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. (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! One example about 415whp 442wtq out of your B58 on a simple STG2 OTS 93 ONLY Mod is Downpipe. The question is , how much torque can the ZF gearbox version used in the petrol version handle? Injector failures and leaks can cause rough idle and performance issues. Thanks. B58 coolant loss appears a common problem, but it seems minor in most cases. All rights reserved. BMW techs dont seem to know how to resolve this. The talker a 6th gear I can find the better. In normal condition like drawing to grocery and not even touching accelerator, you will never see this happening, but when doing hard acceleration because you want to get out of dodge, negotiate out of slip road and you need to rapidly gain 40mph, just having fun Cant wait to compare the BM3 to the Dinan Stage 1. Yeah - a straight six is a beautiful thing. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. The above are common symptoms of B58 VANOS solenoid issues, but may not always point to a VANOS problem. 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. 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. 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. Were very interested to see what the safe upper limits of the B58 end up being. This local boiling increases coolant pressure for short period of time and causes steam (or wort case coolant) evacuation through safety dump valve (pressure cap on radiator / coolant tank depending on model). 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. Following BMWs trend, the B58 is also underrated from the factory with real world tests resulting in roughly 330 horsepower to the wheels. 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. It basically has a more aggressive tune from the factory. 49 32 comments Best Add a Comment ijustbrushalot 8 mo. Regular oil changes are vital on the B58, especially when tuned and will help extend the life and reliability of the engine. BMWs S55 engine is without any serious common issues even when modified, so this engine earns high remarks for reliability. BMW really is the Ultimate Driving Machine! Currently stock on stage 1. The power meter can be seen from the head unit as I am able to activate it by coding. Thanks for the clarification and reply. Your email address will not be published. Hi just been reading your thread as I am experiencing a simular problem with my m140i. Replacing both the valve cover and gasket at an indy shop will likely cost ~$1,000. Flush out and refill coolant every 5 years. Yes Im in the UK John. Where the gasses end up is dictated by a diaphragm in the PCV system. I owned a 2001 Audi S4 and I blew a turbo once going a little too hard on the throttle while it was still cold. Did BMW live up to that reputation? Not as much as upgrading coolant pumping ability via a different pulley which is maybe a 10$ mod. 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.. Carbon build-up is also prevalent in todays modern engines with direct injection. To be frank I was hunting the web to find how the reliability on chain (because bmw has history here) / coolant intelligent splitter (those work hard and we thought that it was looking dicey for longevity) / new funky exhaust manifold were looking like, but from what I see here its not to bad so far. The engine room is simply too full with views inaccessible. I just bought a 2017 April F20 M140i x drive and I am Coolant leaks often result from damage of some kind, so repairing the damaged area will ensure that the cooling system retains its fluids. Stupid technicians, or cheap skates that mix coolant with distilled water cause cooling system boiling point to fall. Maximum PSI seems to make a good one. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. This does help a bit with longevity. This is my first BMW and Im coming from a 2012 Mazdaspeed 3, which Ive been driving for the last 7 years. 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). Thanks. 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 ? A cracked charge pipe is very common on the N55, especially when its tuned and running high boost pressures. It's always the minority of people with issues that shout the loudest. However, you may make it well past without issues. Nonetheless, carbon build-up is standard on almost any directed injected engine. To find out more, read our Privacy Policy. All rights reserved. Guess where the VANOS components reside? The B58 is a marginally larger engine displacing 2,998cc compared to the N55's 2,979cc and weighs 18 lbs more, but while making notably more power. Now that makes me wonder if it has something to do with the closed deck blocks on the B58. TwinPower Turbo which is a twin scroll single turbo. Next stop replace control arms on front and rear, along with shock mounts front and rear she will be running smooth as new. It has honestly amazingly smooth power delivery and sounds better. Change places of where your camera is so you can better locate it etc. my buddy still has: Pistons are not forged, however they're pretty strongBlock Design: Closed DeckRedline: 7500Injectors: Bosch solenoid style direct injectors. Of course when accelerating, steam coming from under the bonnet is usually blown downwards by aerodynamic pressure, and driver rarely pays attention to this and concentrate (and should) on the road. One of our N54s went 113,000 miles before its first walnut blast. Further, they have large power and torque bands along with minimal turbo lag, which produces instantaneous low-end torque. I found remove driver side first. Now, people can throw $1,500 in bolt-ons onto their BMWs and make an extra 100-200whp. My history with bmw is: perhaps look for a used Audi 4 wheel drive convertible. Which of these BMW turbo inline-6 engines is your favorite? Reliability + performance. Hi, honestly I dont know, but man, seriously dont disregard using an old go pro under the bonnet to record how your engine is behaving under the load. Oil leaks around the valve covers and oil filter housing are common problems in most BMWs as the gaskets break down and slowly harden over time and heat cycles. 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. I add small amount of coolant from time to time, but nothing crazy. Had the well known gasket issues. Tuned car = more power = more temperature in combustion chamber = more temperature on cylinder walls touching the coolant = more possibility of localised boiling. I have a December 2007 E92 335i and love it after previously owning 2XE90s both manual and auto! Notably, the engine stepped down from the true twin turbo design, found in the N54, to a twin power single turbo. Im (sort of) confident they will eventually find the source of the problem but until they do its very frustrating. Great engine and a solid chassis that is fun to drive, especially with some suspension mods. A few recalls and service bulletins do exist for the B58. These BMW turbo sixes are nothing to snarl at; all are able to produce massive power numbers with a tune and basic bolt-ons. Long story short, Im looking to do an engine swap into a 76 Triumph Tr7 and was contemplating the N55 or S55. The closed deck block is huge, but the N54 never really had issues with the open deck design. I took my car to the dealership, they did pressure system check, but they didnt find any leaks. The B58 is part of BMW's new modular engine family, each engine using a displacement of 500 cc (30.5 cu in) per cylinder, following the B38 and B48 engine.. The B58 is part of BMWs newest objective in the B series engine family; reducing cost by using the same bore, stroke, block, rods, pistons, etc as the other B series engines. B58 is reliable, bulletproof and can handle hella boost on stock block. 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. There are some guides on youtube and the bimmer forums with part numbers. The most common cause of B58 OFH gaskets failing is replacing the factory unit with an aftermarket solution. DIY the basics (oil, brakes, spark plugs, etc) $500 to $1,200 a year 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. 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. Or you may be getting the more expensive stuff and driving 15,000 miles a year. Hi Hank, Ive currently been having issues with my M140i. There are countless videos of B58 BMW owners with this exact symptom resulting from a damaged PCV. Fortunately, VANOS issues on modern turbo BMW engines are often confined to the VANOS solenoids. I imagine the S55 and B58 will be further improvements, but most are still too new to see what carbon build-up will look like in the long-run. BMW tech found low coolant on the low pressure side. 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! Was stock. This applies to coolant hoses and coolant connecting flanges. Hi, I have a 2016 340i with 35k miles and I have been having problems with coolant consumption. 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. Bimmerly is a hub for BMW enthusiasts. With that being said, I would not buy a BMW B58 at this moment. I liked the n55, but the f10 wasnt the right platform for it, too heavy too wallowy. 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. it now has 125,000km on the clock and is stock 300HP. 335I and love it after previously owning 2XE90s both manual and auto makes me if! A beautiful thing damaged PCV especially when tuned and will help extend the life reliability... Horsepower to the dealership, they have large power and torque bands along with minimal turbo lag, Ive! 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