After the success of I6 naturally aspirated engines: M54 and N52, BMW switched to turbo engines. Hi Hank, Ive currently been having issues with my M140i. The B58 is not showing the same flaws seen in the early years of the N55. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. "Natural" is in quotations for a reason. It will save you tone of money in unnecessary repairs bills. BMWs B58 and S55 engines are newer, so more issues may pop up down the road. Im not sure how many as I was never given any job sheets. Considered my car is stage 1 tuned. ago At high mileage, I'm seeing: cracked a/c compressor, cracked evap lines, cracked intake piping, Vanos solenoids, water pump, fuel injectors. The B58 is part of BMW's new modular engine family, each engine using a displacement of 500 cc (30.5 cu in) per cylinder, following the B38 and B48 engine.. Peak power at just around 16psi. One major killer of gaskets is the constant heating and cooling cycles they're subjected to. The M340i is a beautiful car and the B58TU is a great engine. So I will let it leak and add coolant and see if over time a visible stain emerges at any location. 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 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. Hi guys, Ive got a 2017 M140i and have the pulsing at constant load, usually around 1000rpm and trying to hold speed. We use cookies to improve your experience on our website. Of the engines referenced in this post Toyota is only using the B58. 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. Thanks for the clarification and reply. We are seeing a bit of a resurgence in the I6 recently, now mostly forced induction. When the N54 first popped up in 07 there were hardly any performance/tuning companies out there. Although, VANOS work can be done without lifting the engine. Thank you for the comment. You are using an out of date browser. Cleaned it up and installed cap with a bit of silicone grease on the threads. The most common problems are water pump failure, cracked charge pipe, valve cover gasket leak, and oil filter gasket leak. Is B58 Engine Reliable? 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. 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. According to my best measure it is about 250ml/1000 Km. Just bought a 2017 340i and I really love the B58 so far. Why? The TU1 update is mostly intended to improve emissions. What kind of HP increase could I expect with the JB4 piggyback tune? Hi, honestly I dont know, but man, seriously dont disregard using an old go pro under the bonnet to record how your engine is behaving under the load. The B58 also features a unique heat encapsulation system around the engine. Its a lot of extra heat and stress on these engines. Own 2014 535ix great engine, but with common problems at 83 k miles valva cover gasket and oil filter gasket leaking. f34 130k miles (tuned about 30% up only intercooler upgraded) And if they are, can the transmission ratio be changed? I really want one with the N55 or B58 single twin scroll turbo and plan to do about 350-400whp. Scotland to be precise. 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. Additionally, it receives the forged crank and rods as with the N54. The B58 is part of BMWs newest objective in the B series engine family; reducing cost by using the same bore, stroke, block, rods, pistons, etc as the other B series engines. Congrats on the purchase! The B58 engine produces 320 horsepower and 332 lb-ft of torque in the F30 340i. Minor leaks may not produce enough smoke to notice. It cleaned up ignition timing a little bit, too. Trust me she still has a lot of life yet to go. About heat capacity of water / glycol. 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. 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). Spark plugs and ignition coils wear down pretty quickly once you start modding the N55 and B58. 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. Whats your thoughts on this? Well do our best with a rough estimate but it really can vary a lot based on age, mileage, driving style, etc. other than that it runs good and I still like it. Its a superior design for strength but theyre often more challenging to cool. Hi Adam, Thanks for the information. The B58 engine is the successor to the N55 engine. Right by the timing chainat the back of the engine. BMW Reliability Most Reliable BMW Engines. However, the initial value in purchasing the N54 may diminish due to potential reliability issues. DIY everything $300 to $750 a year B58 coolant loss appears a common problem, but it seems minor in most cases. All rights reserved. Great point regarding walnut blasting. We were surprised to find this is not uncommon on other BMW engines, too. Now I still experience a bit of coolant loss, but much, much less. Disclaimer: This site contains affiliate links. My question is what are the running costs for them (a ballpark mainly). B58 is reliable, bulletproof and can handle hella boost on stock block. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. It's a pretty labor-intensive job. It basically has a more aggressive tune from the factory. Bm3 offers some great tunes, and I think youll be happy with the move over to bootmod. Pistons are not forged, however they're pretty strongBlock Design: Closed DeckRedline: 7500Injectors: Bosch solenoid style direct injectors. Due to the complexity of turbocharged engines, which introduce additional pressure into the equation, modern PCV systems are more advanced than a simple pressure relief bore through the block. There are a few notorious issues in the N55. The N55 and B58 are similarly designed 3.0 inline-6 single turbo engines. Most B58 owners who experience continual coolant loss have a hard time pinpointing the exact cause of the loss. 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. Our site is dedicated to all things BMW Tuning related. I just bought a 2017 April F20 M140i x drive and I am Ive switched off the traction control and done about 100 miles(20mph/30mph/50mph/up hills and the car hasnt surged once. Lastly, issues with waste-gate rattle were mostly resolved on the N55. Haha your last comment seems to be spot on! So, do you suggest to fill coolant tank with 100% original bmw antifreeze coolant, 0% water??? Thanks for the great read. Nonetheless, we think its natural progression with BMW tuning in general. There have been a few cases of issues with the crank hub, however it was blown out of proportion due to a company coming up with a product that was claimed to solve the issue. . Tuned car = more power = more temperature in combustion chamber = more temperature on cylinder walls touching the coolant = more possibility of localised boiling. One of our N54s went 113,000 miles before its first walnut blast. However, from past engines, we know VANOS solenoids are a common failure/maintenance item. Conclusion. Ive replaced the worst offender pipes, and used pure bmw coolant ever since in it. BMW's B58 engine also provides a great balance of fuel economy and reliability. Required fields are marked*. Maximum PSI seems to make a good one. One example about 415whp 442wtq out of your B58 on a simple STG2 OTS 93 ONLY Mod is Downpipe. I suspect the oil filter housing and valve cover issues may rise as the engine ages. Solenoids are relatively inexpensive and easy to replace. B58s threads and videos are popping up everywhere of blown pistons on the B58 at 650+/- Hp My point is if the B58 is limited to same horsepower as a N55 then I benefit from a better handling car , Honorable mention for Built N55s from the M2s. Good luck with finding the issue with yours. Im (sort of) confident they will eventually find the source of the problem but until they do its very frustrating. (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. Im guessing something might be coming up in future Im not sure if any other b58 owners have this or if its common Other common leak areas include the radiator, especially if it has been damaged by rocks or other debris, and the B58 coolant cap, which has been shown to lack the air-tightness necessary to keep all of the coolant in the system. This engine shows massive potential not only on paper, but also in real world results. That said, the N55 seems to be slightly better than the N54 with regards to carbon build-up. The N54 might not be extremely reliable when it comes to things external to the engine. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. Im building a highway cruiser with eye opening off the line capability, but the 24.5 tires (largest that will fit and not look out of place) make for high engine revs at interstate speeds. Stay safe everyone! Most impressive is not the power alone, but also the fact all of the stock components can handle this with a basic tune. Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. Be prepared for potential B58 oil leaks from the valve cover gasket. It manages a respectable 322-382hp and 332-369 lb-ft from the factory. BMW learned many lessons from the N54 and N55 and used this knowledge to engineer the B58; an engine with stronger internals, a more robust cooling system, and an improved fueling system for increased reliability. My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Absolutely excellent comparison, Zach. Toyota is well known for its masterpiece in the old Supras the legendary 2jz. My 2017 340i with M-Sport package is rated by BMW for 355 hp with twin turbos. Cooling system components are located on the intake side of the engine where there is less heat. 2 Zach, thanks for those articles, as much as those can be redundant for some those are very nice destination of knowledge for people looking at some problem fresh. Not sure which car you refer to when you say single turbo. BMW B58 vs. S58: Performance, Tuning, Reliability & Sound, BMW M340i vs F80 M3 Comparison: Acceleration, Performance & Handling, BMW F30 340i vs. G20 M340i: Performance, Handling, Drivetrain & Interior, BMW F30 LED Sequential Turn Signal for Side Mirrors, is a participant in the Amazon Services LLC Associates Program. 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. Not only do they produce significant power, but the engines also do so without much turbo lag and long power bands. Never put excessive loads on the engine when its still cold. Required fields are marked*. The ML variant makes 335hp while the OL features a staggering 382hp. It is a turbocharged straight-six engine. Appreciate any thoughts! *Picture is from an N54 that had a leaking VCG for nearly 20,000 miles. As you say when under load, like a slight uphill, at a constant speed you have this light surging surging. A closed-deck block is a significant upgrade from the open-deck designs on the N54 and N55. Though some will shame the cost cutting by developing engines with the same specs I think it is a wonderful idea. As such, it can't hurt to replace the valve cover while you're in there. 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). 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. A code scan revealed code P0012. I have 7 series with N55, I did remap (stage 1) and able to gain 400hp and 560NM torque. 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. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. The B58 is definitely an awesome engine and were impressed with how quickly things are moving forward with the platform. Zd30, land rover TDv6, a few of the Ford diesels yet still you see some of them with 100s of thousands on the ODO. We also think the B58 should hold up a bit better as it ages. Then remove and replace passenger side. Most wont have an issue and we truly believe its something thats been blown out of proportion. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. Typically, boosted engines are better suited for lower compression, as a longer stroke subjects the internals to boosted pressures for longer periods. In fact driving a BMW is probably some of the best fun you can have with your clothes on! 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. In the case of a leaking B58 water pump, you'll have to replace the water pump assembly (this is an urgent issue if you notice your B58 overheating). You must log in or register to reply here. The OEM design usually just spins and throws timing off; its highly unlikely it will cause any other damage. The very same powerplant won the award in 2016 and made the list again in 2017. 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. I eventually sold my car back to the dealership without me ever getting g to the bottom of the issue. The rough idle is a symptom of the VANOS solenoid. ZF also builds some awesome transmissions that definitely pair well with these cars. I just finished reading customer issues with the BMW engine in the 4 series. The closed deck block is huge, but the N54 never really had issues with the open deck design. I drive a 2017 M240i and had the Dinan Stage 1 installed right after purchasing it. A 2017 340i M Sport uses the B58 engine, which is a single turbo. Value comes in at 3, however, there is a strong argument it should be higher. B58 engine is same used for for M4 with greater HP. No leaks found when parked, no low coolant warning either, so the low coolant thing was puzzling. [youtube=https://www.youtube.com/watch?v=WzgzSnYDvz4&w=660&h=372]. Before some people will get but hurt and start flame war I dont hate on rednecks. Huh, B58 can make a lot of power and is the best for reliability. 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. Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. However, there are solid crank hub upgrades that should be considered when pushing the limits. The N55 has proven to be a reliable engine but is edged out by the B58. There really should be no such thing as natural coolant loss. Yet when local boiling occurrs we were ended up with crap emissions due to increased combustion chamber temp ( and ECU will sometimes will try to mitigate that via increased pilot spray to cool down the chamber funny those modern day ecus ). A failing injector may trigger a check engine light and depending on the severity the car might not be drivable. So, we've got a bit of a headache here. That motor has been converted to E85 port injection, Giant Air-to-Air intercooler. Once youve done it a few times it becomes very quick and easy. The new B58 engines are a third generation of turbocharged and direct injected L6 engines. However, you may make it well past without issues. Let's examine the changes from the B58 to the B58TU1 before we dive into any B58 engine problems. It is tough to find a clean M3/M4 for less than $45,000 today so the performance comes at a steep cost up-front. My car is going in to BMW on Thursday. The BMW N55 followed the N54 with its initial release in the 335i beginning in 2010. 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. We are hoping to soon add an F80 M3 and F82 M4 GTS. Rednecks landed on the moon and rednecks didnt shy away from enlisting when usa was in danger / need. This is a well-documented issue in certain N55 engines, most notably earlier models equipped with a Pneumatic Wastegate (PWG). Really appreciate the info. I had the 4.2 I6 in both my 1975 Landcruiser (FJ40) and my 1978 Jeep CJ-7. Ok, definitely my thought process as well. Engines now are far more reliable than in the past. I have same issue with slow coolant level decrease, Ill try to install a new cap like suggested. But sometimes, my engine just doesnt want to start. What can I do without voiding warranty to increase HP without buying a M model? Next stop replace control arms on front and rear, along with shock mounts front and rear she will be running smooth as new. For that reason, the B58 scores the worst value rating. We appreciate the positive feedback. Quite a few reports claim that even BMW-certified repair centers have difficulty diagnosing some B58 coolant loss symptoms. 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N52, BMW switched to turbo engines engines: M54 and N52 BMW... Internals to boosted pressures for longer periods it tuneability as compared to the twin turbo S55 2017 340i Sport... Meth will help slow down carbon build-up less heat, it receives the forged crank and rods with... 1000Rpm and trying to hold speed single twin scroll turbo and plan to do about 350-400whp the idle... Usually just spins and throws timing off ; its highly unlikely it will cause any other damage highly it... Issues may pop up down the road pump failure, cracked charge pipe, valve cover while you in. Is about 250ml/1000 Km flame war I dont hate on rednecks 83 k miles valva cover gasket and filter. And rear, along with shock mounts front and rear, along with mounts... Are far more reliable than in the old Supras the legendary 2jz increase... Carbon build-up a little bit, but with common problems at 83 k miles cover! These engines measure it is a well-documented issue in certain N55 engines, we know VANOS solenoids are a reports. Went 113,000 miles before its first walnut blast of coolant loss symptoms over to.. Compression, as a longer stroke subjects the internals to boosted pressures longer. Even BMW-certified repair centers have difficulty diagnosing some B58 coolant loss appears a common problem, but it seems in... 4 series when its still cold the dealership without me ever getting to! The new B58 engines are better suited for lower compression, as a longer stroke subjects the internals to pressures. To soon add an F80 M3 and F82 M4 GTS when its still cold done without lifting the engine B58. ( sort of ) confident they will eventually find the source of the stock components handle... Each time after being fixed and I still experience a bit of a here! And we truly believe its something thats been blown out of proportion and reliability well these. Value in purchasing the N54 with its initial release in the N55 and N54 share similar! A visible stain emerges at any location also builds some awesome transmissions that definitely pair with. Idle is a well-documented issue in certain N55 engines, most notably earlier models equipped a! Upgrade from the valve cover issues may pop up down the road ever since in it real results... A unique heat encapsulation system around the engine 1975 Landcruiser ( FJ40 ) if... Stage 1 ) and if they are, can the transmission ratio be changed Air-to-Air intercooler can! Eventually looses all power each time after being fixed and I still like it may make well!