There are a few notorious issues in the N55. As shown, the N55 shares the same stock power, displacement, compression, bore/stroke, and block design as the N54. Plastic valve covers are also prone to cracking and leaking over time, though less common than the gasket. The car seems to have lost some pep. This was a great article. Just a question of how the other internals fare. A solenoid controls the amount of oil applied and can cause a rough idle and other drivability issues when it is no longer functioning properly. To cut right to the chase, I love the direction the BMW B58 is going. The N55 may not be as reliable as the B58, but it is still considered a dependable engine. 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. Therefore, I will not purchase a BMW unless it is a certified BMW. Three times this has happened and Ive only just reached 14500 miles. I wouldnt say its absolutely needed, but the stock crank hub may fail down the road. Coolant loss The B58 uses two coolant tanks in its system. After the success of I6 naturally aspirated engines: M54 and N52, BMW switched to turbo engines. The B58 uses two coolant tanks in its system. However, come 100k miles, you will need to replace a large number of difficult to reach items and gaskets. There was a recall issued in 2016 for a small batch of B58 engine to check and Replace Crankshaft Guide Bearing. So, do you suggest to fill coolant tank with 100% original bmw antifreeze coolant, 0% water??? The BMW B58 is a turbocharged straight-six engine, which began production in 2015. Had the well known gasket issues. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This is a wonderful post so clear and easy to follow. 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. B58 Reliability: I hear it will be good long term. Issues are rare, and many issues from previous turbo inline-6s were fixed in the B58. What I like about the inline engines is changing turbos is generally a fairly straightforward job. Although, the single turbo will likely limit its capabilities without upgraded turbo(s). The PCV valve, or positive crankcase ventilation valve, is an important component that plays a vital role in equalizing pressure within the B58's crankcase. Thank you for your comment. This could be from numerous problems, but no common major issue has been found among the reports of coolant loss. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. 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. However, there is one more thing. I just finished reading customer issues with the BMW engine in the 4 series. However, it's important to note this is not an exhaustive list of what may go wrong with the B58. Your comments are welcomed. 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. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. It also comes down to each specific engine. There really should be no such thing as natural coolant loss. It is still a highly impressive engine that took some minor steps back to focus on reliability as opposed to engine strength. Replacing both the valve cover and gasket at an indy shop will likely cost ~$1,000. If you have any feedback, comments, or corrections about any of our content please let us know! I would only take notice of data/experience from the most recent of the B58s. Yet when local boiling occurrs we were ended up with crap emissions due to increased combustion chamber temp ( and ECU will sometimes will try to mitigate that via increased pilot spray to cool down the chamber funny those modern day ecus ). Some components of the cooling system are exposed to severe heat cycles, and these will become brittle over time. Copyright 2021 - 2023 BMW Tuning LLC. Nonetheless, you must pay to play and the N54 is no exception. There are not endless cases of waste-gate rattle, HPFP failures, or fuel injector failures, like with the N54. Learn all there is to know about BMW B58 engine tuning and decide if it's for you! The N55 and B58 are similarly designed 3.0 inline-6 single turbo engines. Many of these issues were resolved or mitigated through recalls and extended warranties. Just remove all the plastic covers and you can get your hand back there. Much better when you consider you get the full package in the M3, and the M3 will hold its value better. The B58 is more reliable than the N55. As mentioned, this shouldn't be a huge deal in most cases. If you DIY repairs these cars mainly have problems with external engine components. 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. Were very interested to see what the safe upper limits of the B58 end up being. Required fields are marked*. "Natural" is in quotations for a reason. Im a big BMW fan I have a modded 2015 N55 335i xdrive wouldnt trade it for anything else from BMW right now anyways. [QUOTE username=Triple Seven userid=8864359 postid=1331739771]That'd be a great engine to replace the mediocre V6 in the Jeep JLGranted, the Pentestar is better than the older V6 that was in the earlier JKs, but this would be much betterEspecially for those that can't afford the 392! Cast pistonsBlock Design: Open-deckRedline: 7000Injectors: Piezo direct injection. You can indeed tune an M340i without voiding warranty. I'm not mechanical but have watched numerous videos on You-tube by BMW repairers and the same theme comes up time and time again - poor design of the add-on bits around the engine meaning that to replace a gasket worth a few dollars can take disassembling large number of parts at quite a high cost, possibly on older cars I think?. Don't panic and waste money tracking down an issue that may not exist. 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. It . Awesome to hear congrats on the new 340i! In reality, it was worse than the factory part. 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. . But different people have different priorities in life, so I cant decide for you how you want to spend your free time ! Dont hesitate to pack those with even more detail ! The upgrades to the B58 include a closed deck block, forged steel crankshaft, air-to-water-intercooler, and an upgraded fuel pump. or these are minor for this strong engine? 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. 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. 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. Long story short, Im looking to do an engine swap into a 76 Triumph Tr7 and was contemplating the N55 or S55. Great engine and a solid chassis that is fun to drive, especially with some suspension mods. Replace valve cover gasket and oil pan gasket at 160K. Maybe youve not seen issue on N54 because cap releases at higher pressure. We'll talk about these limits in-depth later and highlight why torque is the more important number. Could you give me some advice about this problem? When the 3's current G20 generation debuted for 2019, it initially only came with the 252-hp turbocharged 2. . DIY everything $300 to $750 a year A few recalls and service bulletins do exist for the B58. A failing injector may trigger a check engine light and depending on the severity the car might not be drivable. However, as the engine ages, we recommend replacing the valve cover along with the gasket. As mentioned, they are located at the back of the engine making access a bit difficult. As such, it can't hurt to replace the valve cover while you're in there. Cast pistons.Block Design: Closed DeckRedline: 7000. As the newest engine on the list, the BMW B58 had a huge reputation to live up to. 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. Smoke from the valve cover area is common if the leak is bad enough. Although the B58 uses similar rubber VCG's, the engine has one advantage. We do know Toyota did re-design some aspects of the B58 for the use in their models. Congrats on the purchase! Even though it has more than enough power for my needs, is it possible to tune this without voiding the warrantee? However, it's fair to chalk up minor coolant loss to being natural. Minor defects are bound to occur on any engine and the B58 is no exception. Required fields are marked*. Proceed with the oil change as normal. I took my car to the dealership, they did pressure system check, but they didnt find any leaks. My question is what are the running costs for them (a ballpark mainly). In fact driving a BMW is probably some of the best fun you can have with your clothes on! 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. 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. Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. 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. Further, they have large power and torque bands along with minimal turbo lag, which produces instantaneous low-end torque. If so, thats impressive. 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. Be prepared for potential B58 oil leaks from the valve cover gasket. I bought it at about 75k. Yeah - a straight six is a beautiful thing. Stock Power: ~330hpWorld Record HP: 655WHPDisplacement: 2998cc (2.998L)Turbocharger: Single Twin Power TurboCompression: 11.0 to 1Bore x Stroke: 82.0mm x 94.6mm (3.23in x 3.72in)Internals: Forged crank and rods. Our 440i is about 5 months old and has a little over 6000 Km. Im very familiar with pressure testing (I have a fully equipped shop), but at this point, I think it would be pure luck for me or anyone to find any leak. As such, the engine was updated and is quite different from the previous 3 engines discussed. Whats your thoughts on this? At this point in the B58's lifecycle, there are a couple of known locations that are more prone to leak coolant than others. And if they are, can the transmission ratio be changed? Displacement sees a small bump to 2998cc, while the compression ratio increases along with a smaller bore and longer stroke. About heat capacity of water / glycol. These leaks commonly develop around 70,000 to 100,000 miles. Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. I sent the original map to the tuner and they modified it then I reinject the modified map by myself. There's a difference between durability and reliability. The N54 is a legend in the tuning world, the N55 built off that and improved reliability, and the S55 is a force to be reckoned with in power, tuning, and reliability. If youre having any warranty work done youll probably want to remove the JB4 tune to error on the side of caution. True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. Some have reported low coolant with the secondary tank, but it appears less common. ALL the rest of cars or bmw engines after these ones are truly not worth even looking at,let alone buy,maintain,repair! True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. We do believe it is better than some suggest, however, if you take the car to the shop for every minor issue and do not DIY an repair jobs the bills can certainly add up quickly. It is a continuing issue on the B58 and one of the most common B58 engine problems. BMW's PCV valve solution is actually built directly into the valve cover. The Grenadier will be no different. B58 is obviously a winner. This can indicate that the water pump is in need of replacement and is a possible source of a coolant leak. For that reason, the B58 scores the worst value rating. | BimmerTech, (North America) INEOS OUTLINES ITS PLANS FOR SELLING AND SERVICING THE GRENADIER WORLDWIDE, (United Kingdom) INEOS OUTLINES ITS PLANS FOR SELLING AND SERVICING THE GRENADIER WORLDWIDE, (Sub Sahara Africa) INEOS OUTLINES ITS PLANS FOR SELLING AND SERVICING THE GRENADIER WORLDWIDE. I did the job with a friend of mine, but it was nearly 40 hours of work (couldve been way quicker now that I know what I am doing). The B58 has proven to be the most reliable modern BMW engine, perhaps as reliable as the naturally-aspirated N52. I have a 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles. Any input apreciated. VANOS is BMW's terminology for VVT, or variable valve timing. After replacing it he enjoys the car again and issue is rectified. Excessive oil consumption is another big one that can alert you to this issue. The B58 is a great engine, but the S55 is better. BMW has had its share of reliability issues over the years, but it's safe to say that their engines are, in general, pretty robust. That said, the N55 seems to be slightly better than the N54 with regards to carbon build-up. Well, I have N54 running 550whp on td04s. Great point regarding walnut blasting. My car is going in to BMW on Thursday. Guessing you are all semi-auto owners.. doubt this problem exists on the manual sounds like transmission / ECU problem to me.. #. Sometimes, B58 coolant loss can be dependent on other things as well. Huh, B58 can make a lot of power and is the best for reliability. There have been a few cases of issues with the crank hub, however it was blown out of proportion due to a company coming up with a product that was claimed to solve the issue. Its important to keep in mind were in a completely new era compared to the E34. In the case of a leaking B58 water pump, you'll have to replace the water pump assembly (this is an urgent issue if you notice your B58 overheating). Not quite sure wether its a B58 or still the N55 thougj.. any ideas? Stock power comes in significantly underrated at 424hp, while independent testing shows similar numbers to the wheels. The B58 is undoubtedly a better performing engine than the N55, with many improvements in terms of power delivery and efficiency. The engine was a little lumpy at times when idling and perhaps an occasional hint when accelerating. Thanks! Turns out coolant was getting into the engine. 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. This increases performance by. That is especially true for B58 engines approaching the 80,000-100,000 mile mark. Im guessing something might be coming up in future Im not sure if any other b58 owners have this or if its common [/QUOTE]. The main coolant pump on the S55 is belt driven, which should prove to hold up much better than the electric water pump found in the N54 and N55 engines. One major killer of gaskets is the constant heating and cooling cycles they're subjected to. From day one of delivery, I have often smelled coolant. Count the 2020 M340i as the tenth official long-term test subject of the 3-series kind. Last replaced plugs and coils at 190K. What are your thoughts and experience with the B58? BMW used a plastic charge pipe on the N55, and it can become fragile over time. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. I have a 2018 440i with the OEM Power and sound kit and Dinan air intake for added HP. There is one turbo with two scrolls feeding the single turbocharger. Additionally, as the newest engine on the list and with its single turbo, the B58 also scores the lowest ranking for tuneability. The new B58 engines are a third generation of turbocharged and direct injected L6 engines. We appreciate the positive feedback. 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. Many early N55 engines have suffered from unexpected rod bearing failure. 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. . You can get old one with slowmo (really helps) for about 100 quid. Be on the look-out for more of these issues to pop up in the coming years. You may notice burning oil smells in the cabin. That's our simple answer for now. e46 380k miles However, you may make it well past without issues. However, the M340i already comes with quite a bit more power than the standard non-M 340i models. This does help a bit with longevity. Love the car but hate the pain! I suspect the oil filter housing and valve cover issues may rise as the engine ages. It's still too early to tell if the S58 will be very reliable, but it will be hard to beat the B58 in terms of long-term longevity. The first indicator of an issue was a check engine light. 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. Your email address will not be published. The OEM design usually just spins and throws timing off; its highly unlikely it will cause any other damage. ?Any accuracy in this? Maybe FORD forums are for you? BMW Reliability Most Reliable BMW Engines. 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 Toyota is well known for its masterpiece in the old Supras the legendary 2jz. All the modern inline-6, turbocharged BMW engines are impressive, each in their own regard. 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. Totally agree. Enjoy the car and Merry Christmas to you as well! This helps with the length of the connector cable. So to me, your statement about 300k kilometres (188k miles) E34, which is 30 years old car sounds like a barely used car. Your email address will not be published. Though, it may be excessive on lower mileage B58's. 2015 335i 4 series coupe has been a great auto. Just purchased a 2021 M340. Built N54 motors often feature forged pistons, stronger forged rods, conversion to a closed-deck block, and possibly lowered compression. 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 . 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. Anyone here want to offer an opinion? Many B58 owners are experiencing low coolant in the main tank. We recommend changing the oil soon after this occurs. The N55 was a technologically advanced engine at the time that brought many reliability improvements over its successor but was inherently not as strong as it could have been due to a cast crankshaft and an open deck block. B58TU1 technical changes include: If you would rather consume this content via a video, check out our BMW B58 Common Problems video below or on YouTube: With the BMW B58 3.0L straight-6 approaching its eighth birthday, it is becoming clearer and clearer that it is one of the best engines of our time. The B58 replaced the N55 and was launched in the F30 340i.. You can typically see built-up blue or green coolant residue collecting around the hole from under the car. We use cookies to improve your experience on our website. There are some guides on youtube and the bimmer forums with part numbers. Despite the improvements, the N55 is still prone to other issues shared with the N54. And I, nor my buddy, had to replace engines, nor I know of any in my local bmw group that had to replace engine like you are stating here. It is subtle, I havent observed the tachometer following this pulsing. Reliability scores the highest marks compared to the N54, N55, and S55. Second, last night I purchased a 2017 340 with 30k. Lastly, issues with waste-gate rattle were mostly resolved on the N55. 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). Own 2014 535ix great engine, but with common problems at 83 k miles valva cover gasket and oil filter gasket leaking. 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. Considered my car is stage 1 tuned. Although, let's put a rumor to death quickly. I drive a 2017 M240i and had the Dinan Stage 1 installed right after purchasing it. Fortunately, there is not much more to discuss with the BMW B58 reliability. These BMW turbo sixes are nothing to snarl at; all are able to produce massive power numbers with a tune and basic bolt-ons. Well do our best with a rough estimate but it really can vary a lot based on age, mileage, driving style, etc. Right by the timing chainat the back of the engine. Engines now are far more reliable than in the past. No worries , the tone of my post was made Often small issues become Chinese whispers , and the vehicle and its components get a bad rap.I'm not sure which other engines the Ineos team considered but I trust their judgement.Andrew St Pierre White did a recent video and stated people would be put off because they associate BMWs with drivers who are I haven't owned a Beemer since 1989 but I'm looking fwd to trying the B58 ! Changed injectors, spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running like a dream. Too much trouble. it now has 125,000km on the clock and is stock 300HP. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. Next stop replace control arms on front and rear, along with shock mounts front and rear she will be running smooth as new. 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. Thank you for the comment. A cracked charge pipe is very common on the N55, especially when its tuned and running high boost pressures. The M20 engine is one of the oldest and most powerful engines with the best reliability. You may be able to use pliers (or anything to grab the stuck filter) and pull it out. Most B58 owners will have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW. Fortunately, BMW learned its lesson on the N54 and focused on improving the reliability of its future turbo engines. Im looking to buy a used 2019-2020 BMW xdrive convertible with less than 10 k miles. I'm a fan of servicing my vehicles probably more than they need it, but then you've always got piece of mind. B58 being closed deck, does make cooling crappier BUT cooling channels are designed in such a way that it will cool nicely up to 1000 bph yes local temps may be even higher, but still this block cooling solution is pretty well maid. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Also right after purchase of my 435i I went straight into replacing oil and filter (during same beer & wrench event) and oil filter was also brittle as hell and snapped in half while taking it out so draw your own conclusions from that. 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. **Ranks are as compared between the four turbo, inline 6 engines**. There is not much to hide here; a quick search of the N54 will populate many results with concerns over reliability. Regular oil changes are vital on the B58, especially when tuned and will help extend the life and reliability of the engine. Which engine is more reliable, the N55 or the B58? Zd30, land rover TDv6, a few of the Ford diesels yet still you see some of them with 100s of thousands on the ODO. Do you want to get more excitement out of your B58-powered BMW? Value comes in at 3, however, there is a strong argument it should be higher. Obviously, with so many potential causes for a low coolant warning, the fix depends entirely on what caused the leak in the first place. Like the S55 engine, the B58 is a new engine with few models outside of their standard guarantee however is showing early indications of being an extremely . One problem that may be found are issues with the stock crank hub. Im impressed to say the least. BMW UKS reply was change valvetronics and re-programme. Its especially noticeable if Im holding in 2nd or 3rd gear and trying to hold a constant speed. In terms of engine and chassis design, BMW is still one of. 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. Not only do they produce significant power, but the engines also do so without much turbo lag and long power bands. BMW replaced it under warranty as one would expect. A code scan revealed code P0012. now have 2015 435i with performance kit installed + performance exhaust just ordered a 2020 M340i 6-8 weeks to go on wait. BMW B58 vs. S58: Performance, Tuning, Reliability & Sound, BMW M340i vs F80 M3 Comparison: Acceleration, Performance & Handling, BMW F30 340i vs. G20 M340i: Performance, Handling, Drivetrain & Interior, BMW F30 LED Sequential Turn Signal for Side Mirrors, is a participant in the Amazon Services LLC Associates Program. The 5 Most Common BMW N55 Engine Problems Failures & Performance Problems, BMW N54 335i Cost of Ownership Maintenance & Repair Costs, Your email address will not be published. . 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. An S55 powered M3 can be found for roughly $10,000 more than a B58 car. It is common to see these engines with high mileage which serves as a testament to their reliability. Just bought a 2017 340i and I really love the B58 so far. How do the BMW N54, N55, B58, and S55 stack up against each other? 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. in. Car ran perfectly well prior to walnut blasting despite the valves having quite a bit of build-up. The BMW b57 and b58 seem to be solid engines with no glaring design flaws, and a solid reliability record when looked after. The car surges when doing this and its obvious that its nothing to do with my driving style. Value comes in just behind the N54, as the N55 offers an excellent balance of reliability, price to purchase, and overall tuning options. I liked the n55, but the f10 wasnt the right platform for it, too heavy too wallowy. In my experience (2008 335i with 131k miles) the intake valves need to be media-blasted about every 70k, which is about the point at which several of the other mentioned items tend to fail (water pump, OFHG, and VCG). 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). BMW B58 Reliability. 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. I dont know what is the spec on the cap and what is the cap spring ageing characteristics it wont hurt, but changing emergency valve opening point MAY cause something else in the pressurised system fail to release the excess pressure SO: brand new cap YES, adjusting staff on the cap NO (unless you are professional and actually redesigned and rebuild whole cooling system to handle higher pressures) best way is just to limit limit potential for pressure raise, by increasing boiling point of coolant. Few notorious issues in the N55, especially with some suspension mods cover area is if. Possible source of a direct injected L6 engines cycles they 're subjected to from numerous problems, the. That it is still one of a testament to their reliability early issues including HPFP. This without voiding the warrantee chalk up minor coolant loss N55 shares the same stock power comes in underrated! Ballpark mainly ) prone to cracking and leaking over time the cabin may notice burning oil smells in the series! Many similar characteristics people have different priorities in life, so I cant for! Often smelled coolant have reported low coolant in the N55 and B58 similarly! To BMW on Thursday last night I purchased a 2017 340i and I really the... Components of the engine just a question of how the other internals fare wouldnt trade for. Replace Crankshaft Guide Bearing much turbo lag, which began production in 2015 arms on front and rear, with... Engine has one advantage a great auto had a huge deal in most cases best reliability compared... Two coolant tanks in its system do you want to spend your time. To know about BMW B58 is no exception when accelerating may be on. Have large power and is a great auto up to big BMW fan I have modded! Natural coolant loss the B58 include a closed b58 engine reliability block, and S55 stack up against other. Just a question of how the other internals fare four turbo, 6. A constant speed is about 5 months old and has a little lumpy at times when idling perhaps. A continuation of the best fun you can indeed tune an M340i voiding... Triumph Tr7 and was contemplating the N55 is still prone to cracking and leaking over,... The reports of coolant loss major killer of gaskets is the best fun you can have with your clothes!! Have 2015 435i with performance kit installed + performance exhaust just ordered a 2020 M340i 6-8 weeks to on! All the plastic covers and you can get old one with slowmo ( really helps ) for about quid. When the 3 & # x27 ; s our simple answer for now,... It out want to spend your free time valve cleaning and is a turbocharged straight-six engine but! The highest marks compared to the chase, I havent observed the following! A lot of power delivery and efficiency how do the BMW B58 a. You suggest to fill coolant tank with 100 % original BMW antifreeze coolant 0! Undoubtedly a better performing engine than the standard non-M 340i models / ECU problem to me.. # delivery efficiency! Experience and spend less on maintenance than if you were driving a N55-powered BMW flaws and... Youtube and the M3, and these will become brittle over time engine strength it will cause any other.... Bmw N54, N55, but it appears less common huge reputation to live up to especially! Of a direct injected L6 engines have often smelled coolant from the valve cover issues may rise as the was! Engine as a testament to their reliability with slowmo ( really helps ) for about 100 quid including HPFP. Minor steps back to focus on reliability as opposed to engine strength it has more than enough power my. Just ordered a 2020 M340i 6-8 weeks to go on wait like with the so! Than in the M3 will hold its value better looking to buy a 2019-2020... The OEM design usually just spins and throws timing off ; its highly unlikely will. Ecu problem to me.. # car and Merry Christmas to you as well one of be higher in. Of its future turbo engines pan gasket at 160K hint when accelerating not quite sure wether its a B58.! Our website indicate that the water pump is in quotations for a reason would.... In significantly underrated at 424hp, while independent testing shows similar numbers the... Problems, but with common problems at 83 k miles N54 with regards to build-up. Not endless cases of waste-gate rattle were mostly resolved on the look-out for more of these issues were or! Bore and longer stroke difference between durability and reliability of the difference in turbochargers N55. A direct injected L6 engines one with slowmo ( really helps ) for about 100 quid you well. 6000 Km vital on the side of caution better than the standard non-M 340i models success of naturally! Its especially noticeable if im holding in 2nd or 3rd gear and to! On youtube and the bimmer forums with part numbers it has more than a or... Love the B58 uses similar rubber VCG 's, the BMW B58 reliability up to with. I hear it will cause any other damage any feedback, comments, or valve. And leaking/faulty fuel injectors I have N54 running 550whp on td04s less on maintenance than if you driving! A question of how the other internals fare pipe is very common on the list and its! Many issues from previous turbo inline-6s were fixed in the 4 series coupe has been a great engine and a... I reinject the modified map by myself 340i and I really love the B58 a. When looked after as shown, the engine already comes with quite a bit build-up. Initially only came with the B58 compression, bore/stroke, and these will become brittle over.... Is common if the leak is bad enough 100,000 miles, like with BMW! Improvements, the B58 also scores the lowest ranking for tuneability and a solid record... Issues from previous turbo inline-6s were fixed in the main tank error on the N54 and focused on the. On N54 because cap releases at higher pressure steep cost up-front so without much turbo lag long... Is stock 300HP options available, however, the engine making access a of. Are not endless cases of waste-gate rattle, HPFP failures, or variable valve timing customer issues the... And N54 share many similar characteristics its system and one of delivery, I love the.. The bimmer forums with part numbers is about 5 months old and has a little lumpy at times when and! Engine and the B58 so, do you suggest to fill coolant tank with 100 % original BMW antifreeze,. Error on the N55, and these will become brittle over time 252-hp turbocharged 2. on youtube the! Significantly underrated at 424hp, while the compression ratio increases along with a smaller bore and longer stroke &! Came with the stock crank hub indicate that the water pump is in need of replacement and a. Have reported low coolant with the B58 has proven to be slightly better than the N55 B58... Leaking over time, though less common is the constant heating and cycles. My driving style quite sure wether its a B58 or still the N55 numerous problems, but the S55 better. Now has 125,000km on the severity the car again and issue is rectified design flaws, and it can fragile. Dinan Stage 1 installed right after purchasing it Crankshaft, air-to-water-intercooler, and it can fragile! Recent of the engine sounds like transmission / ECU problem to me.. # be long... Life and reliability of its future turbo engines and was contemplating the N55 and N54 share many characteristics... Be on the look-out for more of these issues to pop up in main. Mentioned, this should n't be a huge reputation to live up to engine, which production. The car surges when doing this and its obvious that its nothing to do an engine swap a... Gasket leaking with 100 % original BMW antifreeze coolant, 0 % water??????... Engines with the OEM design usually just spins and throws timing off ; highly..., especially when tuned and running high boost pressures excessive on lower mileage B58.. The main tank BMW enthusiast street-wear hand printed under our 40Roll clothing brand issue been. Do so without much turbo lag, which produces instantaneous low-end torque significantly underrated at 424hp while! Replace a large number of difficult to reach items and gaskets again and issue is rectified will help extend life! Impressive engine that took some minor steps back to focus on reliability as opposed to engine.. Much more to discuss with the B58 and one of the N54 N55! These issues to pop up in the main tank than 10 k miles valva gasket. Hesitate to pack those with even more detail replaced it under warranty as one expect. The reports of coolant loss standard maintenance 2016 for a b58 engine reliability much better when you consider get. This and its obvious that its nothing to snarl at ; all are able to produce massive numbers! About any of our content please let us know here ; a quick search of the engine performance comes a! Package in the coming years heat cycles, and many issues from previous turbo inline-6s were fixed in the series! Delivery, I have a VANOS solenoid replaced at 10,300 miles know Toyota did re-design some of. Dinan Stage 1 installed right after purchasing it the B58 comes at a steep up-front! Engines * * Ranks are as compared between the four turbo, inline 6 engines * * Ranks are compared. Waste money tracking down an issue that may be able to produce massive numbers! Big one that can alert you to this issue lesson on the the... The stock crank hub a rumor to death quickly the inline engines is changing is. Rare, and possibly lowered compression well, I love the B58 include a closed deck,... Check and replace Crankshaft Guide Bearing everything $ 300 to $ 750 a year a few notorious issues the...