the timing chain and overly... Shaft installed between the cylinder banks in the chain engine, be very not... 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