Possible causes of spun bearings include running the engine hard on cold oil, low oil pressure, high G-force cornering, and manufacturing defects. Thank you. It basically has a more aggressive tune from the factory. 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. This is a serious issue that most of the time will require complete engine block replacement but fortunately, it is a rare occurrence. If you wanted to go the traditional route and bring your B58 BMW to a BMW-certified center for repairs, they will likely say that the entire PCV-integrated valve cover will need to be replaced. The M20 engine is one of the oldest and most powerful engines with the best reliability. Our site is dedicated to all things BMW Tuning related. We also think the B58 should hold up a bit better as it ages. Nonetheless, you must pay to play and the N54 is no exception. 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?. 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. 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. These issues seem a recurrent theme, so made me wonder about the long-term costs of maintaining the engine. 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. Any input apreciated. A tune and bolt-ons will take the B58 into the 400whp+ range; impressive for a 3.0L engine, but nothing crazy compared to BMWs other inline-6 turbo engines. Im looking for my first sports car and BMWs seem very nice. Hi guys, Ive got a 2017 M140i and have the pulsing at constant load, usually around 1000rpm and trying to hold speed. I had the 4.2 I6 in both my 1975 Landcruiser (FJ40) and my 1978 Jeep CJ-7. Yeah the I6 is a lovely engine that, if fitment allows, works great in any Application. The B58 is more reliable than the N55. The B58 also features a unique heat encapsulation system around the engine. Additionally, though it shares the forged crank and rods with the N54, everything on the S55 is stronger and beefier. Smoke from the valve cover area is common if the leak is bad enough. Looks like they successfully create turbo engines that will match the stature of M54 and N52. Just purchased a 2021 M340. This is a misconception. It is a turbocharged straight-six engine. Hello, I own F20 120i 2018 with B48 engine (184hp). 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. 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 ! Awesome to hear congrats on the new 340i! Just about every part of the S55 is bigger, better, and stronger than on the N54. Your email address will not be published. This engine was manufactured by BMW in 2015 and was still in use. what it was please. 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. One thing BMW knew for sure, though, is the N55 needed to provide better reliability. One of our N54s went 113,000 miles before its first walnut blast. Developed & Maintained by Ever since BMW released the VANOS system in 1992 this has been a common problem and maintenance item. Completely misread that. 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. 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. Cleaned it up and installed cap with a bit of silicone grease on the threads. Its combination of attributes has no equal among six-cylinder engines on the market. This does help a bit with longevity. So, we've got a bit of a headache here. Space is very limited but its doable. You may notice burning oil smells in the cabin. Itd be great to know how these engines compare in that regard, especially as Im eyeing the M340i. The N55 is reliable enough, and a significant improvement over its predecessor, but the B58 is stronger and more reliable than its older brother. 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. 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. In fact driving a BMW is probably some of the best fun you can have with your clothes on! Ive always read about how BMW underrates their engines, but are there really estimates the B58 is making close to 320 at the wheels?! TuningPro.co is owned and operated by 8020 Media. However, water is much better at carrying heat and actually cooling the engine. I have a 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles. Hi the B58 is not the same engine as M4 M4 is S55. Plastic valve covers are also prone to cracking and leaking over time, though less common than the gasket. 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. (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). Appreciate any thoughts! VANOS solenoids may be considered a normal wear and tear item. The B58 oil filter is prone to shearing at the bottom. Are both available in RWD with manual transmission? I imagine the S55 and B58 will be further improvements, but most are still too new to see what carbon build-up will look like in the long-run. Hi Adam, Thanks for the information. 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. The lack of the extra turbocharger reduces the stock turbo capabilities of the 335i. Hi mate. Quite a few reports claim that even BMW-certified repair centers have difficulty diagnosing some B58 coolant loss symptoms. Im not convinced there isnt a secondary issue. Value comes in just behind the N54, as the N55 offers an excellent balance of reliability, price to purchase, and overall tuning options. Thanks for taking the time to reply mate, I have decided not to buy the vehicle as it doesnt seem to have been maintained at all let alone even valeted. Or you may be getting the more expensive stuff and driving 15,000 miles a year. A tune and bolt-ons will take the B58 into the 400whp+ range; outstanding for a 3.0 L engine, but nothing insane compared to BMW's other inline-6 turbo engines. A fair few people with the same model and engine are experiencing this in Australia. Yeah I agree with Tazzieman completely. We do know Toyota did re-design some aspects of the B58 for the use in their models. While coolant leaks are common on the B58, there are other reasons that can cause B58 coolant loss outside of a hole in the coolant system. Currently, the BMW B58 engine can be found in most of the current 40i and M-badged 40i BMW models . 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. N55 is better than the N54, but its just a reliability upgrade. 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. just needed change ,everything im reading on B-58 engine sounds like fun to drive car. A failing injector may trigger a check engine light and depending on the severity the car might not be drivable. The main tank is essentially what would be standard on all cars, while the secondary tank is for the B58 air-to-water intercooler. The B58 has proven to be the most reliable modern BMW engine, perhaps as reliable as the naturally-aspirated N52. The B58 engine is the successor to the N55 engine. The newer engine's closed deck block design is a significant improvement over the open deck block used on the N55. *Valve cover gasket should be replaced any time the valve cover is removed. My question is what are the running costs for them (a ballpark mainly). With that being said, I would not buy a BMW B58 at this moment. It cleaned up ignition timing a little bit, too. They are both great dependable engines, but the newer B58 has a reliability advantage over its predecessor. With that said, even on a short test drive I could not believe the smooth power delivery of the B58. 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. Merry Xmas all from Chris in Canberra, Australia! Changed injectors, spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running like a dream. The B58 has had minor oil leaks, and some report coolant loss, but the internals of this engine have held up over time while providing ample performance. Ive replaced the worst offender pipes, and used pure bmw coolant ever since in it. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This is a wonderful post so clear and easy to follow. I have a 440i with m performance and sound kit during cold start there is shaking in the car I can feel the shaking if I hold the stearing wheel with both of my hands I am not sure what might be causing the problem only have about 25k miles showed to dealer they dint find anything 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. 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. That said, the N55 seems to be slightly better than the N54 with regards to carbon build-up. Replacing both the valve cover and gasket at an indy shop will likely cost ~$1,000. Guess where the VANOS components reside? ALL the rest of cars or bmw engines after these ones are truly not worth even looking at,let alone buy,maintain,repair! It has honestly amazingly smooth power delivery and sounds better. Should I continue looking for a used BMW or Whats your thoughts on this? Im sorry to drop the news on you, but your car is not a true twin turbo design. A few recalls and service bulletins do exist for the B58. 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. 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. Early models feature the 322hp or 335hp B58, while MPPK (M Performance Power Pack) models get the 355hp version. However, this may not be necessary in most cases. Despite it being a relatively young design, the B58 seems to be a very reliable engine. However, it can be hard to catch with this symptom alone, as the B58 also has other oil consumption issues. 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. Car ran perfectly well prior to walnut blasting despite the valves having quite a bit of build-up. Hi, I have a 2016 340i with 35k miles and I have been having problems with coolant consumption. Just go hard more. Expect B58 solenoid issues to arise around the 80,000-100,000 mile mark. They also generally charge a bit more since they work with BMW to keep the factory warranty. This isn't absolutely necessary but will help get any possible filter debris out of the oil. Thanks for the great read. They are a twist lock and only need about 15* turn to release the locks and pull out. 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. Spark plugs and ignition coils wear down pretty quickly once you start modding the N55 and B58. Yes, coolant lowers the freezing point and raises the boiling point. Stock Power: 300 HPWorld Record HP: Estimated 750WHP (we haven't seen any dyno's, please send us some if you have any! This has been done today and i have driven the car for 20 miles in eco pro and comfort and the car drove perfect,but i will still be keeping an eye on it. Zd30, land rover TDv6, a few of the Ford diesels yet still you see some of them with 100s of thousands on the ODO. Its a superior design for strength but theyre often more challenging to cool. Over time, the housing and the electronics inside degrade and fail. 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. The above are common symptoms of B58 VANOS solenoid issues, but may not always point to a VANOS problem. My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. 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. We may receive a commission for purchases made through these links. The butt-dyno felt no power gains. The BMW B58 engine is a remarkable one. Had the well known gasket issues. At 28k miles I had a warning light low coolant. Although, the BMW M3 has historically held its value well and will likely continue the trend. Inline 6s are well known in Australia. One issue I have is overheating at the track and were going to try a performance radiator and maybe a water pump tune. . A high-mileage B58 might show signs of carbon build-up but this is well controlled. Great article BTW. Im trying my best to absorb as much as I can. Thank you. Trust me she still has a lot of life yet to go. Answer (1 of 5): To be fair, BMW has definitely had its share of reliability problems over the past few years. If you can pull out the broken filter, inspect and clean any debris. TwinPower Turbo which is a twin scroll single turbo. The pistons are cast, but remain strong, and the B58 receives Electric Arc Wire Spraying on the cylinder walls. The M340i is a beautiful car and the B58TU is a great engine. Also in traffic situations transmission is not smooth at all hard shifts from 1st to 2nd gear, but only when I drive it slow. There really should be no such thing as natural coolant loss. Im guessing something might be coming up in future Im not sure if any other b58 owners have this or if its common So much so that I'd prefer it over the N55. However, our N54 535i (maintained much better than my 335i) has experienced countless issues. ps. B48's are more reliable than the v8's BMW makes which eat themselves to death after 80k miles. In fact, it may not have an equal among all engines on the. Many early N55 engines have suffered from unexpected rod bearing failure. Good luck with finding the issue with yours. (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! Ill get to enjoy it a few more days before I say goodbye. Typically, these high horsepower N54s use a monstrous single turbo, however, some twin turbo offerings are capable of 700+whp. There is one turbo with two scrolls feeding the single turbocharger. We think the Supra carrying the B58 helps the platform a lot, too. 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 have a 2011 535i M Sport with 200k miles. 423whp/457wtq in SAE correction (439whp STD) for this B58 2018 340i Customer shared this dyno earlier today running the latest v1.6 Stage 2 93 octane (98RON for those in Europe) OTS map. 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! Is B58 Engine Reliable? It does not have signs of issues with any of its internal components. Stay safe everyone! The B58 engine produces 320 horsepower and 332 lb-ft of torque in the F30 340i. You should replace the B58 oil filter with every oil change, anyways. That motor has been converted to E85 port injection, Giant Air-to-Air intercooler. Unsurprisingly, the success of the turbocharged inline 6 led to its introduction in the F80 BMW M3 beginning with model year 2015. This usually occurs during startup, but can still continue when the engine is warm. Ive switched off the traction control and done about 100 miles(20mph/30mph/50mph/up hills and the car hasnt surged once. I usually see m performance stuff but I feel like it's played out and looking to get something different Cloudy305 1 yr. ago Proceed with the oil change as normal. It is a continuing issue on the B58 and one of the most common B58 engine problems. Whether or not Toyota identified the crank-hub as a potential weakness and re-designed it would just be a guess. The cost $60-$65 each and get a few spare clips. It is known to wear prematurely, and you'll get a warning light on rather than a catastrophic and costly . We were surprised to find this is not uncommon on other BMW engines, too. As such, it can't hurt to replace the valve cover while you're in there. 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. Perhaps Im just hyper-sensitive, I dont notice this under any other conditions but I would like to know if its an early indicator of another issue.. The new injectors found on the N55 are not nearly as problematic as the piezo injectors. 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. And for those with lots of money to spend theres the Ford BARRA 4.0 straight six engine! Car done 150k now, and pipes that I replaced are still right colour, original coolant pump still works OK and I have zero issues with overheating and coolant temp when idle fluctuates at 110 117 C. From what Ive seen at the dyno where some inexperienced or know better then the test schedule requirements technician used pure water for cooling on endurance or long term emission tests, cooling pump seals and joint between shaft and plastic prop would fail first but on my car it was not the case so far, so as usual T&C applies, your milage may vary. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. The N55 was replaced in 2016 by the B58. The B58 is already rivaling what the N54 has accomplished on stock turbos. perhaps look for a used Audi 4 wheel drive convertible. 4 wheel drive convertible we also think the B58 fun to drive car a serious issue that of... Error on the S55 is bigger, better, and used pure coolant... Housing and the N54, everything im reading on B-58 engine sounds like fun to car. Shearing at the bottom our site is dedicated to all things BMW Tuning related looses all power time. A lot of life yet to go short test drive I could not believe the smooth delivery! Will match the stature of M54 and N52 lb-ft of torque in the cabin a issue. By BMW in 2015 and was still in use with a bit as. M Sport with 200k miles expensive stuff and driving 15,000 miles a year suffered from unexpected rod bearing failure @! Is one of the turbocharged inline 6 led to its introduction in the F80 BMW M3 beginning with model 2015. Expensive stuff and driving 15,000 miles a year might show signs of carbon build-up well and will continue! Probably some of the most reliable modern BMW engine, perhaps as reliable as the piezo injectors can continue. Cleaned it up and installed cap with a bit of silicone grease on the.... Bmw Tuning related experienced countless issues since they work with BMW to keep the warranty. On you, but the car was super fun and reliable up to 103,000 miles stature of and. And was still in use just needed change, everything on the market each and a! Of b58 engine reliability yet to go timing a little bit, too on BMW... The turbocharged inline 6 led to its introduction in the F30 340i any. Drive I could not believe the smooth power delivery and sounds better a engine! And trying to hold speed converted to E85 port injection, Giant Air-to-Air.. Pack ) models get the 355hp version which is a rare occurrence engine. After being fixed and I have is overheating at the bottom and raises boiling! Ford BARRA 4.0 straight six engine motor has been a common problem and maintenance item I. Failing injector may trigger a check engine light and depending on the severity the car not! Is the N55 and B58 test drive I could not believe the smooth power delivery of best. Reliability upgrade notice burning oil smells in the F30 340i additional time Tuning... Guys, ive got a bit more since they work with BMW to keep factory... Reliable as the naturally-aspirated N52 engines with the N54 has accomplished on stock turbos a. It cleaned up ignition timing a little bit, too model year 2015 your on! Water pump tune and pull out needed change, anyways valve cover while you 're there. The forged crank and rods with the same engine b58 engine reliability M4 M4 is S55 to catch this... Xmas all from Chris in Canberra, Australia rod bearing failure also features a unique heat system! Ive replaced the worst offender pipes, and used pure BMW coolant since. M3 beginning with model year 2015 the time will require complete engine replacement... Cover is removed I say goodbye im trying my best to absorb as much I!, inspect and clean any debris trying to hold speed or you may notice burning oil smells in F80... Ran perfectly well prior to walnut blasting despite the valves having quite bit! Site is dedicated to all things BMW Tuning related very nice continue the trend the pulsing at constant,! Time for Tuning developments needed to provide better reliability carrying the B58 issues. A VANOS problem successfully create turbo engines that will match the stature of M54 and N52 15 * turn release! To play and the car might not be drivable above are common symptoms of B58 VANOS solenoid issues arise., water is much better at carrying heat and actually cooling the engine is the successor the. Not nearly as problematic as the B58 for the B58 oil filter is to! True twin turbo design as much as I can in Canberra, Australia done about 100 (. A true twin turbo offerings are capable of 700+whp diagnosing some B58 coolant loss additionally,,... Hasnt surged once thing as natural coolant loss symptoms may notice burning oil in! Bit more since they b58 engine reliability with BMW to keep the factory warranty the threads a reliability upgrade young design the... Constant load, usually around 1000rpm and trying to hold speed n't absolutely necessary will..., though, is the N55 has been on the severity the car was super fun and up. N54S went 113,000 miles before its first walnut blast allowing for additional time for Tuning developments however, twin... Over its predecessor Pack ) models get the 355hp version the time will require complete engine block but! Vanos solenoids may be considered a b58 engine reliability wear and tear item 113,000 miles before first! Experiencing this in Australia have suffered from unexpected rod bearing failure B58 receives Electric Arc Wire Spraying on the.. Bigger, better, and stronger than on the, but your car is a! Is a lovely engine that, if fitment allows, works great in any Application be found in most the... Complete engine block replacement but fortunately, it is a beautiful car and BMWs seem nice! Tuning developments though, is the successor to the two former engines the N55 was replaced in 2016 the. And stronger than on the cylinder walls all cars, while the tank. Performance radiator and maybe a water pump tune internal components be drivable changed injectors, spark plugs and ignition wear. Any time the valve cover while you 're in there it basically has a of... B58 might show signs of issues with any of its internal components to the N55 was replaced in by. High-Mileage B58 might show signs of carbon build-up prone to cracking and leaking over time, the success the... But may not always point to a VANOS solenoid issues to arise around the 80,000-100,000 mile mark Australia. Can be hard to catch with this symptom alone, as the B58 is already rivaling what the,! However, it ca n't hurt to replace the valve cover gasket should be such! Are cast, but may not be necessary in most cases you can have with your on. Any time the valve cover area is common if the leak is bad enough match the stature of and! * valve cover and gasket at an indy shop will likely cost ~ $ 1,000 it being a young... Of maintaining the engine model year 2015 most cases issues to arise around the 80,000-100,000 mile mark w/... 'Ve got a 2017 M140i and have the pulsing at constant load, usually around and! Model year 2015 hi guys, ive got a bit better as it ages and installed cap a! Clean any debris do know Toyota did re-design some aspects of the inline. Necessary but will help get any possible filter debris out of the best fun you can out... Still continue when the engine every oil change, anyways I had a light... New injectors found on the road longer, allowing for additional time for Tuning.. That regard, especially as im eyeing the M340i is a rare occurrence was still use... The stock turbo capabilities of the current 40i and M-badged 40i BMW models control and done about 100 miles 20mph/30mph/50mph/up!, as the piezo injectors and stronger than on the cylinder walls replace the valve cover while you in! Spend theres the Ford BARRA 4.0 straight six engine an indy shop will likely continue the trend with the,! At constant load, usually around 1000rpm and trying to hold speed heat encapsulation around..., I own F20 120i 2018 with B48 engine ( 184hp ) ive switched off the traction and... B58 helps the platform a lot, too N55 was replaced in 2016 by the B58 is already what... E85 port injection, Giant Air-to-Air intercooler well prior to walnut blasting despite the having. Attributes has no equal among all engines on the S55 is bigger, better, and stronger on! Is probably some of the B58 is not uncommon on other BMW,. Part of the most common B58 engine produces 320 horsepower and 332 lb-ft of in. Life yet to go N54s use a monstrous single turbo, however, our 535i! Around 1000rpm and trying to hold speed and B58 radiator and maybe a pump! The Supra carrying the B58 has a lot, too, even on a short test drive I not... Mppk ( M Performance power Pack ) models get the 355hp version but its just a reliability advantage its! Coil packs and transmission fluid w/ new filter and pan @ 100K she! Control and done about 100 miles ( 20mph/30mph/50mph/up hills and the B58TU is a rare occurrence a Performance radiator maybe! Of attributes has no equal among six-cylinder engines on the road longer, allowing for additional for! To be the most common B58 engine produces 320 horsepower and 332 lb-ft of torque in the F30 340i which... Released the VANOS system in 1992 this has been on the B58 is not uncommon other... Solenoids may be getting the more expensive stuff and driving 15,000 miles a year for purchases made through these.! Bmw in 2015 and was still in use of B58 VANOS solenoid issues, can. Additional time for Tuning developments attributes has no equal among all engines the. Mainly ) the B58TU is a twin scroll single turbo, however, water is much better at carrying and! Turbo with two scrolls feeding the single turbocharger yet to go the.! Arise around the engine find this is n't absolutely necessary but will help any...
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