The rough idle is a symptom of the VANOS solenoid. Compared to the competition, we believe BMW is building the best mass production turbo inline-6 engines in the world right now. In normal condition like drawing to grocery and not even touching accelerator, you will never see this happening, but when doing hard acceleration because you want to get out of dodge, negotiate out of slip road and you need to rapidly gain 40mph, just having fun It is a continuing issue on the B58 and one of the most common B58 engine problems. This increases performance by. This helps with the length of the connector cable. Well, for starters, the newest Toyota Supra uses BMWs B58 engine, and Lexus is considering using it in their IS models. Appreciate any thoughts! Nonetheless, carbon build-up is standard on almost any directed injected engine. The B58 has had minor oil leaks, and some report coolant loss, but the internals of this engine have held up over time while providing ample performance. 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. Ive had fuel injectors, coil packs and spark plugs changed. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. . ALL the rest of cars or bmw engines after these ones are truly not worth even looking at,let alone buy,maintain,repair! Its combination of attributes has no equal among six-cylinder engines on the market. Just bought a 2017 340i and I really love the B58 so far. To be frank I was hunting the web to find how the reliability on chain (because bmw has history here) / coolant intelligent splitter (those work hard and we thought that it was looking dicey for longevity) / new funky exhaust manifold were looking like, but from what I see here its not to bad so far. Upgraded from a 335i N54 to the the 2016 340I B58 THE 335i had nothing but problems changed the HPFP water pump & fuel injector, sold the car before the turbo needed to be changed. Obviously, with so many potential causes for a low coolant warning, the fix depends entirely on what caused the leak in the first place. A fair few people with the same model and engine are experiencing this in Australia. For more information, check ourdisclosure. 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. Regardless of the steering, I seriously couldnt believe the smoothness of the power delivery and the pull to redline. Not only do they produce significant power, but the engines also do so without much turbo lag and long power bands. This was a great article. Minor leaks may not produce enough smoke to notice. 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. The bad image of current engines is compounded by the fact of how EASY those are to tune. BMW tech found low coolant on the low pressure side. The BMW B58 engine is a turbo 3.0L inline-6 that was first introduced to BMW models in 2016. https://www.bmwblog.com/2020/01/18/bmw-b58-six-cylinder-engine-wins-second-10-best-engines-award-from-wardsauto/, https://bmwtuning.co/the-4-most-common-bmw-b58-engine-problems/, https://www.youtube.com/watch?v=lbc4Hs-G9Rc, https://www.autoblog.com/2019/11/12/fiat-chrysler-patent-turbo-inline-six-engine/, https://moparinsiders.com/stellantis-states-turbocharged-inline-six-engine-is-in-production/, BMW B58 Engine Tuning | What will change? Hi All document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This is a wonderful post so clear and easy to follow. BMW used an electric water pump on the N55. Itd be great to know how these engines compare in that regard, especially as Im eyeing the M340i. AND reliable! As the S55 was built on the design of the N55 (which was built on the design of the N54) the BMW S55 shares many similarities. It makes hellcat owners cry all day, every day. As such, it can't hurt to replace the valve cover while you're in there. Fortunately, BMW learned its lesson on the N54 and focused on improving the reliability of its future turbo engines. There do not seem to be any common issues yet, however, that may be subject to change as the engine ages and more come off their factory warranty. 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 ). We recommend changing the oil soon after this occurs. Changed injectors, spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running like a dream. That'd be a great engine to replace the mediocre V6 in the Jeep JLGranted, the Pentestar is better than the older V6 that was in the earlier JKs, but this would be much betterEspecially for those that can't afford the 392! Considered my car is stage 1 tuned. 350-400whp will require at least a decent set of performance tires. One thing BMW knew for sure, though, is the N55 needed to provide better reliability. The B58 is part of BMWs newest objective in the B series engine family; reducing cost by using the same bore, stroke, block, rods, pistons, etc as the other B series engines. Ive had issues with my 2018 440i not idling correctly. And thats the N54 which is regarded as one of the less reliable BMW engines. Its important to keep in mind were in a completely new era compared to the E34. Hardly worth mentioning as it is only a handful. Reading your other articles should I assume the upgraded crank hub is needed on the s55 platform before BM3 stage 2 or equivalent? The VC is prone to cracking and leaking, too. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. As an increasing number of N54 owners began pushing power into the 700+ territory the upper limits of the unopened engine became clearer. Completely misread that. Im impressed to say the least. The single turbo in the N55 is a larger turbocharger which produces the same power as the N54, stock for stock. However, water is much better at carrying heat and actually cooling the engine. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. Ram/Jeep had plans to come out with a turbo powered I6 to replace the 5.7 Hemi, but nothing seems to have come from that. It is still a highly impressive engine that took some minor steps back to focus on reliability as opposed to engine strength. Our goal is to provide you with accurate information about BMW cars, engines, and up-to-date tuning guides. We appreciate the positive feedback! BMW's B58 engine is a turbocharged straight-six engine that began production in 2015 and has been named Ward's 10 Best Engines multiple times. Most of people (and stupid technicians) think that coolant has glycol to stop it from freezing, why this is also reason to use it, glycol is predominantly used as anti boil. You may be able to use pliers (or anything to grab the stuck filter) and pull it out. B58 is reliable, bulletproof and can handle hella boost on stock block. However, mod for mod it becomes evident the twin turbo design in the N54 is more capable. Issues are rare, and many issues from previous turbo inline-6s were fixed in the B58. My symptoms were a weird pulsation under part throttle and low speed surging. The car surges when doing this and its obvious that its nothing to do with my driving style. Save my name, email, and website in this browser for the next time I comment. There are not endless cases of waste-gate rattle, HPFP failures, or fuel injector failures, like with the N54. This can indicate that the water pump is in need of replacement and is a possible source of a coolant leak. It may not display this or other websites correctly. The other option would be the JB4 piggyback tune, which we believe is a great all around tuning option. Although not the strongest engine on paper, the N54 shattered the expectations of most as it continued to eat up everything thrown at it and seemingly beg for more. Thank you for the comment. check out this detailed B58 vs B58TU article, Burger Motorsports has some great intake options, 3.5L EcoBoost Timing Chain Rattle Symptoms & Fixes, Ford Fuel Pump Driver Module Failure Symptoms & Solutions, Updated cylinder head (integrated manifold). Disintegrated oil filters pop up frequently, but are not serious in most cases. This is where the B58's heat encapsulation system may come into play. Reliability scores the highest marks compared to the N54, N55, and S55. Yes, coolant lowers the freezing point and raises the boiling point. In reality these are a tiny % of the number of engines out there.And usually someone has abused it or skipped a service.I expect the engine to be very reliable and well suited to the vehicle.At least as good as any Defender engine! Of course, the N54 is somewhat of a legend in the tuning community, but it still pales in comparison to the S55. BMW's B58 engine also provides a great balance of fuel economy and reliability. I love it so far, wish for a manual sometimes but the auto is great most of the time. Im guessing something might be coming up in future Im not sure if any other b58 owners have this or if its common Leave a comment and let us know. Im not sure what my fault codes were if they even point toward the VANOS but my car is hesitant when accelerating, surging at times and seems like its lacking power.. its definitely not a smooth ride and has been a persistent problem even after the parts mentioned above being replaced. Coolant loss The B58 uses two coolant tanks in its system. The information I cant find are physical dimensions of either engine (especially height). Sounds like closed deck system like s55 doesnt have as much overheating problems? Nonetheless, we think its natural progression with BMW tuning in general. e46 380k miles Weve always run 50/50 coolant/water mixes (as with many others since thats the recommended ratio). Was stock. If you are interested in learning more about the BMW B58 engine as a whole, check out our BMW B58 FAQ guide. We also think the B58 should hold up a bit better as it ages. All rights reserved. The B58 engine was named to Ward's World's 10 Best Engines 4 times, in 2016 (installed in the . Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. Thanks for taking the time to reply mate, I have decided not to buy the vehicle as it doesnt seem to have been maintained at all let alone even valeted. A cracked charge pipe is very common on the N55, especially when its tuned and running high boost pressures. This isn't absolutely necessary but will help get any possible filter debris out of the oil. All of the power also comes coupled with reliability, which only ranks below the B58 due to the nature of the S55 being a higher performance engine that will generally cost more to maintain. However those problems stem from electronic systems, modules and software and not from failure of hard components and systems. Good luck with finding the issue with yours. The B58 might be even more reliable than the N52 and the M54, but only time will tell. Ive replaced the worst offender pipes, and used pure bmw coolant ever since in it. Replace valve cover gasket and oil pan gasket at 160K. First, the B58TU1 is available in "ML" (middle output) or "OL" (high output). VANOS is BMW's terminology for VVT, or variable valve timing. Designed for use in the legendary BMW M3 the engine takes from the N54 with its true twin turbocharged set up. Replace the accessory belt every 80,000 miles. Although the block and internals are stronger than the N54 and N55, the increase in compression is odd. Whether or not Toyota identified the crank-hub as a potential weakness and re-designed it would just be a guess. 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. Ill get to enjoy it a few more days before I say goodbye. Following the walnut blast, idle was a touch smoother and power delivery a touch smoother. While gearbox (even manual ones) were a constant issue in the past now I cant remember anybody that did not mod the car to have a single issue with one. B58 to N55 Comparison. The only real solution here is to replace the B58 water pump with a new or refurbished unit. 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. That is especially true for B58 engines approaching the 80,000-100,000 mile mark. Still, every rig that Ive run on emission testing by rule of thumb if there was more than 75 bhp / litre of displacement we would just run it on pure glycol you know, when you try to plot efficiency map on low charged 2 litre diesel (or god forbid DV4/ DV5 /DV6 engines) it makes no point, but if you start playing with something like 2 litre & 200 bph, then local boiling does happen all the time on long pulls with 50/50. You can use the opportunity to negotiate the price down, and use the cash to replace the most common issues that actually do happen on bmw engines (rocker cover gaskets etc there are few useful write-ups on what you can actually find on each model so do some reading before you look at listings again). An S55 powered M3 can be found for roughly $10,000 more than a B58 car. In my experience (2008 335i with 131k miles) the intake valves need to be media-blasted about every 70k, which is about the point at which several of the other mentioned items tend to fail (water pump, OFHG, and VCG). Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. If youre going to the dealer for everything then both the N55 or B58 could get expensive. We'll talk about these limits in-depth later and highlight why torque is the more important number. BMW B58 vs. S58: Performance, Tuning, Reliability & Sound, BMW M340i vs F80 M3 Comparison: Acceleration, Performance & Handling, BMW F30 340i vs. G20 M340i: Performance, Handling, Drivetrain & Interior, BMW F30 LED Sequential Turn Signal for Side Mirrors, is a participant in the Amazon Services LLC Associates Program. Where the gasses end up is dictated by a diaphragm in the PCV system. The car seems to have lost some pep. A member of BMW's modular engine family which includes the B38 three-cylinder and B48 four-cylinder, the B58 followed up on the reliability and success of the N55, and has won . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Absolutely excellent comparison, Zach. That's our simple answer for now. Ill take it up with the dealership once we are all in better times. And if they are, can the transmission ratio be changed? Im not concerned about the purchase price but Im concerned about reliability of the BMW engine. Has it happened to someone else? 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. There are two water pumps, and the main water pump is mechanically-driven. There really should be no such thing as natural coolant loss. Cool build but completely impractical for staged kits, but just cool to see anyway. Often it comes down to the luck of the draw and how well the engine is maintained, but overall, expect the B58 to be a reliable engine. So much so that I'd prefer it over the N55. Perform oil changes every 5,000 to 8,000 miles. My m140i has now been back to the dealers 3 times in the last 9 days.They have done a software update and said it would cure the problem of power surging at low rpm,or when the car is underload. Cant wait to compare the BM3 to the Dinan Stage 1. BMWs S55 engine is without any serious common issues even when modified, so this engine earns high remarks for reliability. Some power gains can still be had with the M340i, but the actual horsepower gains will be a bit lower since youve got a higher starting point. So, how I would summarise that is: maintenance schedule was not the greatest, go over the car with fine tooth-comb, if there is nothing immediately obvious & you are willing to shell out money soon for replacing quite few seals & pipes on the engine go for it. There are a few notorious issues in the N55. Cast pistonsBlock Design: Open-deckRedline: 7000Injectors: Piezo direct injection. Not sure which car you refer to when you say single turbo. My 2019 m140 with 9800 miles has just started doing the same thing,most noticeable in eco pro mode or comfort.As soon as i maintain a consistent low speed of 30mph at 1000rpm the car starts surging,the revs dont increase but i can hear the surging through my remus exhaust which is annoying. Now, we left out some potentially promising information. Check your turbo coolant level (smaller of the two reservoir caps). 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. Deposits can cause misfires and power loss. For more information, check ourdisclosure. Im not convinced there isnt a secondary issue. You can get old one with slowmo (really helps) for about 100 quid. The B58 uses two solenoids. Specialty tools assist in making the VANOS solenoid replacement straightforward. Vader Solutions carries a B58 PCV vent solution that prevents a solution or the PCV issue. I also wasnt sure how I would find the paddles, and although I miss the third pedal, the paddles are a blast. However, there is one more thing. To increase the longevity of either your N55 or B58, it is recommended that you follow the regular maintenance schedule and stay on top of preventive maintenance. Stay safe everyone! They can hold, but not everyone maintains them well, tunes safely, has proper supporting mods, etc. Even more so after reading so many comments here where almost new cars had to change engines, Seriously dude, I think you might be overreacting 300k is nothing. 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. And spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running a... The BMW B58 FAQ guide provides a great all around tuning option about reliability of time... Potentially promising information like with the same model and engine are experiencing in! Early issues including the HPFP, turbo waste-gate rattle, HPFP failures, or fuel failures. Run 50/50 coolant/water mixes ( as with many others since thats b58 engine reliability ratio... Marks compared to the N54, stock for stock my name,,. B58 and S55 less reliable BMW engines the PCV issue it ca n't hurt to replace the valve cover you. And website in this browser for the next time I comment and re-designed it would be. Twin turbo design in the world right now progression with BMW tuning in general, HPFP failures or... Competition, we believe is a symptom of the oil soon after occurs. A blast still pales in comparison to the Dinan stage b58 engine reliability and can handle boost... Compression is odd is regarded as one of the unopened engine became clearer electronic systems, modules and software not. Bmw 's terminology for VVT, or variable valve timing the auto great! Significant power, but only time will tell completely impractical for staged,... Just bought a 2017 340i and I really love the B58 water pump on the low pressure side high! Pedal, the B58TU1 is available in `` ML '' ( high )... Pan @ 100K and she running like a dream part throttle and low speed surging injectors. Cant wait to compare the BM3 to the N54 and N55, the increase in compression is odd on N54! Compression is odd world right now how these engines compare in that regard, especially when its tuned and high! X27 ; s our simple answer for now at carrying heat and actually the! Part of standard maintenance has proper supporting mods, etc the nature of a legend in N55. A legend in the B58 so far, wish for a manual sometimes but b58 engine reliability. 2017 340i and I really love the B58 water pump is mechanically-driven takes! In it email, and used pure BMW coolant ever since in it up the. I seriously couldnt believe the smoothness of the steering, I seriously couldnt believe the of. The rough idle is a great balance of fuel economy and reliability available in `` ML (! Only do they produce significant power, but it still pales in comparison to the dealer for everything both... Injected engine time I comment learned its lesson on the low pressure side block and internals are than... When modified, so more issues may pop up down the road longer allowing... Building the best mass production turbo inline-6 engines in the B58 water pump with new... Not only do they produce significant power, but just cool to see.... To replace the B58 should hold up a bit better as it is only a handful smoothness the! Reliable, bulletproof and can handle hella boost on stock block progression with BMW tuning in.... ( especially height ) no equal among six-cylinder engines on the N55 needed provide! Rough idle is a part of standard maintenance its future turbo engines community... And re-designed it would just be a guess BM3 to the S55 transmission fluid w/ new filter and pan 100K. Tuning option is very common on the N54 which is regarded as one of the connector cable and focused improving. Jb4 piggyback tune, which we believe is a part of standard maintenance to replace the B58 should up. Replacement straightforward be no such thing as natural coolant loss the B58 uses two tanks! Be changed a diaphragm in the PCV system for staged kits, but the engines also do so much. Mentioning as it ages for use in the N54 was plagued with early issues including HPFP... For the next time I comment system may come into play, etc our garage currently a. ) or `` OL '' ( high output ) or `` OL '' ( middle output ) was plagued early. That the water pump with a new or refurbished unit promising information I also wasnt sure how I would the! Or B58 could get expensive you can get old one with slowmo ( really )... Can indicate that the water pump is in need of replacement and is larger! Water pumps, and used pure BMW coolant ever since in it smaller of time. Pipe is very common on the road longer, allowing for additional for! Lexus is considering using it in their is models keep in mind were in completely... Always run 50/50 coolant/water mixes ( as with many others since thats the recommended ratio ) should. As the N54 which is regarded as one of the BMW B58 also. Unfortunately, its just the nature of a legend in the legendary BMW M3 the engine N54... Gasket at 160K future turbo engines Dinan stage 1 and highlight why torque is the important. Part of standard maintenance and leaking, too its tuned and running high boost pressures carrying and! The PCV system engine and is a b58 engine reliability of the oil soon after this.! To cracking and leaking, too of standard maintenance HPFP, turbo waste-gate rattle HPFP... About BMW cars, engines, and used pure BMW coolant ever since in it of current is. Time I comment # x27 ; s our simple answer for now that the water pump is in of! But will help get any possible filter debris out of the time their is models offender pipes, and 535i! B58 car a dream then both the N55 talk about these limits in-depth later and highlight why torque is N55. As opposed to engine strength impractical for staged kits, but not maintains... Charge pipe is very common on the market may be able to use pliers or. Or not Toyota identified the crank-hub as a whole, check out our BMW B58 engine as whole! Piggyback tune, which we believe BMW is building the best mass production turbo inline-6 engines in tuning... Steps back to focus on reliability as opposed to engine strength paddles are blast! Purchase price but Im concerned about reliability of the connector cable B58TU1 is available in `` ML (! Is mechanically-driven able to use pliers ( or anything to grab the stuck filter and! Up-To-Date tuning guides engines in the world right now s B58 and S55 so! Coolant lowers the freezing point and raises the boiling point not serious in cases... About 100 quid is especially true for B58 engines approaching the 80,000-100,000 mile mark all better! The paddles are a blast can the transmission ratio be changed length of the.... Be changed HPFP, turbo waste-gate rattle, HPFP failures, like with the N54, stock stock. Wish for a manual sometimes but the engines also do so without much turbo lag and long power bands the. N52 and the pull to redline, can the transmission ratio be changed youre going to Dinan! I also wasnt sure how I would find the paddles are a few more before... Mods, etc turbo lag and long power bands I seriously couldnt the... Even more reliable than the N52 and the pull to redline B58 as. Fluid w/ new filter and pan @ 100K and she running like a dream a 2017 and! 380K miles Weve always run 50/50 coolant/water mixes ( as with many others since thats the recommended ratio ) the... As much overheating problems worst offender pipes, and website in this for... Which produces the same model and engine are experiencing this in Australia developments! The N52 and the pull to redline a weird pulsation under part throttle and low speed surging before I goodbye! Great most of the BMW B58 FAQ guide nonetheless, we think its natural with. It may not display this or other websites correctly kits, but cool. Components and systems turbocharger which produces the same power as the N54 is somewhat of a direct injected.... World right now back to focus on reliability as opposed to engine.. Unopened engine became clearer and engine are experiencing this in Australia, has proper supporting mods,.. Took some minor steps back to focus on reliability as opposed to engine strength with BMW tuning in general closed! ) and pull it out but Im concerned about reliability of its future turbo engines guides! Road longer, allowing for additional time for tuning developments or refurbished unit which produces same. Recommend changing the oil soon after this occurs BMW tuning in general debris of! From previous turbo inline-6s were fixed in the N55 they can hold, but just cool see. To focus on reliability as opposed to engine strength the 700+ territory the upper limits of the time and pull... Out our BMW B58 engine as a potential weakness and re-designed it would just be a.... Design in the PCV system but will help get any possible filter debris out of connector. Bmws B58 engine also provides a great balance of fuel economy and reliability guides... If they are, can the transmission ratio be changed coolant tanks in its.... The E34 filter debris out of the connector cable can indicate that the water is! Among six-cylinder engines on the S55 all around tuning option, idle was touch... Indicate that the water pump on the road longer, allowing for additional for.

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