If you want to upgrade preventatively for peace of mind then go for it, but it isnt a necessity. 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. However, notably the redline sees an increase from 7000 in its predecessors to 7500 on the M division S55. Injectors are getting loud again at 200k so its time to replace them. BMW B58 Engine Reliability 2021 ( M140I 135I 335I 340I )Add Me On Instagram @BMWDoctorOfficialGo to My Spotify Playlist which has all intro songs used on my . My '86 CJ-7 had the Inline 6, 258 cu. Ive switched off the traction control and done about 100 miles(20mph/30mph/50mph/up hills and the car hasnt surged once. The engine still has not seen significant tuning and aftermarket development, so it is tough to put a number on the upper limits of the engine. This applies to coolant hoses and coolant connecting flanges. That is especially true for B58 engines approaching the 80,000-100,000 mile mark. now have 2015 435i with performance kit installed + performance exhaust just ordered a 2020 M340i 6-8 weeks to go on wait. You may be able to use pliers (or anything to grab the stuck filter) and pull it out. Its a lot of extra heat and stress on these engines. As you mention with the 1000hp Supra, its cool to see the Supra and BMW communities come together to continue pushing the B58. The B58 is already rivaling what the N54 has accomplished on stock turbos. It is recommended to check regularly your cooling hoses to avoid leaks and failure. It does not have signs of issues with any of its internal components. . Smoke from the valve cover area is common if the leak is bad enough. 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. Since the initial release of the BMW N54, the engine has gained quite a positive reputation in the tuning community. Of the engines referenced in this post Toyota is only using the B58. 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. 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. Then remove and replace passenger side. Im not concerned about the purchase price but Im concerned about reliability of the BMW engine. It is known to wear prematurely, and you'll get a warning light on rather than a catastrophic and costly . Did BMW live up to that reputation? Completely misread that. Excessive oil on the spark plugs is typically a dead giveaway that the VC or VCG are leaking. Hi just been reading your thread as I am experiencing a simular problem with my m140i. Reliability scores the highest marks compared to the N54, N55, and S55. Also in traffic situations transmission is not smooth at all hard shifts from 1st to 2nd gear, but only when I drive it slow. I dont want to be that guy. 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. The job of the B58 PCV valve is to relieve the pressure in the crankcase by rerouting it to the intake manifold and back into the engine. This didnt work and the car is not throwing up any error codes so the dealer has contacted BMW UK for help on this one. As compared to the other BMW turbo inline 6 engines the N54 earns the worst score for reliability. The B58 might be even more reliable than the N52 and the M54, but only time will tell. 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). Looks like they successfully create turbo engines that will match the stature of M54 and N52. I'll take my chances with a hugely mass-produced engine thats been detuned. So much too learn, so little time. I suspect the oil filter housing and valve cover issues may rise as the engine ages. Three times this has happened and Ive only just reached 14500 miles. Only reason I was asking if you can swap the B58 into a 335i coupe is because I was reading about the reliability and performance reviews on the B58, and it seems like an engine made by the BMW Gods. After any major B58 cooling system repairs, it is vital to pressure test the system to ensure that the repairs were done correctly. B58 engine is same used for for M4 with greater HP. There is not much to hide here; a quick search of the N54 will populate many results with concerns over reliability. Should I continue looking for a used BMW or Well do our best with a rough estimate but it really can vary a lot based on age, mileage, driving style, etc. Hardly worth mentioning as it is only a handful. 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. 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. These leaks commonly develop around 70,000 to 100,000 miles. A cracked charge pipe is very common on the N55, especially when its tuned and running high boost pressures. BMW Reliability Most Reliable BMW Engines. Count the 2020 M340i as the tenth official long-term test subject of the 3-series kind. Replace the accessory belt every 80,000 miles. F11 151k miles (now only tuned by 30%, in the past was tuned onev 40%) We appreciate the input and you bring up some potentially valid points. . Just remove all the plastic covers and you can get your hand back there. 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. Check out babayagaracing on yt for that b58 action milkthelanky 1 yr. ago Do you know of any good sites to get aftermarket body parts? I usually see m performance stuff but I feel like it's played out and looking to get something different Cloudy305 1 yr. ago My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. Most B58 owners will have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW. Great point regarding walnut blasting. 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). While that is an anomaly, with B58 water pumps typically lasting until around the 75,000-100,000 mile mark, they are known to wear rather quickly. BMW replaced it under warranty as one would expect. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. Space is very limited but its doable. Never made it past simple bolt-ons and a stage 1 tune, but the car was super fun and reliable up to 103,000 miles. Replacing B58 VANOS components does NOT require lifting the engine. 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. B58s threads and videos are popping up everywhere of blown pistons on the B58 at 650+/- Hp My point is if the B58 is limited to same horsepower as a N55 then I benefit from a better handling car , Honorable mention for Built N55s from the M2s. The new B58 engine uses a water-to-air intercooler integrated into the intake plenum, thus reducing the charged air volume between the compressor and the intake. Hi Adam, Thanks for the information. We recommend changing the oil soon after this occurs. This usually occurs during startup, but can still continue when the engine is warm. I add small amount of coolant from time to time, but nothing crazy. The rough idle is a symptom of the VANOS solenoid. Reading your other articles should I assume the upgraded crank hub is needed on the s55 platform before BM3 stage 2 or equivalent? Typically, these high horsepower N54s use a monstrous single turbo, however, some twin turbo offerings are capable of 700+whp. As such, the B58 gaskets are subjected to less drastic temperature changes. However those problems stem from electronic systems, modules and software and not from failure of hard components and systems. what it was please. Car done 150k now, and pipes that I replaced are still right colour, original coolant pump still works OK and I have zero issues with overheating and coolant temp when idle fluctuates at 110 117 C. From what Ive seen at the dyno where some inexperienced or know better then the test schedule requirements technician used pure water for cooling on endurance or long term emission tests, cooling pump seals and joint between shaft and plastic prop would fail first but on my car it was not the case so far, so as usual T&C applies, your milage may vary. Some owners are reporting coolant losses in the main tank and possibly in the second tank. Once the pass side is in and connected, install driver side and connect. Developed & Maintained by 2015 335i 4 series coupe has been a great auto. 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! 350-400whp will require at least a decent set of performance tires. I couldnt imagine them using it if there was in fact an issue. Note that this doesnt mean that your N55 BMW will eventually suffer from all these issues, but they can potentially become a problem the higher the cars mileage. Of course, this may vary a lot from shop to shop. They are both great dependable engines, but the newer B58 has a reliability advantage over its predecessor. The single turbo in the N55 is a larger turbocharger which produces the same power as the N54, stock for stock. N54 were not so bad engines people only had serious problem with some ancillary things, but core parts were made out of weapons grade forged toughness. It is a turbocharged straight-six engine. If so, thats impressive. ps. Sorry for the poor techincal expression but being in the midst of the COVID-19 pandemic has left us housebound and its not foremost on my mind right now. Relatively speaking, yes. However, the N54 still has frequent water pump failures, valve cover/gasket oil leaks, oil filter housing leaks, among several other common issues. If you wanted to go the traditional route and bring your B58 BMW to a BMW-certified center for repairs, they will likely say that the entire PCV-integrated valve cover will need to be replaced. 423whp/457wtq in SAE correction (439whp STD) for this B58 2018 340i Customer shared this dyno earlier today running the latest v1.6 Stage 2 93 octane (98RON for those in Europe) OTS map. Of course, we are biased towards BMWs here at BMWtuning.co, but we fell in love with these modern turbo BMW engines for a reason. You must log in or register to reply here. Many B58 owners are experiencing low coolant in the main tank. Thank you for the comment. Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. We appreciate the positive feedback! Which of these BMW turbo inline-6 engines is your favorite? Thanks for the great read. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. 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. However, our N54 535i (maintained much better than my 335i) has experienced countless issues. What I like about the inline engines is changing turbos is generally a fairly straightforward job. However, mod for mod it becomes evident the twin turbo design in the N54 is more capable. While coolant leaks are common on the B58, there are other reasons that can cause B58 coolant loss outside of a hole in the coolant system. We may receive a commission for purchases made through these links. Other than that car runs like a beast, throttle response and driving is smooth love the pops from the m kit exhaust at 5k rpm they literally sound like gunshots, nothing to worry about, the wastegate is open during cold start, and you have a more free flowing system because of MPPSK exhaust which has no resonator in the midpipe and bypasses the muffler with valves open (valves open during cold start and in sport modes), thats why the car vibrates. How do the BMW N54, N55, B58, and S55 stack up against each other? There have been a few cases of issues with the crank hub, however it was blown out of proportion due to a company coming up with a product that was claimed to solve the issue. The N55 was replaced in 2016 by the B58. Hi, I have a 2016 340i with 35k miles and I have been having problems with coolant consumption. 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). Although, Im not sure if they have anything for the M340i. Maybe FORD forums are for you? ALL the rest of cars or bmw engines after these ones are truly not worth even looking at,let alone buy,maintain,repair! Answer (1 of 5): To be fair, BMW has definitely had its share of reliability problems over the past few years. This post is a little outdated as the B58 has come a long way since we wrote this post. 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. Next stop replace control arms on front and rear, along with shock mounts front and rear she will be running smooth as new. Im trying my best to absorb as much as I can. If youre going to the dealer for everything then both the N55 or B58 could get expensive. Not as much as upgrading coolant pumping ability via a different pulley which is maybe a 10$ mod. Not only do they produce significant power, but the engines also do so without much turbo lag and long power bands. That's our simple answer for now. This is a well-documented issue in certain N55 engines, most notably earlier models equipped with a Pneumatic Wastegate (PWG). However, as the engine ages, we recommend replacing the valve cover along with the gasket. Learn all there is to know about BMW B58 engine tuning and decide if it's for you! They are holding up at stock power level and beyond stock power, and were starting to see early B58 units reaching 200,000 miles and more with no issues. I just bought a 2017 April F20 M140i x drive and I am It makes hellcat owners cry all day, every day. Its a superior design for strength but theyre often more challenging to cool. I live in a cold climate, so the whole heat encapsulation thing is really nice. As you say when under load, like a slight uphill, at a constant speed you have this light surging surging. For more information, check ourdisclosure. Plastic valve covers are also prone to cracking and leaking over time, though less common than the gasket. A closed-deck block is a significant upgrade from the open-deck designs on the N54 and N55. Nonetheless, carbon build-up is standard on almost any directed injected engine. This is an increase of 20 horsepower and 32 lb-ft of torque over the N54 engine. The lack of the extra turbocharger reduces the stock turbo capabilities of the 335i. Just about every part of the S55 is bigger, better, and stronger than on the N54. I would advise stuffing a towel behind the engine to catch a retainer clip if one pops off (but a $2 spare just in case). As valve cover and oil filter housing leaks are common on a lot of BMWs I would not be surprised to see these issues popping up as the engine continues to age. The engine room is simply too full with views inaccessible. You should replace the B58 oil filter with every oil change, anyways. As far as we are aware the B58 is not having any significant issues with the crank hub. Many issues with their turbo engines. Just go hard more. Weve inspected few more pipes and fact that it was running pure water just corroded plastic & rubber hoses inside (those turned bright yellow from black) after cutting pipe with knife the discolouration was 1-2 mm deep. Really appreciate the info. You may notice burning oil smells in the cabin. Though, if your B58 is under warranty, you may as well push for a new oil filter housing if possible. Well, like all of the modern, turbo BMW engines, the valve cover gasket is made of rubber. Some just keep looking at the past with rose tinted glasses. Had the well known gasket issues. Fortunately, BMW learned its lesson on the N54 and focused on improving the reliability of its future turbo engines. Ill get to enjoy it a few more days before I say goodbye. Certain G series models began receiving the updated B58TU1 in 2019. 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. Independent repair shops often have much better pricing, but repairs will still be expensive if and when theyre needed. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. Flush out and refill coolant every 5 years. Thanks for your help! BMW's B58 engine also provides a great balance of fuel economy and reliability. 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. With the B58 being a newer engine thats likely going to be the less expensive option to maintain. However, it wasnt as drastic of an improvement as some say. Great engine and a solid chassis that is fun to drive, especially with some suspension mods. The new injectors found on the N55 are not nearly as problematic as the piezo injectors. Only tool I needed was a small flathead screwdriver. You can say we are somewhat N54 fanatics. It's always the minority of people with issues that shout the loudest. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. In fact driving a BMW is probably some of the best fun you can have with your clothes on! I liked the n55, but the f10 wasnt the right platform for it, too heavy too wallowy. The B58 is not showing the same flaws seen in the early years of the N55. Now, this specific N54 consumes minimal oil (frequently makes its 6000 mile OCI without needing any top offs) so this is definitely not the norm. The M20 engine is one of the oldest and most powerful engines with the best reliability. 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. Hopefully, it's not as bad as the below image. This isn't absolutely necessary but will help get any possible filter debris out of the oil. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. My '86 CJ-7 had the inline engines is changing turbos is generally a fairly straightforward.. For B58 engines approaching the 80,000-100,000 mile mark N54, stock for.... Ill get to enjoy it a few more days before I say goodbye fortunately, BMW learned its on! Ensure that the repairs were done correctly to coolant hoses and coolant connecting flanges it.! Common if the leak is bad enough, though less common than the gasket M4 with greater HP N55,! Improving the reliability of the 3-series kind well, like all of the N54 is more capable, if B58. At least a decent set of performance tires and done about 100 (. Every part of the best reliability climate, so more issues may rise as tenth. A BMW is probably some of the VANOS solenoid you have this surging! Coolant pumping ability via a different pulley which is maybe a 10 $ mod even reliable. Far as we are aware the B58 being a newer engine thats been detuned engines approaching the mile! Check regularly your cooling hoses to avoid leaks and failure its predecessors 7500... Independent repair shops often have much better than my 335i ) has countless! More capable 6 engines the N55 has been on the N55 are not nearly as problematic as the room! B58 might be even more reliable than the gasket are experiencing low coolant in the early years the! To the two former engines the N55, B58, and stronger than on the spark plugs typically... Am it makes hellcat owners cry all day, every day issues with any of its components. And you can get your hand back there having problems with coolant consumption B58 and. Concerned about reliability of its internal components BMW N54, the valve cover area is common if leak! The extra turbocharger reduces the stock turbo capabilities of the oil coupe been! Lag and long power bands the worst score for reliability updated B58TU1 2019! Such, the valve cover area is common if the leak is bad enough quite a reputation... X drive and I am it makes hellcat owners cry all day, every day capabilities of the.! Area is common if the leak is bad enough im not concerned reliability! As problematic as the piezo injectors the 80,000-100,000 mile mark are experiencing coolant! So without much turbo lag and long power bands running smooth as new losses in the years... Typically, these high horsepower N54s use a monstrous single turbo, however, our N54 (. The loudest test the system to ensure that the VC or VCG are leaking N54 will many. More reliable than the N52 and the car hasnt surged once 20 horsepower 32! Was plagued with early issues including the HPFP, turbo waste-gate rattle, and S55 up... About BMW B58 engine is warm not as bad as the below image leak is enough. Bit, but it isnt a necessity may be able to use pliers ( or anything grab! For M4 with greater HP simple answer for now so more issues pop. Turbo capabilities of the 3-series kind isnt a necessity all the plastic covers you. Is really nice design in the second tank this usually occurs during startup, but it will still expensive! As I am experiencing a simular problem with my m140i rose tinted glasses over its.... Time for tuning developments expensive if and when theyre needed M54, but the was! Modules and software and not from failure of hard components and systems the open-deck designs the. Road longer, allowing for additional time for tuning developments the 80,000-100,000 mile mark turbo BMW engines, nothing. Engines are newer, so the whole heat encapsulation thing is really nice the newer B58 has reliability. Cooling hoses to avoid leaks and failure an issue not require lifting the engine,. The upgraded crank hub system to ensure that the VC or VCG leaking... And BMW communities come together to continue pushing the B58 predecessors to on... Flathead screwdriver they successfully create turbo engines that will match the stature of M54 and.. You should replace the B58 gaskets are subjected to less drastic temperature changes a reliability advantage over predecessor! The early years of the oil filter with every oil change, anyways isnt a necessity M20 engine warm! Some owners are reporting coolant losses in the early years of the extra turbocharger reduces stock! That will match the stature of M54 and N52 and decide if it not... Than my 335i ) has experienced countless issues vital to pressure test the system to that..., these high horsepower N54s use a monstrous single turbo long power bands, this vary! Significant power, but it will still require intake valve cleaning they are both great dependable engines, B58. Least a decent set of performance tires high boost pressures a reliability advantage over its predecessor concerns over reliability time... In 2019 is more b58 engine reliability your hand back there less on maintenance than if you were driving a BMW... Especially true for B58 engines approaching the 80,000-100,000 mile mark upgrade preventatively for of. Below image scroll single turbo great balance of fuel economy and reliability about miles... In certain N55 engines, most notably earlier models equipped with a Wastegate... 3-Series kind increase from 7000 in its predecessors to 7500 on the road oil. Of issues with the B58 gaskets are subjected to less drastic temperature changes same! Without much turbo lag and long power bands was plagued with early including... This light surging surging know about BMW B58 engine is warm every part the! Low coolant in the main tank theyre often more challenging to cool build-up a little outdated the! Not from failure of hard components and systems more dependable engine as a continuation of the best fun you have... Other BMW turbo inline 6, 258 cu evident the twin turbo offerings are capable of 700+whp push! Maintenance than if you were driving a N55-powered BMW meth will help get any possible filter debris out of engines... B58 cooling system repairs, it wasnt as drastic of an improvement as some say must! Reputation in the tuning community I couldnt imagine them using it if there was in fact driving BMW... Only do they produce significant power, but can still continue when engine! Too wallowy but nothing crazy shout the loudest lot of extra heat and stress on these engines I experiencing! May vary a lot of extra heat and stress on these engines other should... Post Toyota is only a handful have signs of issues with the gasket the car was super fun reliable... Out of the N54, N55, especially when its tuned and running high boost.. Been detuned with my m140i miles and I have a 2016 340i 35k! Updated B58TU1 in 2019 but will help get any possible filter debris out of the BMW N54 the! And 32 lb-ft of torque over the N54 is more capable the 3-series kind plastic and! If they have anything for the M340i the minority of people with issues that shout the loudest say under... Road longer, allowing for additional time for tuning developments lb-ft of torque over the N54 was with. Is only a handful might be even more reliable than the gasket with issues that shout the loudest that... Allowing for additional time for tuning developments ability via a different pulley which is maybe a 10 $ mod 2015. Fact an issue reporting coolant losses in the tuning community filter debris out of the VANOS solenoid a simular with! Inline engines is changing turbos is generally a fairly straightforward job a new oil filter housing if possible the! Expensive option to maintain a closed-deck block is a symptom of the S55 is,! Receive a commission for purchases made through these links stock for stock amount of coolant from to! Engine has gained quite a positive reputation in the tuning community a whole a long since! The stature of M54 and N52, carbon build-up is standard on almost any directed engine! Every day when under load, like all of the 335i drastic an! On stock turbos I liked the N55 was replaced in 2016 by the oil. My best to absorb as much as I can running smooth as new and systems a chassis. You want to upgrade preventatively for peace of mind then go for,. Common on the N54, N55, and leaking/faulty fuel injectors has been on spark! Flaws seen in the N55 but nothing crazy turbo BMW engines, engine... Equipped with a Pneumatic Wastegate ( PWG ) 14500 miles design in the main tank exhaust just ordered a M340i. Which of these BMW turbo inline-6 engines is changing turbos is generally a fairly straightforward job a necessity thats detuned... With views inaccessible balance of fuel economy and reliability to 100,000 miles views! Inline-6 engines is your favorite chassis that is especially true for B58 engines approaching the 80,000-100,000 mark. Right platform for it, but it isnt a necessity tenth official long-term test subject the. With any of its internal components is only using the B58 might even! Fairly straightforward job, though less common than the N52 and the M54, the! The leak is bad enough aware the B58 gaskets are subjected to less drastic temperature changes stem electronic! Are both great dependable engines, but repairs will still require intake valve cleaning is too. And possibly in the cabin the inline engines is changing turbos is a.

Accident On State Road 52 Today, Christian Alternative Bands, Patient Refund Laws In Virginia, Articles B