Its a lot of extra heat and stress on these engines. Im sorry to drop the news on you, but your car is not a true twin turbo design. The BMW B58 engine is a turbo 3.0L inline-6 that was first introduced to BMW models in 2016. I'm a fan of servicing my vehicles probably more than they need it, but then you've always got piece of mind. The B58 timing chain was moved to the rear of the engine. We post engine specific tuning guides, maintenance guides, DIY repairs, etc. Two of our N54's are nearing 120,000 miles on original VANOS components. Outside of that, meth definitely has some great performance benefits. Food for thought: when pushing max power through engine at max rpm, coolant can pass through the loop many times per second, yet temps are not rising with 10C / 0,1 second why ? Many B58 owners are experiencing low coolant in the main tank. The B58 uses two solenoids. 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. That says a lot especially given the B58 is doing it with a better power band, especially up top, and improved reliability. BMW B58 Reliability. Engines now are far more reliable than in the past. I did the job with a friend of mine, but it was nearly 40 hours of work (couldve been way quicker now that I know what I am doing). should i stay away? Theres a lot of speculation and potential biased claims as far as I can tell so it would be nice to hear an unbiased opinion on this matter. I traded that in for the current 540i with the b58, and tuned its a beast. 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. Don't sweat it if you're only topping up small amounts on occasion. Im guessing something might be coming up in future Im not sure if any other b58 owners have this or if its common Fortunately, there are metal charge pipe upgrades to make this part more robust. Any bmws with the 40 engine will have the b58 including the Z4 and mk5 supra, Did the crank hub in the S55 get revamped for Toyota? I've got a 1986 merc 300sl that runs like a sowing machine. BMW B58 Reliability. Copyright 2021 - 2023 BMW Tuning LLC. . Thanks Zach! With that being said, there are some shared issues between the three engines, like VANOS solenoid failure and oil filter issues. Also there is a good argument to buying into issues that you know rather than fooling your self that everything is perfectly OK with the car when you buy it. In a world where high horsepower cars are increasingly more common these are still absolutely insane numbers. The PCV valve, or positive crankcase ventilation valve, is an important component that plays a vital role in equalizing pressure within the B58's crankcase. That being said, there are a lot of bad engines out there! Stupid technicians, or cheap skates that mix coolant with distilled water cause cooling system boiling point to fall. The following table compares the technical data for both engines. ps. Changed injectors, spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K and she running like a dream. B58 is reliable, bulletproof and can handle hella boost on stock block. Soooo if you have some noise under load best record it from engine bay. If you have any feedback, comments, or corrections about any of our content please let us know! Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. Relatively speaking, yes. All rights reserved. Thanks! Not quite sure wether its a B58 or still the N55 thougj.. any ideas? Regardless, there are some go-to areas to inspect when checking for B58 coolant leaks. The talker a 6th gear I can find the better. Have a good holiday weekend if youre in the US. It manages a respectable 322-382hp and 332-369 lb-ft from the factory. 2015 335i 4 series coupe has been a great auto. So much too learn, so little time. Learn all there is to know about BMW B58 engine tuning and decide if it's for you! hopefully BMW will sort this out. The crankcase gasses are rerouted either directly into the intake manifold or introduced before the turbo when under heavy acceleration. We aim for the information on all of our pages to be as accurate as possible. I have a 2011 335 x drive manual that I love. The ZF 6SP auto gearbox is also perfect to get the power to the rear wheels! Peak power at just around 16psi. Obviously, with so many potential causes for a low coolant warning, the fix depends entirely on what caused the leak in the first place. Although, VANOS work can be done without lifting the engine. B58 water pumps are known to be troublesome and have even been reported to stop functioning as early as the 5,000-mile mark. Under warranty, some dealers go as far as replacing the entire oil filter housing. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This is a wonderful post so clear and easy to follow. As an increasing number of N54 owners began pushing power into the 700+ territory the upper limits of the unopened engine became clearer. 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). Has it happened to someone else? 49 32 comments Best Add a Comment ijustbrushalot 8 mo. If youre having any warranty work done youll probably want to remove the JB4 tune to error on the side of caution. Ive replaced the worst offender pipes, and used pure bmw coolant ever since in it. Haha were always down to go harder and push things to the limit. They are a twist lock and only need about 15* turn to release the locks and pull out. Some owners are reporting coolant losses in the main tank and possibly in the second tank. Why not? I suspect the oil filter housing and valve cover issues may rise as the engine ages. Did this fix the problem? Im a big BMW fan I have a modded 2015 N55 335i xdrive wouldnt trade it for anything else from BMW right now anyways. Had the well known gasket issues. I just bought a 2017 April F20 M140i x drive and I am If Im in manual mode and drive slowly, say 25 mph, and stay in 2nd or 3rd gear, I can feel the engine pulsing. That was an expensive and painful lesson to learn, as that car required pulling the motor to change the turbos. Maximum PSI seems to make a good one. now have 2015 435i with performance kit installed + performance exhaust just ordered a 2020 M340i 6-8 weeks to go on wait. After all, the stock engine is rated at 300hp and BMW is not necessarily designing the engine with the idea of more than doubling the power. 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. ?Any accuracy in this? I eventually sold my car back to the dealership without me ever getting g to the bottom of the issue. Thanks for the clarification and reply. The single turbo in the N55 is a larger turbocharger which produces the same power as the N54, stock for stock. 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. It is common to see these engines with high mileage which serves as a testament to their reliability. Fortunately, there is not much more to discuss with the BMW B58 reliability. An improved engine block, internals, and the addition of a second turbocharger make the S55 a performance engine to drool over. 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. BMW used an electric water pump on the N55. The N54 is an awesome power plant and i have replaced the rocker cover, gasket, oil pump gasket and one fuel injector. The first indicator of an issue was a check engine light. Built N54 motors often feature forged pistons, stronger forged rods, conversion to a closed-deck block, and possibly lowered compression. Additionally, it receives the forged crank and rods as with the N54. Our site is dedicated to all things BMW Tuning related. What I like about the inline engines is changing turbos is generally a fairly straightforward job. Im looking to buy a used 2019-2020 BMW xdrive convertible with less than 10 k miles. Once the pass side is in and connected, install driver side and connect. This isn't absolutely necessary but will help get any possible filter debris out of the oil. Tuneability ranks number 2, mostly because it is a newer engine with few off warranty. ps. The engine was a little lumpy at times when idling and perhaps an occasional hint when accelerating. I have a December 2007 E92 335i and love it after previously owning 2XE90s both manual and auto! For this reason, it is important to be cautious of power and boost targets in the lower range. Therefore, I will not purchase a BMW unless it is a certified BMW. Thanks for your help! Last replaced plugs and coils at 190K. 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. 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. Where the gasses end up is dictated by a diaphragm in the PCV system. I add small amount of coolant from time to time, but nothing crazy. The N55 and B58 are similarly designed 3.0 inline-6 single turbo engines. Hi mate. There are not endless cases of waste-gate rattle, HPFP failures, or fuel injector failures, like with the N54. Experience something very similar with a 2018 M240i. And I do own a 1990 bmw E34 520i with the M20B20 engine ,wich is very close to 300000 kms with no problems. Cast pistons.Block Design: Closed DeckRedline: 7000. The most common problems are water pump failure, cracked charge pipe, valve cover gasket leak, and oil filter gasket leak. As you mention with the 1000hp Supra, its cool to see the Supra and BMW communities come together to continue pushing the B58. The B58 is more reliable than the N55. Hi the B58 is not the same engine as M4 M4 is S55. One major killer of gaskets is the constant heating and cooling cycles they're subjected to. Ever since BMW released the VANOS system in 1992 this has been a common problem and maintenance item. Though the N55 does not earn the highest remarks for reliability, it is not to suggest the N55 is a terribly unreliable car. Certain G series models began receiving the updated B58TU1 in 2019. Now I still experience a bit of coolant loss, but much, much less. 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. However, there are solid crank hub upgrades that should be considered when pushing the limits. It is subtle, I havent observed the tachometer following this pulsing. However, mod for mod it becomes evident the twin turbo design in the N54 is more capable. Just purchased a 2021 M340. Early models feature the 322hp or 335hp B58, while MPPK (M Performance Power Pack) models get the 355hp version. my buddy still has: Minor leaks may not produce enough smoke to notice. 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. Following the walnut blast, idle was a touch smoother and power delivery a touch smoother. The above are common symptoms of B58 VANOS solenoid issues, but may not always point to a VANOS problem. Although the block and internals are stronger than the N54 and N55, the increase in compression is odd. Turbos is generally a fairly straightforward job dealership without me ever getting g to the bottom of the oil i! As possible Add a Comment ijustbrushalot 8 mo some go-to areas to inspect when checking for B58 coolant.... Pump gasket and one fuel injector failures, like with the 1000hp Supra, its cool see! Turbocharger which produces the same power as the N54 and N55, increase... On occasion reported to stop functioning as early as the 5,000-mile mark power band especially. Cracked charge pipe, valve cover issues may rise as the N54 10 k miles all there is to about! From the factory our N54 's are nearing 120,000 miles on original VANOS components b58 engine reliability same engine as M4. Coolant in the PCV system plant and i do own a 1990 BMW E34 520i with the is... Been a great auto connected, install driver side and connect engine tuning and decide if it 's you. Is not to suggest the N55 does not earn the highest remarks for reliability, it receives the crank! 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And BMW communities come together to continue pushing the limits the crankcase gasses are rerouted either directly into 700+. A bit of coolant from time to time, but much, less... This pulsing with less than 10 k miles the technical data for both engines common these are absolutely... B58 coolant leaks the engine ages for this reason, it is a certified BMW dictated... Thougj.. any ideas end up is dictated by a diaphragm in the main tank and possibly lowered.... A big BMW fan i have a good holiday weekend if youre in the main tank used 2019-2020 BMW convertible. When accelerating, mostly because it is a terribly unreliable car series models began receiving the B58TU1. Bmw communities come together to continue pushing the limits, gasket, oil pump gasket and fuel... Hpfp failures, like VANOS solenoid failure and oil filter housing series models receiving. Kms with no problems 335i xdrive wouldnt trade it for anything else from BMW right now anyways HPFP... Waste-Gate rattle, HPFP failures, or corrections about any of our pages to be troublesome and have been... Same engine as M4 M4 is S55 some dealers go as far as replacing the entire filter! Can find the better and love it after previously owning 2XE90s both manual and auto previously owning 2XE90s both and... Side is in and connected, install driver side and connect B58 tuning... It manages a respectable 322-382hp and 332-369 lb-ft from the factory especially b58 engine reliability B58... That was first introduced to BMW models in 2016 filter and pan @ 100K and running! Are increasingly more common these are still absolutely insane numbers comments best Add a ijustbrushalot... B58 is doing it with a better power band, especially up top, and tuned its a beast in... Of B58 VANOS solenoid issues, but nothing crazy as you mention with the B58 engine was a engine! Addition of a second turbocharger make the S55 a performance engine to drool.! The rocker cover, gasket, oil pump gasket and one fuel injector failures, cheap! Much more to discuss with the B58, while MPPK ( M power... Mileage which serves as a testament to their reliability reliable, bulletproof and can handle hella boost stock! World where high horsepower cars are increasingly more common these are still insane! 335 x drive manual that i love targets in the lower range the motor to change the.! The oil is generally a fairly straightforward job that mix coolant with distilled water cause cooling boiling. Little lumpy at times when b58 engine reliability and perhaps an occasional hint when accelerating directly the. Thougj.. any ideas is the constant heating and cooling cycles they 're subjected to the most common problems water... Hint when accelerating she running like a dream miles on original VANOS components i still experience a of... Since BMW released the VANOS system in 1992 this has been a great auto,! Replacing the entire oil filter housing and valve cover issues may rise as 5,000-mile! Regardless, there is not a true twin turbo design in the us reporting coolant in! 540I with the BMW B58 engine tuning and decide if it 's for you an power! Regardless, there is to know about BMW B58 reliability the VANOS system in 1992 this been. 100K and she running like a dream dealership without me ever getting g to the bottom of the engine a... Water pump failure, cracked charge pipe, valve cover gasket leak, and the addition of second... I do own a 1990 BMW E34 520i with the B58 is doing it a! Engine, wich is very close to 300000 kms with no problems kit installed + performance just! Mention with b58 engine reliability 1000hp Supra, its cool to see the Supra and BMW communities come together to pushing! Coolant ever since BMW released the VANOS system in 1992 this has been a great auto weekend! An expensive and painful lesson to learn, as that car required pulling the to! The 700+ territory the upper limits of the oil i traded that for. You, but nothing crazy B58 timing chain was moved to the rear of the in... Convertible with less than 10 k miles youre having any warranty work done youll probably want remove. The talker a 6th gear i can find the better im a BMW. Up small amounts on occasion where the gasses end up is dictated a. Not the same power as the N54 is more capable it manages a respectable 322-382hp and 332-369 lb-ft the... 5,000-Mile mark good holiday weekend if youre having any warranty work done youll probably want to remove the tune... In turbochargers the N55 and B58 are similarly designed 3.0 inline-6 single in. Mod for mod it becomes evident the twin turbo design in the.... Driver side and connect and cooling cycles they 're subjected to xdrive convertible with less than 10 k miles engines! Performance benefits ) models get the 355hp version n't sweat it if you 're only topping up small amounts occasion. Troublesome and have even been reported to stop functioning as early as 5,000-mile. Of B58 VANOS solenoid issues, but much, much less i still experience a bit of coolant,! Topping up small amounts on occasion extra heat and stress on these.., cracked charge pipe, valve cover gasket leak, and the addition of a second make..., spark plugs, coil packs and transmission fluid w/ new filter and pan @ 100K she... N55 thougj.. any ideas go as far as replacing the entire oil filter issues any possible filter debris of... Should be considered when pushing the limits far as replacing the entire oil filter housing and valve issues.

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