Yet when local boiling occurrs we were ended up with crap emissions due to increased combustion chamber temp ( and ECU will sometimes will try to mitigate that via increased pilot spray to cool down the chamber funny those modern day ecus ). Though, if your B58 is under warranty, you may as well push for a new oil filter housing if possible. Thanks for the great read. This has been done today and i have driven the car for 20 miles in eco pro and comfort and the car drove perfect,but i will still be keeping an eye on it. It's always the minority of people with issues that shout the loudest. We use cookies to improve your experience on our website. Guessing you are all semi-auto owners.. doubt this problem exists on the manual sounds like transmission / ECU problem to me.. #. 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. Im trying my best to absorb as much as I can. Hi Adam, Thanks for the information. Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. Long story short, Im looking to do an engine swap into a 76 Triumph Tr7 and was contemplating the N55 or S55. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Absolutely excellent comparison, Zach. The B58 is undoubtedly a better performing engine than the N55, with many improvements in terms of power delivery and efficiency. However, it wasnt as drastic of an improvement as some say. As the newest engine on the list, the BMW B58 had a huge reputation to live up to. I dont want to be that guy. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. It makes hellcat owners cry all day, every day. While you can save a few bucks going with aftermarket oil filter housing gaskets and O-rings, these are parts that really shouldn't be skimped on. Cant wait to compare the BM3 to the Dinan Stage 1. Someone knows what is due? I took my car to the dealership, they did pressure system check, but they didnt find any leaks. e91 189k miles Would a swap to s55 be ruinously expensive and difficult? . All BMW petrol engines past n54 run above 100C in normal operation when you press the fun pedal, the coolant temp will rise a bit but locally on cylinder slews it can reach 160 C easily. Thank you for your comment. Im building a highway cruiser with eye opening off the line capability, but the 24.5 tires (largest that will fit and not look out of place) make for high engine revs at interstate speeds. Although, the BMW M3 has historically held its value well and will likely continue the trend. The B58 is more reliable than the N55. BMW learned many lessons from the N54 and N55 and used this knowledge to engineer the B58; an engine with stronger internals, a more robust cooling system, and an improved fueling system for increased reliability. Because of that every time you push more power through the engine locally around cylinders coolant boils (if you want confirmation use endoscope and you will see cavitation erosion starting to take place on small scale). Thank you, Zach! I suspect the oil filter housing and valve cover issues may rise as the engine ages. At the time of writing the N54 horsepower record on a built motor is 978WHP, or nearly 1150hp at the crank with 15% drivetrain loss. A tune and bolt-ons will take the B58 into the 400whp+ range; outstanding for a 3.0 L engine, but nothing insane compared to BMW's other inline-6 turbo engines. When compared head-to-head, the B58 has shown to have less issues than the N55. Huh, B58 can make a lot of power and is the best for reliability. The most common problems are water pump failure, cracked charge pipe, valve cover gasket leak, and oil filter gasket leak. Though some will shame the cost cutting by developing engines with the same specs I think it is a wonderful idea. Soooo if you have some noise under load best record it from engine bay. N55 is better than the N54, but its just a reliability upgrade. when removing the reservoir cap, I noticed a bunch of crustiness. Why? One dependable BMW engine, the N52 inline-6 featured in the E90 325i, 328i, and 330i, has already been covered in detail. My regret (not even a problem) was that when moving from E to F, BMW matched gearboxes and diffs more closely to stock engine torques, which in my mind was a bit of step back, because you could always count on 3 things with BMW gearboxes in the past 1. they did not provided greatest feedback 2. they always had decent of headroom potential tune 3. every-time you changed gear you felt like you reloaded WW1 full caliber rifle. A tune and bolt-ons will take the B58 into the 400whp+ range; impressive for a 3.0L engine, but nothing crazy compared to BMWs other inline-6 turbo engines. Dont hesitate to pack those with even more detail ! Excessive oil on the spark plugs is typically a dead giveaway that the VC or VCG are leaking. The VC is prone to cracking and leaking, too. the vanos solenoids were a 20min job with a cold engine. Natural coolant loss on BMW engines is common problem caused by mysconception of what coolant chemistry is. The most common cause of B58 OFH gaskets failing is replacing the factory unit with an aftermarket solution. Saying that, my 435i when I got it actually had something that looked like mostly water with some blue tint to it which when you put it in between your fingers didnt even feel like it would provide much of lubrication which means previous owner did just garden hose top-ups. After numerous visits to my local bmw dealer, it got a new engine. Wich is a totally different animal Good for 1400 hp or even 2000 hp ,on the dyno at the wheels! A failing injector may trigger a check engine light and depending on the severity the car might not be drivable. We did not include that as we do not consider carbon build-up an issue. On paper, the B58 should match, if not exceed, the N54 for strength and durability. Deposits can cause misfires and power loss. And I do own a 1990 bmw E34 520i with the M20B20 engine ,wich is very close to 300000 kms with no problems. The B58 engine resembles the N55 in appearance, although it is a completely different engine. If you can pull out the broken filter, inspect and clean any debris. Many issues with their turbo engines. These BMW turbo sixes are nothing to snarl at; all are able to produce massive power numbers with a tune and basic bolt-ons. B58 engine reliability BMW engineers were able to resolve the main issues with the engines that preceded the B58, including: Updating the fuel system Modernizing the cylinder head They fixed issues with the particulate filters A fresh design for the timing chain The closed deck block is huge, but the N54 never really had issues with the open deck design. Additionally, it receives the forged crank and rods as with the N54. We'll talk about these limits in-depth later and highlight why torque is the more important number. Just remove all the plastic covers and you can get your hand back there. Steph Papadakis and his boys are making 1000HP @ ~42psi on a 2020 Supra B58. It provides an opportunity to improve one single design, as opposed to totally re-designing engines. Developed & Maintained by Acnam Infotech, BMW Tuning - BMW Performance & Tuning Guides, News, Videos. Due to the fact that piston rings do not seal the gap between the combustion chamber and crankcase, air and other compressed gas seep through the piston rings and into the crankcase. Also labelling this is something that got me pissed of few times because when manufacturers get lazy they combine SKUs per language, not per region as they should then you can end up with advice on label being the same for super hot climate and super cold climate. Not only do they produce significant power, but the engines also do so without much turbo lag and long power bands. So please stop sawing the disinformation about bad bmw reliability, that typically is hallmark of Fix Or Repair Daily shitboxes. Thanks! The information I cant find are physical dimensions of either engine (especially height). This can result in oil-rich gasses being pumped into the intake manifold. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. It will save you tone of money in unnecessary repairs bills. Just purchased a 2021 M340. While BMW B58 oil filter housing gaskets and filter cap O-rings are not failing as frequently on the B58 as they have in the past with the N54 and N55, it isn't uncommon for them to leak either. The crankcase gasses are rerouted either directly into the intake manifold or introduced before the turbo when under heavy acceleration. Since the initial release of the BMW N54, the engine has gained quite a positive reputation in the tuning community. Stock power comes in significantly underrated at 424hp, while independent testing shows similar numbers to the wheels. Good luck with finding the issue with yours. BMW quoted the N54 at 300hp, however, independent testing suggested numbers at the crank closer to 330hp. Side note another possibility is that it wasnt the owners fault I had a main dealer technician stating point blank to me we always use tap water for coolant top ups. Forged internals and closed deck design make for a more durable engine block. From day one of delivery, I have often smelled coolant. Although, the single turbo will likely limit its capabilities without upgraded turbo(s). Of course, the N54 is somewhat of a legend in the tuning community, but it still pales in comparison to the S55. The B58 is part of BMW's new modular engine family, each engine using a displacement of 500 cc (30.5 cu in) per cylinder, following the B38 and B48 engine.. Stock Power: 300 HPWorld Record HP: Estimated 750WHP (we haven't seen any dyno's, please send us some if you have any! Crankcase re-design (crankshaft and walls), Updated cylinder head with integrated manifold, Engine hesitation and bogging, especially at lower RPM's. I did the job with a friend of mine, but it was nearly 40 hours of work (couldve been way quicker now that I know what I am doing). **Ranks are as compared between the four turbo, inline 6 engines**. Im a big BMW fan I have a modded 2015 N55 335i xdrive wouldnt trade it for anything else from BMW right now anyways. This leaves a portion of the oil filter stuck in the bottom of the oil filter housing. Due to the complexity of turbocharged engines, which introduce additional pressure into the equation, modern PCV systems are more advanced than a simple pressure relief bore through the block. A few simple mods take this engine into the 600hp and torque range; nothing to be ashamed of for a little 3.0L inline-6. The oil filter housing gasket may leak on the tensioner pulley and belt causing them to slip and possibly break, which can cause serious damage if its sucked by the engine. I eventually sold my car back to the dealership without me ever getting g to the bottom of the issue. 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. Injectors are getting loud again at 200k so its time to replace them. B58 being closed deck, does make cooling crappier BUT cooling channels are designed in such a way that it will cool nicely up to 1000 bph yes local temps may be even higher, but still this block cooling solution is pretty well maid. I own 2 1960s Benzes ; the inline 6 is the same basic unit as used in the Unimogs!Tough as nails and likes to rev. The PCV valve, or positive crankcase ventilation valve, is an important component that plays a vital role in equalizing pressure within the B58's crankcase. Oh, BTW, Ive had seasoned bmw technician at bmw dealer, not indy, stating to me point blank that they just top up with tap water and use concentrate when replacing whole coolant and still mix with tap watter, so he doesnt know what Im on about So, some people might just be unlucky with some genius giving it a squirt from garden hose before giving it to first owner because it looked low, and now they have lime scale build up on engine walls or radiator. Do you want to get more excitement out of your B58-powered BMW? However, fault codes will help point you in the right direction. Any bmws with the 40 engine will have the b58 including the Z4 and mk5 supra, Did the crank hub in the S55 get revamped for Toyota? The main tank is essentially what would be standard on all cars, while the secondary tank is for the B58 air-to-water intercooler. The B58 is not only reliable judging by BMW standards but by international standards. Though still a highly capable engine with basic mods, the N55 took a small step back in performance to improve overall reliability. It seems the coolant loss has now accelerated. . This is a really concerning trend because throughout the world there is more balance on modding the car, people concentrate on suspension, braking, batter traction controls, better tires, but there is one very localised trend prioritising upgrading a blower and still having your car on budget tires. 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