I have same issue with slow coolant level decrease, Ill try to install a new cap like suggested. Im not sure when we can have our cars looked at but it would be interesting to know how you get on when the time comes. Haha your last comment seems to be spot on! The M20 engine is one of the oldest and most powerful engines with the best reliability. If Im in manual mode and drive slowly, say 25 mph, and stay in 2nd or 3rd gear, I can feel the engine pulsing. Hi mate,thanks for your reply. Ultimately its up to you ( sorry for being blunt, but keep reading there is a point to that ;D ), brand new car = least issue & most money, old ragged car = cheapest & most issues. Fortunately, there is not much more to discuss with the BMW B58 reliability. Ill get to enjoy it a few more days before I say goodbye. Has it happened to someone else? The N54 is an awesome power plant and i have replaced the rocker cover, gasket, oil pump gasket and one fuel injector. However, the initial value in purchasing the N54 may diminish due to potential reliability issues. I never owned an N54, but my friends 2007 335i was nice to drive, but had issues. Reliability + performance. I also wasnt sure how I would find the paddles, and although I miss the third pedal, the paddles are a blast. Changed injectors, spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running like a dream. However, this may not be necessary in most cases. A ballpark is really tough cause you could go cheap routes on tires, brakes, etc and only drive the car 4,000 miles a year. Did BMW live up to that reputation? Repair shop for all work $1000 to $2,000 a year, Informative article, however Im surprised that carbon buildup on the intake valves wasnt mentioned, at least in the context of the N54. With the extensive list of common problems, it is fair to say the BMW N54 is not cheap to own or maintain. Im (sort of) confident they will eventually find the source of the problem but until they do its very frustrating. These issues seem a recurrent theme, so made me wonder about the long-term costs of maintaining the engine. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. That is especially true for B58 engines approaching the 80,000-100,000 mile mark. Reliability scores the highest marks compared to the N54, N55, and S55. Lets look at both engines in detail to find out why the N55 is not as reliable as the new B58. However, it can be hard to catch with this symptom alone, as the B58 also has other oil consumption issues. f34 130k miles (tuned about 30% up only intercooler upgraded) This applies to coolant hoses and coolant connecting flanges. But different people have different priorities in life, so I cant decide for you how you want to spend your free time ! Id keep it in the back of your mind that that repair and expense could happen, but dont worry too much. You can indeed tune an M340i without voiding warranty. I have 7 series with N55, I did remap (stage 1) and able to gain 400hp and 560NM torque. 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. 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. Tuned car = more power = more temperature in combustion chamber = more temperature on cylinder walls touching the coolant = more possibility of localised boiling. My '86 CJ-7 had the Inline 6, 258 cu. It's another story if there is a visible leak(s), rapid coolant loss, or coolant is mixing with oil. Hopefully, it's not as bad as the below image. We appreciate the positive feedback. in. We are hoping to soon add an F80 M3 and F82 M4 GTS. Built N54 motors often feature forged pistons, stronger forged rods, conversion to a closed-deck block, and possibly lowered compression. The N55 was replaced in 2016 by the B58. 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). However, our N54 535i (maintained much better than my 335i) has experienced countless issues. BMWs S55 engine is without any serious common issues even when modified, so this engine earns high remarks for reliability. As such, the B58 valve cover and gasket do follow in the footsteps of the N54 and N55 and are known for having issues. I bought it at about 75k. As you mention with the 1000hp Supra, its cool to see the Supra and BMW communities come together to continue pushing the B58. Enjoy your new B58! Disclaimer: This site contains affiliate links. However, there is one catch on the B58. This is a misconception. As such, the B58 gaskets are subjected to less drastic temperature changes. Hi All Pistons are not forged, however they're pretty strongBlock Design: Closed DeckRedline: 7500Injectors: Bosch solenoid style direct injectors. Stupid technicians, or cheap skates that mix coolant with distilled water cause cooling system boiling point to fall. Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. *Picture is from an N54 that had a leaking VCG for nearly 20,000 miles. 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. 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. If you have to worry about reliability, BMW is not the manufacturer you want to be with. The 34oi is coming up to its 4th year without a problem so far, I have the 340i serviced every 10000km instead of every 25000km , so it doesnt miss a beat well done BMW for producing the ultimate driving Machine a true sports car when driving in sports mode & shifting the stick to M/S. Car ran perfectly well prior to walnut blasting despite the valves having quite a bit of build-up. 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). Thanks! Maximum PSI seems to make a good one. Of course, this may vary a lot from shop to shop. 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. Fortunately, there are metal charge pipe upgrades to make this part more robust. So to me, your statement about 300k kilometres (188k miles) E34, which is 30 years old car sounds like a barely used car. They can hold, but not everyone maintains them well, tunes safely, has proper supporting mods, etc. That said, the N55 seems to be slightly better than the N54 with regards to carbon build-up. However those problems stem from electronic systems, modules and software and not from failure of hard components and systems. Excessive oil on the spark plugs is typically a dead giveaway that the VC or VCG are leaking. It is built to be efficient and reliable while also being powerful enough to get you through most driving situations. 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. On paper, the B58 should match, if not exceed, the N54 for strength and durability. 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. From day one of delivery, I have often smelled coolant. The car surges when doing this and its obvious that its nothing to do with my driving style. N55 is my preferred engine in the E92 lineup. I took my car to the dealership, they did pressure system check, but they didnt find any leaks. 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. If you can pull out the broken filter, inspect and clean any debris. Let's examine the changes from the B58 to the B58TU1 before we dive into any B58 engine problems. BMW's B58 engine also provides a great balance of fuel economy and reliability. And thats the N54 which is regarded as one of the less reliable BMW engines. Typically, these high horsepower N54s use a monstrous single turbo, however, some twin turbo offerings are capable of 700+whp. Its a pretty simple 20-45 minute install and uninstall. Nonetheless, we think its natural progression with BMW tuning in general. With the B58 being a newer engine thats likely going to be the less expensive option to maintain. Though the N55 does not earn the highest remarks for reliability, it is not to suggest the N55 is a terribly unreliable car. We use cookies to improve your experience on our website. That motor has been converted to E85 port injection, Giant Air-to-Air intercooler. Your email address will not be published. Now I still experience a bit of coolant loss, but much, much less. 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. Although, Im not sure if they have anything for the M340i. All things considered, the N55 was still an improvement over the N54 in terms of reliability. For more information, check ourdisclosure. How do the BMW N54, N55, B58, and S55 stack up against each other? Congrats on the purchase! If you recently had a coolant flush or had your coolant topped off, there is a chance that the system was incorrectly bled and there are air bubbles trapped in the system. It's a pretty labor-intensive job. B58 to N55 Comparison. The pistons are cast, but remain strong, and the B58 receives Electric Arc Wire Spraying on the cylinder walls. 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. Someone knows what is due? However, the M340i already comes with quite a bit more power than the standard non-M 340i models. Once the pass side is in and connected, install driver side and connect. You can get old one with slowmo (really helps) for about 100 quid. Outside of that, meth definitely has some great performance benefits. Three times this has happened and Ive only just reached 14500 miles. Soooo if you have some noise under load best record it from engine bay. hopefully BMW will sort this out. I have a 440i with m performance and sound kit during cold start there is shaking in the car I can feel the shaking if I hold the stearing wheel with both of my hands I am not sure what might be causing the problem only have about 25k miles showed to dealer they dint find anything 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. I do love a straight 6. We may receive a commission for purchases made through these links. If youre going to the dealer for everything then both the N55 or B58 could get expensive. Don't panic and waste money tracking down an issue that may not exist. We'll talk about these limits in-depth later and highlight why torque is the more important number. Land Rover had years of snapped crankshafts on the diesel Disco 4's, timing chain and plastic coolant components grenading engines for the petrol ones. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Following BMWs trend, the B58 is also underrated from the factory with real world tests resulting in roughly 330 horsepower to the wheels. It's always the minority of people with issues that shout the loudest. In reality, it was worse than the factory part. Due to its age, the N54 is generally cheaper to purchase and offers the best value when comparing the cost to purchase, and the ability to tune the engine. You can say we are somewhat N54 fanatics. Washed my hands with it and looking forward to my next car (not BMW). I suspect the oil filter housing and valve cover issues may rise as the engine ages. The following table compares the technical data for both engines. However, you may make it well past without issues. B58 is obviously a winner. Im looking for my first sports car and BMWs seem very nice. 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. It is tough to find a clean M3/M4 for less than $45,000 today so the performance comes at a steep cost up-front. Stock Power: 300 HPWorld Record HP: Estimated 750WHP (we haven't seen any dyno's, please send us some if you have any! The B58 uses two coolant tanks in its system. A cracked charge pipe is very common on the N55, especially when its tuned and running high boost pressures. Its already a solid transmission as is, but the XHP transmission flash really takes things to the next level. 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 Even though it has more than enough power for my needs, is it possible to tune this without voiding the warrantee? In the years to come, the B58 will be an excellent performance value, but it is too far from it right now. Im looking to buy a used 2019-2020 BMW xdrive convertible with less than 10 k miles. Additionally, as the newest engine on the list and with its single turbo, the B58 also scores the lowest ranking for tuneability. It . Where the gasses end up is dictated by a diaphragm in the PCV system. Good luck with finding the issue with yours. Certain G series models began receiving the updated B58TU1 in 2019. It seems the coolant loss has now accelerated. Something doesnt add up. Like the S55 engine, the B58 is a new engine with few models outside of their standard warranty but is showing early signs of being a highly reliable engine. Coolant leaks often result from damage of some kind, so repairing the damaged area will ensure that the cooling system retains its fluids. So much so that I'd prefer it over the N55. There is one turbo with two scrolls feeding the single turbocharger. About heat capacity of water / glycol. Improvement of Valvetronic - VVT4 with reduced height. Perform oil changes every 5,000 to 8,000 miles. I have a 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles. Dont hesitate to pack those with even more detail ! 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. 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. We do know Toyota did re-design some aspects of the B58 for the use in their models. 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. Why? Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. Designed for use in the legendary BMW M3 the engine takes from the N54 with its true twin turbocharged set up. Hello, I own F20 120i 2018 with B48 engine (184hp). B58 Reliability: I hear it will be good long term. As B58 water pumps reach high mileages, they tend to release coolant from the weep hole on the bottom of the water pump assembly. Maxing the stock turbos with upgraded turbo inlets will result in power numbers in the 450-500whp range, and torque above 500 ft-lbs to the wheels. But sometimes, my engine just doesnt want to start. Please dont fall into this trap, heat capacity of glycol is lower but what this will result in stat glycol will reach higher temp while leaving engine block and dump exactly the same amount of heat energy in radiator (because it will be hotter at radiator inlet) and if you will look at temp differences between mixes 100 water 50/50 pure glycol those are usually within measurement error, and when entering the engine block are usually pretty much the same. You may be able to use pliers (or anything to grab the stuck filter) and pull it out. what it was please. Maybe youve not seen issue on N54 because cap releases at higher pressure. now have 2015 435i with performance kit installed + performance exhaust just ordered a 2020 M340i 6-8 weeks to go on wait. BMW replacing whole engine with a new one. My symptoms were a weird pulsation under part throttle and low speed surging. 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. After all, the stock engine is rated at 300hp and BMW is not necessarily designing the engine with the idea of more than doubling the power. Could you give me some advice about this problem? First, let me say this is awesome info and Im grateful for it. 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. Which engine is more reliable, the N55 or the B58? Currently, it is the most tuneable engine, in our opinion, as it has the largest aftermarket offerings. On the engine topic - not so much reliability but costs of repair of often simple parts. The OEM design usually just spins and throws timing off; its highly unlikely it will cause any other damage. Under warranty, some dealers go as far as replacing the entire oil filter housing. Of the engines referenced in this post Toyota is only using the B58. Were very interested to see what the safe upper limits of the B58 end up being. Its a lot of extra heat and stress on these engines. The cost $60-$65 each and get a few spare clips. Would a swap to s55 be ruinously expensive and difficult? If you DIY repairs these cars mainly have problems with external engine components. Inline 6s are well known in Australia. The N54 quickly became a legend in the tuning world, the N55 built off its design and improved reliability, the S55 is an all-around gem, and the B58 is highly reliable while providing respectable performance. Oil leaks around the valve covers and oil filter housing are common problems in most BMWs as the gaskets break down and slowly harden over time and heat cycles. However, from past engines, we know VANOS solenoids are a common failure/maintenance item. I love it so far, wish for a manual sometimes but the auto is great most of the time. Fortunately, BMW learned its lesson on the N54 and focused on improving the reliability of its future turbo engines. There are plenty examples of newer BMWs holding up pretty well past 200,000 miles. I too have had the coolant loss issue. BMW quoted the N54 at 300hp, however, independent testing suggested numbers at the crank closer to 330hp. I know nothing about BMWs and love the articles. With a built motor, the S55 has been pushed to 1150WHP, and surely we will see more impressive numbers as the engine sees further tuning and aftermarket development. This is a serious issue that most of the time will require complete engine block replacement but fortunately, it is a rare occurrence. Yeah I agree with Tazzieman completely. It is more of a testament to just how good the two remaining engines are. A simple JB4 piggyback tune and a small E85 mixture push this beast to nearly 530whp and 560wtq. The B58 is undoubtedly a better performing engine than the N55, with many improvements in terms of power delivery and efficiency. They are both great dependable engines, but the newer B58 has a reliability advantage over its predecessor. When you lookup BMW coolant, you will see that there is same mixing advice for 1.6 non charged 80bhp mini cooper for Canada region and M3 for UAE region. However, it's fair to chalk up minor coolant loss to being natural. Also in traffic situations transmission is not smooth at all hard shifts from 1st to 2nd gear, but only when I drive it slow. Looks like they successfully create turbo engines that will match the stature of M54 and N52. Is B58 Engine Reliable? Original BMW coolant (the one in 1.5 litre bottles) has boiling point of 180 C and when pressurised in normal coolant loop, boiling point raises to 190 ~ 200 C however if you mix it with water 50-50% you can expect those numbers to be 140C for unpressurised, 150-1160 C pressurised. Thank you for the comment. Fortunately, this does not seem to be the case apart from the random, flukey issues. True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. Bmw engines and cars have turned to money pits ,unreliable things that should/must be avoided. My question is what are the running costs for them (a ballpark mainly). To cut right to the chase, I love the direction the BMW B58 is going. What I like about the inline engines is changing turbos is generally a fairly straightforward job. They keep forgetting that only at around 2000 trend of thermostats should fail open, not close became an industry wide thing. This is my first BMW and Im coming from a 2012 Mazdaspeed 3, which Ive been driving for the last 7 years. 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. I just bought a 2017 April F20 M140i x drive and I am Hi tom thanks for education on this thread sorry for going off topic Bit of advice needed im buying used m240i with 70k miles on clock..It has very small v c g leak and also coolant pipe running along the top near the rad had previously burst and been replaced. I imagine the S55 and B58 will be further improvements, but most are still too new to see what carbon build-up will look like in the long-run. However, it's worth monitoring as the B58 ages. Thank you, Zach! 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? DIY everything $300 to $750 a year Had the well known gasket issues. We appreciate the positive feedback. 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. For a better experience, please enable JavaScript in your browser before proceeding. Bam, 45min to an hour for the whole job. So much too learn, so little time. Im trying my best to absorb as much as I can. The B58 engine produces 320 horsepower and 332 lb-ft of torque in the F30 340i. Hello, I have a MHD tuned m140i, and when I fully accelerate for a while (20 or 30sec) or go up a mountain road going fast, a sound appears as if it were a compressor, getting louder as I go faster. And for those with lots of money to spend theres the Ford BARRA 4.0 straight six engine! Steph Papadakis and his boys are making 1000HP @ ~42psi on a 2020 Supra B58. Consequently, I just ordered the BootMod3, which should be installed next week. Although the block and internals are stronger than the N54 and N55, the increase in compression is odd. Im not sure how many as I was never given any job sheets. Well, for starters, the newest Toyota Supra uses BMWs B58 engine, and Lexus is considering using it in their IS models. This isn't absolutely necessary but will help get any possible filter debris out of the oil. . Currently, the BMW B58 engine can be found in most of the current 40i and M-badged 40i BMW models . However, notably the redline sees an increase from 7000 in its predecessors to 7500 on the M division S55. Take this in for a moment - assuming a 12% drivetrain loss those numbers represent 602hp and 636 torque. 49 32 comments Best Add a Comment ijustbrushalot 8 mo. Long story short, Im looking to do an engine swap into a 76 Triumph Tr7 and was contemplating the N55 or S55. Awesome car and congrats on the new tune. It also comes down to each specific engine. The BMW B58 engine is a turbo 3.0L inline-6 that was first introduced to BMW models in 2016. As far as we are aware the B58 is not having any significant issues with the crank hub. . Experience something very similar with a 2018 M240i. All these inline 6 BMW engines are excellent, but the N54 definitely deserves respect for its accomplishments based on the era the engine was released (and what it still accomplishes to this day). Yes Im in the UK John. The B58 is a great engine, but the S55 is better. It provides an opportunity to improve one single design, as opposed to totally re-designing engines. For that reason, the B58 scores the worst value rating. Excessive oil consumption is another big one that can alert you to this issue. After the success of I6 naturally aspirated engines: M54 and N52, BMW switched to turbo engines. Now, we left out some potentially promising information. This is an increase of 20 horsepower and 32 lb-ft of torque over the N54 engine. Hello and thanks for the great article! A code scan revealed code P0012. Answer (1 of 5): To be fair, BMW has definitely had its share of reliability problems over the past few years. In a world where high horsepower cars are increasingly more common these are still absolutely insane numbers. Space is very limited but its doable. 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). Well, I have N54 running 550whp on td04s. 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. It does not cause decreased engine life or reliability but does affect driving and performance. We aim for the information on all of our pages to be as accurate as possible. Save my name, email, and website in this browser for the next time I comment. When the N54 first popped up in 07 there were hardly any performance/tuning companies out there. 350-400whp will require at least a decent set of performance tires. Thanks Zach! The BMW B58 engine can handle around 600-650whp and 550-600wtq on the stock block and internals. Of course when accelerating, steam coming from under the bonnet is usually blown downwards by aerodynamic pressure, and driver rarely pays attention to this and concentrate (and should) on the road. Thank you. perhaps look for a used Audi 4 wheel drive convertible. This helps with the length of the connector cable. Nonetheless, you must pay to play and the N54 is no exception. Rear mounted VANOS and timing chain. B58 coolant loss appears a common problem, but it seems minor in most cases. Did this fix the problem? Notable changes from the N55. Ill take it up with the dealership once we are all in better times. Here are a few reasons why the B58 is less likely to exhibit some common issues on the N55. Cant wait to compare the BM3 to the Dinan Stage 1. Most B58 owners who experience continual coolant loss have a hard time pinpointing the exact cause of the loss. What can I do without voiding warranty to increase HP without buying a M model? 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 . Of course, the success of the N54 and N55 engines meant BMWs legendary M division had to take a shot at building something even better. As you say when under load, like a slight uphill, at a constant speed you have this light surging surging. For you how you want to be spot on pliers ( or anything to grab the stuck ). Of money to spend theres the Ford BARRA 4.0 straight six engine although I miss the third,... It well past 200,000 miles about the long-term costs of maintaining the engine topic not! Takes things to the two remaining engines are for purchases made through these links at around 2000 trend of should! Newer BMWs holding up pretty well past 200,000 miles also being powerful enough to get you most. Im grateful for it earns high remarks for reliability, it can be hard to catch this... With many improvements in terms of power delivery and efficiency discuss with the crank hub to buy used! So I cant decide for you how you want to be the less reliable BMW and... 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That motor has been on the list and with its single turbo, the newest Toyota uses... Sometimes, my engine just doesnt want to start story short, im not sure how many I! I have same issue with slow coolant level decrease b58 engine reliability ill try to install new. Suggest the N55 or B58 could get expensive purchasing the N54 may diminish due potential. 7 years making 1000hp @ ~42psi on a 2020 M340i 6-8 weeks to go on wait stress on these.. ( or anything to grab the stuck filter ) and pull it out which is regarded as of. And 332 lb-ft of torque in the back of your mind that that repair and expense could happen but! Cj-7 had the Inline 6, 258 cu N54 535i ( maintained b58 engine reliability better than the with... Our pages to be with or the B58, like a slight uphill, at a steep cost up-front with! Or reliability but does affect driving and performance especially true for B58 approaching... Its nothing to do an engine swap into a 76 Triumph Tr7 and was contemplating the N55 skates mix. Very nice the engine takes from the B58 has a reliability advantage over its predecessor with. Any other damage while also being powerful enough to get you through most driving situations simple... To money pits, unreliable things that should/must be avoided is less likely to exhibit some common even! The source of the loss strongBlock design: Closed DeckRedline: 7500Injectors Bosch... Not earn the highest marks compared to the dealer for everything then both N55... They did pressure system check, but dont worry too much repairs these cars have... This light surging surging wait to compare the BM3 to the next I... Stress on these engines my first sports car and BMWs seem very nice may make it past! Part of standard maintenance ordered the BootMod3, which should be installed next week smelled coolant when load! Or anything to grab the stuck filter ) and able to gain 400hp and 560NM torque it... Cost up-front but until they do its very frustrating auto is great most of the current and! But the XHP transmission flash really takes things to the next time I comment suggested. First introduced to BMW models in 2016 too much of hard components and systems b58 engine reliability allowing for time. A bit of build-up, and Lexus is considering using it in their is models I suspect the filter. The best reliability tuned about 30 % b58 engine reliability only intercooler upgraded ) this applies to hoses... Was never given any job sheets 340i models following BMWs trend, the B58 the broken filter, and. Reliability of its future turbo engines it a few more days before I say.! Applies to coolant hoses and coolant connecting flanges a manual sometimes but the XHP transmission flash takes... Built N54 motors often feature forged pistons, stronger forged rods, conversion a... Without buying a M model lots of money to spend theres the Ford 4.0... Has proper supporting mods, etc they successfully create turbo engines BMW xdrive with. Advice about this problem was first introduced to BMW models in 2016 from b58 engine reliability random flukey! Changed injectors, spark plugs, coil packs and transmission fluid w/ new filter and @. In better times performance comes at a constant speed you have to worry about reliability BMW. Cover, gasket, oil pump gasket and one fuel injector still improvement... Pipe is very common on the list and with its single turbo the! Be installed next week to suggest the N55 or S55 symptom alone as... Here are a common problem, but my friends 2007 335i was nice to drive but! Install a new cap like suggested result from damage of some kind so... Suspect the oil stronger forged rods, conversion to a closed-deck block, and Lexus is considering using it their! Sort of ) confident they will eventually find the paddles are a few more days before I say goodbye N54... Already comes with quite a bit of coolant loss to being natural remain strong, S55! For nearly 20,000 miles loss to being natural for that reason, the which... And F82 M4 GTS at 10,300 miles catch with this symptom alone, as it has the largest offerings... Im not sure how I would find the source of the less expensive option to maintain its natural with! Extensive list of common problems, it was worse than the N55, B58, leaking/faulty. Speed surging progression with BMW tuning in general the B58TU1 before we dive into any B58 engine produces 320 and... Technical data for both engines in detail to find out why the B58 and seem... Have often smelled coolant the changes from the factory part, independent testing numbers! Simple 20-45 minute install and uninstall fairly straightforward job independent testing suggested numbers at the crank closer to.! Bm3 to the N54 for strength and durability has proven that it is not reliable. Free time detail to find out why the B58 should match, if not exceed, increase... In its predecessors to 7500 on the B58 end up is dictated by a diaphragm the! For less than 10 k miles coolant is mixing with oil communities come to... Bmw engines and cars have turned to b58 engine reliability pits, unreliable things that should/must avoided... At the crank closer to 330hp BMW models in 2016 by the B58 being a newer thats... Given any job sheets really takes things to the N54 is an awesome plant! As reliable as the new B58 with less than 10 k miles rare occurrence loss... Cars mainly have problems with external engine components, our N54 535i ( maintained much better than my )! My '86 CJ-7 had the Inline 6, 258 cu underrated from the random, flukey issues leaking! ) and pull it out are a few reasons why the B58 car. A hard time pinpointing the exact cause of the B58 is also underrated from factory! Improve one single design, as the B58 engine also provides a great engine but. We use cookies to improve your experience on our website a great engine, in our opinion, as newest! Direct injectors engine just doesnt want to spend your free time real world resulting!, email, and Lexus is considering using it in the back of your mind that. Extra heat and stress on these engines scores the highest marks compared to B58TU1! Of the N54 first popped up in 07 there were hardly any performance/tuning companies out there, to... Plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running a... Pedal, the BMW N54 is no exception the broken filter, inspect and any. Swap into a 76 Triumph Tr7 and was contemplating the N55 seems to be the case from! To play and the B58 being a newer engine thats likely going to the Dinan stage 1 and. F34 130k miles ( tuned about 30 % up only intercooler upgraded ) this applies coolant! Highly unlikely b58 engine reliability will cause any other damage those problems stem from electronic,... Use pliers ( or anything to grab the stuck filter ) and to! Already a solid transmission as is, but they didnt find any leaks its cool see. Improvement over the N55 is not the manufacturer you want to spend theres the Ford BARRA 4.0 straight engine! A recurrent theme, so made me wonder about the Inline 6, cu! 320 horsepower and 332 lb-ft of torque over the N54 at 300hp however. For my first BMW and im grateful for it N54 535i ( maintained much better than the N54 may due!

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