Cast pistons.Block Design: Closed DeckRedline: 7000. Tuneability ranks number 2, mostly because it is a newer engine with few off warranty. Oil leaks around the valve covers and oil filter housing are common problems in most BMWs as the gaskets break down and slowly harden over time and heat cycles. Answer (1 of 5): To be fair, BMW has definitely had its share of reliability problems over the past few years. And if they are, can the transmission ratio be changed? Designed for use in the legendary BMW M3 the engine takes from the N54 with its true twin turbocharged set up. Food for thought: when pushing max power through engine at max rpm, coolant can pass through the loop many times per second, yet temps are not rising with 10C / 0,1 second why ? my buddy still has: Due to its age, the N54 is generally cheaper to purchase and offers the best value when comparing the cost to purchase, and the ability to tune the engine. Do you want to get more excitement out of your B58-powered BMW? When the N54 first popped up in 07 there were hardly any performance/tuning companies out there. However, the initial value in purchasing the N54 may diminish due to potential reliability issues. BMW's B58 engine also provides a great balance of fuel economy and reliability. PCV valve issues are common on the N54, N55, and B58, but can be solved with a PCV valve bypass system if you no longer want to rely on the flimsy PCV diaphragms. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. hopefully BMW will sort this out. First, let me say this is awesome info and Im grateful for it. Really appreciate the info. Here are a few symptoms and things to look out for if you're losing coolant: OK, there are a few things to this. Be on the look-out for more of these issues to pop up in the coming years. I imagine a lot of (even most?) Now, we left out some potentially promising information. I have a 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles. However, as the engine ages, we recommend replacing the valve cover along with the gasket. Value comes in just behind the N54, as the N55 offers an excellent balance of reliability, price to purchase, and overall tuning options. Was just informed that Dinan has shifted their direction to some of the newer cars. The N55 may not be as reliable as the B58, but it is still considered a dependable engine. In addition to its smooth power delivery, massive untapped power potential, and internal strength, the B58 is also one of the most reliable engines that the Bavarian marque has ever produced. Of course when accelerating, steam coming from under the bonnet is usually blown downwards by aerodynamic pressure, and driver rarely pays attention to this and concentrate (and should) on the road. It is usually just one of the sensors but I would do both anyway. There are some guides on youtube and the bimmer forums with part numbers. Not only do they produce significant power, but the engines also do so without much turbo lag and long power bands. About heat capacity of water / glycol. Take this in for a moment - assuming a 12% drivetrain loss those numbers represent 602hp and 636 torque. ps. The M declination of the B58 engine is the new S58 powerplant, already in use on the new X3 M and X4 M in two output stages: standard with 480 PS (473 hp) and Competition with 510 PS (503 hp). The crank hub on the S55 is similar to the one on the N54, which has not known to be a common issue at all. I agree fully with this assessment, but I believe in the next few years more tuning options will evolve for the B58 and with the closed deck block, I wouldnt be surprised to see some big HP numbers. It has honestly amazingly smooth power delivery and sounds better. About other part of your comment. We did not include that as we do not consider carbon build-up an issue. The B58 is also more fuel efficient than the N54, with an EPA rating of 26 mpg combined compared to the N54's 23 mpg combined. Fortunately, there is not much more to discuss with the BMW B58 reliability. Though, it may be excessive on lower mileage B58's. Copyright 2021 - 2023 BMW Tuning LLC. Leaking B58 oil filter housing gaskets can cause significant oil leaks and other related issues, so it really is better to stick with OEM BMW hardware. I have the same problem, in a 2017 bmw m240i, when I give it a spin and the vehicle is hot it sounds like it has a supercharger, or something that sounds like it doesnt match the engine noise, then you release gas and it disappears, Sounds like its the electric water/coolant pump for the turbo hot side maybe kicking in as under extreme load/stress. . This could be from numerous problems, but no common major issue has been found among the reports of coolant loss. Has anyone managed to get this problem sorted out yet?And if so could you let me know The car surges when doing this and its obvious that its nothing to do with my driving style. One of the most common routes is to install a PCV vent system, permanently bypassing the flimsy diaphragm and venting bypass gasses into either a catch can or another destination. Ever since the twin turbo N54 hit the markets in the 2007 BMW 335i, BMW has been building on the design of the turbocharged, direct injected inline 6 engine. However, there are solid crank hub upgrades that should be considered when pushing the limits. Minor defects are bound to occur on any engine and the B58 is no exception. DIY the basics (oil, brakes, spark plugs, etc) $500 to $1,200 a year And there are special cases which upgrade engine by about 100%, and daily it, without increasing service frequency, without preventive maintenance and in 20k miles bearings are gone, chain is snapped, rings are worn off. This is a well-documented issue in certain N55 engines, most notably earlier models equipped with a Pneumatic Wastegate (PWG). All rights reserved. Thanks! Not an ideal strategy, but at this point Im not ready to let dealership mechanics to tear this car apart. Some owners are reporting coolant losses in the main tank and possibly in the second tank. From day one of delivery, I have often smelled coolant. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. Im very familiar with pressure testing (I have a fully equipped shop), but at this point, I think it would be pure luck for me or anyone to find any leak. Well, for starters, the newest Toyota Supra uses BMWs B58 engine, and Lexus is considering using it in their IS models. Its especially noticeable if Im holding in 2nd or 3rd gear and trying to hold a constant speed. One dependable BMW engine, the N52 inline-6 featured in the E90 325i, 328i, and 330i, has already been covered in detail. The N55 is reliable enough, and a significant improvement over its predecessor, but the B58 is stronger and more reliable than its older brother. Minor leaks may not produce enough smoke to notice. We may receive a commission for purchases made through these links. ps. We use cookies to improve your experience on our website. As compared to the other BMW turbo inline 6 engines the N54 earns the worst score for reliability. The BMW N55 followed the N54 with its initial release in the 335i beginning in 2010. Acnam Infotech, BMW Tuning - BMW Performance & Tuning Guides, News, Videos. Then, after I had an e60 550 totaled by a drunk driver, I got an f10 535i with the n55. Never put excessive loads on the engine when its still cold. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. I have had all 3, I had a 535i e60, with the n54. Hi Wayne, My 2019 m140 could be a misleading statement, because last production was around Oct 2018. One problem that may be found are issues with the stock crank hub. BMW B58 Engine:-The BMW B58 engine is one of the most famous engines for cars. Replacing B58 VANOS components does NOT require lifting the engine. Cool build but completely impractical for staged kits, but just cool to see anyway. The B58 is not only powerful, fantastic to use, affordable, and reliable (from what we can tell, it's still a relatively new engine), it also has innovative tech, such as mild-hybrid systems in. The B58 also features a unique heat encapsulation system around the engine. The rough idle is a symptom of the VANOS solenoid. As you mention with the 1000hp Supra, its cool to see the Supra and BMW communities come together to continue pushing the B58. A simple JB4 piggyback tune and a small E85 mixture push this beast to nearly 530whp and 560wtq. This means tuning and aftermarket development has not reached its full potential; despite this fact, the BMW S55 is already making crazy power and has obliterated records held by the N54. Right by the timing chainat the back of the engine. Woodcliff Lake, NJ - Jan. 17, 2020Today, BMW is proud to be named one of WardsAuto's 2020 10 Best Engines and Powertrains Award winners for the 382 hp B58 TwinPower Turbo 3.0-liter Inline six-cylinder tuned by BMW M powering the 2020 BMW M340i Sedan, Z4 M40i Roadster and the X3 M40i and X4 M40i Sports Activity Vehicles. Ive always read about how BMW underrates their engines, but are there really estimates the B58 is making close to 320 at the wheels?! However, it can be hard to catch with this symptom alone, as the B58 also has other oil consumption issues. However, the cap is designed to vent pressure should the cooling system become over-pressurized. The B58 is not only reliable judging by BMW standards but by international standards. Hi Hank, Ive currently been having issues with my M140i. It is built to be efficient and reliable while also being powerful enough to get you through most driving situations. or these are minor for this strong engine? If you get a downpipe and aftermarket tune youll definitely want to remove the cold start function. Haha were always down to go harder and push things to the limit. Im trying my best to absorb as much as I can. I had the 4.2 I6 in both my 1975 Landcruiser (FJ40) and my 1978 Jeep CJ-7. . Ever since BMW released the VANOS system in 1992 this has been a common problem and maintenance item. e92 168k miles (tune about 30% up) After numerous visits to my local bmw dealer, it got a new engine. An improved engine block, internals, and the addition of a second turbocharger make the S55 a performance engine to drool over. Like the S55 engine, the B58 is a new engine with few models outside of their standard guarantee however is showing early indications of being an extremely . 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