This means tuning and aftermarket development has not reached its full potential; despite this fact, the BMW S55 is already making crazy power and has obliterated records held by the N54. Thanks. Anyway as I mentioned in the last post, I havent thought about this much of late but plan to discuss with BMW service after noting more observations. Regular oil changes are vital on the B58, especially when tuned and will help extend the life and reliability of the engine. 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. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. It will save you tone of money in unnecessary repairs bills. 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. Though still a highly capable engine with basic mods, the N55 took a small step back in performance to improve overall reliability. Although the B58 uses similar rubber VCG's, the engine has one advantage. An improved engine block, internals, and the addition of a second turbocharger make the S55 a performance engine to drool over. Our site is dedicated to all things BMW Tuning related. 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. Change places of where your camera is so you can better locate it etc. N55 is my preferred engine in the E92 lineup. Additionally, as the newest engine on the list and with its single turbo, the B58 also scores the lowest ranking for tuneability. Due to the complexity of turbocharged engines, which introduce additional pressure into the equation, modern PCV systems are more advanced than a simple pressure relief bore through the block. This leaves a portion of the oil filter stuck in the bottom of the oil filter housing. It is subtle, I havent observed the tachometer following this pulsing. Maximum PSI seems to make a good one. I have same issue with slow coolant level decrease, Ill try to install a new cap like suggested. Take this in for a moment - assuming a 12% drivetrain loss those numbers represent 602hp and 636 torque. Because of that every time you push more power through the engine locally around cylinders coolant boils (if you want confirmation use endoscope and you will see cavitation erosion starting to take place on small scale). Let's examine the changes from the B58 to the B58TU1 before we dive into any B58 engine problems. Someone knows what is due? Thanks Zach! Save my name, email, and website in this browser for the next time I comment. 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. 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. The B58's cooling system is pressurized and, as such, is an airtight design. 350-400whp will require at least a decent set of performance tires. Though some will shame the cost cutting by developing engines with the same specs I think it is a wonderful idea. Thank you for your comment. Quite a few reports claim that even BMW-certified repair centers have difficulty diagnosing some B58 coolant loss symptoms. Why not? Proceed with the oil change as normal. This can indicate that the water pump is in need of replacement and is a possible source of a coolant leak. It manages a respectable 322-382hp and 332-369 lb-ft from the factory. Which of these BMW turbo inline-6 engines is your favorite? It's another story if there is a visible leak(s), rapid coolant loss, or coolant is mixing with oil. Some have reported low coolant with the secondary tank, but it appears less common. 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. Still a sound improvement for the B58. Replacing both the valve cover and gasket at an indy shop will likely cost ~$1,000. Thanks. I had the 4.2 I6 in both my 1975 Landcruiser (FJ40) and my 1978 Jeep CJ-7. Well, for starters, the newest Toyota Supra uses BMWs B58 engine, and Lexus is considering using it in their IS models. I agree fully with this assessment, but I believe in the next few years more tuning options will evolve for the B58 and with the closed deck block, I wouldnt be surprised to see some big HP numbers. I have a 2011 535i M Sport with 200k miles. Has it happened to someone else? 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? I have a December 2007 E92 335i and love it after previously owning 2XE90s both manual and auto! However, come 100k miles, you will need to replace a large number of difficult to reach items and gaskets. Don't sweat it if you're only topping up small amounts on occasion. B58 engine is same used for for M4 with greater HP. Although, let's put a rumor to death quickly. Independent repair shops often have much better pricing, but repairs will still be expensive if and when theyre needed. Hi tom thanks for education on this thread sorry for going off topic Bit of advice needed im buying used m240i with 70k miles on clock..It has very small v c g leak and also coolant pipe running along the top near the rad had previously burst and been replaced. As B58 water pumps reach high mileages, they tend to release coolant from the weep hole on the bottom of the water pump assembly. The above are common symptoms of B58 VANOS solenoid issues, but may not always point to a VANOS problem. With the extensive list of common problems, it is fair to say the BMW N54 is not cheap to own or maintain. perhaps look for a used Audi 4 wheel drive convertible. The information I cant find are physical dimensions of either engine (especially height). In fact, it may not have an equal among all engines on the. 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. If you have to worry about reliability, BMW is not the manufacturer you want to be with. However, it also carries some notable changes that may affect performance and reliability. 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. 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. it now has 125,000km on the clock and is stock 300HP. ?Any accuracy in this? There are countless videos of B58 BMW owners with this exact symptom resulting from a damaged PCV. Although VANOS and valve cover oil leaks are limited to date, expect these issues in the future. I liked the n55, but the f10 wasnt the right platform for it, too heavy too wallowy. 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. Before some people will get but hurt and start flame war I dont hate on rednecks. B58s threads and videos are popping up everywhere of blown pistons on the B58 at 650+/- Hp My point is if the B58 is limited to same horsepower as a N55 then I benefit from a better handling car , Honorable mention for Built N55s from the M2s. "Natural" is in quotations for a reason. Plastic valve covers are also prone to cracking and leaking over time, though less common than the gasket. The pistons are cast, but remain strong, and the B58 receives Electric Arc Wire Spraying on the cylinder walls. Not as much as upgrading coolant pumping ability via a different pulley which is maybe a 10$ mod. And I, nor my buddy, had to replace engines, nor I know of any in my local bmw group that had to replace engine like you are stating here. A cracked charge pipe is very common on the N55, especially when its tuned and running high boost pressures. BMW B58 Reliability. Was stock. Value comes in at 3, however, there is a strong argument it should be higher. It's a pretty labor-intensive job. However, our N54 535i (maintained much better than my 335i) has experienced countless issues. The following table compares the technical data for both engines. What kind of HP increase could I expect with the JB4 piggyback tune? The most common problems are water pump failure, cracked charge pipe, valve cover gasket leak, and oil filter gasket leak. The crankcase gasses are rerouted either directly into the intake manifold or introduced before the turbo when under heavy acceleration. Last replaced plugs and coils at 190K. Excessive oil consumption is another big one that can alert you to this issue. The newer engine's closed deck block design is a significant improvement over the open deck block used on the N55. This does help a bit with longevity. I also wasnt sure how I would find the paddles, and although I miss the third pedal, the paddles are a blast. Ill try to describe what I suspect as a secondary issue. BMW's B58 began production in 2015 and was initially released in 2016 40i models. Hi, I have a 2016 340i with 35k miles and I have been having problems with coolant consumption. A code scan revealed code P0012. Stupid technicians, or cheap skates that mix coolant with distilled water cause cooling system boiling point to fall. However, fault codes will help point you in the right direction. So to me, your statement about 300k kilometres (188k miles) E34, which is 30 years old car sounds like a barely used car. My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. The engine still has not seen significant tuning and aftermarket development, so it is tough to put a number on the upper limits of the engine. Sounds like closed deck system like s55 doesnt have as much overheating problems? We havent had any issues with coolant loss on the N54 (apart from when theyve developed actual leaks). Im not convinced there isnt a secondary issue. Check your turbo coolant level (smaller of the two reservoir caps). Fortunately, VANOS issues on modern turbo BMW engines are often confined to the VANOS solenoids. Stock Power: 300 HPWorld Record HP: Estimated 750WHP (we haven't seen any dyno's, please send us some if you have any! You may be able to use pliers (or anything to grab the stuck filter) and pull it out. 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. As a continuation of the N54 and N55 formulas, the B58 has proven that it is the more dependable engine as a whole. Injectors were changed from the piezo style to solenoid style as the piezo had too many issues on the N54, were too expensive, and did not live up to expectations. Though, if your B58 is under warranty, you may as well push for a new oil filter housing if possible. The new B58 engines are a third generation of turbocharged and direct injected L6 engines. Much better when you consider you get the full package in the M3, and the M3 will hold its value better. Coolant loss The B58 uses two coolant tanks in its system. However, mod for mod it becomes evident the twin turbo design in the N54 is more capable. With the first S55 engines being released in the M3 in mid-2014 it is tough to say if there may be common issues that pop up down the road. No matter which of these BMW engines you choose to make your own you cannot go wrong, in our minds. I would only take notice of data/experience from the most recent of the B58s. So much too learn, so little time. BMW techs dont seem to know how to resolve this. 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. *Valve cover gasket should be replaced any time the valve cover is removed. Really appreciate the info. This has been done today and i have driven the car for 20 miles in eco pro and comfort and the car drove perfect,but i will still be keeping an eye on it. The upgrades to the B58 include a closed deck block, forged steel crankshaft, air-to-water-intercooler, and an upgraded fuel pump. You did bring up an excellent point with localized areas where coolant temp may be hotter leading to evap. when removing the reservoir cap, I noticed a bunch of crustiness. Improvement of Valvetronic - VVT4 with reduced height. 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. (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! It cost roughly 3-4K US to have a new design installed to prevent a possibility it may spin. Although, the single turbo will likely limit its capabilities without upgraded turbo(s). B58 engine reliability BMW engineers were able to resolve the main issues with the engines that preceded the B58, including: Updating the fuel system Modernizing the cylinder head They fixed issues with the particulate filters A fresh design for the timing chain I just bought a 2017 April F20 M140i x drive and I am Just about every part of the S55 is bigger, better, and stronger than on the N54. Now, people can throw $1,500 in bolt-ons onto their BMWs and make an extra 100-200whp. I track it and the engine has been holding up very well. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Absolutely excellent comparison, Zach. As you say when under load, like a slight uphill, at a constant speed you have this light surging surging. The N55 and B58 are similarly designed 3.0 inline-6 single turbo engines. 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. Just a question of how the other internals fare. I have a 2011 335 x drive manual that I love. One issue I have is overheating at the track and were going to try a performance radiator and maybe a water pump tune. 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. ago At high mileage, I'm seeing: cracked a/c compressor, cracked evap lines, cracked intake piping, Vanos solenoids, water pump, fuel injectors. Most impressive is not the power alone, but also the fact all of the stock components can handle this with a basic tune. Thank you. The BMW B58 is a turbocharged straight-six engine, which began production in 2015. A few recalls and service bulletins do exist for the B58. Hi Al l/ Zach, 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.. Stock Power: 424 HPWorld Record HP: 1150WHP (~1350 crank horsepower!! ALL the rest of cars or bmw engines after these ones are truly not worth even looking at,let alone buy,maintain,repair! Conclusion. 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 B58 owners will have a trouble-free ownership experience and spend less on maintenance than if you were driving a N55-powered BMW. Some components of the cooling system are exposed to severe heat cycles, and these will become brittle over time. Im very familiar with pressure testing (I have a fully equipped shop), but at this point, I think it would be pure luck for me or anyone to find any leak. Love the car but hate the pain! 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. Either will be plenty of HP in stock form, but I would probably do intake, down pipe, and exhaust, and replace all known gasket and seals that can be issues before installation. Hi the B58 is not the same engine as M4 M4 is S55. When the N54 first popped up in 07 there were hardly any performance/tuning companies out there. Only truly good engines bmw made were M20B20 series(2.0, 2.5 , 2.7) and the big sixes M30B35 along with all its smaller or bigger versions. Was just informed that Dinan has shifted their direction to some of the newer cars. Bit of methanol injection will help keep your intake valves cleaner. 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. f34 130k miles (tuned about 30% up only intercooler upgraded) 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. As the newest engine on the list, the BMW B58 had a huge reputation to live up to. The Grenadier will be no different. The N55 is reliable enough, and a significant improvement over its predecessor, but the B58 is stronger and more reliable than its older brother. Alone, but may not have an equal among all engines on the B58 uses two coolant tanks in system... 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