e90 200k miles. Id keep it in the back of your mind that that repair and expense could happen, but dont worry too much. Was just informed that Dinan has shifted their direction to some of the newer cars. However, it can be hard to catch with this symptom alone, as the B58 also has other oil consumption issues. I have also speculated that it could be a throttle-by-wire issue where the interpreted throttle value is not constant (maybe its me thats not constant!!). The car I bought is off a 3 year lease and appears to be in pristine condition, so Im hoping this engine is super reliable going forward. Yeah I agree with Tazzieman completely. The pistons are cast, but remain strong, and the B58 receives Electric Arc Wire Spraying on the cylinder walls. Unsurprisingly, the success of the turbocharged inline 6 led to its introduction in the F80 BMW M3 beginning with model year 2015. Dont hesitate to pack those with even more detail ! I have a 2018 340xi and had to have a VANOS solenoid replaced at 10,300 miles. My '86 CJ-7 had the Inline 6, 258 cu. Same with the N54 and E9x chassis. The B58 has more horsepower and torque then the N55. Once the pass side is in and connected, install driver side and connect. That got lemoned (hpfp issues). To find out more, read our Privacy Policy. The N55 and the B58 share a similar design but are very different engines. 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. One dependable BMW engine, the N52 inline-6 featured in the E90 325i, 328i, and 330i, has already been covered in detail. AND BTW, I dont know whenever new caps will fix anything. Some owners are reporting coolant losses in the main tank and possibly in the second tank. Just remove all the plastic covers and you can get your hand back there. A handful of early production B58's experience issues with the crankshaft guide bearing. Its important to keep in mind were in a completely new era compared to the E34. BMW replacing whole engine with a new one. Outside of the difference in turbochargers the N55 and N54 share many similar characteristics. 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. Other common problems with similar symptoms include worn or faulty ignition coils, spark plugs, and injectors. 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. Its a lot of extra heat and stress on these engines. Ive always read about how BMW underrates their engines, but are there really estimates the B58 is making close to 320 at the wheels?! Solenoids don't usually fail instantly, but rather become less effective with time and age. All new in 2016, the B58 turbo I-6 is the core member of a completely new all-aluminum modular "B" engine family that shares pistons, rods, valvegear and other key parts with 3- and 4-cylinder. Its that sad with bmw. 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. How do the BMW N54, N55, B58, and S55 stack up against each other? 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. ?Any accuracy in this? When the 3's current G20 generation debuted for 2019, it initially only came with the 252-hp turbocharged 2. . 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. Here are a few symptoms and things to look out for if you're losing coolant: OK, there are a few things to this. BMW replaced it under warranty as one would expect. 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. Dinan offers stuff thats covered under warranty. 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. Additionally, it receives the forged crank and rods as with the N54. Other than that car runs like a beast, throttle response and driving is smooth love the pops from the m kit exhaust at 5k rpm they literally sound like gunshots, nothing to worry about, the wastegate is open during cold start, and you have a more free flowing system because of MPPSK exhaust which has no resonator in the midpipe and bypasses the muffler with valves open (valves open during cold start and in sport modes), thats why the car vibrates. Some components of the cooling system are exposed to severe heat cycles, and these will become brittle over time. Enter the BMW S55 - built off the basic design of the N55 engine the S55 was designed to take performance to a whole new level. Thats really hard to put a number on since it can vary so much. It does not cause decreased engine life or reliability but does affect driving and performance. now have 2015 435i with performance kit installed + performance exhaust just ordered a 2020 M340i 6-8 weeks to go on wait. 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. Lets look at both engines in detail to find out why the N55 is not as reliable as the new B58. Just a question of how the other internals fare. Although, let's put a rumor to death quickly. That's our simple answer for now. The first indicator of an issue was a check engine light. Relatively speaking, yes. We may receive a commission for purchases made through these links. 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 . 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. However, it's worth monitoring as the B58 ages. Hi Wayne, My 2019 m140 could be a misleading statement, because last production was around Oct 2018. Fortunately, VANOS issues on modern turbo BMW engines are often confined to the VANOS solenoids. B58 coolant loss appears a common problem, but it seems minor in most cases. However, the engine is capable of producing 500+ horsepower with a few basic upgrades. Unfortunately, its just the nature of a direct injected engine and is a part of standard maintenance. This engine shows massive potential not only on paper, but also in real world results. I just bought a 2017 April F20 M140i x drive and I am Im not convinced there isnt a secondary issue. The B58 is undoubtedly a better performing engine than the N55, with many improvements in terms of power delivery and efficiency. Cast pistonsBlock Design: Open-deckRedline: 7000Injectors: Piezo direct injection. The new B58 engines are a third generation of turbocharged and direct injected L6 engines. It is also known as a straight-six naturally aspirated engine. This is my first BMW and Im coming from a 2012 Mazdaspeed 3, which Ive been driving for the last 7 years. Only tool I needed was a small flathead screwdriver. Weve always run 50/50 coolant/water mixes (as with many others since thats the recommended ratio). The best one worth having and mentioned is S38B38 from the E34 M5 car. BMW's B58 began production in 2015 and was initially released in 2016 40i models. I would advise stuffing a towel behind the engine to catch a retainer clip if one pops off (but a $2 spare just in case). JavaScript is disabled. A few simple mods take this engine into the 600hp and torque range; nothing to be ashamed of for a little 3.0L inline-6. 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. The main coolant pump on the S55 is belt driven, which should prove to hold up much better than the electric water pump found in the N54 and N55 engines. 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. Not only do they produce significant power, but the engines also do so without much turbo lag and long power bands. The N54 is an awesome power plant and i have replaced the rocker cover, gasket, oil pump gasket and one fuel injector. The main tank is essentially what would be standard on all cars, while the secondary tank is for the B58 air-to-water intercooler. VANOS is BMW's terminology for VVT, or variable valve timing. Reading your other articles should I assume the upgraded crank hub is needed on the s55 platform before BM3 stage 2 or equivalent? 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. ps. 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. Steph Papadakis and his boys are making 1000HP @ ~42psi on a 2020 Supra B58. The N55 was replaced in 2016 by the B58. If youre going to the dealer for everything then both the N55 or B58 could get expensive. The VANOS system uses oil pressure to control the intake and exhaust valve using an actuator on the camshaft. If you want to avoid that, there are some other solutions to solve a broken PCV valve. However, this may not be necessary in most cases. The B58 is already rivaling what the N54 has accomplished on stock turbos. It cleaned up ignition timing a little bit, too. [/QUOTE]. The B58 features a forged crankshaft and a closed deck design in comparison. Im impressed to say the least. Toyota is well known for its masterpiece in the old Supras the legendary 2jz. Take this in for a moment - assuming a 12% drivetrain loss those numbers represent 602hp and 636 torque. Im not sure how many as I was never given any job sheets. 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). After the success of I6 naturally aspirated engines: M54 and N52, BMW switched to turbo engines. 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. Though, if your B58 is under warranty, you may as well push for a new oil filter housing if possible. Open-deck blocks and cast pistons are not great at handling extreme boost pressures for long periods of time. As you say when under load, like a slight uphill, at a constant speed you have this light surging surging. Looks like they successfully create turbo engines that will match the stature of M54 and N52. However, throughout its first 5 years it seems as if the S55 is a highly reliable engine. Automotive Performance, Tuning, & Modification. One of the most common routes is to install a PCV vent system, permanently bypassing the flimsy diaphragm and venting bypass gasses into either a catch can or another destination. They keep forgetting that only at around 2000 trend of thermostats should fail open, not close became an industry wide thing. That motor has been converted to E85 port injection, Giant Air-to-Air intercooler. Required fields are marked*. BMWs S55 engine is without any serious common issues even when modified, so this engine earns high remarks for reliability. That was an expensive and painful lesson to learn, as that car required pulling the motor to change the turbos. Im guessing something might be coming up in future Im not sure if any other b58 owners have this or if its common I wouldnt say its absolutely needed, but the stock crank hub may fail down the road. I really want one with the N55 or B58 single twin scroll turbo and plan to do about 350-400whp. Completely misread that. Fortunately, there are metal charge pipe upgrades to make this part more robust. 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. Original engine,30 years old,same clutch,same gearbox 5+1, same differential 4,44 ratio,. 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. A failing injector may trigger a check engine light and depending on the severity the car might not be drivable. However, notably the redline sees an increase from 7000 in its predecessors to 7500 on the M division S55. These leaks commonly develop around 70,000 to 100,000 miles. 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. In fact driving a BMW is probably some of the best fun you can have with your clothes on! 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. B58 engine is same used for for M4 with greater HP. *Picture is from an N54 that had a leaking VCG for nearly 20,000 miles. In reality these are a tiny % of the number of engines out there.And usually someone has abused it or skipped a service.I expect the engine to be very reliable and well suited to the vehicle.At least as good as any Defender engine! Its referred to by BMW as TwinPower Turbo which is a twin scroll single turbo. . Minor leaks may not produce enough smoke to notice. We think the Supra carrying the B58 helps the platform a lot, too. 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