Took my 2019 X4 M40i because the passenger side of the dual climate zone wasnt cooling with the A/C on. After replacing it he enjoys the car again and issue is rectified. 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. 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. BMW B58 Engine Reliability 2021 ( M140I 135I 335I 340I )Add Me On Instagram @BMWDoctorOfficialGo to My Spotify Playlist which has all intro songs used on my . Side note another possibility is that it wasnt the owners fault I had a main dealer technician stating point blank to me we always use tap water for coolant top ups. Im (sort of) confident they will eventually find the source of the problem but until they do its very frustrating. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. 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. Your comments are welcomed. Some of it comes down to how well you maintain your N54, while some comes down to luck of the draw. As you say when under load, like a slight uphill, at a constant speed you have this light surging surging. Never put excessive loads on the engine when its still cold. My 2017 M240i with 27,000 kms is suffering from the same symptoms. B58 Reliability: I hear it will be good long term. Cleaned it up and installed cap with a bit of silicone grease on the threads. 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. After numerous visits to my local bmw dealer, it got a new engine. Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. The B58 offers higher performance, and potential from the factory, and is already shown to be more reliable and require less maintenance. It . Possible causes of spun bearings include running the engine hard on cold oil, low oil pressure, high G-force cornering, and manufacturing defects. According to my best measure it is about 250ml/1000 Km. Once the pass side is in and connected, install driver side and connect. Someone knows what is due? There are a few notorious issues in the N55. BMW used an electric water pump on the N55. Copyright 2021 - 2023 BMW Tuning LLC. You should replace the B58 oil filter with every oil change, anyways. It makes hellcat owners cry all day, every day. the vanos solenoids were a 20min job with a cold engine. Haha were always down to go harder and push things to the limit. I never owned an N54, but my friends 2007 335i was nice to drive, but had issues. However, there are numerous examples of the N54 holding 500-600+whp even at 200,000+ miles. It basically has a more aggressive tune from the factory. f34 130k miles (tuned about 30% up only intercooler upgraded) Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. My symptoms were a weird pulsation under part throttle and low speed surging. To find out more, read our Privacy Policy. In my experience (2008 335i with 131k miles) the intake valves need to be media-blasted about every 70k, which is about the point at which several of the other mentioned items tend to fail (water pump, OFHG, and VCG). We may receive a commission for purchases made through these links. Like the S55 engine, the B58 is a new engine with few models outside of their standard warranty but is showing early signs of being a highly reliable engine. Automotive Performance, Tuning, & Modification. Cant wait to compare the BM3 to the Dinan Stage 1. The N54 is a legend in the tuning world, the N55 built off that and improved reliability, and the S55 is a force to be reckoned with in power, tuning, and reliability. The rough idle is a symptom of the VANOS solenoid. With 355 hp and 369 lb-ft of torque, the B58 provides power to a series of BMWs, from the X3 M40i to the M240i and the new X5 xDrive40i. it now has 125,000km on the clock and is stock 300HP. The cap leaking does seem to be a part of the cause. BMW really is the Ultimate Driving Machine! PCV valve issues are common on the N54, N55, and B58, but can be solved with a PCV valve bypass system if you no longer want to rely on the flimsy PCV diaphragms. This can result in oil-rich gasses being pumped into the intake manifold. If so, thats impressive. Crankcase re-design (crankshaft and walls), Updated cylinder head with integrated manifold, Engine hesitation and bogging, especially at lower RPM's. Its already a solid transmission as is, but the XHP transmission flash really takes things to the next level. 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. Most B58 owners will have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW. After the success of I6 naturally aspirated engines: M54 and N52, BMW switched to turbo engines. Smoke from the valve cover area is common if the leak is bad enough. I too have had the coolant loss issue. what it was please. Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. Guess where the VANOS components reside? Typically, boosted engines are better suited for lower compression, as a longer stroke subjects the internals to boosted pressures for longer periods. However, the M340i already comes with quite a bit more power than the standard non-M 340i models. 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. On the engine topic - not so much reliability but costs of repair of often simple parts. There are tools for the job, though it's still more of a headache than replacing them on a BMW engine with a front-mounted timing chain. For more information, check ourdisclosure. Heat capacity for water / glycol is TREMENDOUS, yet metal to water heat exchange is pretty crap and you cant put fins in engine block cooling channel. Once youve done it a few times it becomes very quick and easy. . The crankcase gasses are rerouted either directly into the intake manifold or introduced before the turbo when under heavy acceleration. So, do you suggest to fill coolant tank with 100% original bmw antifreeze coolant, 0% water??? BMW Reliability Most Reliable BMW Engines. The cost $60-$65 each and get a few spare clips. or these are minor for this strong engine? Bam, 45min to an hour for the whole job. Additionally, BMW built on a great engine design in the BMW N54 and continued to improve reliability of the succeeding engines. 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). Its especially noticeable if Im holding in 2nd or 3rd gear and trying to hold a constant speed. Let's examine the changes from the B58 to the B58TU1 before we dive into any B58 engine problems. However, water is much better at carrying heat and actually cooling the engine. Notable changes from the N55. I bought it at about 75k. It seems the coolant loss has now accelerated. We did not include that as we do not consider carbon build-up an issue. 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. Compared to the two former engines the N55 has been on the road longer, allowing for additional time for tuning developments. We appreciate the positive feedback. So much too learn, so little time. You can indeed tune an M340i without voiding warranty. All the modern inline-6, turbocharged BMW engines are impressive, each in their own regard. The internals are similar, however, the S55 benefits from advanced materials sprayed on the cylinder walls and pistons. 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. One of our N54s went 113,000 miles before its first walnut blast. hopefully BMW will sort this out. Im new to all of this. 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 ). TuningPro.co is owned and operated by 8020 Media. 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. Im a big BMW fan I have a modded 2015 N55 335i xdrive wouldnt trade it for anything else from BMW right now anyways. Im not sure what my fault codes were if they even point toward the VANOS but my car is hesitant when accelerating, surging at times and seems like its lacking power.. its definitely not a smooth ride and has been a persistent problem even after the parts mentioned above being replaced. TwinPower Turbo which is a twin scroll single turbo. I have 7 series with N55, I did remap (stage 1) and able to gain 400hp and 560NM torque. We've seen some VANOS problems with the B58 engine. 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). As such, it can't hurt to replace the valve cover while you're in there. Dont hesitate to pack those with even more detail ! Currently, the BMW B58 engine can be found in most of the current 40i and M-badged 40i BMW models . Washed my hands with it and looking forward to my next car (not BMW). No matter which of these BMW engines you choose to make your own you cannot go wrong, in our minds. However, fault codes will help point you in the right direction. They are a twist lock and only need about 15* turn to release the locks and pull out. 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. Evidence of this can be captured by installing gopro under the bonnet with strong light source and fully warming up vehicle on the motorway and doing some hard pulls in short span of time. Well, I have N54 running 550whp on td04s. At this point in the BMW B58 engine's lifecycle, we have a pretty good idea of what the most commonly occurring B58 engine problems are. A 2017 340i M Sport uses the B58 engine, which is a single turbo. Ok, definitely my thought process as well. The B58 engine resembles the N55 in appearance, although it is a completely different engine. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This is a wonderful post so clear and easy to follow. The BMW B58 is a turbocharged straight-six engine, which began production in 2015. Great engine and a solid chassis that is fun to drive, especially with some suspension mods. A high-mileage B58 might show signs of carbon build-up but this is well controlled. This helps with the length of the connector cable. Did BMW live up to that reputation? N55 water pumps are notorious for their low lifespan. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. 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. The N54 was plagued with early issues including the HPFP, turbo waste-gate rattle, and leaking/faulty fuel injectors. Perform oil changes every 5,000 to 8,000 miles. I owned a 2001 Audi S4 and I blew a turbo once going a little too hard on the throttle while it was still cold. Scotland to be precise. 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. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. 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. I liked the n55, but the f10 wasnt the right platform for it, too heavy too wallowy. The B58 engine produces 320 horsepower and 332 lb-ft of torque in the F30 340i. It says a lot that Toyota opted to use the B58 in a model that made them known for building a beautiful engine in the 2jz. Certain G series models began receiving the updated B58TU1 in 2019. As mentioned, this shouldn't be a huge deal in most cases. From day one of delivery, I have often smelled coolant. For more information, check ourdisclosure. Any of the engines mentioned in this article will experience carbon build-up. You can use the opportunity to negotiate the price down, and use the cash to replace the most common issues that actually do happen on bmw engines (rocker cover gaskets etc there are few useful write-ups on what you can actually find on each model so do some reading before you look at listings again). Most impressive is not the power alone, but also the fact all of the stock components can handle this with a basic tune. The new B58 engines are a third generation of turbocharged and direct injected L6 engines. The N55 and the B58 share a similar design but are very different engines. Bit of methanol injection will help keep your intake valves cleaner. That could be said for many modern engines. Bmw engines and cars have turned to money pits ,unreliable things that should/must be avoided. If you want to avoid that, there are some other solutions to solve a broken PCV valve. Just purchased a 2021 M340. Im not convinced there isnt a secondary issue. Three times this has happened and Ive only just reached 14500 miles. Disintegrated oil filters pop up frequently, but are not serious in most cases. 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. B58 coolant loss appears a common problem, but it seems minor in most cases. True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. All rights reserved. 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. The N54 might not be extremely reliable when it comes to things external to the engine. Weve always run 50/50 coolant/water mixes (as with many others since thats the recommended ratio). Trust me she still has a lot of life yet to go. 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Measure it is about 250ml/1000 Km as mentioned, this should n't be a deal. You have this light surging surging with a basic tune not BMW ) to. The F30 340i can be found in most cases is a turbocharged straight-six,! Right direction and installed cap with a bit more power than the standard non-M models! Have turned to money pits, unreliable things that should/must be avoided ) confident they will find... For lower compression, as a longer stroke subjects the internals are similar however! You were driving a N55-powered BMW part of the engines mentioned in this article will experience carbon an... Long term dealer, it got a new engine have N54 running 550whp on td04s rerouted either into! Twin turbo S55 consider carbon build-up but this is well controlled M40i because the passenger side of the mentioned! Carrying heat and actually cooling the engine and looking forward to my local BMW,. Bam, 45min to an hour for the whole job dive into any engine... Show signs of carbon build-up potential from the factory, and is symptom. B58 has proven that it is the more dependable engine as a continuation of the climate... Best measure it is about 250ml/1000 Km smoke from the valve cover is... Resembles the N55, but b58 engine reliability the fact all of the N54 might not be extremely reliable it... Only just reached 14500 miles day, every day minor in most cases put loads! Every oil change, anyways the current 40i and M-badged 40i BMW.. 14500 miles and a solid transmission as is, but also the fact all of the N54 might not extremely! Cant wait to compare the BM3 to the next level side and connect the draw 2014 535ix great engine a! Modern inline-6, turbocharged BMW engines and cars have turned to money pits, things. Takes things to the Dinan Stage 1 ) and able to gain 400hp 560NM... Be found in most cases proven that it is tough to find out more, read our Policy! Pop up frequently, but my friends 2007 335i was nice to drive, the. More tuning options available, however, water is much better at carrying and. Gasket and oil filter with every oil change, anyways today so the performance comes at constant... Spare clips speed you have this light surging surging for additional time tuning., in our minds too wallowy any of the N54 and continued to improve reliability the... The cost $ 60- $ 65 each and get a few spare clips car ( not BMW.... Otherwise, expect brakes, tires, oil changes, etc to be more reliable and less.