Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. Just remove all the plastic covers and you can get your hand back there. Of the engines referenced in this post Toyota is only using the B58. We appreciate the positive feedback. perhaps look for a used Audi 4 wheel drive convertible. 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. 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. 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. 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 As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Flush out and refill coolant every 5 years. One of our N54s went 113,000 miles before its first walnut blast. . BMW's B58 began production in 2015 and was initially released in 2016 40i models. 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. I think being on a slight uphill helps show this pulsing I assume due to the increased load. The B58 is more reliable than the N55. The rough idle is a symptom of the VANOS solenoid. Stock Power: 300 HPWorld Record HP: 978 WHP (~1150hp at the crank assuming 15% drivetrain loss)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. There was a recall issued in 2016 for a small batch of B58 engine to check and Replace Crankshaft Guide Bearing. Even though it has more than enough power for my needs, is it possible to tune this without voiding the warrantee? or these are minor for this strong engine? Weve inspected few more pipes and fact that it was running pure water just corroded plastic & rubber hoses inside (those turned bright yellow from black) after cutting pipe with knife the discolouration was 1-2 mm deep. I have same issue with slow coolant level decrease, Ill try to install a new cap like suggested. 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 imagine a lot of (even most?) The following table compares the technical data for both engines. 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. 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. It has honestly amazingly smooth power delivery and sounds better. The power meter can be seen from the head unit as I am able to activate it by coding. Well, like all of the modern, turbo BMW engines, the valve cover gasket is made of rubber. 2015 335i 4 series coupe has been a great auto. Ever since BMW released the VANOS system in 1992 this has been a common problem and maintenance item. 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. BMW tech found low coolant on the low pressure side. We are hoping to soon add an F80 M3 and F82 M4 GTS. Displacement sees a small bump to 2998cc, while the compression ratio increases along with a smaller bore and longer stroke. With the B58 being a newer engine thats likely going to be the less expensive option to maintain. Take this in for a moment - assuming a 12% drivetrain loss those numbers represent 602hp and 636 torque. We do believe it is better than some suggest, however, if you take the car to the shop for every minor issue and do not DIY an repair jobs the bills can certainly add up quickly. Although, the single turbo will likely limit its capabilities without upgraded turbo(s). My 2017 340i with M-Sport package is rated by BMW for 355 hp with twin turbos. DIY the basics (oil, brakes, spark plugs, etc) $500 to $1,200 a year 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. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. 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! This applies to coolant hoses and coolant connecting flanges. Replacing both the valve cover and gasket at an indy shop will likely cost ~$1,000. Maybe youve not seen issue on N54 because cap releases at higher pressure. I add small amount of coolant from time to time, but nothing crazy. However, this may not be necessary in most cases. BMW replacing whole engine with a new one. Disclaimer: This site contains affiliate links. The very same powerplant won the award in 2016 and made the list again in 2017. For this reason, it is important to be cautious of power and boost targets in the lower range. The search goes on but in honesty I do enjoy searching for my next vehicle and I do like a car with character ( minor issues) lol. This usually occurs during startup, but can still continue when the engine is warm. Excessive oil on the spark plugs is typically a dead giveaway that the VC or VCG are leaking. *Picture is from an N54 that had a leaking VCG for nearly 20,000 miles. Last replaced plugs and coils at 190K. You can indeed tune an M340i without voiding warranty. Consequently, I just ordered the BootMod3, which should be installed next week. 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. Obviously, with so many potential causes for a low coolant warning, the fix depends entirely on what caused the leak in the first place. You did bring up an excellent point with localized areas where coolant temp may be hotter leading to evap. Although, VANOS work can be done without lifting the engine. Tuned car = more power = more temperature in combustion chamber = more temperature on cylinder walls touching the coolant = more possibility of localised boiling. So much too learn, so little time. Good luck with finding the issue with yours. Hello and thanks for the great article! Two of our N54's are nearing 120,000 miles on original VANOS components. All new in 2016, the B58 turbo I-6 is the core member of a completely new all-aluminum modular "B" engine family that shares pistons, rods, valvegear and other key parts with 3- and 4-cylinder. Do you want to get more excitement out of your B58-powered BMW? True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. As an increasing number of N54 owners began pushing power into the 700+ territory the upper limits of the unopened engine became clearer. Steph Papadakis and his boys are making 1000HP @ ~42psi on a 2020 Supra B58. And I do own a 1990 bmw E34 520i with the M20B20 engine ,wich is very close to 300000 kms with no problems. 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. All the modern inline-6, turbocharged BMW engines are impressive, each in their own regard. That was an expensive and painful lesson to learn, as that car required pulling the motor to change the turbos. Sometimes, B58 coolant loss can be dependent on other things as well. You must log in or register to reply here. Is B58 Engine Reliable? When the N54 first popped up in 07 there were hardly any performance/tuning companies out there. BMW used an electric water pump on the N55. Replacing B58 VANOS components does NOT require lifting the engine. No engine is perfect, and some samples of the B58 suffer from minor issues. Stupid technicians, or cheap skates that mix coolant with distilled water cause cooling system boiling point to fall. Other common problems with similar symptoms include worn or faulty ignition coils, spark plugs, and injectors. I live in a cold climate, so the whole heat encapsulation thing is really nice. The B58 engine produces 320 horsepower and 332 lb-ft of torque in the F30 340i. Most B58 owners will have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW. Fortunately, this does not seem to be the case apart from the random, flukey issues. 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. That could be said for many modern engines. Nonetheless, you must pay to play and the N54 is no exception. It's reasonable to assume that there have been generational improvements in durability and reliability over the N54 and the N55. Well, for starters, the newest Toyota Supra uses BMWs B58 engine, and Lexus is considering using it in their IS models. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. A code scan revealed code P0012. The lack of the extra turbocharger reduces the stock turbo capabilities of the 335i. We may receive a commission for purchases made through these links. 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. Itd be great to know how these engines compare in that regard, especially as Im eyeing the M340i. However, it also carries some notable changes that may affect performance and reliability. However, the engine is capable of producing 500+ horsepower with a few basic upgrades. The other option would be the JB4 piggyback tune, which we believe is a great all around tuning option. Not as much as upgrading coolant pumping ability via a different pulley which is maybe a 10$ mod. I have decent heat with 5-10 seconds and knowing that my oil is getting up to temp quickly is a really nice feeling. Im (sort of) confident they will eventually find the source of the problem but until they do its very frustrating. So, do you suggest to fill coolant tank with 100% original bmw antifreeze coolant, 0% water??? Space is very limited but its doable. It does not have signs of issues with any of its internal components. Experience something very similar with a 2018 M240i. I have a 2018 440i with the OEM Power and sound kit and Dinan air intake for added HP. The ones that did exist were small and it was a much much smaller market prior to the turbo era. I suspect the oil filter housing and valve cover issues may rise as the engine ages. We appreciate the positive feedback! Thanks for the clarification and reply. As shown, the N55 shares the same stock power, displacement, compression, bore/stroke, and block design as the N54. If you recently had a coolant flush or had your coolant topped off, there is a chance that the system was incorrectly bled and there are air bubbles trapped in the system. Its important to keep in mind were in a completely new era compared to the E34. Regardless, there are some go-to areas to inspect when checking for B58 coolant leaks. Following BMWs trend, the B58 is also underrated from the factory with real world tests resulting in roughly 330 horsepower to the wheels. 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. We recommend changing the oil soon after this occurs. And if they are, can the transmission ratio be changed? The new B58 engines are a third generation of turbocharged and direct injected L6 engines. Was stock. 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). Injectors are getting loud again at 200k so its time to replace them. One of the most common routes is to install a PCV vent system, permanently bypassing the flimsy diaphragm and venting bypass gasses into either a catch can or another destination. Trust me she still has a lot of life yet to go. As we stated early, B58 engine problems are far less common than engine problems on BMW's earlier turbocharged straight-6 engines. I have 7 series with N55, I did remap (stage 1) and able to gain 400hp and 560NM torque. I have also speculated that it could be a throttle-by-wire issue where the interpreted throttle value is not constant (maybe its me thats not constant!!). Of course, this may vary a lot from shop to shop. Hi the B58 is not the same engine as M4 M4 is S55. BMW B58 Engine:-The BMW B58 engine is one of the most famous engines for cars. So to me, your statement about 300k kilometres (188k miles) E34, which is 30 years old car sounds like a barely used car. 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. 49 32 comments Best Add a Comment ijustbrushalot 8 mo. Great engine and a solid chassis that is fun to drive, especially with some suspension mods. I dont know what is the spec on the cap and what is the cap spring ageing characteristics it wont hurt, but changing emergency valve opening point MAY cause something else in the pressurised system fail to release the excess pressure SO: brand new cap YES, adjusting staff on the cap NO (unless you are professional and actually redesigned and rebuild whole cooling system to handle higher pressures) best way is just to limit limit potential for pressure raise, by increasing boiling point of coolant. After the success of I6 naturally aspirated engines: M54 and N52, BMW switched to turbo engines. Open-deck blocks and cast pistons are not great at handling extreme boost pressures for long periods of time. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. The BMW B58 is a turbocharged straight-six engine, which began production in 2015. 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? Hi All That's our simple answer for now. No matter which of these BMW engines you choose to make your own you cannot go wrong, in our minds. The new injectors found on the N55 are not nearly as problematic as the piezo injectors. Its combination of attributes has no equal among six-cylinder engines on the market. Dont hesitate to pack those with even more detail ! Forged internals and closed deck design make for a more durable engine block. They can hold, but not everyone maintains them well, tunes safely, has proper supporting mods, etc. The information I cant find are physical dimensions of either engine (especially height). As with most larger SUVs and 4x4s , especially if your roads are hilly or twisty or you carry loads. We aim for the information on all of our pages to be as accurate as possible. Typically, boosted engines are better suited for lower compression, as a longer stroke subjects the internals to boosted pressures for longer periods. Ultimately its up to you ( sorry for being blunt, but keep reading there is a point to that ;D ), brand new car = least issue & most money, old ragged car = cheapest & most issues. The BMW S55 is an impressive engine from top to bottom and will continue to shine in the tuning world. BMW replaced it under warranty as one would expect. Had the well known gasket issues. Thats really hard to put a number on since it can vary so much. I dont want to be that guy. Many issues with their turbo engines. The B58 features a forged crankshaft and a closed deck design in comparison. 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. The job of the B58 PCV valve is to relieve the pressure in the crankcase by rerouting it to the intake manifold and back into the engine. Vader Solutions carries a B58 PCV vent solution that prevents a solution or the PCV issue. Only truly good engines bmw made were M20B20 series(2.0, 2.5 , 2.7) and the big sixes M30B35 along with all its smaller or bigger versions. Washed my hands with it and looking forward to my next car (not BMW). The VANOS system uses oil pressure to control the intake and exhaust valve using an actuator on the camshaft. 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