*Valve cover gasket should be replaced any time the valve cover is removed. Well, like all of the modern, turbo BMW engines, the valve cover gasket is made of rubber. No matter which of these BMW engines you choose to make your own you cannot go wrong, in our minds. 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. There are not endless cases of waste-gate rattle, HPFP failures, or fuel injector failures, like with the N54. Reliability + performance. This local boiling increases coolant pressure for short period of time and causes steam (or wort case coolant) evacuation through safety dump valve (pressure cap on radiator / coolant tank depending on model). Changed injectors, spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running like a dream. B58 reliability concerns No engine is perfect, and some samples of the B58 suffer from minor issues. I have a 2011 535i M Sport with 200k miles. The N55 has proven to be a reliable engine but is edged out by the B58. Has it happened to someone else? Compared to the competition, we believe BMW is building the best mass production turbo inline-6 engines in the world right now. Guess where the VANOS components reside? Ram/Jeep had plans to come out with a turbo powered I6 to replace the 5.7 Hemi, but nothing seems to have come from that. [youtube=https://www.youtube.com/watch?v=WzgzSnYDvz4&w=660&h=372]. As mentioned, they are located at the back of the engine making access a bit difficult. Nonetheless, the B58 off to an impressive start in both performance and reliability. The engine room is simply too full with views inaccessible. 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. BMW's B58 engine also provides a great balance of fuel economy and reliability. Theres a lot of speculation and potential biased claims as far as I can tell so it would be nice to hear an unbiased opinion on this matter. However, it's important to note this is not an exhaustive list of what may go wrong with the B58. The B58 timing chain was moved to the rear of the engine. With the extensive list of common problems, it is fair to say the BMW N54 is not cheap to own or maintain. The N54 is an awesome power plant and i have replaced the rocker cover, gasket, oil pump gasket and one fuel injector. Only tool I needed was a small flathead screwdriver. Cool build but completely impractical for staged kits, but just cool to see anyway. Saying that, my 435i when I got it actually had something that looked like mostly water with some blue tint to it which when you put it in between your fingers didnt even feel like it would provide much of lubrication which means previous owner did just garden hose top-ups. But sometimes, my engine just doesnt want to start. A fair few people with the same model and engine are experiencing this in Australia. All rights reserved. Was stock. All BMW petrol engines past n54 run above 100C in normal operation when you press the fun pedal, the coolant temp will rise a bit but locally on cylinder slews it can reach 160 C easily. e90 200k miles. Possible causes of spun bearings include running the engine hard on cold oil, low oil pressure, high G-force cornering, and manufacturing defects. Im not concerned about the purchase price but Im concerned about reliability of the BMW engine. The following table compares the technical data for both engines. BMWs B58 and S55 engines are newer, so more issues may pop up down the road. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. The only real solution here is to replace the B58 water pump with a new or refurbished unit. The very same powerplant won the award in 2016 and made the list again in 2017. Cooling system components are located on the intake side of the engine where there is less heat. This helps with the length of the connector cable. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. 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. 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. Did BMW live up to that reputation? ZF also builds some awesome transmissions that definitely pair well with these cars. Land Rover had years of snapped crankshafts on the diesel Disco 4's, timing chain and plastic coolant components grenading engines for the petrol ones. Reading your other articles should I assume the upgraded crank hub is needed on the s55 platform before BM3 stage 2 or equivalent? However, the N54 still has frequent water pump failures, valve cover/gasket oil leaks, oil filter housing leaks, among several other common issues. It cleaned up ignition timing a little bit, too. Hi Wayne, My 2019 m140 could be a misleading statement, because last production was around Oct 2018. This is where the B58's heat encapsulation system may come into play. Issues are rare, and many issues from previous turbo inline-6s were fixed in the B58. Bm3 offers some great tunes, and I think youll be happy with the move over to bootmod. Of course, we are biased towards BMWs here at BMWtuning.co, but we fell in love with these modern turbo BMW engines for a reason. Our team of BMW experts relies on various sources of information plus personal knowledge about automotive topics and technical concepts. Do you want to get more excitement out of your B58-powered BMW? It says a lot that Toyota opted to use the B58 in a model that made them known for building a beautiful engine in the 2jz. Cast pistons.Block Design: Closed DeckRedline: 7000. Disclaimer: This site contains affiliate links. Most repairs at the dealer will easily run over $1,000. This applies to coolant hoses and coolant connecting flanges. I own 2 1960s Benzes ; the inline 6 is the same basic unit as used in the Unimogs!Tough as nails and likes to rev. Much better when you consider you get the full package in the M3, and the M3 will hold its value better. The power meter can be seen from the head unit as I am able to activate it by coding. Fortunately, VANOS issues on modern turbo BMW engines are often confined to the VANOS solenoids. it now has 125,000km on the clock and is stock 300HP. Due to its age, the N54 is generally cheaper to purchase and offers the best value when comparing the cost to purchase, and the ability to tune the engine. Smoke from the valve cover area is common if the leak is bad enough. When compared head-to-head, the B58 has shown to have less issues than the N55. I couldnt imagine them using it if there was in fact an issue. Improvement of Valvetronic - VVT4 with reduced height. 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. Change places of where your camera is so you can better locate it etc. Ok, definitely my thought process as well. 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. I imagine a lot of (even most?) Im new to all of this. It's reasonable to assume that there have been generational improvements in durability and reliability over the N54 and the N55. However, it's fair to chalk up minor coolant loss to being natural. Now I still experience a bit of coolant loss, but much, much less. I live in a cold climate, so the whole heat encapsulation thing is really nice. Excessive oil consumption is another big one that can alert you to this issue. The B58 might be even more reliable than the N52 and the M54, but only time will tell. Consequently, I just ordered the BootMod3, which should be installed next week. 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. This increases performance by. With that said, even on a short test drive I could not believe the smooth power delivery of the B58. An improved engine block, internals, and the addition of a second turbocharger make the S55 a performance engine to drool over. Just purchased a 2021 M340. Further, compared to the N54s forged internals, the N55 features slightly weaker internal components, though the cast parts are still high quality and only become a concern well above 500whp. 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! However, a couple quick notes that are imperative to keep in mind: 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. That was an expensive and painful lesson to learn, as that car required pulling the motor to change the turbos. A handful of early production B58's experience issues with the crankshaft guide bearing. Replace valve cover gasket and oil pan gasket at 160K. 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. Injectors are getting loud again at 200k so its time to replace them. With a built motor, the S55 has been pushed to 1150WHP, and surely we will see more impressive numbers as the engine sees further tuning and aftermarket development. 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 Disintegrated oil filters pop up frequently, but are not serious in most cases. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. The B58 is also more fuel efficient than the N54, with an EPA rating of 26 mpg combined compared to the N54's 23 mpg combined. You are using an out of date browser. You can say we are somewhat N54 fanatics. So, we've got a bit of a headache here. And thats the N54 which is regarded as one of the less reliable BMW engines. However, there are numerous examples of the N54 holding 500-600+whp even at 200,000+ miles. However, water is much better at carrying heat and actually cooling the engine. 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. Your comments are welcomed. After numerous visits to my local bmw dealer, it got a new engine. In compared to its predecessor, the B58 engine provides more dependability and strength. 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? 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). The most common cause of B58 OFH gaskets failing is replacing the factory unit with an aftermarket solution. Same with the N54 and E9x chassis. All things considered, the N55 was still an improvement over the N54 in terms of reliability. 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. My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. This isn't absolutely necessary but will help get any possible filter debris out of the oil. 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. The B58 has proven to be the most reliable modern BMW engine, perhaps as reliable as the naturally-aspirated N52. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. It's another story if there is a visible leak(s), rapid coolant loss, or coolant is mixing with oil. Once removed there is no way for BMW to tell the car was ever tuned. Due to the fact that piston rings do not seal the gap between the combustion chamber and crankcase, air and other compressed gas seep through the piston rings and into the crankcase. Most wont have an issue and we truly believe its something thats been blown out of proportion. Why? The BMW N55 followed the N54 with its initial release in the 335i beginning in 2010. Acnam Infotech, BMW Tuning - BMW Performance & Tuning Guides, News, Videos. Washed my hands with it and looking forward to my next car (not BMW). Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. ps. Other common problems with similar symptoms include worn or faulty ignition coils, spark plugs, and injectors. Natural coolant loss on BMW engines is common problem caused by mysconception of what coolant chemistry is. 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. They keep forgetting that only at around 2000 trend of thermostats should fail open, not close became an industry wide thing. Our goal is to provide you with accurate information about BMW cars, engines, and up-to-date tuning guides. ps. This engine was manufactured by BMW in 2015 and was still in use. I have the same problem, in a 2017 bmw m240i, when I give it a spin and the vehicle is hot it sounds like it has a supercharger, or something that sounds like it doesnt match the engine noise, then you release gas and it disappears, Sounds like its the electric water/coolant pump for the turbo hot side maybe kicking in as under extreme load/stress. Next stop replace control arms on front and rear, along with shock mounts front and rear she will be running smooth as new. Its already a solid transmission as is, but the XHP transmission flash really takes things to the next level. BMW replacing whole engine with a new one. Unsurprisingly, the success of the turbocharged inline 6 led to its introduction in the F80 BMW M3 beginning with model year 2015. You may notice burning oil smells in the cabin. Reliability scores the highest marks compared to the N54, N55, and S55. I replaced the coolant cap, but it did fix the problem, in addition; I sent an oil sample for analysis, but no coolant present in oil sample. One thing BMW knew for sure, though, is the N55 needed to provide better reliability. Despite the improvements, the N55 is still prone to other issues shared with the N54. Whether or not Toyota identified the crank-hub as a potential weakness and re-designed it would just be a guess. The Grenadier will be no different. One of the most common leak locations is the water pump. However, the M340i already comes with quite a bit more power than the standard non-M 340i models. 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. Nonetheless, you must pay to play and the N54 is no exception. These BMW turbo sixes are nothing to snarl at; all are able to produce massive power numbers with a tune and basic bolt-ons. Relatively speaking, yes. Leave a comment and let us know. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. Would a swap to s55 be ruinously expensive and difficult? Anyone here want to offer an opinion? There was a recall issued in 2016 for a small batch of B58 engine to check and Replace Crankshaft Guide Bearing. Solenoids don't usually fail instantly, but rather become less effective with time and age. Right by the timing chainat the back of the engine. The B58 engine is the successor to the N55 engine. It is still a highly impressive engine that took some minor steps back to focus on reliability as opposed to engine strength. We are seeing a bit of a resurgence in the I6 recently, now mostly forced induction. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. The BMW B58 engine can handle around 600-650whp and 550-600wtq on the stock block and internals. BMW replaced it under warranty as one would expect. You can say we are somewhat N54 fanatics. What I like about the inline engines is changing turbos is generally a fairly straightforward job. Although not the strongest engine on paper, the N54 shattered the expectations of most as it continued to eat up everything thrown at it and seemingly beg for more. Thanks! Which engine is more reliable, the N55 or the B58? Could you give me some advice about this problem? This is a misconception. Currently stock on stage 1. Turns out coolant was getting into the engine. hopefully BMW will sort this out. Though some will shame the cost cutting by developing engines with the same specs I think it is a wonderful idea. I have a 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles. I would advise stuffing a towel behind the engine to catch a retainer clip if one pops off (but a $2 spare just in case). Although, VANOS work can be done without lifting the engine. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Not an ideal strategy, but at this point Im not ready to let dealership mechanics to tear this car apart. And if they are, can the transmission ratio be changed? 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. Hi All I track it and the engine has been holding up very well. . Thank you. The internals are similar, however, the S55 benefits from advanced materials sprayed on the cylinder walls and pistons. After all, the stock engine is rated at 300hp and BMW is not necessarily designing the engine with the idea of more than doubling the power. Food for thought: when pushing max power through engine at max rpm, coolant can pass through the loop many times per second, yet temps are not rising with 10C / 0,1 second why ? Any of the engines mentioned in this article will experience carbon build-up. There is one turbo with two scrolls feeding the single turbocharger. However, there are solid crank hub upgrades that should be considered when pushing the limits. With the B58 being a newer engine thats likely going to be the less expensive option to maintain. Regardless, the B58 is working up to be a reliable engine in its young career. A high-mileage B58 might show signs of carbon build-up but this is well controlled. 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. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. 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. 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. Thanks! Two of our N54's are nearing 120,000 miles on original VANOS components. It does not cause decreased engine life or reliability but does affect driving and performance. We did not include that as we do not consider carbon build-up an issue. It is a turbocharged straight-six engine. The engine was a little lumpy at times when idling and perhaps an occasional hint when accelerating. F11 151k miles (now only tuned by 30%, in the past was tuned onev 40%) Before some people will get but hurt and start flame war I dont hate on rednecks. Its a pretty simple 20-45 minute install and uninstall. There are some guides on youtube and the bimmer forums with part numbers. So much so that I'd prefer it over the N55. 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. Hi Adam, Thanks for the information. I never owned an N54, but my friends 2007 335i was nice to drive, but had issues. What are your thoughts and experience with the B58? However, from past engines, we know VANOS solenoids are a common failure/maintenance item. To find out more, read our Privacy Policy. Even more so after reading so many comments here where almost new cars had to change engines, Seriously dude, I think you might be overreacting 300k is nothing. B58 is reliable, bulletproof and can handle hella boost on stock block. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. Hi the B58 is not the same engine as M4 M4 is S55. ansolutely thrilled. The closed deck block is huge, but the N54 never really had issues with the open deck design. perhaps look for a used Audi 4 wheel drive convertible.
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