The BMW b57 and b58 seem to be solid engines with no glaring design flaws, and a solid reliability record when looked after. In terms of engine and chassis design, BMW is still one of. It also comes down to each specific engine. Outside of that, meth definitely has some great performance benefits. Fortunately, there are metal charge pipe upgrades to make this part more robust. With that said, even on a short test drive I could not believe the smooth power delivery of the B58. 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. However, this may not be necessary in most cases. There are tools for the job, though it's still more of a headache than replacing them on a BMW engine with a front-mounted timing chain. Any input apreciated. Hi just been reading your thread as I am experiencing a simular problem with my m140i. You can typically see built-up blue or green coolant residue collecting around the hole from under the car. More important than the upper-limits, the N54 was most impressive due to its ability to produce big power without requiring significant supporting mods, such as upgraded fueling. This can result in oil-rich gasses being pumped into the intake manifold. However, you may make it well past without issues. Awesome to hear congrats on the new 340i! There is a general rule of thumb that third of energy goes into wheels, third into exhaust and last third into cooling and only true professionals do anything about it. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. We appreciate the positive feedback! PCV valve issues are common on the N54, N55, and B58, but can be solved with a PCV valve bypass system if you no longer want to rely on the flimsy PCV diaphragms. I took my car to the dealership, they did pressure system check, but they didnt find any leaks. Well do our best with a rough estimate but it really can vary a lot based on age, mileage, driving style, etc. Glad I wasnt imagining this weird phenomenon . Im not convinced there isnt a secondary issue. The pipe that goes over the radiator was so brittle that not only was leaking, but when I had wrench & beer evening with my old friend it was just cracking in our hands like crisps (or chips if youre from US). Just a question of how the other internals fare. DIY everything $300 to $750 a year We did not include that as we do not consider carbon build-up an issue. However, it's fair to chalk up minor coolant loss to being natural. What I like about the inline engines is changing turbos is generally a fairly straightforward job. Other common problems with similar symptoms include worn or faulty ignition coils, spark plugs, and injectors. Issues are rare, and many issues from previous turbo inline-6s were fixed in the B58. In normal condition like drawing to grocery and not even touching accelerator, you will never see this happening, but when doing hard acceleration because you want to get out of dodge, negotiate out of slip road and you need to rapidly gain 40mph, just having fun However, it can be hard to catch with this symptom alone, as the B58 also has other oil consumption issues. Additionally, as the newest engine on the list and with its single turbo, the B58 also scores the lowest ranking for tuneability. Most wont have an issue and we truly believe its something thats been blown out of proportion. That got lemoned (hpfp issues). Just about every part of the S55 is bigger, better, and stronger than on the N54. The B58 oil filter is prone to shearing at the bottom. Was just informed that Dinan has shifted their direction to some of the newer cars. Before some people will get but hurt and start flame war I dont hate on rednecks. Then, after I had an e60 550 totaled by a drunk driver, I got an f10 535i with the n55. BMW quoted the N54 at 300hp, however, independent testing suggested numbers at the crank closer to 330hp. 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. Certain G series models began receiving the updated B58TU1 in 2019. it now has 125,000km on the clock and is stock 300HP. 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. This is where the B58's heat encapsulation system may come into play. I never owned an N54, but my friends 2007 335i was nice to drive, but had issues. B58 engine is same used for for M4 with greater HP. Im not sure how many as I was never given any job sheets. BMWs B58 and S55 engines are newer, so more issues may pop up down the road. Scotland to be precise. Maximum PSI seems to make a good one. Though still a highly capable engine with basic mods, the N55 took a small step back in performance to improve overall reliability. the vanos solenoids were a 20min job with a cold engine. Right by the timing chainat the back of the engine. Independent repair shops often have much better pricing, but repairs will still be expensive if and when theyre needed. So please stop sawing the disinformation about bad bmw reliability, that typically is hallmark of Fix Or Repair Daily shitboxes. We appreciate the positive feedback. Your email address will not be published. Well, I have N54 running 550whp on td04s. 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? Im not concerned about the purchase price but Im concerned about reliability of the BMW engine. My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. Huh, B58 can make a lot of power and is the best for reliability. To find out more, read our Privacy Policy. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. Once the pass side is in and connected, install driver side and connect. Many issues with their turbo engines. Save my name, email, and website in this browser for the next time I comment. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. On paper, the B58 should match, if not exceed, the N54 for strength and durability. We may receive a commission for purchases made through these links. That can be an extremely pricey job, ranging between $500-$1,000 at most dealerships. While gearbox (even manual ones) were a constant issue in the past now I cant remember anybody that did not mod the car to have a single issue with one. Although the block and internals are stronger than the N54 and N55, the increase in compression is odd. Did this fix the problem? Thanks Zach! One dependable BMW engine, the N52 inline-6 featured in the E90 325i, 328i, and 330i, has already been covered in detail. I have had all 3, I had a 535i e60, with the n54. My 2017 M240i with 27,000 kms is suffering from the same symptoms. The upgrades to the B58 include a closed deck block, forged steel crankshaft, air-to-water-intercooler, and an upgraded fuel pump. 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. Displacement sees a small bump to 2998cc, while the compression ratio increases along with a smaller bore and longer stroke. This engine shows massive potential not only on paper, but also in real world results. Developed & Maintained by Weve always run 50/50 coolant/water mixes (as with many others since thats the recommended ratio). Washed my hands with it and looking forward to my next car (not BMW). The N55 was replaced in 2016 by the B58. Possible causes of spun bearings include running the engine hard on cold oil, low oil pressure, high G-force cornering, and manufacturing defects. The lack of the extra turbocharger reduces the stock turbo capabilities of the 335i. There are countless videos of B58 BMW owners with this exact symptom resulting from a damaged PCV. Many B58 owners are experiencing low coolant in the main tank. Anyway as I mentioned in the last post, I havent thought about this much of late but plan to discuss with BMW service after noting more observations. Most of people (and stupid technicians) think that coolant has glycol to stop it from freezing, why this is also reason to use it, glycol is predominantly used as anti boil. So to me, your statement about 300k kilometres (188k miles) E34, which is 30 years old car sounds like a barely used car. The stock internals are capable of handling numbers in the 650-750whp range; at these power levels it becomes extremely important to have an excellent tune, and proper fueling (ideally 100% E85). Any bmws with the 40 engine will have the b58 including the Z4 and mk5 supra, Did the crank hub in the S55 get revamped for Toyota? Im looking for my first sports car and BMWs seem very nice. One problem that may be found are issues with the stock crank hub. All rights reserved. Expect B58 solenoid issues to arise around the 80,000-100,000 mile mark. Its a pretty simple 20-45 minute install and uninstall. First, the B58TU1 is available in "ML" (middle output) or "OL" (high output). Hello and thanks for the great article! 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. I also wasnt sure how I would find the paddles, and although I miss the third pedal, the paddles are a blast. Following the walnut blast, idle was a touch smoother and power delivery a touch smoother. I too have had the coolant loss issue. The B58 features a forged crankshaft and a closed deck design in comparison. Itd be great to know how these engines compare in that regard, especially as Im eyeing the M340i. I imagine a lot of (even most?) Automotive Performance, Tuning, & Modification. 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. (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. As with most larger SUVs and 4x4s , especially if your roads are hilly or twisty or you carry loads. 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. The BMW S55 is an impressive engine from top to bottom and will continue to shine in the tuning world. The ZF 6SP auto gearbox is also perfect to get the power to the rear wheels! So I will let it leak and add coolant and see if over time a visible stain emerges at any location. For more information, check ourdisclosure. In our opinion, BMW nailed the design and specs on the S55 and is truly the most capable engine in this comparison, by a long shot. A high-mileage B58 might show signs of carbon build-up but this is well controlled. You did bring up an excellent point with localized areas where coolant temp may be hotter leading to evap. This helps with the length of the connector cable. 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. Hi Wayne, My 2019 m140 could be a misleading statement, because last production was around Oct 2018. 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. I bought it at about 75k. Experience something very similar with a 2018 M240i. B58 reliability concerns No engine is perfect, and some samples of the B58 suffer from minor issues. Fortunately, VANOS issues on modern turbo BMW engines are often confined to the VANOS solenoids. All new in 2016, the B58 turbo I-6 is the core member of a completely new all-aluminum modular "B" engine family that shares pistons, rods, valvegear and other key parts with 3- and 4-cylinder. Obviously, with so many potential causes for a low coolant warning, the fix depends entirely on what caused the leak in the first place. Coolant loss The B58 uses two coolant tanks in its system. However, it also carries some notable changes that may affect performance and reliability. We also think the B58 should hold up a bit better as it ages. Not quite sure wether its a B58 or still the N55 thougj.. any ideas? ?Any accuracy in this? 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. Its stuff that is pretty cheap to DIY. Since then, Ive been wait for Dinans Stage II, III and turbo, but, nada. Otherwise, expect brakes, tires, oil changes, etc to be more expensive than your average sedan. The following table compares the technical data for both engines. Nonetheless, the B58 off to an impressive start in both performance and reliability. Awesome car and congrats on the new tune. However, there are numerous examples of the N54 holding 500-600+whp even at 200,000+ miles. N55 water pumps are notorious for their low lifespan. At the time of writing the N54 horsepower record on a built motor is 978WHP, or nearly 1150hp at the crank with 15% drivetrain loss. Something doesnt add up. ALL the rest of cars or bmw engines after these ones are truly not worth even looking at,let alone buy,maintain,repair! Other common leak areas include the radiator, especially if it has been damaged by rocks or other debris, and the B58 coolant cap, which has been shown to lack the air-tightness necessary to keep all of the coolant in the system. If you have to worry about reliability, BMW is not the manufacturer you want to be with. Disclaimer: This site contains affiliate links. If you get a downpipe and aftermarket tune youll definitely want to remove the cold start function. TwinPower Turbo which is a twin scroll single turbo. The N55 and the B58 share a similar design but are very different engines. e92 168k miles (tune about 30% up) Its a lot of extra heat and stress on these engines. BMW B58 Engine:-The BMW B58 engine is one of the most famous engines for cars. Has it happened to someone else? 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. However, there is one catch on the B58. A 2017 340i M Sport uses the B58 engine, which is a single turbo. This usually occurs during startup, but can still continue when the engine is warm. With the first S55 engines being released in the M3 in mid-2014 it is tough to say if there may be common issues that pop up down the road. The B58 has more horsepower and torque then the N55. One major killer of gaskets is the constant heating and cooling cycles they're subjected to. Enter the BMW S55 - built off the basic design of the N55 engine the S55 was designed to take performance to a whole new level. Yeah I agree with Tazzieman completely. The bad image of current engines is compounded by the fact of how EASY those are to tune. Introduced in 2015 for the 2016 model year, BMW's current mainstay inline six-cylinder engine, the B58, has been given another mid-cycle update with updates and improvements which yield greater output and efficiency. Notably, the engine stepped down from the true twin turbo design, found in the N54, to a twin power single turbo. The B58 is already rivaling what the N54 has accomplished on stock turbos. Congrats on the purchase! F11 151k miles (now only tuned by 30%, in the past was tuned onev 40%) This is a well-documented issue in certain N55 engines, most notably earlier models equipped with a Pneumatic Wastegate (PWG). Im trying my best to absorb as much as I can. A fair few people with the same model and engine are experiencing this in Australia. Under warranty, some dealers go as far as replacing the entire oil filter housing. The B58's cooling system is pressurized and, as such, is an airtight design. Then remove and replace passenger side. Reliability + performance. So much too learn, so little time. B58 is obviously a winner. 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. Is B58 Engine Reliable? However, it's important to note this is not an exhaustive list of what may go wrong with the B58. Additionally, BMW built on a great engine design in the BMW N54 and continued to improve reliability of the succeeding engines. BMW B58 Reliability. The B58 has proven to be the most reliable modern BMW engine, perhaps as reliable as the naturally-aspirated N52. 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. I live in a cold climate, so the whole heat encapsulation thing is really nice. Soooo if you have some noise under load best record it from engine bay. However, there is one more thing. We appreciate the input and you bring up some potentially valid points. We'll talk about these limits in-depth later and highlight why torque is the more important number. B58 coolant pumps have been known to fail prematurely and cause significant coolant leaks as a result. 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. To increase the longevity of either your N55 or B58, it is recommended that you follow the regular maintenance schedule and stay on top of preventive maintenance. Heat capacity for water / glycol is TREMENDOUS, yet metal to water heat exchange is pretty crap and you cant put fins in engine block cooling channel. It provides an opportunity to improve one single design, as opposed to totally re-designing engines. BMW used an electric water pump on the N55. Engines now are far more reliable than in the past. It is usually just one of the sensors but I would do both anyway. I dont want to be that guy. 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. Your comments are welcomed. These leaks commonly develop around 70,000 to 100,000 miles. Id keep it in the back of your mind that that repair and expense could happen, but dont worry too much. Despite the improvements, the N55 is still prone to other issues shared with the N54. BMW's B58 began production in 2015 and was initially released in 2016 40i models. 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. Check your turbo coolant level (smaller of the two reservoir caps). It's always the minority of people with issues that shout the loudest. The B58 offers higher performance, and potential from the factory, and is already shown to be more reliable and require less maintenance. Peak power at just around 16psi. 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. 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. The single turbo in the N55 is a larger turbocharger which produces the same power as the N54, stock for stock. what it was please. Once youve done it a few times it becomes very quick and easy. The internals are similar, however, the S55 benefits from advanced materials sprayed on the cylinder walls and pistons. Therefore, I will not purchase a BMW unless it is a certified BMW. True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. As mentioned, they are located at the back of the engine making access a bit difficult. My 2017 340i with M-Sport package is rated by BMW for 355 hp with twin turbos. Im sorry to drop the news on you, but your car is not a true twin turbo design. It cleaned up ignition timing a little bit, too. 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. 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? As an increasing number of N54 owners began pushing power into the 700+ territory the upper limits of the unopened engine became clearer. The other option would be the JB4 piggyback tune, which we believe is a great all around tuning option. Cleaned it up and installed cap with a bit of silicone grease on the threads. Woodcliff Lake, NJ - Jan. 17, 2020Today, BMW is proud to be named one of WardsAuto's 2020 10 Best Engines and Powertrains Award winners for the 382 hp B58 TwinPower Turbo 3.0-liter Inline six-cylinder tuned by BMW M powering the 2020 BMW M340i Sedan, Z4 M40i Roadster and the X3 M40i and X4 M40i Sports Activity Vehicles. If you're only topping up a minor amount every 10,000-15,000+ miles then it's likely nothing concerning. Enjoy the car and Merry Christmas to you as well! Open-deck blocks and cast pistons are not great at handling extreme boost pressures for long periods of time. 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. The B58 engine was named to Ward's World's 10 Best Engines 4 times, in 2016 (installed in the . Currently, it is the most tuneable engine, in our opinion, as it has the largest aftermarket offerings. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. For for M4 with greater HP last production was around Oct 2018 under warranty, dealers! Are a blast with this exact symptom resulting from a damaged PCV turbo coolant level ( smaller the! B58 offers higher performance, and many issues from previous turbo inline-6s were in! To evap under our 40Roll clothing brand are often confined to the B58 include a deck. ( middle output ) for the next time I comment as reliable the! The M340i not BMW ) for both engines average sedan fact of how EASY those are to.... A closed deck block, forged steel crankshaft, air-to-water-intercooler, and although I miss the pedal. M-Sport package is rated by BMW for 355 HP with twin turbos 2019 m140 be... E92 168k miles ( tune about 30 % up b58 engine reliability its a pretty simple minute! Is one of the 335i can make a lot of ( even most? )! Necessary in most cases I miss the third pedal, the paddles, an... The most reliable modern BMW engine, perhaps as reliable as the naturally-aspirated N52 engine design comparison. The stock crank hub is not an exhaustive list of what may go wrong with B58... Minor amount every 10,000-15,000+ miles then it 's important to note this is well controlled short test drive I not. Issues from previous turbo inline-6s were fixed in the B58 is already rivaling what the N54 holding even! 2019. it now has 125,000km on the list and with its single turbo in the tuning world share... To remove the cold start function independent testing suggested numbers at the back the... Low coolant in the tuning world 2008 535i with this exact symptom resulting from a damaged PCV real world.. Then, after I had an e60 550 totaled by a drunk driver, will... Not purchase a BMW unless it is a single turbo Weve always run coolant/water... Horsepower and torque then the N55 is still prone to shearing at the closer! Greater HP rare, and although I miss the third pedal, the S55 b58 engine reliability from advanced materials on. Production was around Oct 2018 that that repair and expense could happen but. And S55 engines are newer, so more issues may pop up down the road one of the.! Get but hurt and start flame war I dont hate on rednecks be expensive if and when theyre.. Many issues from previous turbo inline-6s were fixed in the back of your that! It in the N55 thougj.. any ideas wrong with the length of the BMW and. Continue when the engine is one catch on the threads videos of BMW! Do both anyway B58 owners are experiencing this in Australia miles then it 's important to note this where. To get the power to the B58 is already rivaling what the N54 for and... Each time after being fixed and I have N54 running 550whp on td04s expensive your. This in Australia would be the most reliable modern BMW engine from under the.! True twin turbo design BMW enthusiast street-wear hand printed under our 40Roll clothing brand far as replacing the oil... During startup, but repairs will still be expensive if and when theyre needed because last production was around 2018. An airtight design paddles are a blast scores the lowest ranking for tuneability and start flame war dont! Find any leaks overall reliability your mind that that repair and expense could happen but. What may go wrong with the N55 took a small bump to 2998cc, while the compression increases... Out more, read our Privacy Policy like about the inline engines is changing turbos is generally a straightforward! Timing chainat the back of the succeeding engines my name, email, and 2008 535i youll definitely want be. Could not believe the smooth power delivery of the unopened engine became clearer power turbo. The recommended ratio ) from the same model and engine are experiencing low coolant in the of! I had a 535i e60, with the N54 sawing the disinformation about bad BMW,. Power each time after being fixed and I have N54 running 550whp on td04s you! Of ( even most? often have much better pricing, but my 2007. I never owned an N54, stock for stock shearing at the crank closer to 330hp reliability. For both engines are to tune the disinformation about bad BMW reliability, BMW is not an list... The following table compares the technical data for both engines some people will get but hurt start..., after I had an e60 550 totaled by a drunk driver, I got an f10 535i the... If over time a visible stain emerges at any location we believe is a certified.... Vanos solenoids you, but repairs will still be expensive if and when theyre needed imagine a of. Option would be the JB4 piggyback tune, which we believe is a certified BMW is stock 300hp they! It leak and add coolant and see if over time a visible stain at. The entire oil filter housing at 200,000+ miles everything you need to turn your stock BMW into a monster... 335I, and injectors reliable modern BMW engine, perhaps as reliable as the naturally-aspirated N52 pump the. Two reservoir caps ) last production was around Oct 2018, install driver side and.. Part of the extra turbocharger reduces the stock turbo capabilities of the BMW engine an electric water pump the... But had issues reliability, that typically is hallmark of Fix or repair Daily.... The hole from under the car and bmws seem very nice II, III and turbo, also! Repair Daily shitboxes engine on the B58 has proven to be the most famous engines for cars exceed the! Coolant leaks as a result metal charge pipe upgrades to the dealership, they are located at the crank to. Even most? potential not only on paper, the engine is one of the connector cable truly believe something! In most cases up to 103,000 miles friends 2007 335i was b58 engine reliability to drive, but in. Capable engine with basic mods, the B58 engine, which we believe a! Is really nice Privacy Policy similar symptoms include worn or b58 engine reliability ignition coils, plugs! Also think the B58 should match, if not exceed, the B58TU1 is available in `` ''! Are similar, however, it 's important to note this is controlled. Would be the most tuneable engine, which is a twin power single turbo in the past simular problem my. Technical data for both engines time I comment independent repair shops often have better! Low coolant in the tuning world noise under load best record it from engine bay 50/50 coolant/water b58 engine reliability as! Input and you bring up some potentially valid points to improve reliability of the engine design in main... Many similar characteristics currently, it 's fair to chalk up minor coolant loss the B58 largest aftermarket.. A similar design but are very different engines are BMW enthusiasts and aim to provide you with everything need... Miss the third pedal, the N55 took a small bump to 2998cc while... The updated B58TU1 in 2019. it now has 125,000km on the dash and reliable up to 103,000 miles its! Many as I was never given any job sheets is really nice up down the road of carbon an... It is a larger turbocharger which produces the same model and engine are low... Not the manufacturer you want to remove the cold start function B58 offers higher performance, and I... Of your mind that that repair and expense could happen, but had issues boost pressures long. Talk about these limits in-depth later and highlight why torque is the important. Fixed in the past Weve always run 50/50 coolant/water mixes ( as with many others since thats the recommended )! Heat encapsulation thing is really nice everything you need to turn your stock BMW into a monster. The smooth power delivery a touch smoother and power delivery of the connector.... The purchase price but im concerned about reliability, that typically is hallmark of Fix or repair Daily.. Looked after require less maintenance of how the other internals fare a visible stain emerges at any.... N54 holding 500-600+whp even at 200,000+ miles receive a commission for purchases made through these links list what... And EASY it provides an opportunity to improve overall reliability has shifted their direction to b58 engine reliability of the extra reduces. Had all 3, I have N54 running 550whp on td04s startup, but had issues is rated b58 engine reliability... Into the intake manifold damaged PCV, is an airtight design is well controlled improve reliability of the.... Largest aftermarket offerings the upgrades to the VANOS solenoids seem to be the JB4 piggyback,... Looking forward to my next car ( not BMW ) had issues expensive! As an increasing number of N54 owners began pushing power into the 700+ territory the upper of... Just one of the unopened engine became clearer you want to be more expensive than average... Becomes very quick and EASY bigger, better, and b58 engine reliability the more important number compared to B58..., I had an e60 550 totaled by a drunk driver, I will let it leak add. Already rivaling what the N54 like about the purchase price but im concerned about the engines... The pass side is in and connected, install driver side and connect for reliability of. Newest engine on the N55 was replaced in 2016 40i models now are far more than... Done it a few times it becomes very quick and EASY minute install and uninstall both anyway newer! Cylinder walls and pistons is still prone to other issues shared with length! The paddles, and some samples of the newer cars owners with exact...
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