Unsurprisingly, the success of the turbocharged inline 6 led to its introduction in the F80 BMW M3 beginning with model year 2015. 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. As such, the B58 valve cover and gasket do follow in the footsteps of the N54 and N55 and are known for having issues. 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. in. The M declination of the B58 engine is the new S58 powerplant, already in use on the new X3 M and X4 M in two output stages: standard with 480 PS (473 hp) and Competition with 510 PS (503 hp). Typically, boosted engines are better suited for lower compression, as a longer stroke subjects the internals to boosted pressures for longer periods. If you want to upgrade preventatively for peace of mind then go for it, but it isnt a necessity. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Absolutely excellent comparison, Zach. So please stop sawing the disinformation about bad bmw reliability, that typically is hallmark of Fix Or Repair Daily shitboxes. This can indicate that the water pump is in need of replacement and is a possible source of a coolant leak. Washed my hands with it and looking forward to my next car (not BMW). Sometimes, B58 coolant loss can be dependent on other things as well. 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. . This increases performance by. Now I still experience a bit of coolant loss, but much, much less. should i stay away? When compared head-to-head, the B58 has shown to have less issues than the N55. Not an ideal strategy, but at this point Im not ready to let dealership mechanics to tear this car apart. Our team of BMW experts relies on various sources of information plus personal knowledge about automotive topics and technical concepts. A forged crank and rods from the factory mean the N54 internals are built to handle some serious abuse; the pistons are cast, but very high-quality cast pistons that can handle serious power and abuse too. AND BTW, I dont know whenever new caps will fix anything. Not sure which car you refer to when you say single turbo. Thank you for the comment. . 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. However, there is one more thing. What kind of HP increase could I expect with the JB4 piggyback tune? In fact, it may not have an equal among all engines on the. As such, it can't hurt to replace the valve cover while you're in there. 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. Tuned car = more power = more temperature in combustion chamber = more temperature on cylinder walls touching the coolant = more possibility of localised boiling. It will save you tone of money in unnecessary repairs bills. The M20 engine is one of the oldest and most powerful engines with the best reliability. Most B58 owners will have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW. 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). Flush out and refill coolant every 5 years. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. Most wont have an issue and we truly believe its something thats been blown out of proportion. Dinan offers stuff thats covered under warranty. Excessive oil on the spark plugs is typically a dead giveaway that the VC or VCG are leaking. Currently stock on stage 1. Wich is a totally different animal Good for 1400 hp or even 2000 hp ,on the dyno at the wheels! Cant wait to compare the BM3 to the Dinan Stage 1. The car surges when doing this and its obvious that its nothing to do with my driving style. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. This is an increase of 20 horsepower and 32 lb-ft of torque over the N54 engine. Well, like all of the modern, turbo BMW engines, the valve cover gasket is made of rubber. Its that sad with bmw. To cut right to the chase, I love the direction the BMW B58 is going. As B58 water pumps reach high mileages, they tend to release coolant from the weep hole on the bottom of the water pump assembly. B58 coolant pumps have been known to fail prematurely and cause significant coolant leaks as a result. Thanks. 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. You can typically see built-up blue or green coolant residue collecting around the hole from under the car. Fortunately, there are metal charge pipe upgrades to make this part more robust. Hi All Replacing both the valve cover and gasket at an indy shop will likely cost ~$1,000. Hi mate,thanks for your reply. What I like about the inline engines is changing turbos is generally a fairly straightforward job. This usually occurs during startup, but can still continue when the engine is warm. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Never put excessive loads on the engine when its still cold. We are hoping to soon add an F80 M3 and F82 M4 GTS. The BMW b57 and b58 seem to be solid engines with no glaring design flaws, and a solid reliability record when looked after. The B58's cooling system is pressurized and, as such, is an airtight design. Minor leaks may not produce enough smoke to notice. Car ran perfectly well prior to walnut blasting despite the valves having quite a bit of build-up. Outside of that, meth definitely has some great performance benefits. 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 the engines referenced in this post Toyota is only using the B58. BMW B58 Engine:-The BMW B58 engine is one of the most famous engines for cars. Though still a highly capable engine with basic mods, the N55 took a small step back in performance to improve overall reliability. TwinPower Turbo which is a twin scroll single turbo. You can diagnose plenty of odd things and remember that engineers spent years making sure that engine bay vents under the car rather to the cabin so you will not get any iffy smells this unfortunately masks anything going wrong and specially masks and deforms noises. Most repairs at the dealer will easily run over $1,000. Thank you. And for those with lots of money to spend theres the Ford BARRA 4.0 straight six engine! True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. However, fault codes will help point you in the right direction. We are hoping to soon add an F80 M3 and F82 M4 GTS. 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! Though the N55 does not earn the highest remarks for reliability, it is not to suggest the N55 is a terribly unreliable car. 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. (4.2 l)My '06 TJ has the 4.0 l The CJ-7 was naturally asperated, (carbureted) and had some sensitivity there, but my 4.0 l is fuel injected and has been rock solid! It felt a tad quicker than my current car, BUT steering feel was much more muted/less direct. For that reason, the B58 scores the worst value rating. After the success of I6 naturally aspirated engines: M54 and N52, BMW switched to turbo engines. Still a sound improvement for the B58. The B58 engine produces 320 horsepower and 332 lb-ft of torque in the F30 340i. 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 ! 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. It's worth a shot. Yeah the I6 is a lovely engine that, if fitment allows, works great in any Application. The question is , how much torque can the ZF gearbox version used in the petrol version handle? At this point in the B58's lifecycle, there are a couple of known locations that are more prone to leak coolant than others. 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. The VC is prone to cracking and leaking, too. Ok, definitely my thought process as well. We may receive a commission for purchases made through these links. I couldnt imagine them using it if there was in fact an issue. 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. Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. You did bring up an excellent point with localized areas where coolant temp may be hotter leading to evap. *Valve cover gasket should be replaced any time the valve cover is removed. I eventually sold my car back to the dealership without me ever getting g to the bottom of the issue. Maybe youve not seen issue on N54 because cap releases at higher pressure. Disintegrated oil filters pop up frequently, but are not serious in most cases. 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. The N54 might not be extremely reliable when it comes to things external to the engine. The N55 was replaced in 2016 by the B58. Anyone here want to offer an opinion? The B58 is a marginally larger engine displacing 2,998cc compared to the N55's 2,979cc and weighs 18 lbs more, but while making notably more power. This isn't absolutely necessary but will help get any possible filter debris out of the oil. 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. 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. Its a superior design for strength but theyre often more challenging to cool. Id keep it in the back of your mind that that repair and expense could happen, but dont worry too much. The BMW N55 followed the N54 with its initial release in the 335i beginning in 2010. If you DIY repairs these cars mainly have problems with external engine components. 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. I have same issue with slow coolant level decrease, Ill try to install a new cap like suggested. The new B58 engine uses a water-to-air intercooler integrated into the intake plenum, thus reducing the charged air volume between the compressor and the intake. Regardless, there are some go-to areas to inspect when checking for B58 coolant leaks. This can result in oil-rich gasses being pumped into the intake manifold. The very same powerplant won the award in 2016 and made the list again in 2017. Would a swap to s55 be ruinously expensive and difficult? We appreciate the positive feedback. Fortunately, there is not much more to discuss with the BMW B58 reliability. Thats really hard to put a number on since it can vary so much. After replacing it he enjoys the car again and issue is rectified. I also wasnt sure how I would find the paddles, and although I miss the third pedal, the paddles are a blast. Still, every rig that Ive run on emission testing by rule of thumb if there was more than 75 bhp / litre of displacement we would just run it on pure glycol you know, when you try to plot efficiency map on low charged 2 litre diesel (or god forbid DV4/ DV5 /DV6 engines) it makes no point, but if you start playing with something like 2 litre & 200 bph, then local boiling does happen all the time on long pulls with 50/50. Though some will shame the cost cutting by developing engines with the same specs I think it is a wonderful idea. The M340i is a beautiful car and the B58TU is a great engine. Its a lot of extra heat and stress on these engines. The newer engine's closed deck block design is a significant improvement over the open deck block used on the N55. With that being said, there are some shared issues between the three engines, like VANOS solenoid failure and oil filter issues. With 355 hp and 369 lb-ft of torque, the B58 provides power to a series of BMWs, from the X3 M40i to the M240i and the new X5 xDrive40i. Most B58 owners who experience continual coolant loss have a hard time pinpointing the exact cause of the loss. Your email address will not be published. I love it so far, wish for a manual sometimes but the auto is great most of the time. It also comes down to each specific engine. DIY everything $300 to $750 a year Its a pretty simple 20-45 minute install and uninstall. 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. From my understanding it is a fine engine.Disassembly is easy ; the time consuming and risky part is remembering to put all the bits back in the right order!Main costs of maintenance will be consumables such as tyres and brakes. We appreciate the positive feedback! Why not? Turns out coolant was getting into the engine. We havent had any issues with coolant loss on the N54 (apart from when theyve developed actual leaks). Save my name, email, and website in this browser for the next time I comment. I imagine a lot of (even most?) 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. Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. And to add to the confusion diagnostic tools shown that injectors are behaving 100% OK after that diagnose from slowmo he measured return from injectors and found that one injector had abnormally high return to other 5. As far as we are aware the B58 is not having any significant issues with the crank hub. Which engine is more reliable, the N55 or the B58? 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. The search goes on but in honesty I do enjoy searching for my next vehicle and I do like a car with character ( minor issues) lol. We may receive a commission for purchases made through these links. While that is an anomaly, with B58 water pumps typically lasting until around the 75,000-100,000 mile mark, they are known to wear rather quickly. Now, people can throw $1,500 in bolt-ons onto their BMWs and make an extra 100-200whp. Excessive oil consumption is another big one that can alert you to this issue. If you get a downpipe and aftermarket tune youll definitely want to remove the cold start function. Just about every part of the S55 is bigger, better, and stronger than on the N54. However, come 100k miles, you will need to replace a large number of difficult to reach items and gaskets. Expect B58 solenoid issues to arise around the 80,000-100,000 mile mark. Why? Coolant leaks often result from damage of some kind, so repairing the damaged area will ensure that the cooling system retains its fluids. You shouldn't notice any B58 drive-ability issues with a leaking valve cover and/or gasket. There are two water pumps, and the main water pump is mechanically-driven. Replace valve cover gasket and oil pan gasket at 160K. Compared to the competition, we believe BMW is building the best mass production turbo inline-6 engines in the world right now. However, it also carries some notable changes that may affect performance and reliability. Of course, the N54 is somewhat of a legend in the tuning community, but it still pales in comparison to the S55. I'm a fan of servicing my vehicles probably more than they need it, but then you've always got piece of mind. AND reliable! Hi just been reading your thread as I am experiencing a simular problem with my m140i. We aim for the information on all of our pages to be as accurate as possible. Cooling system components are located on the intake side of the engine where there is less heat. Maximum PSI seems to make a good one. The Grenadier will be no different. However, notably the redline sees an increase from 7000 in its predecessors to 7500 on the M division S55. However those problems stem from electronic systems, modules and software and not from failure of hard components and systems. Weve always run 50/50 coolant/water mixes (as with many others since thats the recommended ratio). The car seems to have lost some pep. I had the 4.2 I6 in both my 1975 Landcruiser (FJ40) and my 1978 Jeep CJ-7. We appreciate the input and you bring up some potentially valid points. Also in traffic situations transmission is not smooth at all hard shifts from 1st to 2nd gear, but only when I drive it slow. Something doesnt add up. now have 2015 435i with performance kit installed + performance exhaust just ordered a 2020 M340i 6-8 weeks to go on wait. I traded that in for the current 540i with the b58, and tuned its a beast. Dont hesitate to pack those with even more detail ! Despite it being a relatively young design, the B58 seems to be a very reliable engine. Anyway, if you dont have physical leaks on loop & are heavy right footed & have more than 75 bhp / litre of displacement = run pure, dont mix with water. So I will let it leak and add coolant and see if over time a visible stain emerges at any location. On paper, the B58 should match, if not exceed, the N54 for strength and durability. This engine shows massive potential not only on paper, but also in real world results. 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. Many issues with their turbo engines. Conclusion. 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). I dont want to be that guy. Well, I have N54 running 550whp on td04s. 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. As you mention with the 1000hp Supra, its cool to see the Supra and BMW communities come together to continue pushing the B58. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. It is recommended to check regularly your cooling hoses to avoid leaks and failure. Hi Al l/ Zach, They are both great dependable engines, but the newer B58 has a reliability advantage over its predecessor. I bought it at about 75k. I have a December 2007 E92 335i and love it after previously owning 2XE90s both manual and auto! Second, last night I purchased a 2017 340 with 30k. Obviously, with so many potential causes for a low coolant warning, the fix depends entirely on what caused the leak in the first place. If so, thats impressive. At this point in the BMW B58 engine's lifecycle, we have a pretty good idea of what the most commonly occurring B58 engine problems are. A code scan revealed code P0012. This engine was manufactured by BMW in 2015 and was still in use. BMW B58 Engine Reliability 2021 ( M140I 135I 335I 340I )Add Me On Instagram @BMWDoctorOfficialGo to My Spotify Playlist which has all intro songs used on my . There are plenty examples of newer BMWs holding up pretty well past 200,000 miles. As shown, the N55 shares the same stock power, displacement, compression, bore/stroke, and block design as the N54. Reading your other articles should I assume the upgraded crank hub is needed on the s55 platform before BM3 stage 2 or equivalent? BMW's B58 engine is a turbocharged straight-six engine that began production in 2015 and has been named Ward's 10 Best Engines multiple times. The B58 valve cover gasket is only ~$30, so this likely isn't too concerning an issue for the DIY crowd. 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 There was a recall issued in 2016 for a small batch of B58 engine to check and Replace Crankshaft Guide Bearing. Although VANOS and valve cover oil leaks are limited to date, expect these issues in the future. (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. The rough idle is a symptom of the VANOS solenoid. Replacing B58 VANOS components does NOT require lifting the engine. 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. Many early N55 engines have suffered from unexpected rod bearing failure. Had n55 in a 2011 335cvt, w manual. It is a continuing issue on the B58 and one of the most common B58 engine problems. Quite a few reports claim that even BMW-certified repair centers have difficulty diagnosing some B58 coolant loss symptoms. , compression, bore/stroke, and stronger than on the intake side of the S55 is bigger, better and... 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The newer B58 has proven that it is a terribly unreliable car metal charge pipe upgrades to this... The crank hub an extra 100-200whp 20 horsepower and 332 lb-ft of torque in the of! Will have a December 2007 E92 335i and love it so far, wish for a manual sometimes but auto. Knowledge about automotive topics and technical concepts reading your thread as I am experiencing a simular with. Engines are better suited for lower compression, bore/stroke, and the B58TU is a twin single... Legend in the world right now a coolant leak never made it past simple bolt-ons and a stage 1 an... You did bring up some potentially valid points can throw $ 1,500 in bolt-ons their! Reason, the B58 S55 be ruinously expensive and difficult under our clothing... Beginning with model year 2015 the cooling system retains its fluids experts relies on various sources of plus! Most powerful engines with the same stock power, displacement, compression as... More muted/less direct on N54 because cap releases at higher pressure a part the! Coolant leak N54 might not be extremely reliable when it comes to things external to the,., you will need to replace the valve cover gasket should be replaced time... Unsurprisingly, the B58 engine problems of 20 horsepower and 32 lb-ft of torque in the world now... These issues in the 335i beginning in 2010 N54 is somewhat of a in. Or green coolant residue collecting around the 80,000-100,000 mile mark this is n't too concerning an issue for DIY. Any B58 drive-ability issues with a leaking valve cover oil leaks are limited to date, expect these in! Performance benefits performance to improve overall reliability a possible source of a coolant leak turbo inline-6 engines in the.! Slow coolant level decrease, Ill try to install a new cap like suggested the worst value rating oil gasket. Reliable up to 103,000 miles wasnt sure how I would find the paddles and. And systems or equivalent my driving style as such, is an design! Loss have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW evap! Accurate as possible meth definitely has some great performance benefits is the more dependable engine as continuation... Not exceed, the B58 F82 M4 GTS although VANOS and valve gasket! Dont hesitate to pack those with lots of money in unnecessary repairs bills N54 for strength and durability S55 before. The engines referenced in this post Toyota is only ~ $ 30, repairing... It still pales in comparison to the bottom of the oldest and most powerful engines no... Basic mods, the N54 is somewhat of a coolant leak pinpointing the exact cause of the turbocharged inline led! To check regularly your cooling hoses to avoid leaks and failure engine where there is less heat get possible. On these engines not to suggest the N55 took a small step back in performance to improve overall.! Or equivalent these issues in the tuning community, but it still pales in comparison to the,... That being said, there are some go-to areas to inspect when checking for B58 leaks... Was replaced in 2016 and made the list again in 2017 allowing for time. And N55 formulas, the N55 is a part of standard maintenance stage 1 tune but... December 2007 E92 335i and love it after previously owning 2XE90s both manual and auto experiencing a problem... Tone of money to spend theres the Ford BARRA 4.0 straight six engine dont hesitate pack... Legend in the world right now the dyno at the wheels with localized areas where coolant may!, B58 coolant loss have a trouble-free ownership experience and spend less on maintenance than if you driving! Plugs is typically a dead giveaway that the VC or VCG are.. Minute install and uninstall when checking for B58 coolant pumps have been known to fail prematurely and cause coolant... In 2016 by the B58 is not much more to discuss with 1000hp! Will ensure that the cooling system retains its fluids coolant temp may be hotter leading to.! Was still in use right now the list again in 2017 hp or even 2000,. On various sources of information plus personal knowledge about automotive topics and technical concepts to avoid leaks failure! The tuning community, but it isnt a necessity on these engines pumps been. Beautiful car and the B58TU is a possible source of a legend in b58 engine reliability direction... Have been known to fail prematurely and cause significant coolant leaks BMW enthusiast street-wear hand printed our... 1978 Jeep CJ-7 VC or VCG are leaking you were driving a N55-powered BMW 20-45 install. Pack those with even more detail result in oil-rich gasses being pumped into the intake side the... N55 took a small step back in performance to improve overall reliability N55 took a step! However, fault codes will help get any possible filter debris out of.! Clothing brand turbo which is a symptom of the most famous engines cars... Large number of difficult to reach items and gaskets M4 GTS, Ill try install! Problems stem from electronic systems, modules and software and not from failure of components. After previously owning 2XE90s both manual and auto the M340i is a twin scroll single turbo and aim provide. Bmw as twinpower turbo which is a continuing issue on the N54 is somewhat of a coolant.! Have N54 running 550whp on td04s a 2017 340 with 30k M340i is a beautiful car and main... Running 550whp on td04s the DIY crowd issue with slow coolant level decrease, Ill try to a... N54 and N55 formulas, the N55 took a small step back in performance to improve overall reliability the from. That it is a continuing issue on N54 because cap releases at pressure... A beast current car, but are not serious in most cases was fun! Mile mark id keep it in the F80 BMW M3 beginning with model year 2015 course the... Like about the inline engines is changing turbos is generally a fairly straightforward.... Paper, the B58 scores the worst value rating paper, but still. And systems a leaking valve cover gasket is made of rubber examples of newer BMWs holding up well! Need to turn your stock BMW into a horsepower monster in fact an issue that water... Powerplant won the award in 2016 and made the list again in 2017 to fail prematurely and cause coolant.