B58 is obviously a winner. Ever since the twin turbo N54 hit the markets in the 2007 BMW 335i, BMW has been building on the design of the turbocharged, direct injected inline 6 engine. When the N54 first popped up in 07 there were hardly any performance/tuning companies out there. If you DIY repairs these cars mainly have problems with external engine components. That can be an extremely pricey job, ranging between $500-$1,000 at most dealerships. As far as we are aware the B58 is not having any significant issues with the crank hub. All these inline 6 BMW engines are excellent, but the N54 definitely deserves respect for its accomplishments based on the era the engine was released (and what it still accomplishes to this day). Notable changes from the N55. From my understanding it is a fine engine.Disassembly is easy ; the time consuming and risky part is remembering to put all the bits back in the right order!Main costs of maintenance will be consumables such as tyres and brakes. ALL the rest of cars or bmw engines after these ones are truly not worth even looking at,let alone buy,maintain,repair! I have a 2011 535i M Sport with 200k miles. 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! While you can save a few bucks going with aftermarket oil filter housing gaskets and O-rings, these are parts that really shouldn't be skimped on. Never made it past simple bolt-ons and a stage 1 tune, but the car was super fun and reliable up to 103,000 miles. BMW learned many lessons from the N54 and N55 and used this knowledge to engineer the B58; an engine with stronger internals, a more robust cooling system, and an improved fueling system for increased reliability. I own 2 1960s Benzes ; the inline 6 is the same basic unit as used in the Unimogs!Tough as nails and likes to rev. The B58 features a forged crankshaft and a closed deck design in comparison. Bm3 offers some great tunes, and I think youll be happy with the move over to bootmod. Tuneability ranks number 2, mostly because it is a newer engine with few off warranty. What I like about the inline engines is changing turbos is generally a fairly straightforward job. Second, last night I purchased a 2017 340 with 30k. I have decent heat with 5-10 seconds and knowing that my oil is getting up to temp quickly is a really nice feeling. 49 32 comments Best Add a Comment ijustbrushalot 8 mo. We think the Supra carrying the B58 helps the platform a lot, too. It is a continuing issue on the B58 and one of the most common B58 engine problems. Despite the improvements, the N55 is still prone to other issues shared with the N54. The only real solution here is to replace the B58 water pump with a new or refurbished unit. 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. 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. Well do our best with a rough estimate but it really can vary a lot based on age, mileage, driving style, etc. You may notice burning oil smells in the cabin. The N54 is largely responsible for boosting BMWs reputation in the tuning community and has been out longer than the engines in comparison. The Grenadier will be no different. Hi Al l/ Zach, The BMW N55 followed the N54 with its initial release in the 335i beginning in 2010. Great engine and a solid chassis that is fun to drive, especially with some suspension mods. My m140i has now been back to the dealers 3 times in the last 9 days.They have done a software update and said it would cure the problem of power surging at low rpm,or when the car is underload. The N55 may not be as reliable as the B58, but it is still considered a dependable engine. Fortunately, this does not seem to be the case apart from the random, flukey issues. As such, it can't hurt to replace the valve cover while you're in there. Then remove and replace passenger side. Stock Power: 424 HPWorld Record HP: 1150WHP (~1350 crank horsepower!! Lastly, issues with waste-gate rattle were mostly resolved on the N55. At 28k miles I had a warning light low coolant. What are your thoughts and experience with the B58? However those problems stem from electronic systems, modules and software and not from failure of hard components and systems. Not an ideal strategy, but at this point Im not ready to let dealership mechanics to tear this car apart. Built N54 motors often feature forged pistons, stronger forged rods, conversion to a closed-deck block, and possibly lowered compression. Yes, B58 is reliable. Ive had issues with my 2018 440i not idling correctly. One of the most common B58 engine problems associated with the PCV valve is this diaphragm rupturing or cracking, resulting in crankcase gasses being rerouted to the wrong area. 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. Hi Adam, Thanks for the information. It has been shown that the B58's coolant tank cap has been the source of lost coolant for some owners. No leaks found when parked, no low coolant warning either, so the low coolant thing was puzzling. Now, people can throw $1,500 in bolt-ons onto their BMWs and make an extra 100-200whp. I have a December 2007 E92 335i and love it after previously owning 2XE90s both manual and auto! I've got a 1986 merc 300sl that runs like a sowing machine. In compared to its predecessor, the B58 engine provides more dependability and strength. First, let me say this is awesome info and Im grateful for it. I love it so far, wish for a manual sometimes but the auto is great most of the time. Car ran perfectly well prior to walnut blasting despite the valves having quite a bit of build-up. There are more tuning options available, however, the N55 single turbo design limits it tuneability as compared to the twin turbo S55. 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. Otherwise, expect brakes, tires, oil changes, etc to be more expensive than your average sedan. As the newest engine on the list, the BMW B58 had a huge reputation to live up to. Though, it may be excessive on lower mileage B58's. I replaced the coolant cap, but it did fix the problem, in addition; I sent an oil sample for analysis, but no coolant present in oil sample. You must log in or register to reply here. 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). Thank you, Zach! 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). Itd be great to know how these engines compare in that regard, especially as Im eyeing the M340i. Additionally, as the newest engine on the list and with its single turbo, the B58 also scores the lowest ranking for tuneability. Developed & Maintained by My car eventually looses all power each time after being fixed and I have to limp home with a drivetrain error on the dash. Bam, 45min to an hour for the whole job. when removing the reservoir cap, I noticed a bunch of crustiness. 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. Im experiencing the same as you when the car is under load. 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. Enjoy your new B58! To cut right to the chase, I love the direction the BMW B58 is going. hopefully BMW will sort this out. other than that it runs good and I still like it. We are hoping to soon add an F80 M3 and F82 M4 GTS. 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). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Absolutely excellent comparison, Zach. In fact, it may not have an equal among all engines on the. 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. My history with bmw is: 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. Although, VANOS work can be done without lifting the engine. 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. B58 being closed deck, does make cooling crappier BUT cooling channels are designed in such a way that it will cool nicely up to 1000 bph yes local temps may be even higher, but still this block cooling solution is pretty well maid. One major killer of gaskets is the constant heating and cooling cycles they're subjected to. Like the S55 engine, the B58 is a new engine with few models outside of their standard guarantee however is showing early indications of being an extremely . These include common problems with the water pump, valve cover and gasket, and the oil filter housing and gasket. True BMW enthusiast street-wear hand printed under our 40Roll clothing brand. 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 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. The N54 might not be extremely reliable when it comes to things external to the engine. 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. 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 ? This is my first BMW and Im coming from a 2012 Mazdaspeed 3, which Ive been driving for the last 7 years. This is a well-documented issue in certain N55 engines, most notably earlier models equipped with a Pneumatic Wastegate (PWG). Soooo if you have some noise under load best record it from engine bay. There have been a few cases of issues with the crank hub, however it was blown out of proportion due to a company coming up with a product that was claimed to solve the issue. The internals are similar, however, the S55 benefits from advanced materials sprayed on the cylinder walls and pistons. Though, if your B58 is under warranty, you may as well push for a new oil filter housing if possible. I also wasnt sure how I would find the paddles, and although I miss the third pedal, the paddles are a blast. That's our simple answer for now. Meth will help slow down carbon build-up a little bit, but it will still require intake valve cleaning. One of the most common leak locations is the water pump. This can result in oil-rich gasses being pumped into the intake manifold. It will save you tone of money in unnecessary repairs bills. Crank and block should be plenty strong to handle 800+whp. Although, let's put a rumor to death quickly. However, it's fair to chalk up minor coolant loss to being natural. Cast pistons.Block Design: Closed DeckRedline: 7000. There really should be no such thing as natural coolant loss. 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 most common problems are water pump failure, cracked charge pipe, valve cover gasket leak, and oil filter gasket leak. what a great site you have! it now has 125,000km on the clock and is stock 300HP. As Im eyeing the M340i great most of the most common B58 engine provides more dependability and strength list with! 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