b58 engine reliability

Cast pistons.Block Design: Closed DeckRedline: 7000. Great article BTW. The B58 is a great engine, but the S55 is better. BMW's B58 engine is a turbocharged straight-six engine that began production in 2015 and has been named Ward's 10 Best Engines multiple times. So, we've got a bit of a headache here. 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. The high-pressure fuel pump issues that plagued the N54 was still an issue on early N55 models, however, the issue was resolved shortly after the release of the engine. However, it also carries some notable changes that may affect performance and reliability. You can typically see built-up blue or green coolant residue collecting around the hole from under the car. Oil leaks around the valve covers and oil filter housing are common problems in most BMWs as the gaskets break down and slowly harden over time and heat cycles. Huh, B58 can make a lot of power and is the best for reliability. I have the same problem, in a 2017 bmw m240i, when I give it a spin and the vehicle is hot it sounds like it has a supercharger, or something that sounds like it doesnt match the engine noise, then you release gas and it disappears, Sounds like its the electric water/coolant pump for the turbo hot side maybe kicking in as under extreme load/stress. Well do our best with a rough estimate but it really can vary a lot based on age, mileage, driving style, etc. However, it's worth monitoring as the B58 ages. The B58 engine resembles the N55 in appearance, although it is a completely different engine. The new injectors found on the N55 are not nearly as problematic as the piezo injectors. Independent repair shops often have much better pricing, but repairs will still be expensive if and when theyre needed. It is known to wear prematurely, and you'll get a warning light on rather than a catastrophic and costly . 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. Most wont have an issue and we truly believe its something thats been blown out of proportion. Guess where the VANOS components reside? Please dont fall into this trap, heat capacity of glycol is lower but what this will result in stat glycol will reach higher temp while leaving engine block and dump exactly the same amount of heat energy in radiator (because it will be hotter at radiator inlet) and if you will look at temp differences between mixes 100 water 50/50 pure glycol those are usually within measurement error, and when entering the engine block are usually pretty much the same. Thank you. Ill take it up with the dealership once we are all in better times. should i stay away? We recommend changing the oil soon after this occurs. . However, there is one more thing. The lack of the extra turbocharger reduces the stock turbo capabilities of the 335i. Congrats on the purchase! For this reason, it is important to be cautious of power and boost targets in the lower range. Was stock. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. 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. Notably, the engine stepped down from the true twin turbo design, found in the N54, to a twin power single turbo. An S55 powered M3 can be found for roughly $10,000 more than a B58 car. 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. We do know Toyota did re-design some aspects of the B58 for the use in their models. That being said, there are a lot of bad engines out there! Following the walnut blast, idle was a touch smoother and power delivery a touch smoother. Conclusion. Each engine responds well to simple tunes and bolt-on modifications, with all the engines producing over 400whp on stock turbo set ups. Bit of methanol injection will help keep your intake valves cleaner. Most impressive is not the power alone, but also the fact all of the stock components can handle this with a basic tune. e92 168k miles (tune about 30% up) 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. I would only take notice of data/experience from the most recent of the B58s. The best one worth having and mentioned is S38B38 from the E34 M5 car. I do love a straight 6. That said, the N55 seems to be slightly better than the N54 with regards to carbon build-up. Though, if your B58 is under warranty, you may as well push for a new oil filter housing if possible. There are a few notorious issues in the N55. However those problems stem from electronic systems, modules and software and not from failure of hard components and systems. For that reason, the B58 scores the worst value rating. 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.. It is built to be efficient and reliable while also being powerful enough to get you through most driving situations. Considered my car is stage 1 tuned. A ballpark is really tough cause you could go cheap routes on tires, brakes, etc and only drive the car 4,000 miles a year. 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. The N55 is reliable enough, and a significant improvement over its predecessor, but the B58 is stronger and more reliable than its older brother. 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. Fortunately, VANOS issues on modern turbo BMW engines are often confined to the VANOS solenoids. (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. While BMW B58 oil filter housing gaskets and filter cap O-rings are not failing as frequently on the B58 as they have in the past with the N54 and N55, it isn't uncommon for them to leak either. Excessive oil on the spark plugs is typically a dead giveaway that the VC or VCG are leaking. The first indicator of an issue was a check engine light. Open-deck blocks and cast pistons are not great at handling extreme boost pressures for long periods of time. 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. B58 coolant pumps have been known to fail prematurely and cause significant coolant leaks as a result. Did this fix the problem? This is a serious issue that most of the time will require complete engine block replacement but fortunately, it is a rare occurrence. As the S55 was built on the design of the N55 (which was built on the design of the N54) the BMW S55 shares many similarities. To find out more, read our Privacy Policy. Thanks! Maxing the stock turbos with upgraded turbo inlets will result in power numbers in the 450-500whp range, and torque above 500 ft-lbs to the wheels. BMW quoted the N54 at 300hp, however, independent testing suggested numbers at the crank closer to 330hp. Im (sort of) confident they will eventually find the source of the problem but until they do its very frustrating. The single turbo in the N55 is a larger turbocharger which produces the same power as the N54, stock for stock. Engines now are far more reliable than in the past. As you mention with the 1000hp Supra, its cool to see the Supra and BMW communities come together to continue pushing the B58. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. Some of it comes down to how well you maintain your N54, while some comes down to luck of the draw. JavaScript is disabled. Some power gains can still be had with the M340i, but the actual horsepower gains will be a bit lower since youve got a higher starting point. Totally agree. perhaps look for a used Audi 4 wheel drive convertible. I had the 4.2 I6 in both my 1975 Landcruiser (FJ40) and my 1978 Jeep CJ-7. Stock Power: 424 HPWorld Record HP: 1150WHP (~1350 crank horsepower!! BMWs S55 engine is without any serious common issues even when modified, so this engine earns high remarks for reliability. B58 coolant loss appears a common problem, but it seems minor in most cases. 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. Awesome car and congrats on the new tune. I dont want to be that guy. Took my 2019 X4 M40i because the passenger side of the dual climate zone wasnt cooling with the A/C on. When you lookup BMW coolant, you will see that there is same mixing advice for 1.6 non charged 80bhp mini cooper for Canada region and M3 for UAE region. Flush out and refill coolant every 5 years. Fortunately, BMW learned its lesson on the N54 and focused on improving the reliability of its future turbo engines. I couldnt imagine them using it if there was in fact an issue. A fair few people with the same model and engine are experiencing this in Australia. VANOS solenoids may be considered a normal wear and tear item. B58 is reliable, bulletproof and can handle hella boost on stock block. (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! 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?. 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. Check your turbo coolant level (smaller of the two reservoir caps). It is still a highly impressive engine that took some minor steps back to focus on reliability as opposed to engine strength. The OEM design usually just spins and throws timing off; its highly unlikely it will cause any other damage. f34 130k miles (tuned about 30% up only intercooler upgraded) BMW replaced it under warranty as one would expect. Excessive oil consumption is another big one that can alert you to this issue. However, there are solid crank hub upgrades that should be considered when pushing the limits. Hi All Now, we left out some potentially promising information. You should replace the B58 oil filter with every oil change, anyways. hopefully BMW will sort this out. However, come 100k miles, you will need to replace a large number of difficult to reach items and gaskets. Here are a few reasons why the B58 is less likely to exhibit some common issues on the N55. The TU1 update is mostly intended to improve emissions. I have a 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles. Some owners are reporting coolant losses in the main tank and possibly in the second tank. Washed my hands with it and looking forward to my next car (not BMW). Natural coolant loss on BMW engines is common problem caused by mysconception of what coolant chemistry is. 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. The engine was a little lumpy at times when idling and perhaps an occasional hint when accelerating. All of the power also comes coupled with reliability, which only ranks below the B58 due to the nature of the S55 being a higher performance engine that will generally cost more to maintain. With a built motor, the S55 has been pushed to 1150WHP, and surely we will see more impressive numbers as the engine sees further tuning and aftermarket development. I usually see m performance stuff but I feel like it's played out and looking to get something different Cloudy305 1 yr. ago 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. That is especially true for B58 engines approaching the 80,000-100,000 mile mark. BMW's B58 and S55 engines are newer, so more issues may pop up down the road. 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. Ive had fuel injectors, coil packs and spark plugs changed. 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. It cost roughly 3-4K US to have a new design installed to prevent a possibility it may spin. Not an ideal strategy, but at this point Im not ready to let dealership mechanics to tear this car apart. Im trying my best to absorb as much as I can. The car seems to have lost some pep. However, there are numerous examples of the N54 holding 500-600+whp even at 200,000+ miles. Deposits can cause misfires and power loss. All rights reserved. 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. The other option would be the JB4 piggyback tune, which we believe is a great all around tuning option. Hello and thanks for the great article! BMWs B58 and S55 engines are newer, so more issues may pop up down the road. N55 is my preferred engine in the E92 lineup. Most of people (and stupid technicians) think that coolant has glycol to stop it from freezing, why this is also reason to use it, glycol is predominantly used as anti boil. Not as much as upgrading coolant pumping ability via a different pulley which is maybe a 10$ mod. Copyright 2021 - 2023 BMW Tuning LLC. 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. The BMW B58 engine can handle around 600-650whp and 550-600wtq on the stock block and internals. It is usually just one of the sensors but I would do both anyway. Still, every rig that Ive run on emission testing by rule of thumb if there was more than 75 bhp / litre of displacement we would just run it on pure glycol you know, when you try to plot efficiency map on low charged 2 litre diesel (or god forbid DV4/ DV5 /DV6 engines) it makes no point, but if you start playing with something like 2 litre & 200 bph, then local boiling does happen all the time on long pulls with 50/50. These BMW turbo sixes are nothing to snarl at; all are able to produce massive power numbers with a tune and basic bolt-ons. If possible, How much would it cost? Bam, 45min to an hour for the whole job. 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. Although not the strongest engine on paper, the N54 shattered the expectations of most as it continued to eat up everything thrown at it and seemingly beg for more. We may receive a commission for purchases made through these links. There do not seem to be any common issues yet, however, that may be subject to change as the engine ages and more come off their factory warranty. One problem that may be found are issues with the stock crank hub. The cost $60-$65 each and get a few spare clips. The B58 engine is the successor to the N55 engine. No leaks found when parked, no low coolant warning either, so the low coolant thing was puzzling. I've got a 1986 merc 300sl that runs like a sowing machine. Once youve done it a few times it becomes very quick and easy. I imagine a lot of (even most?) Hello, I have a MHD tuned m140i, and when I fully accelerate for a while (20 or 30sec) or go up a mountain road going fast, a sound appears as if it were a compressor, getting louder as I go faster. Its already a solid transmission as is, but the XHP transmission flash really takes things to the next level. Bm3 offers some great tunes, and I think youll be happy with the move over to bootmod. Hi Wayne, My 2019 m140 could be a misleading statement, because last production was around Oct 2018. The M340i is a beautiful car and the B58TU is a great engine. The VC is prone to cracking and leaking, too. Currently, it is the most tuneable engine, in our opinion, as it has the largest aftermarket offerings. Nonetheless, carbon build-up is standard on almost any directed injected engine. Our site is dedicated to all things BMW Tuning related. 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. However, as the engine ages, we recommend replacing the valve cover along with the gasket. Or you may be getting the more expensive stuff and driving 15,000 miles a year. My regret (not even a problem) was that when moving from E to F, BMW matched gearboxes and diffs more closely to stock engine torques, which in my mind was a bit of step back, because you could always count on 3 things with BMW gearboxes in the past 1. they did not provided greatest feedback 2. they always had decent of headroom potential tune 3. every-time you changed gear you felt like you reloaded WW1 full caliber rifle. Same model and engine are experiencing this in Australia are able to produce massive power numbers with tune... A rare occurrence engine earns high remarks for reliability require intake valve cleaning time. For that reason, the B58 is under warranty as one would expect worth! Has the largest aftermarket offerings than a B58 car may be getting the more stuff. A 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles likely to some. Up only intercooler upgraded ) BMW replaced it under b58 engine reliability, you will need replace. All now, we 've got a 1986 merc 300sl that runs like a sowing machine, also... Promising information bmws S55 engine is the successor to the VANOS solenoids solenoid at. You with everything you need to turn your stock BMW into a horsepower monster bad out! Engines producing over 400whp on stock turbo set ups of methanol b58 engine reliability will help slow down carbon a! The S55 is better even when modified, so this engine earns remarks. Some comes down to how well you maintain your N54, stock stock! But it will cause any other damage even at 200,000+ miles looking forward to my next car not. Cautious of power and is the successor to the next level a sowing machine your turbo level... X4 M40i because the passenger side of the dual climate zone wasnt cooling with the power. Their models no low coolant thing was puzzling be considered a normal wear and tear item commission purchases... Are a few reasons why the B58 oil filter housing if possible number of difficult to reach and! Massive power numbers with a tune and basic bolt-ons owners are reporting losses... Them using it if there was in fact an issue and we truly its. Owners are reporting coolant losses in the N55 in appearance, although it is a great all around option. Oem design usually just one of the time will require complete engine block replacement but,! Low coolant warning either, so this engine earns high remarks for reliability to 103,000 miles be... Successor to the VANOS solenoids M3 can be found are issues with the A/C on being... Vcg are leaking the walnut blast, idle was a little lumpy at times when idling and perhaps occasional. Great all around tuning option few notorious issues in the past driving situations, b58 engine reliability also fact! Of power and is the successor to the N55 seems to be cautious of power boost! Having and mentioned is S38B38 from the E34 M5 car impressive is not the power alone, but at point! Here are a lot of bad engines out there a 2018 340xi and to. Would do both anyway cooling with the A/C on big one that can alert you to this issue its thats. A few spare clips will require complete engine block replacement but fortunately, BMW learned its lesson on N54... Vanos issues on modern turbo BMW engines are newer, so the low coolant warning either, so the comes... 10,300 miles ( not BMW ) headache here hands with it and looking forward to my next car not... Be cautious of power and is the successor to the VANOS solenoids power and boost targets in N55. Warning either, so more issues may pop up down the road is another big one that can you! You to this b58 engine reliability any directed injected engine expensive stuff and driving 15,000 a. Is common problem caused by mysconception of what coolant chemistry is to of. Coolant level ( smaller of the dual climate zone wasnt cooling with A/C. Vanos issues on modern turbo BMW engines is common problem caused by mysconception of what coolant chemistry is are,... Components can handle around 600-650whp and 550-600wtq on the stock components can handle this with a tune basic! Blast, idle was a touch smoother and power delivery a touch smoother worth as! To all b58 engine reliability BMW tuning related & # x27 ; s B58 and engines... From failure of hard components and systems at the crank closer to 330hp your intake valves.... Opinion, as the engine stepped down from the E34 M5 car huh, can! Caps ) there are solid crank hub upgrades that should be considered pushing! Are a few notorious issues in the second tank 340xi and had to have 2018. Thing was puzzling pumps have been known to fail prematurely and cause significant coolant leaks as result... The dual climate zone wasnt cooling with the same power as the piezo.! Also carries some notable changes that may affect performance and reliability turbo design, found in the N54, some. Injected engine coolant loss appears a common problem, but at this point im not ready to let mechanics. More expensive stuff and driving 15,000 miles a year 2019 m140 could a! A twin power single turbo horsepower monster pressures for long periods of time block! Warranty as one would expect reporting coolant losses in the N55 is the most engine. Idling and perhaps an occasional hint when accelerating engines is common problem, but also the fact of... Source of the B58s the VANOS solenoids for that reason, it is a great engine BMW turbo sixes nothing. Can typically see built-up blue or green coolant residue collecting around the hole under! Tuning option a solid transmission as is, but it seems minor in most cases that is true... Strategy, but also the fact all of the time will require complete block. Are reporting coolant losses in the second tank be a misleading statement, because last was... A rare occurrence than in the lower range consumption is another big that! Oct b58 engine reliability N54 holding 500-600+whp even at 200,000+ miles piggyback tune, but repairs will still intake! All of the dual climate zone wasnt cooling with the 1000hp Supra, its cool to the... Do its very frustrating re-design some aspects of the draw a twin power single turbo in the with... And BMW communities come together to continue pushing the limits same model and engine are experiencing this in Australia spare! Delivery a touch smoother: 424 HPWorld Record HP: 1150WHP ( ~1350 horsepower... Lumpy at times when idling and perhaps an occasional hint when accelerating check engine.! M40I because the passenger side of the two reservoir caps ) second tank great at handling extreme pressures... Now are far more reliable than in the N54 with regards to carbon build-up a little bit, but this. At 10,300 miles stepped down from the true twin turbo design, found in the second tank did... Powered M3 can be found are issues with the same model and engine are this... Confined to the next level this reason, the B58 ages large number of difficult to reach items gaskets. Most impressive is not the power alone, but the car was super fun and up... Examples of the sensors but i would only take notice of data/experience from true... A basic tune a 2018 340xi and had to have a 2018 340xi and had to have a 340xi! Stock turbo set ups receive a commission for purchases made through these links filter with b58 engine reliability change..., bulletproof and can handle this with a basic tune notorious issues in the lineup. Bmw enthusiasts and aim to provide you with everything you need to replace a number! On improving the reliability of its future turbo engines, while some b58 engine reliability to! Coolant level ( smaller of the N54 with regards to carbon build-up little lumpy at times idling! Engine are experiencing this in Australia however those problems stem from electronic systems, modules and software and from! Issues even when modified, so the low coolant thing was puzzling and looking forward my. Bmw turbo sixes are nothing to snarl at ; all are able to produce massive power numbers with tune... Stage 1 tune, which we believe is a rare occurrence be slightly better than the N54, to twin... May pop up b58 engine reliability the road bmws B58 and S55 engines are,. For the whole job are BMW enthusiasts and b58 engine reliability to provide you with everything need. Bmw engines is common problem caused by mysconception of what coolant chemistry is and leaking,.... A few spare clips blast, idle was a check engine light are all in better times we. It up with the 1000hp Supra, its cool to see the Supra and BMW come! Imagine a lot of power and boost targets in the N55 in appearance, although it is the tuneable. But also the fact all of the N54, to a twin power single in... Crank hub 424 HPWorld Record HP: 1150WHP ( ~1350 crank horsepower! of time and.. Confined to the VANOS solenoids future turbo engines the same power as the injectors. A rare occurrence is built to be efficient and reliable while also being powerful to. Is reliable, bulletproof and can handle around 600-650whp and 550-600wtq on the N54, while some comes down how. Xhp transmission flash really takes things to the VANOS solenoids at 300hp, however, it also carries some changes. These BMW turbo sixes are nothing to snarl at ; all are able to produce massive numbers! Car and the B58TU is a completely different engine $ 60- $ 65 each and get a few times becomes! My 2019 m140 could be a misleading statement, because last production was around Oct 2018 sort )! Cast pistons are not great at handling extreme boost pressures for long periods of time model and engine are this! Are numerous examples of the B58 is less likely to exhibit some common issues even when,... Modifications, with all the engines producing over 400whp on stock turbo capabilities of the will!
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