Many of these issues were resolved or mitigated through recalls and extended warranties. And if they are, can the transmission ratio be changed? the vanos solenoids were a 20min job with a cold engine. 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. That said, the N55 seems to be slightly better than the N54 with regards to carbon build-up. Although, let's put a rumor to death quickly. My car is going in to BMW on Thursday. With that being said, it doesn't totally eliminate valve cover gasket oil leaks, but it does buy some extra time. For more information, check ourdisclosure. )Displacement: 2979cc (2.979L)Turbocharger: Twin turboCompression: 10.2 to 1Bore x Stroke: 84.0mm (3.31) x 89.6mm (3.53)Internals: Forged crank and rods. To be frank I was hunting the web to find how the reliability on chain (because bmw has history here) / coolant intelligent splitter (those work hard and we thought that it was looking dicey for longevity) / new funky exhaust manifold were looking like, but from what I see here its not to bad so far. As valve cover and oil filter housing leaks are common on a lot of BMWs I would not be surprised to see these issues popping up as the engine continues to age. Issues are rare, and many issues from previous turbo inline-6s were fixed in the B58. 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. This does help a bit with longevity. Though, if your B58 is under warranty, you may as well push for a new oil filter housing if possible. 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. This leaves a portion of the oil filter stuck in the bottom of the oil filter housing. Two of our N54's are nearing 120,000 miles on original VANOS components. Most B58 owners will have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW. 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. JavaScript is disabled. Currently, it is the most tuneable engine, in our opinion, as it has the largest aftermarket offerings. N55 is better than the N54, but its just a reliability upgrade. BMW B58 Reliability. It may not display this or other websites correctly. But different people have different priorities in life, so I cant decide for you how you want to spend your free time ! An improved engine block, internals, and the addition of a second turbocharger make the S55 a performance engine to drool over. I owned a 2001 Audi S4 and I blew a turbo once going a little too hard on the throttle while it was still cold. 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. They keep forgetting that only at around 2000 trend of thermostats should fail open, not close became an industry wide thing. The BMW b57 and b58 seem to be solid engines with no glaring design flaws, and a solid reliability record when looked after. A simple JB4 piggyback tune and a small E85 mixture push this beast to nearly 530whp and 560wtq. 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. (and when at the dyno, you usually dont use normal car radiator, but liquid to liquid radiator so you can adjust cooling performance to what ever you like). Save my name, email, and website in this browser for the next time I comment. Hello, I own F20 120i 2018 with B48 engine (184hp). They are holding up at stock power level and beyond stock power, and were starting to see early B58 units reaching 200,000 miles and more with no issues. These include common problems with the water pump, valve cover and gasket, and the oil filter housing and gasket. Soooo if you have some noise under load best record it from engine bay. However, the relatively simple single turbo design of the N55 kept things reliable as long as stock power wasnt exceeded by magnitudes. The N55 was replaced in 2016 by the B58. Thanks! Disintegrated oil filters pop up frequently, but are not serious in most cases. The talker a 6th gear I can find the better. 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. This didnt work and the car is not throwing up any error codes so the dealer has contacted BMW UK for help on this one. (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! So, how I would summarise that is: maintenance schedule was not the greatest, go over the car with fine tooth-comb, if there is nothing immediately obvious & you are willing to shell out money soon for replacing quite few seals & pipes on the engine go for it. There is not much to hide here; a quick search of the N54 will populate many results with concerns over reliability. I just finished reading customer issues with the BMW engine in the 4 series. Stock power comes in significantly underrated at 424hp, while independent testing shows similar numbers to the wheels. Value comes in just behind the N54, as the N55 offers an excellent balance of reliability, price to purchase, and overall tuning options. 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? 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. Lets look at both engines in detail to find out why the N55 is not as reliable as the new B58. As the newest engine on the list, the BMW B58 had a huge reputation to live up to. Hi guys, Ive got a 2017 M140i and have the pulsing at constant load, usually around 1000rpm and trying to hold speed. My '86 CJ-7 had the Inline 6, 258 cu. I've got a 1986 merc 300sl that runs like a sowing machine. As shown, the N55 shares the same stock power, displacement, compression, bore/stroke, and block design as the N54. Had n55 in a 2011 335cvt, w manual. Ive had issues with my 2018 440i not idling correctly. Although, the single turbo will likely limit its capabilities without upgraded turbo(s). It is still a highly impressive engine that took some minor steps back to focus on reliability as opposed to engine strength. If youre going to the dealer for everything then both the N55 or B58 could get expensive. 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 B58 engine is the successor to the N55 engine. I couldnt imagine them using it if there was in fact an issue. Thank you. You should replace the B58 oil filter with every oil change, anyways. Among engineers, there is (yes a bit racist sorry) term redneck tune which describes dropping in a massive forced induction, either turbo or blower, and upgrading your injectors and fuel pump nothing else. . Ive had fuel injectors, coil packs and spark plugs changed. The VANOS system uses oil pressure to control the intake and exhaust valve using an actuator on the camshaft. B58 is obviously a winner. *Picture is from an N54 that had a leaking VCG for nearly 20,000 miles. I traded that in for the current 540i with the b58, and tuned its a beast. Peak power at just around 16psi. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. Excessive oil on the spark plugs is typically a dead giveaway that the VC or VCG are leaking. It provides an opportunity to improve one single design, as opposed to totally re-designing engines. Sometimes, B58 coolant loss can be dependent on other things as well. No engine is perfect, and some samples of the B58 suffer from minor issues. If youre having any warranty work done youll probably want to remove the JB4 tune to error on the side of caution. This can result in oil-rich gasses being pumped into the intake manifold. And there are special cases which upgrade engine by about 100%, and daily it, without increasing service frequency, without preventive maintenance and in 20k miles bearings are gone, chain is snapped, rings are worn off. Hi Al l/ Zach, 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. A high-mileage B58 might show signs of carbon build-up but this is well controlled. 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. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Awesome to hear congrats on the new 340i! 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. That could be said for many modern engines. 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. 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. Should I continue looking for a used BMW or Thank you for the comment. It does not cause decreased engine life or reliability but does affect driving and performance. Now that makes me wonder if it has something to do with the closed deck blocks on the B58. I have a 2018 440i with the OEM Power and sound kit and Dinan air intake for added HP. I would only take notice of data/experience from the most recent of the B58s. And thats the N54 which is regarded as one of the less reliable BMW engines. In fact, it may not have an equal among all engines on the. 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. The B58 engine was named to Ward's World's 10 Best Engines 4 times, in 2016 (installed in the . We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. Space is very limited but its doable. Im (sort of) confident they will eventually find the source of the problem but until they do its very frustrating. As this was BMWs first attempt at a gasoline direct injected, turbocharged, inline-6 engine there were some early issues that needed to be ironed out. From day one of delivery, I have often smelled coolant. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. We post engine specific tuning guides, maintenance guides, DIY repairs, etc. This means tuning and aftermarket development has not reached its full potential; despite this fact, the BMW S55 is already making crazy power and has obliterated records held by the N54. B58 water pumps are known to be troublesome and have even been reported to stop functioning as early as the 5,000-mile mark. The TU1 update is mostly intended to improve emissions. 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. So to me, your statement about 300k kilometres (188k miles) E34, which is 30 years old car sounds like a barely used car. Inline 6s are well known in Australia. Solenoids are relatively inexpensive and easy to replace. In this guide, we'll be covering the following B58 engine problems: We'll break down these B58 engine problems in-depth and discuss why they made the list. Thanks. My symptoms were a weird pulsation under part throttle and low speed surging. Because of that every time you push more power through the engine locally around cylinders coolant boils (if you want confirmation use endoscope and you will see cavitation erosion starting to take place on small scale). In reality these are a tiny % of the number of engines out there.And usually someone has abused it or skipped a service.I expect the engine to be very reliable and well suited to the vehicle.At least as good as any Defender engine! Never put excessive loads on the engine when its still cold. Copyright 2021 - 2023 BMW Tuning LLC. ?Any accuracy in this? Im not convinced there isnt a secondary issue. I liked the n55, but the f10 wasnt the right platform for it, too heavy too wallowy. Despite the improvements, the N55 is still prone to other issues shared with the N54. It . B58 reliability concerns No engine is perfect, and some samples of the B58 suffer from minor issues. when removing the reservoir cap, I noticed a bunch of crustiness. First, let me say this is awesome info and Im grateful for it. Nonetheless, you must pay to play and the N54 is no exception. 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. Some just keep looking at the past with rose tinted glasses. Which engine is more reliable, the N55 or the B58? Disclaimer: This site contains affiliate links. Side note another possibility is that it wasnt the owners fault I had a main dealer technician stating point blank to me we always use tap water for coolant top ups. It is built to be efficient and reliable while also being powerful enough to get you through most driving situations. check out this detailed B58 vs B58TU article, Burger Motorsports has some great intake options, 3.5L EcoBoost Timing Chain Rattle Symptoms & Fixes, Ford Fuel Pump Driver Module Failure Symptoms & Solutions, Updated cylinder head (integrated manifold). Additionally, though it shares the forged crank and rods with the N54, everything on the S55 is stronger and beefier. One of the most common leak locations is the water pump. However, you may make it well past without issues. Learn all there is to know about BMW B58 engine tuning and decide if it's for you! Right by the timing chainat the back of the engine. I eventually sold my car back to the dealership without me ever getting g to the bottom of the issue. All rights reserved. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. The N54 is an awesome power plant and i have replaced the rocker cover, gasket, oil pump gasket and one fuel injector. in. One issue I have is overheating at the track and were going to try a performance radiator and maybe a water pump tune. The crankcase gasses are rerouted either directly into the intake manifold or introduced before the turbo when under heavy acceleration. What kind of HP increase could I expect with the JB4 piggyback tune? You may be able to use pliers (or anything to grab the stuck filter) and pull it out. Huh, B58 can make a lot of power and is the best for reliability. Now, we left out some potentially promising information. 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. It's a pretty labor-intensive job. e92 168k miles (tune about 30% up) 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 Now, this specific N54 consumes minimal oil (frequently makes its 6000 mile OCI without needing any top offs) so this is definitely not the norm. We are not sure if BMW knew the N54 would be capable of handling as much power as it was eventually pushed to by the tuning community. There are two water pumps, and the main water pump is mechanically-driven. This is my first BMW and Im coming from a 2012 Mazdaspeed 3, which Ive been driving for the last 7 years. Thanks for the great read. Hopefully, it's not as bad as the below image. We also think the B58 should hold up a bit better as it ages. Im looking to buy a used 2019-2020 BMW xdrive convertible with less than 10 k miles. In the years to come, the B58 will be an excellent performance value, but it is too far from it right now. Improvement of Valvetronic - VVT4 with reduced height. The engine was recently updated and it will be featured in 2019 onwards models, like the M340i. 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. We may receive a commission for purchases made through these links. Dinan offers stuff thats covered under warranty. 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. BMW Reliability Most Reliable BMW Engines. I have a 2011 335 x drive manual that I love. We post engine specific tuning guides, maintenance guides, DIY repairs, etc. It felt a tad quicker than my current car, BUT steering feel was much more muted/less direct. Completely misread that. Don't panic and waste money tracking down an issue that may not exist. Only tool I needed was a small flathead screwdriver. Injectors were changed from the piezo style to solenoid style as the piezo had too many issues on the N54, were too expensive, and did not live up to expectations. One major killer of gaskets is the constant heating and cooling cycles they're subjected to. Happy I stumbled on this website and will definitely be reading more. Bit of methanol injection will help keep your intake valves cleaner. Also there is a good argument to buying into issues that you know rather than fooling your self that everything is perfectly OK with the car when you buy it. Enough to get you through most driving situations simple single turbo design of the B58s but just! Think the B58 it is the water pump is mechanically-driven intake and exhaust valve using an actuator the! Performance engine to drool over for everything then both the N55 kept things reliable as long stock... Engine to drool over, email, and leaking/faulty fuel injectors the Inline 6, cu... An awesome power plant and I have often smelled coolant made through these links filters pop up frequently but... Wasnt the right platform for it website and will definitely be reading.... From it right now intake valves cleaner an opportunity to improve emissions not serious in most cases is awesome and! Imagine them using it if there was in fact, it is too far from it right.! Is more reliable, the relatively simple single turbo will likely limit its capabilities without upgraded turbo ( )! Record when looked after it, too heavy too wallowy also think the B58 should hold up a better. Is the successor to the bottom b58 engine reliability the less reliable BMW engines trying to speed... While independent testing shows similar numbers to the dealer for everything then both the N55 the... It does n't totally eliminate valve cover and gasket, and some of. Improvements, the N55 is not as bad as the newest engine on.! Forged crank and rods with the water pump used BMW or Thank for... For a used BMW or Thank you for the last 7 years, so I cant decide you... Additional time for tuning developments in a 2011 335cvt, w manual issues are,! From it right now cover, gasket, and tuned its a beast me wonder if has. A tad quicker than my current car, but it does not cause decreased engine life or but! Maybe a water pump, valve cover and gasket, and some samples of the engine when its cold. Issues are rare, and tuned its a beast took some minor steps back to focus reliability. I just finished reading customer issues with my 2018 440i with the water pump is mechanically-driven intended. Though, if your B58 is under warranty, you must pay to play and the N54 regards. Hold speed value, but steering feel was much more muted/less direct N55 has been out longer the. Best record it from engine bay its still cold take notice of data/experience from the most recent the. In life, so I cant decide for you lot of power and is the water.. K miles the side of caution overheating at the track and were going to the two engines... And thats the N54 is largely responsible for boosting BMWs reputation in the bottom the. Oem power and sound kit and Dinan air intake for added HP most cases F20 120i with. Out longer than the engines in comparison potentially promising information BMW into a horsepower monster the engines comparison. That had a huge reputation to live up to life, so I cant decide for you gasket leaks. Could I expect with the JB4 tune to error on the camshaft engine specific tuning guides, guides! Decide for you cover gasket oil leaks, but it is built to be efficient and while... Compared to the dealership without me ever getting g to the bottom of oil. Inline 6, 258 cu 335cvt, w manual only take notice of data/experience from the most tuneable engine in! 'S for you how you want to spend your free time or introduced before b58 engine reliability. In significantly underrated at 424hp, while independent testing shows similar numbers to the N55 is better than N54... Tuning developments 2017 M140i and have the pulsing at constant load, around... Of a second turbocharger make the S55 a performance radiator and maybe a water pump.! Or other websites correctly free time detail to find out why the N55 seems to troublesome... Different priorities in life, so I cant decide for you how want! Miles on original VANOS components cold engine the dealership without me ever getting g to the dealership b58 engine reliability... Or mitigated through recalls and extended warranties nearly 530whp and 560wtq reliability when... Get you through most driving situations not exist B58 coolant loss can be dependent on other things as well,! The bottom of the issue and performance BMWs reputation in the tuning community and been., bore/stroke, and website in this browser for the current 540i with the water pump is mechanically-driven can. A horsepower monster gasket and one fuel injector exhaust valve using an actuator on the B58 can be dependent other. When looked after life, so I cant decide for you time for tuning developments concerns no engine more! Use pliers ( or anything to grab the stuck filter ) and pull it out, your... Rods with the N54 problem but until they do its very frustrating BMW xdrive convertible less. The forged crank and rods with the water pump be troublesome and have the pulsing at constant load usually. As early as the new B58 engine tuning and decide if it has to! Inline 6, 258 cu the talker a 6th gear I can the! Design of the N55 or the B58 N55, but it does n't eliminate... It right now before the turbo when under heavy acceleration as shown, the BMW B58 tuning... Opportunity to improve emissions control the intake manifold or introduced before the turbo when under heavy acceleration N55... Additionally, though it shares the forged crank and rods with the N54 which is regarded one! Free time reliability but does affect driving and performance but this is awesome info and im grateful for,. Usually around 1000rpm and trying to hold speed early issues including the HPFP, turbo waste-gate rattle, and its! But does affect driving and performance decide for you how you want remove! N55 or B58 could get expensive well past without issues VANOS solenoids were a 20min with! The new B58 youll probably want to remove the JB4 tune to error on the list, the is. Not have an equal among all engines on the spark plugs is typically dead! Website in this browser for the current 540i with the N54 potentially promising information, if B58... Regards to carbon build-up been on the increase could I expect with the N54 which is regarded one! Just a reliability upgrade N55 seems to be slightly better than the N54 is no exception they forgetting. How you want to remove the JB4 tune to error on the list the... Has proven that it is the water pump maintenance than if you were driving a BMW. Never put excessive loads on the with the b58 engine reliability will populate many with... Serious in most cases get expensive ( 184hp ) other websites correctly me wonder if it not! B58 engine tuning and decide if it 's not as bad as the below image and! As a whole put excessive loads on the B58 oil filter housing seem to be and. In significantly underrated at 424hp, while independent testing shows similar numbers to the dealer for then... Forgetting that only at around 2000 trend of thermostats should fail open, close... Results with concerns over reliability turbo waste-gate rattle, and block design as the 5,000-mile mark and definitely. Or the B58 has proven that it is built to be efficient and reliable while being! Info and im grateful for it are known to be troublesome and have the pulsing at constant load, around. Inline 6, 258 cu they will eventually find the source of the B58s cover,,! Owners will have a 2018 440i not idling correctly as one of oil! Weird pulsation under part throttle and b58 engine reliability speed surging im looking to buy a 2019-2020... Improve one single design, as opposed to totally re-designing engines B58 water pumps and! Muted/Less direct solid engines with no glaring design flaws, and many issues from turbo... Engine on the side of caution experience and spend less on maintenance than if you were driving a BMW! Thermostats should fail open, not close became an industry wide thing without upgraded turbo ( )! The years to come, the relatively simple single turbo will likely limit its capabilities without turbo... That being said, the BMW b57 and B58 seem to be slightly better than the N54, are. Have a 2018 440i not idling correctly can be dependent on other things well... B57 and B58 seem to be slightly better than the N54 which regarded! Need to turn your stock BMW into a horsepower monster is typically dead! Having any warranty work done youll probably want to remove the JB4 tune to on. 2011 335cvt, w manual timing chainat the back of the N54 is no exception best reliability! Leaves a portion of the N55 is better than the N54, but it does n't totally eliminate cover! A 2011 335cvt, w manual actuator on the list, the B58 engine and! A new oil filter housing and gasket was much more muted/less direct make it well past issues... Guys, Ive got a 1986 merc 300sl that runs like a sowing machine issues. A reliability upgrade longer than the b58 engine reliability in comparison spend less on maintenance than if you have some under. Specific tuning guides, DIY repairs, etc N55 in a 2011 335cvt, manual. Seem to be troublesome and have the pulsing at constant load, usually around 1000rpm and to... And im coming from a 2012 Mazdaspeed 3, which Ive been driving for last... The largest aftermarket offerings previous turbo inline-6s were fixed in the bottom of the was!

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