Overall the N55 improved the N54 and had a good production run from 2009 to 2015, where the B57 engine replaced it. There are one-off exceptions of course, but there haven't been any common problems like the N54 hpfp or the various N63 problems, or the N20 recalls. Common Solutions to Fix Valvetronic Issues Since the majority of Valvetronic problems are oil-care related, it’s important to attend to the oil level , quality, and type of filter installed in the vehicle. History, Power & Specs of the N55 Engine. Each intake valve (2 per cylinder) is opened not directly by the corresponding camshaft but by an additional mechanism which varies the valve lift. If you drive a BMW with a turbocharged six-cylinder engine, it may have a critical flaw which has left you with a ticking time bomb. Previously had E39 525i and E60 525i but both of them had smooth idle. Technically, these are two N55 BMW engine combined into one block. From hard parts to software upgrades; we have you covered. Available from 2009, the BMW N55 was a 3.0-litre inline six-cylinder petrol engine which had a single twin-scroll turbocharger. Buy the Ghassan Automotive remanufactured BMW N55 engine for $3,995 that includes a two-year, unlimited miles, parts, and labor warranty. According to those I spoke to from the BMW dealership/garage, when my engine blew, there were some N55-engines in the beginning of the F30 life cycle that were bad. Hi guys looking for some advice please. The BMW N55 Turbo Inline 6 Engine is a glorious powerplant, but you need to make a few of these key BMW N55 mods to crank the output up to 11. It is difficult to find any information regarding the failure rate, while the astronomical repair costs should not come as a surprise with such a large and complicated engine. BMW N54 and N55 24 valve six cylinder engine design notes, list of common problems and photos. ECU Tuning for N55 Engines Tuning for the 3.0 Cylinder Inline 6- cylinder N55 Engine found in the BMW 1 series, 2 series, 3 series, 4 series and more. Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most complete inventories of engine parts and accessories for German motorcars. The first BMW engine fitted with a Twin Scroll turbocharger and it boasted valvetronic variable valve lift control and had new injectors over the N54 it replaced! Both engines are all-aluminum 3.0L inline-six. The N54 was developed alongside the N53, and it’s part of BMW’s NG6 engine family. •FC 28A0 Throttle valve opening angle absolute pressure intake pipe comparison pressure too high Or NEW UPDATED SITE! The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger.It also won three straight Ward's 10 Best Engines awards in 2011-2013.. The 2013 BMW X3 has also racked up close to 200 complaints related to a faulty engine, a sign of a chronic problem. It's a big repair due to the number of items removed to replace the gasket. Prior to leaving dealer problem reacurred. All models with the N55 Engine. With its 84.0 mm bore and 89.6 mm stroke, the N55 engine had a capacity of 2979 cc. The simplest way to put it is any model with the 3.0-liter I6 “N5X” engine (engine codes N52 and N53), including the turbocharged versions (engine codes N54 and N55). Also, see repair breakdown by problem area and cost. From 2014 and forward there should be any issues. If you need a BMW engine replacement or want to upgrade the one you already have, Ghassan Automotive ca The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo.. The 2011 BMW 535 has 35 NHTSA complaints for the engine at 70,839 miles average. In the last five years, BMW, the maker of "the ultimate driving machine," has recalled about 700,000 vehicles for technical problems with … Obviously N55 cannot be said to be 100% perfect, partially due to its development falls into the period of 2008 financial crisis. It was introduced as replacement of naturally aspirated 6-cylinder inline N53B25 and N53B30 engines. One thing that is bothering me is the intermittent rough idle this N55 engine has but nothing visible on the RPM indicator. The air your BMW’s engine is consuming is mixed with both exhaust and crank case fumes that are recycled through the engine as part of today’s advanced emissions systems. (Page 1 of 2) CarComplaints.com : Car complaints, car problems and defect information The BMW N55 is a turbocharged straight-six petrol engine that began production in 2009. N series of engines (6-cylinder N52 and N55; V8 N62 and N62 TU; V12 N73, N73 TU and N74) incorporate BMW’s variable valve-lift technology called Valvetronic. BMW N series petrol engines N43, N46, N52, N53, N54. BMW attempted to fix the problem by adding a small oil cooler to later N54/N55 models – but this still isn’t enough. It covers every single detail.This QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out! This is why if you do any of spirited driving at all or just want to extend the life of your motor, you should install an oil cooler large enough to sufficiently cool the oil, keeping your engine running cool and happy. This entry was posted in bmw mechanial problems engine and tagged BMW, bmw 745i, BMW 750, bmw 750i, BMW e65, BMW e66, BMW ENGINE LAG, BMW n54, BMW N55, bmw N62, BMW n63, BMW750li, OEM AUX PORT BMW, slow at pickup, uneven power delivery at lows, weak at lows on August 24, 2016 by logic7repair. Because of the tight schedule, there were some aspects that BMW later found can be done better. Peak HP gain up to = 103+ hp Peak Trq gain up to = 139+ ft-lbs Price: $799.95 … BMW N20 engine reliability, problems and repair. Hi guys, Few days ago I purchased a 2011 535i CPO, M-Sport. BMW realized that its pumps were problematic after a class-action lawsuit, and they … ignition coils problems. The BMW N55B30 represents the current workable technical edge of gasoline engine performance and economy. Production of BMW N20B20 turbocharged 4-cylinder inline engine was launched in 2011. N20 cylinder block is made of aluminum with two balance shafts and steel-plated cylinders. The N55 engine replaced BMW's N54 engine … Repair Summary This article gives detailed instructions on replacing the fuel injectors in a BMW N55 twin turbo engine. Unfortunately, the high-pressure fuel pump is easily one of the most common problems on early E90s with the n54 engine, and the pump is also expensive to fix. Ghassan Automotive wants to provide a stress-free and convenient experience. misfires It was featured in a handful of different vehicles, but ultimately it was officially phased out for the N55 in 2011, except for the 1M and Z4 35i. Timing chain problems The N54 was BMW’s first mass-produced turbocharged engine. The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger.It also won three straight Ward's 10 Best Engines awards in 2011-2013.. BMW Engine Malfunction Reduced Power Problem warning is a common problem that effects BMW models including 335i, 535i, 745i, X1, X3, X5. Rattling noises coming from the front of the engine were indicative signs that all was not well. BMW N55 Engine Workshop Repair Service ManualThis is a COMPLETE Service and Repair Manual for your BMW N55 Engine. 51000 mi: There is, however, much more to the story. I have a similar situation as Mike, 2013 BMW X5 N55 83,000 miles, my check engine light came on took to dealer : 1 time fault code of valvetronic replacement , reset cleared codes, didn’t list exact code on invoice, the plan was to see if codes or problem return. A bit of background on the car, Its a late 2010 F11 535D I bought it on 55k miles as a BMW AUC from BMW Nottingham in July 2014. The N52 in my opinion is the more advanced engine than the N54, for example it has a lighter magnesium-aluminium block and valvetronic which is missing on the forced induction N54 engine. Throughout 2013 and 2014 BMW owners have reported numerous cases of engine failures, many of which led to terminal decline. I'm not aware of any N55 recalls at least over the past three years. This was closely followed by the vehicle coming to a complete standstill. In a multi-port injection engine, fuel is injected prior to the intake valves, this allows for the fuel to clean the buildup that accumulates on the intake ports and valves. Used in E90 335i, 535i. Conclusion. A given BMW engine can only be verified after its designation has been checked. So three years later, BMW released its successor: N55. Hi all Bmw rates it n55 engine ,Waite when the valve Tronic motor fails and semi trailer is up your ass ,it’s just the start wth there problems and the Bmw … While the N54 is a true twin-turbo engine, the newer N55 is a single-turbo engine, and therein lies the legal rub. BMW’s single-bolt crank hubs found on N54, N55 and S55 engines aren’t an ideal design for spirited driving or high-performance bolt-on modifications. Even though we used a 2011 335i to perform this repair, this article can be applied to any BMW vehicle with the N55 twin turbo including the 1,3,5,7,X3,X6 and Z4 models minor modifications to the repair steps. The N55 has proven to be reliable. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 Reliability (rod bearing problems?) This is another known issue on the N55 engine (turbo 6). However, BMW later changed the N54 engine to the N55 engine. It is a state-of-the-art powerplant available in the 535i GT and soon the 535i from BMW. If your engine isn’t able to appropriately time intake valve opening and closing, it can cause your BMW to run rough or even misfire. Precision tuned for more power and better drive-ability. BMW N54 Twin Turbo I6 Engine. See real-world BMW X3 engine problems and repair histories as reported by other BMW X3 owners. However, some drivers have reported that their N55 engine has problems beyond that, ultimately requiring engine replacement. 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