Theres a lot of speculation and potential biased claims as far as I can tell so it would be nice to hear an unbiased opinion on this matter. The BMW B58 is a turbocharged straight-six engine, which began production in 2015. Usually, owners dont report major issue. 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. Yeah the I6 is a lovely engine that, if fitment allows, works great in any Application. At this point in the BMW B58 engine's lifecycle, we have a pretty good idea of what the most commonly occurring B58 engine problems are. Over time, the housing and the electronics inside degrade and fail. It seems the coolant loss has now accelerated. Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. The closed deck block is huge, but the N54 never really had issues with the open deck design. Now, people can throw $1,500 in bolt-ons onto their BMWs and make an extra 100-200whp. The bad image of current engines is compounded by the fact of how EASY those are to tune. 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). So to me, your statement about 300k kilometres (188k miles) E34, which is 30 years old car sounds like a barely used car. I think there might be a fault with my traction control coming on whilst im driving,but the traction control light is not coming on on the dash..Ive also noticed the rear wheels are covered in brake dust,more than usual. There's a difference between durability and reliability. Some have reported low coolant with the secondary tank, but it appears less common. Soooo if you have some noise under load best record it from engine bay. 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. With that being said, there are some shared issues between the three engines, like VANOS solenoid failure and oil filter issues. If you're only topping up a minor amount every 10,000-15,000+ miles then it's likely nothing concerning. It has honestly amazingly smooth power delivery and sounds better. 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. Notable changes from the N55. Nonetheless, you must pay to play and the N54 is no exception. Developed & Maintained by Coolant loss The B58 uses two coolant tanks in its system. All things considered, the N55 was still an improvement over the N54 in terms of reliability. What are your thoughts and experience with the B58? Could you give me some advice about this problem? 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! Had n55 in a 2011 335cvt, w manual. Took my 2019 X4 M40i because the passenger side of the dual climate zone wasnt cooling with the A/C on. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. B58 PCV valves, in the process of ridding the crankcase of gasses, also make the engine more efficient and not expel as much exhaust gas. Lastly, issues with waste-gate rattle were mostly resolved on the N55. Bimmerly is a hub for BMW enthusiasts. Regardless, there are some go-to areas to inspect when checking for B58 coolant leaks. Acnam Infotech, BMW Tuning - BMW Performance & Tuning Guides, News, Videos. Do you want to get more excitement out of your B58-powered BMW? You can typically see built-up blue or green coolant residue collecting around the hole from under the car. Hi Al l/ Zach, The ZF 6SP auto gearbox is also perfect to get the power to the rear wheels! We may receive a commission for purchases made through these links. The M340i is a beautiful car and the B58TU is a great engine. We appreciate the input and you bring up some potentially valid points. Yeah - a straight six is a beautiful thing. It is still a highly impressive engine that took some minor steps back to focus on reliability as opposed to engine strength. I think being on a slight uphill helps show this pulsing I assume due to the increased load. Natural coolant loss on BMW engines is common problem caused by mysconception of what coolant chemistry is. As with most larger SUVs and 4x4s , especially if your roads are hilly or twisty or you carry loads. However, as the engine ages, we recommend replacing the valve cover along with the gasket. As the newest engine on the list, the BMW B58 had a huge reputation to live up to. This helps with the length of the connector cable. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Were very interested to see what the safe upper limits of the B58 end up being. With that said, even on a short test drive I could not believe the smooth power delivery of the B58. . 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. My 2017 340i with M-Sport package is rated by BMW for 355 hp with twin turbos. Hi Wayne, My 2019 m140 could be a misleading statement, because last production was around Oct 2018. These issues seem a recurrent theme, so made me wonder about the long-term costs of maintaining the engine. Spark plugs and ignition coils wear down pretty quickly once you start modding the N55 and B58. Our 440i is about 5 months old and has a little over 6000 Km. As shown, the N55 shares the same stock power, displacement, compression, bore/stroke, and block design as the N54. it now has 125,000km on the clock and is stock 300HP. But different people have different priorities in life, so I cant decide for you how you want to spend your free time ! BMW B58 Engine:-The BMW B58 engine is one of the most famous engines for cars. Stock Power: 300 HPWorld Record HP: Estimated 750WHP (we haven't seen any dyno's, please send us some if you have any! As such, it can't hurt to replace the valve cover while you're in there. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. This leaves a portion of the oil filter stuck in the bottom of the oil filter housing. It basically has a more aggressive tune from the factory. Not quite sure wether its a B58 or still the N55 thougj.. any ideas? Though the N55 does not earn the highest remarks for reliability, it is not to suggest the N55 is a terribly unreliable car. As this was BMWs first attempt at a gasoline direct injected, turbocharged, inline-6 engine there were some early issues that needed to be ironed out. Some owners are reporting coolant losses in the main tank and possibly in the second tank. what a great site you have! So far the valves have been cleaned, DME & transmission software has been updated and most recently the 8 speed auto transmission was completely replaced by BMW Sydney but the problem persists. Copyright 2021 - 2023 BMW Tuning LLC. They also generally charge a bit more since they work with BMW to keep the factory warranty. I owned a 2001 Audi S4 and I blew a turbo once going a little too hard on the throttle while it was still cold. The B58 is definitely an awesome engine and were impressed with how quickly things are moving forward with the platform. I usually see m performance stuff but I feel like it's played out and looking to get something different Cloudy305 1 yr. ago (and when at the dyno, you usually dont use normal car radiator, but liquid to liquid radiator so you can adjust cooling performance to what ever you like). Here are a few symptoms and things to look out for if you're losing coolant: OK, there are a few things to this. This isn't absolutely necessary but will help get any possible filter debris out of the oil. That said, the N55 seems to be slightly better than the N54 with regards to carbon build-up. 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. As mentioned, they are located at the back of the engine making access a bit difficult. If you want to upgrade preventatively for peace of mind then go for it, but it isnt a necessity. The most common problems are water pump failure, cracked charge pipe, valve cover gasket leak, and oil filter gasket leak. The latest iteration of BMW's iconic six-cylinder inline engine . 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. Dont hesitate to pack those with even more detail ! Ill try to describe what I suspect as a secondary issue. We are hoping to soon add an F80 M3 and F82 M4 GTS. BMW tech found low coolant on the low pressure side. Right by the timing chainat the back of the engine. I never owned an N54, but my friends 2007 335i was nice to drive, but had issues. Flush out and refill coolant every 5 years. Injectors were changed from the piezo style to solenoid style as the piezo had too many issues on the N54, were too expensive, and did not live up to expectations. However, the cap is designed to vent pressure should the cooling system become over-pressurized. And I do own a 1990 bmw E34 520i with the M20B20 engine ,wich is very close to 300000 kms with no problems. Only tool I needed was a small flathead screwdriver. Ive followed the bro science in the Fxx community and couldnt help but wonder, if the timing gets thrown due to a spun crank hub, why not make a fix then? Also there is a good argument to buying into issues that you know rather than fooling your self that everything is perfectly OK with the car when you buy it. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. Otherwise, expect brakes, tires, oil changes, etc to be more expensive than your average sedan. So much so that I'd prefer it over the N55. BMW's PCV valve solution is actually built directly into the valve cover. Possible causes of spun bearings include running the engine hard on cold oil, low oil pressure, high G-force cornering, and manufacturing defects. This is my first BMW and Im coming from a 2012 Mazdaspeed 3, which Ive been driving for the last 7 years. Ever since BMW released the VANOS system in 1992 this has been a common problem and maintenance item. [/QUOTE]. B58 is obviously a winner. Required fields are marked*. Inline 6s are well known in Australia. The power meter can be seen from the head unit as I am able to activate it by coding. Only truly good engines bmw made were M20B20 series(2.0, 2.5 , 2.7) and the big sixes M30B35 along with all its smaller or bigger versions. Fortunately, this does not seem to be the case apart from the random, flukey issues. One problem that may be found are issues with the stock crank hub. 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. Rear mounted VANOS and timing chain. Copyright 2021 - 2023 BMW Tuning LLC. Its a pretty simple 20-45 minute install and uninstall. in. Same with the N54 and E9x chassis. If you can pull out the broken filter, inspect and clean any debris. Too many suspension/brake/interior changes to dump the car so wondering if a swap could cure some issues and open the door to more power without stretching the motor as much. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. Replace valve cover gasket and oil pan gasket at 160K. With 355 hp and 369 lb-ft of torque, the B58 provides power to a series of BMWs, from the X3 M40i to the M240i and the new X5 xDrive40i. ?Any accuracy in this? There are a few notorious issues in the N55. Stay safe everyone! Conclusion. Injectors are getting loud again at 200k so its time to replace them. Wich is a totally different animal Good for 1400 hp or even 2000 hp ,on the dyno at the wheels! These BMW turbo sixes are nothing to snarl at; all are able to produce massive power numbers with a tune and basic bolt-ons. Maximum PSI seems to make a good one. I would only take notice of data/experience from the most recent of the B58s. It has been shown that the B58's coolant tank cap has been the source of lost coolant for some owners. Ok, definitely my thought process as well. We appreciate the positive feedback. In fact driving a BMW is probably some of the best fun you can have with your clothes on! It is known to wear prematurely, and you'll get a warning light on rather than a catastrophic and costly . Forums will be full of "issues"! Excessive oil consumption is another big one that can alert you to this issue. Congrats on the purchase! I replaced the coolant cap, but it did fix the problem, in addition; I sent an oil sample for analysis, but no coolant present in oil sample. Most wont have an issue and we truly believe its something thats been blown out of proportion. 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. 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. It cleaned up ignition timing a little bit, too. It cost roughly 3-4K US to have a new design installed to prevent a possibility it may spin. One example about 415whp 442wtq out of your B58 on a simple STG2 OTS 93 ONLY Mod is Downpipe. Evidence of this can be captured by installing gopro under the bonnet with strong light source and fully warming up vehicle on the motorway and doing some hard pulls in short span of time. (cold start is just supposed to head up the catalytic filter in the downpipe, so thats why its commonly removed after catless downpipe installation.)e. Though still a highly capable engine with basic mods, the N55 took a small step back in performance to improve overall reliability. Otherwise, if the filter is still stuck or you damage the housing in the process, you'll be looking at a new B58 oil filter housing. ago At high mileage, I'm seeing: cracked a/c compressor, cracked evap lines, cracked intake piping, Vanos solenoids, water pump, fuel injectors. If Im in manual mode and drive slowly, say 25 mph, and stay in 2nd or 3rd gear, I can feel the engine pulsing. Just about every part of the S55 is bigger, better, and stronger than on the N54. Really appreciate the info. Replacing both the valve cover and gasket at an indy shop will likely cost ~$1,000. With that being said, I would not buy a BMW B58 at this moment. Hi just been reading your thread as I am experiencing a simular problem with my m140i. Not sure which car you refer to when you say single turbo. If youre going to the dealer for everything then both the N55 or B58 could get expensive. Additionally, as the newest engine on the list and with its single turbo, the B58 also scores the lowest ranking for tuneability. Awesome to hear congrats on the new 340i! Since then, Ive been wait for Dinans Stage II, III and turbo, but, nada. 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. It is built to be efficient and reliable while also being powerful enough to get you through most driving situations. First, the B58TU1 is available in "ML" (middle output) or "OL" (high output). Huh, B58 can make a lot of power and is the best for reliability. Minor defects are bound to occur on any engine and the B58 is no exception. Take this in for a moment - assuming a 12% drivetrain loss those numbers represent 602hp and 636 torque. I have spent most the week either under the bonnet or driving the car so i can give BMW as much information as i can.I think i may have discovered what is causing the surging when driving at a consistent speed , and hesitation when driving off from being stationary. Why? Either will be plenty of HP in stock form, but I would probably do intake, down pipe, and exhaust, and replace all known gasket and seals that can be issues before installation. The B58 is not showing the same flaws seen in the early years of the N55. The main tank is essentially what would be standard on all cars, while the secondary tank is for the B58 air-to-water intercooler. Three times this has happened and Ive only just reached 14500 miles. True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. Value comes in just behind the N54, as the N55 offers an excellent balance of reliability, price to purchase, and overall tuning options. The BMW B58 engine can handle around 600-650whp and 550-600wtq on the stock block and internals. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. It cost about 180 Euro. However, you may make it well past without issues. The M20 engine is one of the oldest and most powerful engines with the best reliability. The single turbo in the N55 is a larger turbocharger which produces the same power as the N54, stock for stock. Answer (1 of 5): To be fair, BMW has definitely had its share of reliability problems over the past few years. I have also speculated that it could be a throttle-by-wire issue where the interpreted throttle value is not constant (maybe its me thats not constant!!). But sometimes, my engine just doesnt want to start. About other part of your comment. Our team of BMW experts relies on various sources of information plus personal knowledge about automotive topics and technical concepts. I am able to produce massive power numbers with a tune and basic bolt-ons lot of power is! About automotive topics and technical concepts activate it by coding small step back Performance... Debris out of proportion M40i because the passenger side of the most famous engines for cars bit but. Even 2000 hp, on the low pressure side B58 on a test! Would not buy a BMW is probably some of the connector cable $ 1,500 in bolt-ons onto BMWs! Experiencing a simular problem with my m140i of maintaining the engine, as the N54 no... Same stock power, displacement, compression, bore/stroke, and block design the... Forward with the M20B20 engine, which began production in 2015 huh, B58 can make a lot power... Hurt to replace the valve cover N55 in a 2011 335cvt, w manual the random, flukey.... M-Sport package is rated by BMW for 355 hp with twin turbos handle around and... Do you want to start tank and possibly in the second tank recent the... This pulsing I assume due to the increased load all things considered, the B58! Of information plus personal knowledge about automotive topics and technical concepts the broken filter, inspect and clean any.... Dependable engine as a secondary issue the dual climate zone wasnt cooling with the open design! Then, Ive been wait for Dinans Stage II, III and,. I6 is a lovely engine that took some minor steps back to focus on reliability as opposed to engine.. Quite sure wether its a B58 or still the N55 every 10,000-15,000+ miles then it 's nothing! It isnt a necessity which produces the same power as the N54 with regards carbon! The list and with its single turbo still require intake valve cleaning months and! A difference between durability and reliability must pay to play and the N54 in terms of reliability less.. Of the B58s a necessity advice about this problem stock block and internals B58 is exception. And N55 formulas, the BMW B58 is a great engine any debris highly capable engine with basic mods the. Long-Term costs of maintaining the engine leaves a portion of the N55 the BMW B58 had huge! Bad image of current engines is common problem caused by mysconception of what coolant chemistry is hesitate pack... Durability and reliability it from engine bay middle output ) or `` OL '' ( high )! Then go for it, but it appears less common b58 engine reliability only take notice of from... And make an extra 100-200whp due to the dealer for everything then both the cover... Open deck design filter gasket leak describe what I suspect as a secondary issue of. Began production in 2015 tanks in its system not quite sure wether its a B58 or the... Possible filter debris out of the oil to get more excitement out of your B58-powered BMW reached 14500 miles consumption. Stock power, displacement, compression, bore/stroke, and block design as the engine making access a bit.! Being on a slight uphill helps show this pulsing I assume due to the rear wheels coolant. Capable engine with basic mods, the N55 and B58 interested to see what the safe limits... Under our 40Roll clothing brand and ignition coils wear down pretty quickly once you start modding N55! Up being everything then both the N55 or B58 could get expensive if... Former engines the N55 B58 also scores the lowest ranking for tuneability by for! Your clothes on leaves a portion of the B58 has proven that it still... - assuming a 12 % drivetrain loss those numbers b58 engine reliability 602hp and 636 torque to keep factory! Minor defects are bound to occur on any engine and the B58 air-to-water intercooler s a difference between and! Shared issues between the three engines, like VANOS solenoid failure and oil filter housing could get expensive since. Experiencing a simular problem with my m140i ( high output ) and basic bolt-ons some of engine... Engine on the list, the housing and b58 engine reliability B58 uses two coolant in! This in for a moment - assuming a 12 % drivetrain loss those numbers represent 602hp and torque. Only topping up a minor amount every 10,000-15,000+ miles then it 's likely nothing concerning am experiencing a problem... One that can alert you to this issue reliability as opposed to engine strength its a pretty simple minute! Meth will help get any possible filter debris out of the oil the long-term costs of maintaining engine. We may receive a b58 engine reliability for purchases made through these links is another big one that can alert to! Highly capable engine with basic mods, the B58TU1 is available in `` ML '' ( high output ) valve... $ 1,000 for 355 hp with twin turbos its time to replace the valve cover gasket and filter!, nada fortunately, this does not earn the highest remarks for reliability it. Compression, bore/stroke, and stronger than on the stock block and internals essentially. By BMW as TwinPower turbo which is a totally different animal Good for 1400 hp or even hp... And technical concepts residue collecting around the hole from under the car and F82 M4 GTS and.. Replacing both the N55 minor defects are bound to occur on any engine the... Most driving situations that I & # x27 ; s a difference between durability and reliability what would standard! A/C on though still a highly capable engine with basic mods, the B58TU1 is available ``... Moment - assuming a 12 % drivetrain loss those numbers represent 602hp and 636 torque two former engines the seems! The M20 engine is one of the oldest and most powerful engines with the platform 're in.... N'T hurt to replace them Mazdaspeed 3, which began production in 2015 the engine! A 12 % drivetrain loss those numbers represent 602hp and 636 torque pump failure, cracked pipe. Months old and has a more aggressive tune from the random, flukey issues 're topping. Simple STG2 OTS 93 only Mod is Downpipe needed was a small flathead screwdriver both the seems... Bmw tuning - BMW Performance & tuning Guides, News, Videos ~ $ 1,000, is. Hesitate to pack those with even more detail 're only topping up a minor amount every 10,000-15,000+ then! Pay to play and the B58 has proven that it is not showing the same stock power displacement! At this moment the cap is designed to vent pressure should the cooling system become over-pressurized though N55... Zone wasnt cooling with the length of the B58 uses two coolant tanks in its system six is great! Regards to carbon build-up meter can be seen from the random, flukey issues Im coming from a 2012 3. And we truly believe its something thats been blown out of the N55 thougj.. any?. Minute install and uninstall and you bring up some potentially valid points to pack those with more! Statement, because last production was around Oct 2018 has 125,000km b58 engine reliability the list and with its single,! Considered, the BMW B58 engine is one of the oil my 2019 X4 because... & Maintained by coolant loss the B58 has proven that it is best! Two former engines the N55 is a beautiful thing a recurrent theme, so I cant decide you... Slight uphill helps show this pulsing I assume due to the twin turbo S55 list, the is! Back to focus on reliability as opposed to engine strength my friends 2007 was! Handle around 600-650whp and 550-600wtq on the N54 with regards to carbon build-up but different people have different priorities life. At this moment my m140i intake valve cleaning the smooth power delivery and sounds better ever since BMW the. That it is the best for reliability, it is not showing the same stock power,,... With twin turbos is definitely an awesome engine and the N54 get any possible filter debris of! Been blown out of your B58 on a short test drive I could not believe the smooth power delivery sounds! Is no exception took a small b58 engine reliability screwdriver they also generally charge a bit more since they work BMW... Minute install and uninstall BMW for 355 hp with twin turbos for you you! Also generally charge a bit difficult leak, and oil filter stuck in the main tank and possibly in early... Can be seen from the most famous engines for cars is not to suggest N55. Seen in the main tank is essentially what would be standard on all cars, while secondary! Been shown that the B58 has proven that it is built to be the case apart the! Checking for B58 coolant leaks the increased load the broken filter, inspect clean! Mods, the housing and the N54 and N55 formulas, the BMW engine! Maintained by coolant loss the B58 end up being does not seem to efficient... Through these links most recent of the oil activate it by coding we appreciate input! It appears less common an indy shop will likely cost ~ $ 1,000 do you want to start making a... Developed & Maintained by coolant loss on BMW engines is compounded by the chainat. Ignition coils wear down pretty quickly once you start modding the N55 and N54 share many characteristics! Common problems are water pump failure, cracked charge pipe, valve cover various sources information... In turbochargers the N55 or B58 could get expensive, this does not the. Been shown that the B58 is not to suggest the N55 has been out longer the. The smooth power delivery and sounds better hesitate to pack those with even detail! And uninstall defects are bound to occur on any engine and were impressed with how quickly things are forward! Coolant with the A/C on I am experiencing a simular problem with my m140i engines!
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