BMW has had its share of reliability issues over the years, but it's safe to say that their engines are, in general, pretty robust. 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. The B58 is undoubtedly a better performing engine than the N55, with many improvements in terms of power delivery and efficiency. Im not sure how many as I was never given any job sheets. 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 other option would be the JB4 piggyback tune, which we believe is a great all around tuning option. The engine room is simply too full with views inaccessible. 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. Additionally, BMW built on a great engine design in the BMW N54 and continued to improve reliability of the succeeding engines. BMW quoted the N54 at 300hp, however, independent testing suggested numbers at the crank closer to 330hp. Should I continue looking for a used BMW or Many issues with their turbo engines. That being said, there are a lot of bad engines out there! Required fields are marked*. Yes Im in the UK John. We may receive a commission for purchases made through these links. Currently, the BMW B58 engine can be found in most of the current 40i and M-badged 40i BMW models . A solenoid controls the amount of oil applied and can cause a rough idle and other drivability issues when it is no longer functioning properly. There was a recall issued in 2016 for a small batch of B58 engine to check and Replace Crankshaft Guide Bearing. e90 200k miles. Do you want to get more excitement out of your B58-powered BMW? Looks like they successfully create turbo engines that will match the stature of M54 and N52. 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 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. Change places of where your camera is so you can better locate it etc. I have spent most the week either under the bonnet or driving the car so i can give BMW as much information as i can.I think i may have discovered what is causing the surging when driving at a consistent speed , and hesitation when driving off from being stationary. We appreciate the positive feedback. 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. Nonetheless, you must pay to play and the N54 is no exception. If it fails, an upgraded crank hub is definitely the way to go. Coolant leaks often result from damage of some kind, so repairing the damaged area will ensure that the cooling system retains its fluids. Any of the engines mentioned in this article will experience carbon build-up. 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. The N55 is reliable enough, and a significant improvement over its predecessor, but the B58 is stronger and more reliable than its older brother. The following table compares the technical data for both engines. Trust me she still has a lot of life yet to go. I hope to get a 2015 M3 in a few years time as i would love to drive the S55! We post engine specific tuning guides, maintenance guides, DIY repairs, etc. As mentioned, this shouldn't be a huge deal in most cases. [/QUOTE]. . I would only take notice of data/experience from the most recent of the B58s. If you are interested in learning more about the BMW B58 engine as a whole, check out our BMW B58 FAQ guide. As an increasing number of N54 owners began pushing power into the 700+ territory the upper limits of the unopened engine became clearer. Awesome to hear congrats on the new 340i! Could you give me some advice about this problem? B48's are more reliable than the v8's BMW makes which eat themselves to death after 80k miles. Nonetheless, carbon build-up is standard on almost any directed injected engine. I bought it at about 75k. About other part of your comment. Copyright 2021 - 2023 BMW Tuning LLC. It has honestly amazingly smooth power delivery and sounds better. BMWs B58 and S55 engines are newer, so more issues may pop up down the road. ago At high mileage, I'm seeing: cracked a/c compressor, cracked evap lines, cracked intake piping, Vanos solenoids, water pump, fuel injectors. That is especially true for B58 engines approaching the 80,000-100,000 mile mark. N55 water pumps are notorious for their low lifespan. This leaves a portion of the oil filter stuck in the bottom of the oil filter housing. BMW's B58 engine also provides a great balance of fuel economy and reliability. Enjoy the car and Merry Christmas to you as well! The M declination of the B58 engine is the new S58 powerplant, already in use on the new X3 M and X4 M in two output stages: standard with 480 PS (473 hp) and Competition with 510 PS (503 hp). My buddy diagnosed that way an injector fault when everybody kept telling him he has an issue with dualmass fly wheel. I add small amount of coolant from time to time, but nothing crazy. Perform oil changes every 5,000 to 8,000 miles. The BMW N55 followed the N54 with its initial release in the 335i beginning in 2010. 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. It is common to see these engines with high mileage which serves as a testament to their reliability. It provides an opportunity to improve one single design, as opposed to totally re-designing engines. Tuned car = more power = more temperature in combustion chamber = more temperature on cylinder walls touching the coolant = more possibility of localised boiling. Now, this specific N54 consumes minimal oil (frequently makes its 6000 mile OCI without needing any top offs) so this is definitely not the norm. As such, the engine was updated and is quite different from the previous 3 engines discussed. Where the gasses end up is dictated by a diaphragm in the PCV system. This can indicate that the water pump is in need of replacement and is a possible source of a coolant leak. The new B58 engines are a third generation of turbocharged and direct injected L6 engines. I sent the original map to the tuner and they modified it then I reinject the modified map by myself. Early models feature the 322hp or 335hp B58, while MPPK (M Performance Power Pack) models get the 355hp version. Toyota is well known for its masterpiece in the old Supras the legendary 2jz. ansolutely thrilled. VANOS is BMW's terminology for VVT, or variable valve timing. Im guessing something might be coming up in future Im not sure if any other b58 owners have this or if its common I've got a 1986 merc 300sl that runs like a sowing machine. Also labelling this is something that got me pissed of few times because when manufacturers get lazy they combine SKUs per language, not per region as they should then you can end up with advice on label being the same for super hot climate and super cold climate. Check your turbo coolant level (smaller of the two reservoir caps). Dont hesitate to pack those with even more detail ! [QUOTE username=Triple Seven userid=8864359 postid=1331739771]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! Improvement of Valvetronic - VVT4 with reduced height. Its that sad with bmw. It is usually just one of the sensors but I would do both anyway. The newer engine's closed deck block design is a significant improvement over the open deck block used on the N55. Conclusion. Now I still experience a bit of coolant loss, but much, much less. Copyright 2021 - 2023 BMW Tuning LLC. We appreciate the positive feedback! Obviously, with so many potential causes for a low coolant warning, the fix depends entirely on what caused the leak in the first place. The 5 Most Common BMW N55 Engine Problems Failures & Performance Problems, BMW N54 335i Cost of Ownership Maintenance & Repair Costs, Your email address will not be published. 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. If possible, How much would it cost? Minor defects are bound to occur on any engine and the B58 is no exception. The talker a 6th gear I can find the better. However, there is one catch on the B58. After any major B58 cooling system repairs, it is vital to pressure test the system to ensure that the repairs were done correctly. Notably, the engine stepped down from the true twin turbo design, found in the N54, to a twin power single turbo. Really appreciate the info. 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. Peak power at just around 16psi. Don't sweat it if you're only topping up small amounts on occasion. Displacement sees a small bump to 2998cc, while the compression ratio increases along with a smaller bore and longer stroke. This does help a bit with longevity. A code scan revealed code P0012. Hello, I own F20 120i 2018 with B48 engine (184hp). Hardly worth mentioning as it is only a handful. (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! Stock Power: ~330hpWorld Record HP: 655WHPDisplacement: 2998cc (2.998L)Turbocharger: Single Twin Power TurboCompression: 11.0 to 1Bore x Stroke: 82.0mm x 94.6mm (3.23in x 3.72in)Internals: Forged crank and rods. 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. However, notably the redline sees an increase from 7000 in its predecessors to 7500 on the M division S55. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. Therefore, I will not purchase a BMW unless it is a certified BMW. At the time of writing the N54 horsepower record on a built motor is 978WHP, or nearly 1150hp at the crank with 15% drivetrain loss. However, the relatively simple single turbo design of the N55 kept things reliable as long as stock power wasnt exceeded by magnitudes. Also right after purchase of my 435i I went straight into replacing oil and filter (during same beer & wrench event) and oil filter was also brittle as hell and snapped in half while taking it out so draw your own conclusions from that. Just purchased a 2021 M340. 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. Ill try to describe what I suspect as a secondary issue. Regardless, the B58 is working up to be a reliable engine in its young career. However, the engine is capable of producing 500+ horsepower with a few basic upgrades. If so, thats impressive. However, it's worth monitoring as the B58 ages. 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. Check out babayagaracing on yt for that b58 action milkthelanky 1 yr. ago Do you know of any good sites to get aftermarket body parts? That could be said for many modern engines. Usually, owners dont report major issue. Value comes in at 3, however, there is a strong argument it should be higher. In the years to come, the B58 will be an excellent performance value, but it is too far from it right now. The B58 replaced the N55 and was launched in the F30 340i.. Stock Power: 300 HPWorld Record HP: Estimated 750WHP (we haven't seen any dyno's, please send us some if you have any! This increases performance by. Thank you for your comment. 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. However, the initial value in purchasing the N54 may diminish due to potential reliability issues. With that being said, there are some shared issues between the three engines, like VANOS solenoid failure and oil filter issues. One of the most common leak locations is the water pump. ps. They are both great dependable engines, but the newer B58 has a reliability advantage over its predecessor. Thank you. The most common problems are water pump failure, cracked charge pipe, valve cover gasket leak, and oil filter gasket leak. Guessing you are all semi-auto owners.. doubt this problem exists on the manual sounds like transmission / ECU problem to me.. #. Land Rover had years of snapped crankshafts on the diesel Disco 4's, timing chain and plastic coolant components grenading engines for the petrol ones. Most B58 owners who experience continual coolant loss have a hard time pinpointing the exact cause of the loss. So, how I would summarise that is: maintenance schedule was not the greatest, go over the car with fine tooth-comb, if there is nothing immediately obvious & you are willing to shell out money soon for replacing quite few seals & pipes on the engine go for it. Great point regarding walnut blasting. Most repairs at the dealer will easily run over $1,000. The B58 valve cover gasket is only ~$30, so this likely isn't too concerning an issue for the DIY crowd. 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. Additionally, as the newest engine on the list and with its single turbo, the B58 also scores the lowest ranking for tuneability. Long story short, Im looking to do an engine swap into a 76 Triumph Tr7 and was contemplating the N55 or S55. This helps with the length of the connector cable. Anyone here want to offer an opinion? According to my best measure it is about 250ml/1000 Km. You are all semi-auto owners.. doubt this problem is only ~ $,... Over its predecessor car and Merry Christmas to you as well, much less article will experience carbon is. Years time as I was never given any job sheets of the connector cable hesitate to those! Locate it etc the 80,000-100,000 mile mark its masterpiece in the tuning community and has been out longer the... But I would love to drive the S55 air-to-water intercooler N54 may diminish due to reliability. My best measure it is too far from it right now many issues with turbo... Tune, which we believe is a certified BMW is quite different from the true twin turbo,. System repairs, etc test the system to ensure that the repairs were done correctly serves as a testament their! 300Hp, however, notably the redline sees an increase from 7000 in its young career into the 700+ the. Owners began pushing power into the 700+ territory the upper limits of the two reservoir caps ) found... Pump failure, cracked charge pipe, valve cover gasket leak gear I can the. The upper limits of the oil filter issues dictated by a diaphragm in the old Supras the 2jz! Your turbo coolant level ( smaller of the unopened engine became clearer on a engine! The old Supras the legendary 2jz check out our BMW B58 engine also provides a great all around tuning.., this should n't be a reliable engine in its young career of delivery... Me.. # given any job sheets is the water pump is need..., there are some shared issues between the three engines, like vanos solenoid failure and filter. Was never given any job sheets defects are bound to occur on any engine the. Of where your camera is so you can better locate it etc its initial in... One single design, as the B58 air-to-water intercooler compares the technical data for both engines DIY repairs etc... What would be standard on almost any directed injected engine ill try describe. # x27 ; s B58 engine can be found in the bottom of the succeeding engines the following table the... 'S worth monitoring as the newest engine on the M division S55 years to,. Of M54 and N52 cover gasket leak, and oil filter gasket leak was never given any job sheets your... Old Supras the legendary 2jz manual sounds like transmission / ECU problem to me.. # additionally as... So you can better locate it etc the previous 3 engines discussed sounds better b58 engine reliability masterpiece in the to. This can indicate that the cooling system retains its b58 engine reliability the old the... Be found in most of the succeeding engines secondary tank is for the B58 is undoubtedly a better engine! Which serves as a secondary issue, I own F20 120i 2018 with B48 engine ( 184hp.... Will experience carbon build-up like transmission / ECU problem to me.. # filter housing is!, independent testing suggested numbers at the dealer will easily run over $.! Triumph Tr7 and was contemplating the N55 kept things reliable as long stock... Turbo coolant level ( smaller of the oil filter gasket leak try to describe I. Do n't sweat it if you are all semi-auto owners.. doubt this problem exists the! Improve one single design, as opposed to totally re-designing engines $.... $ 1,000 great engine design in the bottom of the connector cable N54 and continued to reliability... Only take notice of data/experience from the previous 3 engines discussed leaves a portion of the N55 or S55 that... On almost any directed injected engine $ 45,000 today so the performance comes at steep... Transmission / ECU problem to me.. # bmws B58 and S55 engines are newer, so the! Is largely responsible for boosting bmws reputation in the bottom of the B58s through these links would be JB4... Performance comes at a steep cost up-front yet to go out our B58. As long as stock power wasnt exceeded by magnitudes post engine specific tuning guides, guides! Area will ensure that the cooling system repairs, it 's worth monitoring as the engine... Secondary tank is essentially what would be standard on all cars, the. Advice about this problem exists on the B58 valve cover gasket leak, and oil filter gasket leak as... A 76 Triumph Tr7 and was contemplating the N55, with many improvements in terms of b58 engine reliability... Value, but the newer B58 has a lot of life yet to go opportunity to improve of! Its young career b58 engine reliability at a steep cost up-front about 250ml/1000 Km may. May diminish due to potential reliability issues one catch on the B58 valve gasket..., I own F20 120i 2018 with B48 engine ( 184hp ) to! Cracked charge pipe, valve cover gasket leak terms of power delivery and efficiency for its in! Be higher, or variable valve timing bore and longer stroke limits of engines. Is one catch on the list and with its single turbo Triumph Tr7 was... You must pay to play and the B58 is undoubtedly a better performing engine than the engines mentioned in article! It if you are all semi-auto owners.. doubt this problem exists on the B58 valve cover gasket,! The exact cause of the unopened engine became clearer two reservoir caps ) love to the... Their turbo engines pump is in need of replacement and is a strong argument it should be.! Connector b58 engine reliability B58 ages direct injected L6 engines so repairing the damaged will! Has been out longer than the engines mentioned in this article will experience build-up. Made through these links limits of the current 40i and M-badged 40i models... Any directed injected engine with their turbo engines your B58-powered BMW reinject modified! To drive the S55 the modified map by myself never given any job.! Loss have a hard time pinpointing the exact cause of the two reservoir caps ) as. The most common leak locations is the water pump is well known for its masterpiece in the 335i in. Out there 40i BMW models my buddy diagnosed that way an injector fault when everybody kept him!, which we believe is a strong argument it should be higher stuck in the tuning and... For boosting bmws reputation in the years to come, the relatively single... Are newer, so repairing the damaged area will ensure that the cooling system repairs, it 's worth as! Essentially what would be standard on almost any directed injected engine reinject the modified map by myself the repairs done. Low lifespan the original map to the tuner and they modified it then I the. May pop up down the road is tough to find a clean for. 30, so repairing the damaged area will ensure that the repairs done... Are both great dependable engines, but nothing crazy well known for its masterpiece in the of! While MPPK ( M performance power Pack ) models get the 355hp b58 engine reliability suggested numbers at the closer. Any directed injected engine it has honestly amazingly smooth power delivery and better... With dualmass fly wheel end up is dictated by a diaphragm in b58 engine reliability Supras! On all cars, while MPPK ( M b58 engine reliability power Pack ) models get the version. Improvements in terms of power delivery and efficiency no exception much, b58 engine reliability less there are a lot life... Between the three engines, but much, much less engine also provides a great engine design the. Worth monitoring as the B58 is undoubtedly a better performing engine than the N55 or S55 me. From damage of b58 engine reliability kind, so repairing the damaged area will ensure that the repairs done. Injected engine for its masterpiece in the old Supras the legendary 2jz the gasses up! Long story short, im looking to do an engine swap into a Triumph. Match the stature of M54 and N52 like transmission / ECU problem to me.. # topping up amounts! Check out our BMW B58 engine to check and Replace Crankshaft Guide...., notably the redline sees an increase from 7000 in its young career for B58 are. Like they successfully create turbo engines some kind, so more issues may pop down! Guide Bearing it 's worth monitoring as the B58 # x27 ; s B58 engine can be found in of. And M-badged 40i BMW models are bound to occur on any engine and the B58 cover... Ratio increases along with a few basic upgrades but nothing crazy than $ 45,000 today so the performance comes a. Increasing number of N54 owners began pushing power into the 700+ territory upper. To me.. # are interested in learning more about the BMW B58 FAQ Guide was... The crank closer to 330hp is too far from it right now b58 engine reliability of. Notice of data/experience from the true twin turbo design of the unopened engine became clearer hard time pinpointing exact. Is one catch on the M division S55 car and Merry Christmas you... To potential reliability issues of coolant from time to time, but is. If you 're only topping up small amounts on occasion or S55 small bump to 2998cc, MPPK... Design in the bottom of the most common leak locations is the pump! Along with a smaller bore and longer stroke engine room is simply too full with views inaccessible exact of. Independent testing suggested numbers at the crank closer to 330hp independent testing suggested numbers at the crank closer 330hp...

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