This BMW Engine is FINALLY Toyota Level Reliable (N54/N55/S55/B58)

The BMW N54, N55, S55, and b58 are all important BMW engines but there are some big differences. Today's video will give you all of your favorite BMW engines explained and will give you all of the reliability issues and the reliability expectation you can have with these BMW engines. And finally, I'll walk through which BMW engine you should buy depending on who you are and what you're after.
It's BMW N54 vs S55 vs N55 vs B58!
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[@cyu601]

If it's still putting down the road in 20 years with no major repairs then it is Toyota reliable.

[@germanengineering204]

High performance models were never built to accomplish that, but B58 in the Supra is as reliable as it gets for that kind of performance!

[@cyu601]

@@germanengineering204 There are still 20 year old supras driving around. I don't think these will last 10 years.

[@IDGAF56852]

The engines might be ok but its the transmissions,differentials,and the rest of the car that will fail. Toyotas make everything to last in their cars and not just the engines.

[@mk3mo578]

I have a 2011 bmw 535xi with 254,000 miles in an original ZF transmission not bad

[@54FLEX45]

Just imagine, driving a Toyota for 20yrs, that’s a lot of yawning. ‘Life’s too short to drive boring cars’ as the man says…

[@charlesbcraig]

I was slightly disappointed I didn't get the N54 when they first came out, but years later (and still to this day with 265k miles on it), I'm glad I have an N52 in my 2007 328xi E92 6MT!

[@carkingspot3973]

I agree the 328 is much more reliable. I have a ‘08 e92 328xi. It helps a lot if you can do a lot of the repairs / maintenance yourself. Goes a long way.

[@jeremywatson9129]

Yep, I have a 128i l, love the N52

[@Turbodako2x]

I'm currently an N55 owner and I still love and miss my N52 💔

[@hanshans8612]

More good info. One of my favorite channel. Thanks.

[@eldismemushi]

Bro I have N57 on my Diesel X5 2017 35d m sport and I'm telling you is bulletproof engine, just amazing.

[@patrickaustin8528]

I have the B58 in my X5. Tons of power,smooth acceleration, and decent fuel economy. No reliability issues so far!

[@luigynkaren062011]

Toyota had a lot to say about that engine, so definitely reliable

[@dq303]

Would the b48 also be considered a reliable engine as well?

[@Z32andCG6]

Great video. It's funny to see that the engine's greatest attribute is It's less likely to grenade itself. I hope the timing gear is genuinely improved for the long term since it's on the back of the motor now.

[@TheLastRide88]

I had a BMW M340ix with the B58 engine and it was fantastic. I went ahead and upgraded to the 2020 X3M competition which uses the (S58) variant and it’s very good too. Honestly, if I could go back I would probably pick the X3M40i which has the B58 because it has plenty of power off the line.

[@Mr.Lambert777]

I was looking at a 23 x3M but went with a 23 X3M40i to be a daily! I feel you on this comment tho! Glad you were honest about it!

[@racker5108]

Keep the S58, you will not regret it. Performance upgrades are barely becoming mainstream and the S58 is way ahead of B58. Simple downpipe, tune, E50 mix and you're well above 700hp. Want 1000hp? easy drop in upgraded turbo and it's a stealth road monster.

[@germanengineering204]

@@racker5108 B58 has incredible low down torque from the twin scroll turbo it uses! He's saying it has better daily driving power delivery. Don't think he's interested in pushing those horsepower numbers for his daily driver!

[@sbs-0055]

@@racker5108not everyone is looking to daily a 700-1000 hp

[@jerryp2433]

Awesome technical details for someone thinking about which engine to buy.

[@BobbyDigital_100]

Excellent video! I am vette/Lexus/Acura guy and recently been looking at M4’s and M440i’s you answered all of my questions! Thanks for putting this together! 🙏🏾

[@bmw325ia]

I recommend BMW with B58 engine only. My son has one with 124,000 miles and still no issues. Hard to believe.

[@BobbyDigital_100]

@@bmw325ia especially with how BMW underrates the power and it still gets solid gas mileage and quick. Makes sense as to why they use it in so so many models and Toyota accepted level of reliability! Agreed! 🫡

[@gb2828]

If like Corvette's, like I did, prior to the release of the C8 - take a good look at the BMW 840i XDrive. It's mighty sporty, plenty quick enough, and classy !!

[@500benzcl]

In my opinion this video is best one you made 👏

[@Stormin2548]

Great video Mark. Loved the detailed history of the modern BMW 6. Toyota really pushed BMW on the latest 6 to build it reliably. Interesting was that Toyota was flying engine bolts to Japan to test the strength.

[@bubuski]

I’m curious to read a good source on Toyota’s actual involvement. BMW and Toyota agreed on the feasibility study to define a sports car joint platform in 2013 and the OG B58 came out in 2015, not quite enough time to develop or fully revamp an engine but the B58TU then launched in 2018 which went on the Supra.

[@encinobalboa]

BMW's are OK during warranty and lease period. Avoid like the plague after.

[@kevind5269]

no real involvement. bmw were planing to build modular engines for years. using same block for diesel engines and petrol engines and just chopping away cylinders. B38,48,58 and B37,B47 and B57 same blocks just chopped.

[@seaman5705]

BS . Not engine bolts were ever the source of low reliability in BMW engines .

[@0megalul309]

Toyota had jack shit in involvement with the engine development

[@BK-oc6lb]

For 24/25, they’ve upped the HP for the base B58 engine on the X5 to 375 HP and 398 ft lb torque- And with 25 mpg combined EPA. Incredible engine and what looks to be great reliability. I’ll take it !!

[@ECPP]

Nice

[@1618MyMusic]

I think we need the same video but for 4 cyl, n20 vs b48 vs b48tu, many people think only on 6 cyl, but now pretty much everything ,if not a x40i, comes with 4 banger.

[@erniestarkey8856]

Great information. BMW have always been such a cool looking vehicle. Opening the door and looking inside was always an exciting moment. That reliability was a reason I tried Mercedes. Not a ton better but engines are better. Glad BMW is getting back on track. Now let's see them get rid of so many platic parts. Thanks Mark.

[@thinkingimpaired5663]

Loved my BMWs but I always carried spare parts and followed preventive maintenance schedule. Great info on this video.

[@deathrager2404]

i really want that x3 bro......... i really do. but i gotta live like how you been living.

[@brice340i]

@@deathrager2404go for it just stay on top of maintenance and get one with service history you won’t regret it

[@deathrager2404]

@@brice340i i ll look into it. thanks for the advice. thing is effin beautiful.

[@dutchlogitechclan]

I have an N55B30O0, only issue I've had in the 36k km of owning it (80k km when bought) was a small gasket leak. As said by someone else, stay on to top maintenance, never be late on the oil changes & top-ups and when your car tells you to, go for maintenance. Also if you have an N55, always have a spare liter of engine oil or 2, it really drinks a lot.

[@SupraSav]

N54 owner here. Took my car from 108xxx to 175xxx. I can say that some things like the waterpump and pre-'08 N54s had HPFP issues. If BMW simply went with less plastic(valvecover, charge pipe, recirculating valves, waterpump) BMW could have saved a lot of issues and been much more reliable. Most of those parts are actually surprisingly cheap to fix(for BMW) and if you did them yourself you really wouldn't have batted an eye at the cost. Plastic doesn't belong in engine bays, too many chemicals, heat cycling, etc. Hoping to get in a B58/S58 in the near future. No S58?!

[@ECPP]

thanks for sharing

[@brandonveal69]

The B58 is the only turbo BMW I want. I like the BMW Z4 M40i and the 340i. I am a huge fan of BMW’s N/A engines having owned everything from M20,M42,M30,S38,M88,M54,S54, S62, and N52. I currently have my 06 330i sport pack manual with the 255hp N52 as a daily driver and it is extremely reliable. The S54 M Roadster and S62 E39 M5 are for special days. I am glad BMW is redeeming themselves with the engine but they still have work to do in the styling department to bring back the magic of the good ‘ol days. These newer engines can’t provide the beautiful sounds of the older N/A engines, but that’s why I will always keep an N/A BMW in my garage.

[@rayland9305]

Redeeming themselves? They just traded oil leaks for a poor cooling system and coolant leaks.

[@FastRedPonyCar]

The recent B58’s are making well over 400hp crank now. BMW rates them at 385 but guys are seeing 385 at the wheels on the dyno. SUUUPER impressive.

[@boxoffisa]

This video has inspired me. I may start a channel talking about reliability of BMW just like Scotty Kilmer talks about Toyota and Lexus.

[@surgedidit]

Great Video Mark! I have a 2014 M135i which has the N55 engine. Currently on 79K miles. Apart from boost pipe failure its been pretty solid.

[@PapiAndrey]

Charge pipe is a known failure point, best to upgrade to a metal or aftermarket charge pipe

[@surgedidit]

@@PapiAndrey Defo, I've upgraded to a VRSF one.

[@skliros9235]

It will start leaking oil bad

[@scottp6761]

@@skliros9235 not really. Valve cover gasket s have to be done. But otherwise maybe intercooler seals. Minus those naw

[@skliros9235]

@@scottp6761 valve cover gaskets and oil filter housing gaskets are guaranteed to leak with age. Mechanically the n55 is pretty reliable. Just rubber seals are what fail.

[@5metoo]

Great video. Loved the detail and history of the inline 6.

[@ECPP]

Many thanks!

[@evanbrown2594]

My 2012 e92 328 RWD 6 spd has been “mostly” rock solid for the most part. 160,000!km and two injector coils and issues when I was forced to let it sit for 6 months when I moved it from AB to Southern California, finally and when I loaded it to a friend and they somehow blew up the clutch… Total repair cost over 10 years about 6000… not the best not the worst. Big chunk was replacing the transmission.

[@demondmiller9862]

I guess the verdict isn’t in on the S 58 yet but I think you for steering me in the right direction with my M440 2022

[@wishfulbuy]

Love my 2009 e90 with the classical N52 engine, changed water pump and thermostat by myself and VANOS solenoids. Moved up to a F25 X3 with N55 engine, and replaced the valve gasket over a weekend wrenching in my garage, now it's clean and no smelly air in the cabinet. I listened the sounds of those 4 cylinder turbo engines like N20, those sounds horrible and story about their timing chain really scared me away. Now I am really looking at the B58 engines, seems a good bet with BMW for better reliability.

[@davidniday7504]

Can’t beat the reliability of the naturally aspirated straight 6. N52 with cold air intake is plenty for a lightweight car to have fun

[@dionisifilpo7735]

57Kmiles on my N55 no engine issues what so ever . I don't push it hard, no tune, I change my oil liqui moly every 3k and its treating me like a beauty. Enough power to push my 640xi , I just know there are a lot of maintenance items coming very soon.

[@Wicked_RotF30]

I haven’t had any major issues with my N55 and I’m willing to say its Toyota RELIABLE!!!!!!

[@ECPP]

Nice

[@lpcook1]

Great video and comparison.

[@TheMechanic204]

YES I’ve been waiting for this

[@mikekay213]

Great video, please do another similar for BMW 2 liter engines over the years

[@ronbrooks6547]

Thanks the new engine type is what I have. Nice Video

[@54FLEX45]

I’m starting to see the 540i coming down to tasty prices, I just wonder about non engine related issues though… additional electronics, etc. Great vid!

[@sbeezynukka]

Mine has been a top so far! Once tuned both engine and transmission it’s tooo fun!

[@cbvss]

5 series is mostly electronical issues and just annoying little things im sure like most bmws

[@Salpeteroxid]

E39, E60 or G30?

[@sbeezynukka]

@@Salpeteroxid I’m G30

[@Salpeteroxid]

@@sbeezynukka After my F82 M4 the G30 540i is definitely on my shortlist. Fantastic daily driver and roadtrip car.

[@germanengineering204]

Mark this is literally the video I've been waiting for. You really shined a light on just how great the B58 motor is , and it will gain legendary status! Hopefully all the BMW haters will see that BMW has reliability nowadays, and when people like myself defend the brand it's because they have some truly excellent powertrains! B58 blows my mind everytime I get behind the wheel!

[@rayaany.4069]

Bmw reliability myth died with the F series. B48/58, and even the new N63TU, S68…reliable, powerful!

[@rayaany.4069]

@@germanengineering204 Nah bro, let the people keep thinking bmws are unreliable. It will make the used costs stay low for us 😂

[@dingdong2103]

The engine is only a small part of reliability. Electric gremlins have been the bane of all things BMW. And the new engines are not yet old enough to even say they're reliable. Try 200 000 miles later.

[@dingdong2103]

@@germanengineering204 Well if you make claims like 'Toyota like reliability' then it pretty much means lasting 200 000 miles.

[@bleu_chzst924]

Bmws will never be anything more than junk. Only thing possibly worse than a bmw is land rover or jaguar PERIOD.

[@lastpally]

The b58Tu which is found in the m40i,m340i/m440i which produce 382hp is even better than the B58 that was first release and used in the non M-40i models.

[@proudam3969]

Recently bought a slightly used lease return 2021 BMW X3 2.0L Turbo. Blue exterior with beige interior with Panoramic sunroof. It has the B48 engine.....hope it's reliable. I'm driving my X3 gingerly.😇😇😇 Good explanation of the BMW engines.

[@Jundaku]

B48 is also used by Toyota. So I hope so! We have had zero issues with our 2020 X3 so far.

[@bghoody5665]

Great video, Mark - I always wondered if there was anything about BMW that you did like. So some reliable engines, it's just the rest of the under the hood components that don't cut the mustard. Makes me hope there are some after market parts that address the problems.

[@hippotesttokill750]

I have the n54 e90 08 rn issues at this point just water pump gaskets still fresh! Hopefully it stays that way for longer time but overall the performance I get out of it makes me happy for under the 10k including the cars price I spent on it stage 2 and loving it wouldn’t change it but I would say I want that 340i badly hopefully soon I can have one as well with my n54 on the side! Dream goal though is that s58 m3 hell of a robust block they put in there

[@EddysReviews]

Its crazy to see that the S55 in the M4 is sooo reliable and fuel efficient despite all the power and great driver experience it produces. Great video as always. I love ECPP because of the BMW videos.

[@HotRodM4]

Yeah, I love my S55 ❤

[@fzr1000981]

So reliable? Are you high? Crank hub failures

[@EddysReviews]

@@fzr1000981that only becomes an issue after tuning the car because the power becomes too much for it to handle, and after upgrading that part, everything goes back to normal.

[@fzr1000981]

@Eddy's Reviews wrong! crank hub failure can and has happened to many bone stock cars, do the research. It has also happened on low mileage stock cars, so it's a complete roulette wheel, you may get lucky and you may not...only way to be sure is spend $5-6k to install an upgraded one piece billet part. Yet another BMW motor with a fatal flaw but legions of fanbois can't stop peeing themselves over it like it's made out of gold. The S58 seems promising so far...let's see how many make it past 100k miles with no issues

[@MikeyG003]

@@EddysReviews yeah crank hub issue is definitely blown out of proportion. I installed the crank bolt capture on it which wasn’t even expensive only like 100 bucks and installed myself. Was def annoying install, so far no car has spun the crank hub with that capture installed. It’s a gamble, might spin, or not. But I’m on e85 and tuned, so I wasn’t gonna risk it. Better safe than sorry

[@zemekiel]

So I have had my 2008 335i since 2011 and it has now done 170k. I have religiously followed the service regiment, and addressed every single issue as soon as they appeared. What did I change during this time other than standard things like fluids, filters and pads? 1. High-pressure fuel pump, changed once. 2. Water pump, went after about 155k 3. flushed transmission once, and changed mechatronic sleeve 4. changed spark plugs twice 5. coil packs once. 6. Front shock absorbers once 7. Charge pipe That's it. Take care of the car, and the car takes care of you. Leaks? Only once from the front shocks right before they went. Sitting inside driving, the car looks and feels like new. No rattles, everything is tight. It is such a treat to drive, love the hydraulic steering rack, so much better than the newer electric ones!

[@carkingspot3973]

I have a ‘08 328xi, have had it for 6 years now and the engine runs like brand new. I only had to replace the valve cover gasket and some basic maintenance (oil changes, spark plugs, ignition coils). It’s a non turbo, and it’s fast enough for me.

[@twinturbo8304]

Good job Mark I have my pumped up n54 that still rips hard at 24 years old also have m3 s65 v8 for the COOL factor😎

[@mikeincanada_]

On the Lexus, regular maintenance is changing you oil, oil filter and air filter. On the BMW its all that plus water pumps, thermostats, radiators, etc etc. If your experience with a car is based on having it for a 3 year lease, you probably didn't run into any issues and you are singing their praises while driving your next oil leak waiting to happen.

[@ChrisRobato]

You forgot the M57 inline six diesel engine. The old M20 and M30 inline sixes we're pretty good too back in the golden age of BMW.

[@QuattroBajeena]

My uncles got a M140i B58. My gosh that engine is a monster! He tuned it pushing 421bhp

[@stepdaddee4543]

There’s loads of videos of people tuning these things well past 1000hp. A lot of which are still using 50%+ stock parts

[@xvsj5833]

I’ve I had a sweet tooth for BMW, However, it sounds as if BMW has out smarted itself. Thank you Mark, 🇨🇦 ✌️❤️ Cheers 🥂

[@Socrates924]

Love my 2019 w3 M40i…hope to keep it for a while….it’s a blast!

[@edjarrett3164]

Great review. I’ve owned BMRs with the N54, N55 and S55 engines. The N54 also has carbon buildup on the exhaust valves that have to be cleaned periodically. The S55 is a top end engine. Dual coolant systems, 5-6 separate radiators, dual HPFP’s. The only warning for mod folks is you’ll have to replace the original crank hub or it might spin and destroy your engine.

[@scottp6761]

Which cars did the S55 come in. I'm a n57 guy on diesels but wanting to either get a B58 or N54 since n54 bottom end is bullet proof up to 600+ HP

[@edjarrett3164]

@@scottp6761 Mostly M cars. Mine is a 2015 M4 stock that has been bullet proof at 80k miles. Mostly m3/m4 cars in the f80/f82/f83 models. On forums b58 if maintained has been very reliable. n54 has a lot of design issues as first gen di engine. They all have a lot of miles on them, so you would need to be very picky. Too many have been tuned, not in a good way.

[@scottp6761]

@@edjarrett3164 true that. I'm thinking waiting it out until B58 become cheaper. Getting a one owner maintained one like I did on 2016 535 n57d30. Mine has been bullet proof once deleted and tuned. Such a fun car to drive with 580 torque.

[@edjarrett3164]

@@scottp6761 Never did the diesel BMW. Do have a 2013 Cayenne diesel with 130k mikes that I’m pretty happy with. Not a performance vehicle, but makes 26 in the city and 29 on the highway with range a little over 600 miles. Stock 255hp/400ft-lbs. for a 5500lb vehicle it impresses me.

[@scottp6761]

@@edjarrett3164 yeh those are good cars. Delete and tune and get 350 HP and 550 torque. Stage 2. I love my diesels.

[@Vincent-ke5zn]

I look forward to seeing your videos

[@rivakhoffman4825]

I have the B58 inline-six in my 2023 840i. Although not a rocket like the M850i,(which processes the N63 - 4.4L twin-turbocharged V8) it still seems pretty spunky with 337 HP. I simply couldn't fathom spending $115K for the rocket-fast V8 M850i, which would never see its potential except on the track. I'm very pleased with my BMW 840i. Thanks, Mark for the reassurance about the B58. I always worry especially after watching all your BMW-related video's.

[@howardkahn4330]

THE N63 IS THE WORST BMW ENGINE EVER PRODUCED....FACT! GO CHECK T OUT!

[@Jundaku]

You my friend need to tune it. ;) The stock B58A (Gen1) and B58C (Gen2) are pretty soulless, especially compared to the B58B (Gen2 in the M240/340/440). I had the B58A in my old 440i and it felt sluggish over the N55 I had in my old m235. I ended up getting the MPPSK installed and that engine just came alive. Truly loved every moment of it, with a huge bump in torque putting a smile on my face. Just traded it in for a 540ix with the B58C and just counting down the days until I can get it tuned. It's really not that bad, but once you fully experience what the B58 can do you can't go back. I'm excited to see how much more power this B58C will be able to put down over my old B58A.

[@scottp6761]

Tune the B58 and enjoy it. Well over 400 whp

[@2w0nGranTurismo]

@@howardkahn4330not if its the N63TU3. the first N63's from 2009-2013 were terrible. These new ones not so much

[@marekpetruczynik5084]

Great video with lot of information, great job Mr. Mark. 200K, subs, c'mon people!!!

[@adnan_velic]

Nice to see the engines being reliable what about the rest of the car?!

[@markhooper5824]

Brilliant mate.

[@nancyloren6524]

My X6 is B58 , has lots fun to drive, thanks Mark make me understand my car !

[@ECPP]

Right on!

[@b.f.378]

Appreciating this video, as I have the X3 M40i , just like the one that you're showing in this video. It's my first BMW.

[@AndrewGibson22]

I'm sticking to my '07 E92 with the N52 with 95k... Only 215 bhp but sweet engine. Sorted the usual gaskets and vanos... Next will be a water pump and thermostat and that should be me for the next 50k. Oil changes every 5k is a must on these lumps. Loved this video btw 💚

[@mechanicalintentions5431]

Did you do the oil pan gasket? If so by yourself or at a shop?

[@brarautorepairs]

Is it 2.5l or 3.0l? N52B30 or B25

[@Theunknown-dl6li]

@@RabihSaadguitars oh hell naw

[@charlesbcraig]

Yeah! I have 265k miles on my '07 E92! Still drives better than any of my friends cars!

[@madhunter6420]

Which E92s are the most reliable?

[@Jay3s]

I have a M340i and it has been super reliable thus far.

[@steamy7676]

Finally talked about b58 again..Happy that still hold the opinion as time goes by. Bit looks like coolant is still not that good enough?..

[@wbmjr46]

I have a 2013 535i Xdrive with the N55 with 96K miles and gets 30+ mpg on the highway and currently have had no major issues with the engine and drive train. I've replaced both CV axles, low pressure fuel pump as well as the valve cover gasket. Outside of that the car has been very reliable.

[@Tsukuyomi8]

Great video... which series/engines are the most reliable? The current X1? The current series 2? The current series 2 grand coupe? Or series 1?

[@BfifT8]

Im literally buying a 2020 G05 because of this channel. I want to see if they will put the B58D/B58TU(M340i) Engine in the 24" G05

[@anthonycontreras1250]

What’s up guys I own a 2009 n54, it has 85k miles I had it for four years and my guy is not lying about the diy’s. But again I love working on my car I do everything myself, the car is full bolt ons, which means dual cone cold air intakes, oil catch can, aluminum chargepipe, Blow off valve, aluminum outlets, silicone inlets, aluminum intercooler, catless downpipes, stage2 low fuel pump, upgraded twinturbos, on a custom tune. These cars aren’t too bad to be honest, once you upgrade all the plastic parts it’s good, it’s not like they break every week lol That’s why I tell people it’s maintenance over modifications. Because you don’t know how the previous owner treated the car. You have to do oil change and all fuilds, vacuum lines so you don’t have boost leaks, spark plugs, ignition coils, and fix any type of leak coolant or oil, fix it asap. And you can’t expect a car not to break if you’re abusing it everyday, come even a lambo or Ferrari will break, take care of your car and it’ll take care of you. Last thing If you don’t like working on cars and you want a bmw you better have deep pockets or just get a Honda or infinity 😂 🤷‍♂️

[@AvengerAngel]

A breath of fresh air on BMW stepping up reliability. In general, turbos provide additional power in smaller engines and thus are a great marketing attribute for folks who prefer high performance cars over economy. The EPA places so much pressure on manufacturers to decrease fuel consumption and carbon, which is not what people who love high performance are necessarily interested in and as a result, manufacturers have also made detrimental changes to lighten vehicles with plastics which are intolerable to conditions of performance cars in the long run. In turn, plastics are compromising reliability (longevity).

[@rubear1848]

It’s called innovation of the limited life span of product to keep demand rolling. If the market accepts the short life span the why stop there? The profit margins can just keep growing which is what really matters.

[@AvengerAngel]

Exactly. "In economics and industrial design, planned obsolescence (also called built-in obsolescence or premature obsolescence) is a policy of planning or designing a product with an artificially limited useful life or a purposely frail design..."@@rubear1848

[@angelpena8121]

Got a 335is at 54k..replaced everything for peace of mind and I’m at 134k FBO rn with no issues but I know it’s time for a refresh and new turbos. Oil change every 3k miles

[@elementalrain3356]

As in replaced everything what’s everything because I’ve got a n55 with 62k so…

[@ahshitherewegoagain6361]

@ElementalRain I have an n55, and I've replaced the thermostat, water pump, charge pipe, oil pan gasket, tensioner, pulleys, radiator, all of the major coolant hoses, inlet pipe, valve cover gasket and oil filter housing gasket

[@AMGThanatos]

Love my S50 in my 95 E36 M3, reason being iron block with an aluminum head, and with 200k miles in addition to it being the original engine, still starts up with little hesitation. I will need to rebuild the engine, due to the age and everything being original parts from almost 28 years ago lol.

[@phillm156]

I had a N54 335i….I felt your pain😅 It should be noted the B58 also has both injection (direct & port). This take care of the carbon buildup issues behind the valves & intake.

[@vollcare4076]

B58 and B58 TU is direct injection only

[@phillm156]

@@vollcare4076 B58 TU2

[@racker5108]

nothing a catch can and port injection manifold cant fix on the n54, of course after a thorough cleaning

[@vollcare4076]

@@phillm156 but the Supra B58 is TU and Not TU2, Therefore Supra doesn’t have a port injection

[@gxp99]

In late 2006 gm released the solstice gxp with a direct injected 2.0L 4 cyl turbo with 260hp/260trq and a 290hp/340trq dealer upgrade, i've had one since day one and its been as reliable as can be. No high pressure pump failures, no injector failures, no wastegate rattle, no leaks, nothing(there are some water pumps failing but thats it). At that time bmw had access to all of the same components that gm used, so why did the n54 have so many issues? Did bmw choose cheaper quality components?

[@christopherjefferson3561]

I'm glad they've fixed the b58 thanks to Toyota. I hope the same can be said for b48. My timing just failed at 100k and second engine and cars got 217k mi.

[@MRMV483]

In what car do you have a b48?

[@Jagshemasher]

I sincerely hope the engines they are making now will go 300,000-400,000 km like the older non turbo engines would without significant issues. If this is the case I may actually consider buying a BMW again however I am adopting a wait and see approach - once bitten . . . . based on my experience I'll take reliability over tuneability.

[@chrisbradley3224]

There's zero way it will go that far without major issues. All DI turbo engines are going to have earlier failures than the old bulletproof 4 cylinder Japanese NA engines. BMW has improved but it's still a BMW and they are quite complicated with a lot of sub-par gaskets to dry out.

[@bsturn]

There’s a 340i I know of that is at 190k miles with a top mount turbo

[@JQ_Unity]

There are plenty 200,000+ mile n54 and up cars driving around. Stock bearings

[@Jagshemasher]

@@user-lh5fg5hz4p - the issue is not tuneability - it is reliability - my E36 was still going strong with 325,000 km on it. My E90 335d started to have very expensive problems after it was just 5 years old. Irrespective of how much HP the car has, if it is in the shop needing $3000 - 5000 of repairs every few years its a problem.

[@yappering]

Loved my late gen 2010 Manual N54. Blew it up in less than a year.

[@jmunnadaboss]

All bad sounds like you just tuned it didn’t even do no maintenance 😂

[@harrys2331]

The B48 is shaping up to be a pretty reliable drivetrain as well.

[@user-nf9lw4zd9m]

Under rated drive train TBH. Keep up and follow the maintenance and don’t see why it wouldn’t last awhile

[@harrys2331]

@@user-nf9lw4zd9m I think a lot of people focus on reliability in 2023 and that's a mistake since so many car brands are similar nowadays. For one, reliability as an industry has gone up over the last 10 years. Cars are just built better. It turns out that most automakers don't want to spend millions on recalls and have learned from their mistakes.

[@user-nf9lw4zd9m]

@@harrys2331that is true. also, It comes down to owner. Some people dawg the crap out of there vehicle and don't maintain it and then crap on it for not lasting. If you keep up with maintenance on any vehicle it should last awhile.

[@jay_z3]

The N54 has a open deck block too. Although it's a great engine, I prefer the M54 with the closed deck block. I'd rather supercharge or turbocharge a M54.

[@nicochalo1710]

Thank youuuuuu ……facts

[@gregpapagno5683]

I have a s55 and can't complain

[@RealEstateChris56]

I have 68.000 miles on my 2019 440i. The engine is as tight as the day I bought it...loads of power on tap and great gas mileage in Eco mode. Having driven nothing but Toyotas since day one, I bought the 440i because of similar videos praising the B58 engine. So far, so good.

[@ECPP]

Very nice!

[@diangelo6686]

Ha just wait till that thing hits 100,000 miles BMWs are trash and they always will

[@RealEstateChris56]

@@diangelo6686 I have to disagree. It's really been a great car so far. I'm by no means a BMW fan boy...I honestly don't give a shit about cars like some do...I'm in my mid 40s and just wanted a nice upgrade from my Camry. When I read about the B58 being in the Supra, I figured, if it's good enough for Toyota, then it ought to be pretty reliable, and it has been.

[@diangelo6686]

@@RealEstateChris56 what year how many miles cause ur gunna tell me about your 5 year old car that hasn’t even touched 100,000 miles that’s nothing and you shouldn’t have any major repairs on any car that young

[@diangelo6686]

@@RealEstateChris56 hey I mean like if you want we can bet 1,000$ that that car won’t last you more than 12 years without a 4k plus bill

[@JeffFadness]

Although stock reliability is increasing...the number of repairs needed increases with each iteration due to added complexities of more sensors, emissions components, automated / luxury features, and overall higher number of components in the vehicles. From this perspective....the original 335i with an N54 is probably the friendliest (boosted) BMW to own and maintain at the 10+ year mark.

[@yomansam4689]

Absolutely not, that would be the N55. Keep in mind, the n54 is TT, whereas the N55 is single. Coming from an owner of 2 N55s, they’re nothing but pleasure to own even as old as they are

[@JeffFadness]

@@yomansam4689 N54 cars were the last to be optioned with no iDrive and commonly no backup cameras, they still had hydraulic steering....manual seats were more common in the older E9X models as well. That's just surface level components that come to mind not even getting into the drivetrain. Turbo aside the N55 cars have more components (more eventual failure points) than an N54 so they may run marginally longer...but there's going to be more to repair down the road.

[@yomansam4689]

@@JeffFadness I’m not tryna argue fr man but nothing you just mentioned are common failure points. N55 and N54 cars are damn near equal in age give or take 5 years, yet which ones do you see in the junkyard more often? Reliability is often indicated by price too. E9x gens usually go for around 5k cheaper with the same amount of mileage on the cars, even cases where clean examples get priced out by salvage N55s, just doesn’t add up man. I’m a BMW geek and a Facebook marketplace geek in turn, I could go all day homie 😂

[@yomansam4689]

@@JeffFadness I’ve also never driven a Bimmer here in the states with manual seats, maybe I’m missing out but even my E34 didn’t have manual seats, neither did a friends E36

[@JeffFadness]

@@yomansam4689 To each their own. There's a reason why older single hump, manual seat, no sunroof BMWs are more sought after by many (including me) and it's not just weight reduction. I owned one (with a sunroof that of course broke) and sought it out specifically because of what it didn't have.

[@ebenezerawuah-yeboah5738]

Ciao from the EU...🙂 I'm considering getting the new X1 with the B48. I was wondering if there are any replacement parts for these problematic plastic parts (radiator, hoses, etc.)...? Cheers...

[@jimmypeach8838]

But which B58 to get? Thanks great vid!

[@ivan.e82]

Keep up with maintenance and they’re all pretty good and most if not all problems can be fixed with aftermarket solutions

[@joeking1046]

Aftermarket ......Lol dunce always oem

[@ivan.e82]

@@joeking1046 always oem lol okay billet valve cover billet Mickey Mouse flange upgraded aluminum pcv oh and yea let’s replace with oem turbos so in 50k miles we can get wastegate rattle again for sure bud you swear yk wtf you’re saying

[@bmw325ia]

Good info Mark, I wouldn’t buy BMW without B58 which is unexpectedly reliable engine as my son has one with 124,000 and no issues, hard to believe

[@StockTurboN20]

That’s not hard to believe

[@griffin_kith6214]

My n52 was such a headache yet my N55 hasn’t given me any issues in 40k tuned and abused daily driven miles

[@jmead001]

Mark would love your opinion. Considering a 2019 x5 with is awesome engine or a 2019 Porsche cayenne. Overall reliability is the most important factor for me. Which would you choose?

[@subreme9351]

Porsche easily bro

[@touayaaj84]

Currently 41k miles in my GR Supra. Zero issues so far.

[@davepaturno4290]

How about the leaking diff issue. My 2024 GR Supra's diff needs a shaft seal at 700 miles. Other than that, I love this car.

[@touayaaj84]

@@davepaturno4290 refill and continue driving

[@davepaturno4290]

@@touayaaj84 If the leak were due to an overfill condition, then yes, that might work, but the Supra tech identified the leak as coming from a shaft seal, not the vent hole.

[@vollcare4076]

How do you measure reliability? Is there a certain specification or standardized testing procedure available to evaluate such ? What is the test result let’s say for N55 vs B58 ???

[@mohammadkamran5862]

Reliability is measured when I buy a used Honda/Toyota at 300000 KM and the engine hasn’t had a single coolant leak in its lifetime and all the parts on the engine are still original. And other things. When you can drive a car worry free for 100s of thousands of KMs without worrying you’ll be stranded. 😒 then you can say it’s reliable.

[@vollcare4076]

@@mohammadkamran5862 yes I know what you mean. But is there a proof for such ‘feeling’ - like is there a spec or lifetime testing parameter available at Toyota and BMW ?

[@simbayoung4757]

11:20 that growl man ❤

[@chriscoffman8340]

I just hit 70k miles on my 2018 540i with the B58. No issues so far and it is a blast to drive!

[@Elaba_]

Did you drive all the 70k miles?

[@dewarkhodern9990]

@@Elaba_ Relocating the Goalpost I see

[@shiromi1]

@@Elaba_why does it matter

[@Elaba_]

@@shiromi1 It gives a better view.

[@GokuTheHusky]

BMW now ranks 3rd on reliablity as of Nov 2022 statistics

[@jonlee580]

I own the s63tu.. Its a super solid and reliable basic maintenance no real mechanical issues.. 2013-2016

[@ECPP]

They are better than the n63 too by a decent bit

[@aprapr7385]

The n55 had different parts in the later models I made sure to get the EWG version on my m135i do you know any other different parts they had don’t know weather to tune this engine or trade it in for m140i as the b58 is a better I’ve read

[@treffle17]

12:10 Papadakis racing modified one to make 1k HP, I don't know if we could call that a tune, but he has shown that this engine has the potential.

[@alimohamad6594]

Yeah more then enough people going way past 650whp…

[@Mrpancake72]

​@Ali Mohamad yeah the zf transmissions is slipping in the 650 torque range. But people are getting some great power numbers out of the b58.

[@chrisbradley3224]

Your breakdown is good and info is pretty accurate, but your potential horsepower numbers are way off. There's no way you can make 1000 hp on N54 or 700 hp on N55 or 1300 hp on S55 even close to reliably without MAJOR modifications like a completely built motor. If you look on the forums, cars tuned that hard are not very reliable. I am not sure about N54 but I know N55 really shouldn't go past 450 whp if you want a reliable car. S55 shouldn't go past 600. Also, on S55 the crank hub can spin (especially if tuned) and charge air cooler cracks and leaks frequently.

[@ECPP]

Thanks Chris for your comment. Haha you are right, ti Ed and reliable may not be phrases used together but some big mods have been tried on all these engines and usually E85 is the o my way to all exploring these upper echelons.

[@RTXRetroGo]

I have an S55 and this was reassuring. Trying to decide if i want to keep it or drive a Lexus with a NA 3.5L V6 AWD. :/

[@davidanderson1268]

Loved them!!!

[@ECPP]

Cheers

[@phill4337]

My B58 had low oil alert at 12k miles. Toyota dealership didnt help me besides selling me a quart of oil, and I poured it in directly in front of the dealership. They had no idea what to do with the car, googled the recommended oil, and sent me to the parts department.

[@ECPP]

That’s sad

[@andregrant3433]

What are your views on the 2020 bmw x3 m40i, would I be a good buy?

[@skylinefever]

I'm not familiar with various BMW engines. Which ones were notorious for oil leaks? When I think about any German engine, I think about how many gaskets will be leaking oil in about 8 years.

[@xxzmk]

Another very reliable (just small and every now and then appearing known issues) engine from BMW is the N52B30 which is also known as one of the last 6 cylinder inline naturally aspirated non direct injection BMW motor available out there. You can have those in the BMW E60 generations.

[@Jagshemasher]

The naturally aspirated engines were always very reliable

[@scottb4104]

One of the most reliable for sure

[@vladcostea6692]

This made me miss my 325i E30

[@MikeyG003]

To add to this: I got an s55 pushing around 600 crank hp tuned for like 15k miles and 2 years. Car currently has 40k miles on it and no issues and I beat the piss out of it. Car is going at least 100 and red lining every time I take it out. Hit 175 in it too, could’ve gone faster, but thought that was good enough lolll

[@bmwlane8834]

Please stop before you kill someone!

[@khumokwezimashapa2245]

I read N55 lol. I thought "Impossible" 😅

[@MikeyG003]

@@khumokwezimashapa2245 lmao yeah no way for n55 😂 yesterday I hit 135 and 150 lol trip was few hours of driving and I was smashing the way 110-120 whole way and car was a champ, no issues. Hot day too like 91 ambient temps

[@ronakroy3070]

As an b48 owner I can confirm this new b48 b58 is outrageously reliable.

[@chevyboa8950]

It’s b48? I thought it was b46

[@ronakroy3070]

@chevyboa8950 b46 and b48 is same engine I believe with some miner emissions difference

[@chevyboa8950]

@@ronakroy3070 ahh ok ok cool. Thanks

[@randomhobbyist99]

The S58 is my pick. Only because I bought one. We’ll see how the reliability goes.

[@ECPP]

would like to hear too