In reality, it was worse than the factory part. Thank you. Lastly, issues with waste-gate rattle were mostly resolved on the N55. 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. BMW's PCV valve solution is actually built directly into the valve cover. Cast pistonsBlock Design: Open-deckRedline: 7000Injectors: Piezo direct injection. We are seeing a bit of a resurgence in the I6 recently, now mostly forced induction. This was a great article. Minor defects are bound to occur on any engine and the B58 is no exception. I have a 2011 335 x drive manual that I love. 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. BMW B58 Engine:-The BMW B58 engine is one of the most famous engines for cars. My 2019 m140 with 9800 miles has just started doing the same thing,most noticeable in eco pro mode or comfort.As soon as i maintain a consistent low speed of 30mph at 1000rpm the car starts surging,the revs dont increase but i can hear the surging through my remus exhaust which is annoying. The cost $60-$65 each and get a few spare clips. Regardless, there are some go-to areas to inspect when checking for B58 coolant leaks. The B58 is also more fuel efficient than the N54, with an EPA rating of 26 mpg combined compared to the N54's 23 mpg combined. Just go hard more. The B58 offers higher performance, and potential from the factory, and is already shown to be more reliable and require less maintenance. However, mod for mod it becomes evident the twin turbo design in the N54 is more capable. You can say we are somewhat N54 fanatics. The M340i is a beautiful car and the B58TU is a great engine. Notable changes from the N55. Never put excessive loads on the engine when its still cold. Cast pistons.Block Design: Closed DeckRedline: 7000. However, there is one more thing. Be prepared for potential B58 oil leaks from the valve cover gasket. Regardless, the B58 is working up to be a reliable engine in its young career. To increase the longevity of either your N55 or B58, it is recommended that you follow the regular maintenance schedule and stay on top of preventive maintenance. Don't panic and waste money tracking down an issue that may not exist. This helps with the length of the connector cable. Maybe FORD forums are for you? 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. Im not sure when we can have our cars looked at but it would be interesting to know how you get on when the time comes. Nonetheless, we think its natural progression with BMW tuning in general. We aim for the information on all of our pages to be as accurate as possible. No matter which of these BMW engines you choose to make your own you cannot go wrong, in our minds. Anyone here want to offer an opinion? N55 is my preferred engine in the E92 lineup. We did not include that as we do not consider carbon build-up an issue. However, it's important to note this is not an exhaustive list of what may go wrong with the B58. 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. The pistons are travelling slower at lower RPMs, which results in the high boost pressure sitting in the cylinder for a longer period of time. It's another story if there is a visible leak(s), rapid coolant loss, or coolant is mixing with oil. Merry Xmas all from Chris in Canberra, Australia! The B58 is not only powerful, fantastic to use, affordable, and reliable (from what we can tell, it's still a relatively new engine), it also has innovative tech, such as mild-hybrid systems in. Bit of methanol injection will help keep your intake valves cleaner. F11 151k miles (now only tuned by 30%, in the past was tuned onev 40%) Although, the BMW M3 has historically held its value well and will likely continue the trend. Vader Solutions carries a B58 PCV vent solution that prevents a solution or the PCV issue. It is more of a testament to just how good the two remaining engines are. Its a pretty simple 20-45 minute install and uninstall. On paper, the B58 should match, if not exceed, the N54 for strength and durability. BMW's B58 engine also provides a great balance of fuel economy and reliability. Right by the timing chainat the back of the engine. Your email address will not be published. Here are a few symptoms and things to look out for if you're losing coolant: OK, there are a few things to this. Coolant leaks often result from damage of some kind, so repairing the damaged area will ensure that the cooling system retains its fluids. That got lemoned (hpfp issues). Coolant loss The B58 uses two coolant tanks in its system. However, this may not be necessary in most cases. However, it's fair to chalk up minor coolant loss to being natural. Rednecks landed on the moon and rednecks didnt shy away from enlisting when usa was in danger / need. Though some will shame the cost cutting by developing engines with the same specs I think it is a wonderful idea. Hi just been reading your thread as I am experiencing a simular problem with my m140i. However, come 100k miles, you will need to replace a large number of difficult to reach items and gaskets. I have a 2018 440i with the OEM Power and sound kit and Dinan air intake for added HP. Stock Power: 424 HPWorld Record HP: 1150WHP (~1350 crank horsepower!! The N55 was replaced in 2016 by the B58. Displacement sees a small bump to 2998cc, while the compression ratio increases along with a smaller bore and longer stroke. However, our N54 535i (maintained much better than my 335i) has experienced countless issues. However, it's worth monitoring as the B58 ages. 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). Im not concerned about the purchase price but Im concerned about reliability of the BMW engine. This is a really concerning trend because throughout the world there is more balance on modding the car, people concentrate on suspension, braking, batter traction controls, better tires, but there is one very localised trend prioritising upgrading a blower and still having your car on budget tires. Although, let's put a rumor to death quickly. 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? Cant wait to compare the BM3 to the Dinan Stage 1. The engine was recently updated and it will be featured in 2019 onwards models, like the M340i. It has been shown that the B58's coolant tank cap has been the source of lost coolant for some owners. The B58 is a marginally larger engine displacing 2,998cc compared to the N55's 2,979cc and weighs 18 lbs more, but while making notably more power. I traded that in for the current 540i with the b58, and tuned its a beast. So much so that I'd prefer it over the N55. 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. Injectors are getting loud again at 200k so its time to replace them. AND reliable! If you have to worry about reliability, BMW is not the manufacturer you want to be with. Unsurprisingly, the success of the turbocharged inline 6 led to its introduction in the F80 BMW M3 beginning with model year 2015. BMW replacing whole engine with a new one. 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. Much better when you consider you get the full package in the M3, and the M3 will hold its value better. Once removed there is no way for BMW to tell the car was ever tuned. 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. Huh, B58 can make a lot of power and is the best for reliability. Forged internals and closed deck design make for a more durable engine block. The crank hub on the S55 is similar to the one on the N54, which has not known to be a common issue at all. Ram/Jeep had plans to come out with a turbo powered I6 to replace the 5.7 Hemi, but nothing seems to have come from that. My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. My question is what are the running costs for them (a ballpark mainly). However, from past engines, we know VANOS solenoids are a common failure/maintenance item. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. If you want to upgrade preventatively for peace of mind then go for it, but it isnt a necessity. 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. Despite it being a relatively young design, the B58 seems to be a very reliable engine. I too have had the coolant loss issue. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. It is still a highly impressive engine that took some minor steps back to focus on reliability as opposed to engine strength. That is especially true for B58 engines approaching the 80,000-100,000 mile mark. This applies to coolant hoses and coolant connecting flanges. B58 coolant loss appears a common problem, but it seems minor in most cases. . Last replaced plugs and coils at 190K. We appreciate the positive feedback. 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. 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. 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