I covered a lot in this video so here are some timestamps in case you’re in a hurry: - Spun Crank Hub Explanation: 2:13 - S55 Crank Hub Fix: 3:54 - Crank Hub Failure Caught on Video: 8:43
Basically, avoid kickdowns at all cost and be sure to be in the correct gear for racing. This ensures that your torque delivery will be smoother rather than praying on a kickdown. The 2018 and up M3/M4’s have proven to be better in terms of not spinning the crank hub due to harmonic dampening that BMW utilizes. I’ve been on a 100 octane tune for almost a year with 40,000 miles on my 2018 and thank God I’ve had no issues.
I just bought my '15 M4 last week with 38k miles, car is and has always been stock so im praying it stays good for a while. I will still get the fix done prior to tuning just for the peace of mind
Simply Car Things yes sir, 15’s are pretty open to the issue since the don’t have the fixed bed plate that the 2018 and up model has. Fix it once you tune it for sure!
My friend is very famous on Instagram with his 2016 M4 that has Pure turbos and no Crank Hub Fix. He swears that staying in the torque range keeps the crank hub intact. Also he said to stay away from doing DIGS!
thanks for the advice man! yea i always drive in full manual mode with the paddles so i never use kickdown and if i accelerate its usually from around 3-4k rpm. planning on going with the Vargas Spline Lock fix as i have a few personal friends running it after spinning their hubs with no issues now
I dont know if youve heard of Blake's garage but he has an '18 F82 with the revised bedplate design and spun his with a full E85 tune, its definitely still possible but as you stated its much rarer for it to occur in the later model years
I've only ever seen this on two cars, both were mis-shifted and mechanically over-revved. Both had a new hub installed and running again in a couple days. I'm have a suspicion BMW engineered the hub like this on purpose to try to prevent valve to piston contact in the event of a mechanical over rev.
nope. This would actually cause contact. They did this to make the timing chain easier to service. This is coming from one of the engineers who worked on the project.
@Scott You're right, I might not be correct but this is the youtube comment section so I can speculate and say whatever I want. I'd like to think having a degree in automotive technology, 6 years experience as a tech, over ten years experience on the parts side (8 of them at a BMW dealer) would give me SOME background and knowledge but based on your empirical response to my speculative comment I'm sure you must know. Next time I'll be sure to ask your permission before I express my opinion.
@Scott Like I said, only expressing my opinion and speculating, I understand how an interference engine works. Only speaking on my experience and every single one of the (4) S55's that has come in with the crank hub spun hasn't made valve contact. I'll continue speculating and you can continue foaming on your keyboard for no reason. Have a lovely day Scott XOXO
The M3 engine was not developed to be abused or driven hard . you will need to upgrade some parts or its better not to drive it hard to avoid all these issues
Have a buddy who works for BMW and he was pretty insistent that it isn't as bad as the internet has made it out to be. My local BMW dealers have seen zero spun hubs to date. So I'm not sure what to believe. No issues on my M3 with mods and it gets driven. Just avoid those money shifts and the kick down function on DCT's.
I work at a BMW dealer too, we’ve had hundreds of F80 M3s come in. Several with over 100,000 miles, none of them have had crank hub issues. Like with rod bearings, if you beat the shit out of your car, over-rev it, tune it, etc. you’re a lot more susceptible to crank hub failure.
Literally just purchased my first BMW today, a 2015 Alpine White M3 w/the 6-spd manual. This bad girl has 47k miles & is in immaculate condition. I love shifting thru the gears in this beast already, the shifter is like buttah, that's a compliment. My sales dude straight up told me about this design problem(he owns an M4) but your vid really laid it out in great detail. I'm going to practice smooth, deliberate shifting for a while before getting "raw" with her & pushing the limits. Man, this engine is just amazing! Just wants to pull & pull! Great vid.
This crank hub does not particularly fail on stock bmws. I have not seen it fail, I use to work for bmw for 15 years and never seen the hub spin out like that. The only issue I have seen was when the serpentine belt gets shredded into the front crank seal and gets inside the crankcase! I actually took the crank hub out and as long as you properly torque the hub, it won’t spin.
@@chrisd2415 did you work at a bmw dealership? Just FYI my theory behind the design is probably they are designed that way. It’s almost a set up for customers that like to race their m3. When the engine fails under warranty you must send out the dme to bmw and they will inspect it and find out how fast the car was going. If they find out that it was on redline and going over 100 mph the warranty will be voided!
@@jb_bmwrepairlyfe4704 it seems like you dealership techs live in a different world than the rest of us. You don't work there anymore so you can give up the act trying to hide BMW's problems. All of enthusiasts with this platform have seen or know someone on a stock S55 that has spun a crank hub.
No, he was given a raise for driving profit to BMW for the next 2 decades. Greedy bastards. Why not revise the crank between 2015 and 2020? They already have solution in B58. Because they don't want to accept responsibility retroactively.
I don't think it's as widespread as many think. VANOS issue was "common" on the E46 M3, and supposedly BMW fixed it (faulty bolts) for 2005 and 2006 models, and my own 2006 still blew up at 64K. Even so, I never met any other E46 M3 owners that had that issue. Still, I am leaning towards the F80 M3 right now and if I end up in one I will do this "fix" first, only because it's crazy how easy it is to get more power out of that motor!
i’d say the crank hub fix is a must if you own an S55, as awesome of an engine it is I wouldn’t want to take that risk. fortunately the OG M2’s don’t suffer from it
I’ve done a poll on this on M3 cutters and searched F80 forums. I’ve found 22 cases of it worldwide. That’s a 0.05% chance of it happening. It’s so so rare. It is mainly caused due to the stalling of engine on gear change (I used S2 logic). Also for some reason BM3 are 75% of them 22 cases. Stick to a good tuner not plug and play boxes for me!
John Couldridge that’s awesome to hear how rare it is. i personally have 2 close friends who had it happen to their car, and when it happens many people are quiet about the issue for warranty concerns especially if they’re tuned. i’m not trying to scare anyone, just letting people know it is a known issue and that it can happen 👌🏼
John Couldridge you’re giving incorrect information. I’m in a south Florida group with 50 (s55) cars. From that, 8 people spun their hubs. All one e85. Unless you’re only referring to stock motors. Then yes; you’d be correct. It is very race to spin a stock hub; tuned hubs is a different story. Im also friends with 2 bmw techs and they have each completed over 50+ hubs per dealership in under 2-3 years time due to failure. You’re misinformed.
@@MclarenRacingChannel How many of those S55s were modded(If you know)? Is it a direct correlation to the mods or just to the stock S55 engines in general?
Thunder Chicken they were all running e85 tunes. It is very rare to spin a hub when you’re stock. However, once modded, things change and from what I seen I’d guess 1/10 can spin when running 550-600WHP+ on stock hub I have a friend with a 2019 m3 with 3k miles, added e85 BM3 tune and spun the hub the same day. I also have friends running e85 with stock hubs and no issues. So it’s a hit or miss.
You can't really say that this is an "issue" from BMW UNLESS you are seeing many cases of crank hub failures on stock S55's. From what I have read and gathered, these crank hub issues are coming from modified S55's. Sometimes parts from the factory just aren't made in regards to buyers putting in hundreds more hp and tq than what it came with from the factory. I wish all manufacturers would make parts heavier duty knowing buyers will modify them, but that's just always the case. So this isn't in my eyes, a BMW fail. Its just not made for the extra power.
We are seeing many failures on stock s55s. What are you talking about? At this point we have to say this part is clearly the weakest link on the motor regardless of your stance on tuning. It makes NO sense why it wasn't designed with a keyed lock.
well with 100,000s of cars sold 1 in 1000 is still hundreds of people. And owners with broken engines likely tell someone their engine is blown etc etc
@@dylan-nguyen except they didn't sell "hundreds of thousands" of cars - I'm in the UK and completely accept the US market is larger. But here in the UK, there are less than 100 M4 CP's for example ever sold (and less than 60 M3 CP's). I don't know if you have a central website where you can check vehicle sales in the US like we have here in the UK but here we can check "howmanyleft.co.uk" and see how many cars were registered in a year, broken down by model. You can see in the UK at least, you'd have to be extremely unlucky to have a car with any issues. My own is 600+ HP and just fine as an aside :) You've said it well - "someone with a broken engine tells someone else". Complaints about a product always spread faster than compliments because that's human nature. Of the 1 in a 1000 people in my figurative example of people with faults, the other 999 aren't telling everyone they meet how their engines are fine, but the 1 who's isn't is sure telling everyone his is crap lol The negativity spreads fast - this problem just isn't as big as people think because of it.
@@cwx8 for sure. I know the part well. It it’s not down to running higher power IMO, it happens (from a video I’ve seen of it happening real time) on sudden overrun/let off. IE, max revs, then sudden 0% throttle. The chain almost “whiplashing” somehow. I don’t think power increases really effect chances of it happening personally. I’ve fitted a capture plate myself and have been at over 600hp for 18 months or so now without issue. Capture plate fitted only because “they were in there anyways” kinda thing. I’d certainly rather it slipped than it caused full valve/piston contact! 👍😂
@@Just-Ross Help me out with this one, wouldn't the capture plate not necessarily stop timing drift from the hub slipping? Like if the sprockets spin at different rates, the capture plate will do nothing won't it? Personally if I see some proof that they work I am right in there doing that when I'm taking care of my CP/outlet, etc
I’ve been pushing 600whp (e85 custom tune and Bolton’s) with stock crank hub for 20k miles with no issues. My car is a manual. I don’t overrev the engine or make “money shifts”.
Optimistic.ZR1.M3 I have been going back n forth with doing a custom BM3 tune stage 2 and I literally just said the same thing...shift at 6500 might actually work. I will get the hub fixed just can’t afford to do both at the moment and my warranty is up in 2 months
Some misinformation here. Not related to power but abrupt changes in engine rpm. More hp does not put extra load on the cam train (theoretically it does because cyl pressure is increasing).
thank you for correcting me. the abrupt changes in rpm could also explain why DCT cars experience the issue more frequently due to the speed at which gear shifts are performed
@@destinationbikeatboxhillin8255 Not correct. My BMW has been tuned from 300 to 500hp (bigger turbo) but the rpm does not climb faster in neutral for that reason as the inertia of the engine is the same. That >might< change if you put on a lighter flywheel though.
Great video, very informative, good job on this. However the percentage of spun crank hub is very very small and some companies that offer the fix have their dedicated army of trolls spreading false info on the forums all over about this. It's like cancer you may get it at some point or you will never have it. Just treat your car with mechanical sympathy and everything will be ok. No money shifts for manuals, for DCTs keep your setting in the middle ( i smoke Hellcats on my stage 2 tune with DCT set to 2 bars) , do not overuse stupid lunch control etc. I can beat anyone who uses lunch control with just good old fashion acceleration fashion. Lunch Control is POS as well as Kick down. If you have that mechanical feeling for your car you can feel that most aggressive DCT setting is not really healthy as well as kickdown. There are cars who are very heavily tuned and have over 90k miles on and have no problems. I use Stage 2 91 tune even though i have very good 93 octane gas available just to be safe ( i had subaru STI before my M4 lol). In the case of serious knock event i bet the crank hub can spin or when something is going on with oil pump etc. Do not panic drive your car hard but with mechanical sympathy. If you don't have it ..... well you will need to pay the price, but the chances are slim. This is the best video explaining the problem. Thank you Simply Car Things!
Great comment. As you say all about mechanical sympathy. This is such a smooth engine with an abundance of torque so there's no need to thrash it and abuse it to get performance
Great video Omar if you are running stock your crank hub should be okay very rare to fail but if you are going big BHP hub fix is essential S55 is a great engine very underrated sorry to hear about your friends BMW hope it gets fixed soon 😎😎
I have a 2020 m4 competition. I was given a jb4. I installed it and then removed it within 200 miles after. I wasn’t comfortable running anything besides stock. I have it away to a fellow m4 owner. I want to enjoy my car and not worry all the time. Also I didn’t like what the jb4 did to my power band. The stock competition tune is amazing, this changed it in a way I didn’t like. I was doing a pull on map 5 and got a misfire at the higher rpms and removed the jb4 that night. Stock and happy again.
While this is a real problem, it's also a very rare problem. It's much more rare than S54 exhaust hub breakage for example. Was there piston-valve contact in your friend's engine?
I ask in number of bmw work shops in europe and only one said they seen this issue in highly modified m3 with over 600hp. Its so rare that when you've got stock car i wouldn't bother , and even with modified car is worth to take a risk imo.
goin on the BMWCCA forums, you never hear of this outside seriously modded cars pushing way more horsepower than stock. I feel save with my M2C which is de-tuned compared with the M3/M4.
Question, if this is an issue with it coming loose why doesn't anyone just re-torque it every other month or so? Simple tq wrench slides under car, sets tq, boom! Save you 6K
Great intuitive video explaining the S55 crank hub issue. I have a 2016 F80 M3 Dct with a Bootmod3 tune and contemplating the vargas spline lock. What is the pricing for the fix? I was told 4000$ for Maximum PSI to do this fix which I believe is pricey for a preemptive measure. Albeit I dont run my car as much as Blues Clues and I only have 35k on the vehicle. With my low miles and the new G80 awd S58 coming out I would rather trade the F80 in on the new G80 M3 if the crank hub fix is as pricey as the cost of buying a used economy car. I was wondering what happened to Blues Clues. Cant wait for him to put out more content on the f80.
thanks for watching man! Yea i feel like that is quite pricey for the fix, I am certain it can be done for less. I would weigh your options and wait of course to see how the new G80 looks like!
@@Justanothercarguynyc Thanks. I am on the east coast but I feel, the f80 chasis along with its rwd is at its limits of usable power stock. Although I am tuned. The Awd G80 is a much needed platform for adding horsepower for the M3/M4. Awd alone will make the M3 at least a half second quicker than the rwd and make the chasis more usable when putting power to the ground in the real world. Therefore installing a preemptive crank hub fix to add even more power to the rwd chasis seems less attractive.
When I hear that this problem can happen on standard engine but some high powered tuned engines have lasted a long time it make me think its more down to the people driving the car rather than a massive problem with the crank hub design. How many of these actually fail as a percentage of cars made? Is it really the problem that it's made out to be?
I've wondered if BMW changed the way the car come on the power back in 2016 to lesson this, they said it was about driveability, because the pre-2015 BMW software the boost came on much stronger lower down. When I got the car back from the dealer after that software update I thought they had detuned it! BTW I'm sure there are OEM friction discs between the sprockets on the stock hub and it is debatable that keying the hub just adds another stress point. If you are going to do it a spline sounds the best solution.
I was reading about the friction discs as well, im not sure to be honest but so far all the fixes seem to be doing their job. it's definitely still an issue. The car in the video was a 2019 M3 CS with upgraded turbos and meth that had its hub replaced after just a few thousand miles. Granted it was modified pretty heavily lol
When it spun, did he use the paddle shifters or the kick down when you quickly stomp on the gas pedal ? Or did he over rev and up shift at a very high rpm? Can’t really tell what’s going on in the video
Ok, so what "clown"? What does that have to do with crank hub failure? You can run 20+ psi on many turbo engines with ethanol and/or water, RS3 guys are running over 30
I now this is an old video but I am looking to purchase a S55 engine car (M3 or M4) - How do I go about checking if the crank hub is about to give out? will a BMW tuner shop be able to take a look? or most likely they will have to take the engine apart for it to check? How much does it cost to upgrade the Crank Hub?
If I just want the GTS Start Up Roar and Burbles and I get catless downpipes would I have to worry about this too much? I am not a crazy power head I just want it to sound good.
the crank hub fix is a must when tuning this egine beyond stage 2 but the fail rate of it happening when just driving with a tune is below 1%. so it could also be just an factory failure on less than 1% of the cars world wide so just do the simple fix and you should not worry to push beyond 600hp
Sucks to hear what a great engine the s55 is at the same time “ don’t push it too hard” my car is stock and to hear it happens on stock cars really upsetting
yea it's an amazing engine if you take the hub slip out of the equation. id say get the fix done for peace of mind and just enjoy the car as much as you want
I am about to install a jb4 on my competition package 2020 m4 but I am scared. I will be running stock just with stage 2 and 93 octane. 3500 miles on car. Burger said the comps have higher flow exhaust and stage 2 is good to go as long as 93 octane is used on stock ZCP exhaust. Do you think I should do it or am I making a mistake? I won’t run e85 or race gas ever more than likely.
Please correct me if I'm wrong but I think there is a much cheaper solution to this, there is a lock that you can put on and it protects the hub from spinning. And I think it cost only 100-150$.
I would’ve also mentioned that probability and the percentage of cars that it has happened. Yes if you’re anywhere above 600whp 100% do your crank hub. But if you’re tuned and you drive like a normal person with a brain then you should be just fine. Spun crank hubs happen to people who rapidly shift down to first gear or really just push the car like an idiot without taking proper precautions.
2019 m2c with 17k miles ready to go stage 2. Should I upgrade my crank hub? Thinking +120-150hp. I read that after 2016 bmw fixed the issue but i cant find more info
All M4’s are impossible to spin the crank hub on a stock tune. I’ve never seen it happen. I’ve seen it happen only ONCE on a 2019 M4CS that was stock but the car was tracked and abused as soon as the driver bought it. Let’s not forget that the CS makes 443 pounds of torque rather than 406, so it already is “tuned” from the factory. Just some food for thought. If you are stock, you will NEVER spin it. And if you have a stock CS, you have a 0.0001% chance of spinning it lol.
BMW has failed to acknowledge it, if you read online the crank hub is definitely an issue, although the frequency of it doesn't seem to be incredibly high
I just bought a 2020 M2C. Is there a technical/safety recall on this problem? It appears to be costly and can lead to an accident if it fails and the engine seizes.
I would not think that power output would affect valve-train load to cause this. Only increased RPM should cause increased load. Driving near redline a lot or over-revving from an incorrect shift should be the only causes. That being said, BMW should definitely have some kind of pin or key for positive engagement of the sprocket like most other engines. Why try to save $1 on a multi thousand dollar engine when that part failing can destroy said engine.
agreed, thank you for your input and clarification. I tried my best to cover this topic accurately and concisely since there wasn't any other solid video on youtube
Only just heard about this. BMW as a renowned engine builder, they design sprocket that have all that stress on them and make them only being held in place by clamping force? While a simple key could completely prevent this. just why!?
It is not a recall and I’ve never seen the crank hub fail on a stock M4. I am the perfect example. I am on my SECOND M4. My first one spun after 4 years of aggressive E85 tuning and 79,000 miles of aggressive driving. My current 2020 M4 is bone stock because I just bought it but I will tune it and pin the crank hub for peace of mind since my friend owns SSR performance. I only recommend pinning the crank hub if you tune on E85. Also, a $2500 job for peace of mind should be done regardless. Especially if you were running Pure Turbos like I was.
I got a f82 stage 2 93 but honestly terrified the other day my car kinda lagged in a way the rpms went down and up a lil while on first gear I barely even pressed it I thought I spun the crankhub but luckily car drove right after not sure what it was. But before you spun your first did you have stock hub?
I was fortunate enough to have a close friend who owns a prominent bmw shop in NY and seen a lot of Crack Hubb spun, this was actually the first upgrade I did on my F82 before stage two tune.
do we know what markets this hub part was installed in? in other words, has this part been installed in all s55 engines, or just the North American market?
The hub is installed in every S55 and is not exclusive to just the North American Market. Although the issue is not very widespread its still good to be aware of it
@@SimplyCarThings Yeah it's very rare and only happens in N54 if you don't rev match on a aggressive shift. The M4 issues seem to have always happened on the DCT people speculate it's due to downshifting hard.
Almost impossible to quantify as millions and millions of miles driven by people who don't report on this issue because they just get on and use their car. It's only a tiny fraction of people who are enthusiasts AND drive hard AND go on to ever have a problem. This issue has been blown out of proportion in my opinion - mostly by people profiting from the sale of the parts to 'resolve' the issue. Of all the cars who've spun a hub. How many worldwide have written off the engine? A literal handful. The vast majority, of the tiny percentage of engines that have had a problem, have slipped, needed re-timing, and they're back off again with no lasting damage. Just enjoy your car. The odds of this are so small it's not worth worrying about.
Unfortunately i dont really think there's a way to tell if the crank hub has been done unless you have service records or photo/video evidence. Unless you take the car apart again
overall it's somewhat rare for this to occur. the chances of it happening are increased if you are tuned but like i said in the vid it's just a case by case basis. some cars experience it, some never do
💙💛💚🧡 Hey, I am thinking of buying a 2016 M3 by the end of this year, how much would it cost to get this Crank Hub done? (im in australia btw) Also, how would I know if it needs replacing? Are there any other issues I need to watch out for, or can do pre-emptive stuff at a mechanic shop? Thanks, Im a big car noobie. Appreciate the help 💙💛💚🧡
What about some approximate prices for all these fixes and issues, like how much did it cost your friend to fix his spun crank hub? Or how much for the preventative fixes? That would’ve helped
Eduardo Pichardo i have two personal friends of mine who spun their hubs one was an M3 bluescluse as mentioned in the video and another with an M4. The M3 has not had a single hiccup since the spline lock fix, and the M4 has been thru 4 hard driven track days with no hub issues. so from my understanding it seems pretty reliable
Eduardo Pichardo both seem like great solutions with good long term results. I can’t recommend one over the other because I haven’t gotten a chance to experience the personal results yet
Just picked up a m4 with 80000 miles on the clock. It's a stage one running around 500bhp.is this something I should expect to happen real soon anynting else I should watch out for Full service history with a year warrantt
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I covered a lot in this video so here are some timestamps in case you’re in a hurry:
- Spun Crank Hub Explanation: 2:13
- S55 Crank Hub Fix: 3:54
- Crank Hub Failure Caught on Video: 8:43
Basically, avoid kickdowns at all cost and be sure to be in the correct gear for racing. This ensures that your torque delivery will be smoother rather than praying on a kickdown. The 2018 and up M3/M4’s have proven to be better in terms of not spinning the crank hub due to harmonic dampening that BMW utilizes. I’ve been on a 100 octane tune for almost a year with 40,000 miles on my 2018 and thank God I’ve had no issues.
I just bought my '15 M4 last week with 38k miles, car is and has always been stock so im praying it stays good for a while. I will still get the fix done prior to tuning just for the peace of mind
Simply Car Things yes sir, 15’s are pretty open to the issue since the don’t have the fixed bed plate that the 2018 and up model has. Fix it once you tune it for sure!
My friend is very famous on Instagram with his 2016 M4 that has Pure turbos and no Crank Hub Fix. He swears that staying in the torque range keeps the crank hub intact. Also he said to stay away from doing DIGS!
thanks for the advice man! yea i always drive in full manual mode with the paddles so i never use kickdown and if i accelerate its usually from around 3-4k rpm. planning on going with the Vargas Spline Lock fix as i have a few personal friends running it after spinning their hubs with no issues now
I dont know if youve heard of Blake's garage but he has an '18 F82 with the revised bedplate design and spun his with a full E85 tune, its definitely still possible but as you stated its much rarer for it to occur in the later model years
I've only ever seen this on two cars, both were mis-shifted and mechanically over-revved. Both had a new hub installed and running again in a couple days. I'm have a suspicion BMW engineered the hub like this on purpose to try to prevent valve to piston contact in the event of a mechanical over rev.
nope. This would actually cause contact. They did this to make the timing chain easier to service. This is coming from one of the engineers who worked on the project.
@Scott You're right, I might not be correct but this is the youtube comment section so I can speculate and say whatever I want. I'd like to think having a degree in automotive technology, 6 years experience as a tech, over ten years experience on the parts side (8 of them at a BMW dealer) would give me SOME background and knowledge but based on your empirical response to my speculative comment I'm sure you must know. Next time I'll be sure to ask your permission before I express my opinion.
@Scott Like I said, only expressing my opinion and speculating, I understand how an interference engine works. Only speaking on my experience and every single one of the (4) S55's that has come in with the crank hub spun hasn't made valve contact. I'll continue speculating and you can continue foaming on your keyboard for no reason. Have a lovely day Scott XOXO
The M3 engine was not developed to be abused or driven hard . you will need to upgrade some parts or its better not to drive it hard to avoid all these issues
@@juancruz-jg5pqThat’s literally exactly what it was developed for.
Have a buddy who works for BMW and he was pretty insistent that it isn't as bad as the internet has made it out to be. My local BMW dealers have seen zero spun hubs to date. So I'm not sure what to believe. No issues on my M3 with mods and it gets driven. Just avoid those money shifts and the kick down function on DCT's.
yea it seems to be a very hit or miss issue with these cars which is so bizarre
I asked in few bmw workshops and only one ever seen that issue once
Same here. Over hyped
@@LemonySnicket-EUC everyone wants to sell that crankhub fix
I work at a BMW dealer too, we’ve had hundreds of F80 M3s come in. Several with over 100,000 miles, none of them have had crank hub issues. Like with rod bearings, if you beat the shit out of your car, over-rev it, tune it, etc. you’re a lot more susceptible to crank hub failure.
Literally just purchased my first BMW today, a 2015 Alpine White M3 w/the 6-spd manual. This bad girl has 47k miles & is in immaculate condition.
I love shifting thru the gears in this beast already, the shifter is like buttah, that's a compliment.
My sales dude straight up told me about this design problem(he owns an M4) but your vid really laid it out in great detail.
I'm going to practice smooth, deliberate shifting for a while before getting "raw" with her & pushing the limits.
Man, this engine is just amazing! Just wants to pull & pull!
Great vid.
Thank you man! Congrats on the new F80! It’s a car you are gona absolutely love, and yea that S55 is no joke pulls hard!
Does not happen to the manual cars that often.
The additional images and videos while explaining are awesome
thanks man! definitely trying to up the quality of the videos
This crank hub does not particularly fail on stock bmws. I have not seen it fail, I use to work for bmw for 15 years and never seen the hub spin out like that. The only issue I have seen was when the serpentine belt gets shredded into the front crank seal and gets inside the crankcase! I actually took the crank hub out and as long as you properly torque the hub, it won’t spin.
Bullshit! I know of three stock S55 that have spun, It’s literally a lottery, doesn’t matter if you’re stock, stage1,2 or 3 it can spin!
@@chrisd2415 did you work at a bmw dealership? Just FYI my theory behind the design is probably they are designed that way. It’s almost a set up for customers that like to race their m3. When the engine fails under warranty you must send out the dme to bmw and they will inspect it and find out how fast the car was going. If they find out that it was on redline and going over 100 mph the warranty will be voided!
Just dont drive it hard to avoid this issue. its so frustrating that i paid 80k for this vehicle and not able to drive it hard as im out of warranty.
@@jb_bmwrepairlyfe4704 it seems like you dealership techs live in a different world than the rest of us. You don't work there anymore so you can give up the act trying to hide BMW's problems. All of enthusiasts with this platform have seen or know someone on a stock S55 that has spun a crank hub.
The German that designed the hub was fired, demoted and then sent to the Eastern front.
Lmao
Probably promoted!!
Nah the designer is a Audi fanboy and had to make us Bmw boys splash more money for power. Fucking turd
No, he was given a raise for driving profit to BMW for the next 2 decades. Greedy bastards. Why not revise the crank between 2015 and 2020? They already have solution in B58. Because they don't want to accept responsibility retroactively.
Just dont drive hard . basically i dont abuse it or drive it hard . zero issues .
I don't think it's as widespread as many think. VANOS issue was "common" on the E46 M3, and supposedly BMW fixed it (faulty bolts) for 2005 and 2006 models, and my own 2006 still blew up at 64K. Even so, I never met any other E46 M3 owners that had that issue.
Still, I am leaning towards the F80 M3 right now and if I end up in one I will do this "fix" first, only because it's crazy how easy it is to get more power out of that motor!
i’d say the crank hub fix is a must if you own an S55, as awesome of an engine it is I wouldn’t want to take that risk. fortunately the OG M2’s don’t suffer from it
I’ve done a poll on this on M3 cutters and searched F80 forums. I’ve found 22 cases of it worldwide. That’s a 0.05% chance of it happening. It’s so so rare. It is mainly caused due to the stalling of engine on gear change (I used S2 logic). Also for some reason BM3 are 75% of them 22 cases. Stick to a good tuner not plug and play boxes for me!
John Couldridge that’s awesome to hear how rare it is. i personally have 2 close friends who had it happen to their car, and when it happens many people are quiet about the issue for warranty concerns especially if they’re tuned. i’m not trying to scare anyone, just letting people know it is a known issue and that it can happen 👌🏼
John Couldridge you’re giving incorrect information. I’m in a south Florida group with 50 (s55) cars. From that, 8 people spun their hubs. All one e85. Unless you’re only referring to stock motors. Then yes; you’d be correct. It is very race to spin a stock hub; tuned hubs is a different story.
Im also friends with 2 bmw techs and they have each completed over 50+ hubs per dealership in under 2-3 years time due to failure. You’re misinformed.
Simply Car Things it’s not as rare as you think; you yourself said you had 2 friends spin it. I personally had 8 friends out of 50.
@@MclarenRacingChannel How many of those S55s were modded(If you know)? Is it a direct correlation to the mods or just to the stock S55 engines in general?
Thunder Chicken they were all running e85 tunes. It is very rare to spin a hub when you’re stock. However, once modded, things change and from what I seen I’d guess 1/10 can spin when running 550-600WHP+ on stock hub
I have a friend with a 2019 m3 with 3k miles, added e85 BM3 tune and spun the hub the same day. I also have friends running e85 with stock hubs and no issues. So it’s a hit or miss.
You can't really say that this is an "issue" from BMW UNLESS you are seeing many cases of crank hub failures on stock S55's. From what I have read and gathered, these crank hub issues are coming from modified S55's. Sometimes parts from the factory just aren't made in regards to buyers putting in hundreds more hp and tq than what it came with from the factory. I wish all manufacturers would make parts heavier duty knowing buyers will modify them, but that's just always the case. So this isn't in my eyes, a BMW fail. Its just not made for the extra power.
100% correct I basically said the same lol
We are seeing many failures on stock s55s. What are you talking about? At this point we have to say this part is clearly the weakest link on the motor regardless of your stance on tuning. It makes NO sense why it wasn't designed with a keyed lock.
Isn't this like less than 1 in 1000 cars or something? There's so much hyperbole on the internet. Very few actual reported cars with this problem imo.
well with 100,000s of cars sold 1 in 1000 is still hundreds of people. And owners with broken engines likely tell someone their engine is blown etc etc
@@dylan-nguyen except they didn't sell "hundreds of thousands" of cars - I'm in the UK and completely accept the US market is larger. But here in the UK, there are less than 100 M4 CP's for example ever sold (and less than 60 M3 CP's).
I don't know if you have a central website where you can check vehicle sales in the US like we have here in the UK but here we can check "howmanyleft.co.uk" and see how many cars were registered in a year, broken down by model. You can see in the UK at least, you'd have to be extremely unlucky to have a car with any issues. My own is 600+ HP and just fine as an aside :)
You've said it well - "someone with a broken engine tells someone else". Complaints about a product always spread faster than compliments because that's human nature. Of the 1 in a 1000 people in my figurative example of people with faults, the other 999 aren't telling everyone they meet how their engines are fine, but the 1 who's isn't is sure telling everyone his is crap lol
The negativity spreads fast - this problem just isn't as big as people think because of it.
I think timing slip is much much more common. So not failure but certainly impacted power. If you look at the part itself, it's a really bad design.
@@cwx8 for sure. I know the part well. It it’s not down to running higher power IMO, it happens (from a video I’ve seen of it happening real time) on sudden overrun/let off. IE, max revs, then sudden 0% throttle. The chain almost “whiplashing” somehow. I don’t think power increases really effect chances of it happening personally.
I’ve fitted a capture plate myself and have been at over 600hp for 18 months or so now without issue. Capture plate fitted only because “they were in there anyways” kinda thing.
I’d certainly rather it slipped than it caused full valve/piston contact! 👍😂
@@Just-Ross Help me out with this one, wouldn't the capture plate not necessarily stop timing drift from the hub slipping? Like if the sprockets spin at different rates, the capture plate will do nothing won't it? Personally if I see some proof that they work I am right in there doing that when I'm taking care of my CP/outlet, etc
Good job 👍🏼👍🏼
thanks Bryan! appreciate the kind words!
I’ve been pushing 600whp (e85 custom tune and Bolton’s) with stock crank hub for 20k miles with no issues. My car is a manual. I don’t overrev the engine or make “money shifts”.
awesome to hear man! yea it's just odd how it can happen to some people and others never have an issue
Exactly, thank you. You get better results when you shift your car in right RPMs (not max RMPs)
Agreed. 6500rpm 3rd gear and up
Optimistic.ZR1.M3 I have been going back n forth with doing a custom BM3 tune stage 2 and I literally just said the same thing...shift at 6500 might actually work. I will get the hub fixed just can’t afford to do both at the moment and my warranty is up in 2 months
@@discotek1198 imagine buying M car and being afraid to reach redline. why even bother.
Some misinformation here. Not related to power but abrupt changes in engine rpm. More hp does not put extra load on the cam train (theoretically it does because cyl pressure is increasing).
thank you for correcting me. the abrupt changes in rpm could also explain why DCT cars experience the issue more frequently due to the speed at which gear shifts are performed
Not power but an increase in torque will as that will cause rpms to gain even quicker..
@@SimplyCarThings Good observation - that seems very plausible.
@@destinationbikeatboxhillin8255 Not correct. My BMW has been tuned from 300 to 500hp (bigger turbo) but the rpm does not climb faster in neutral for that reason as the inertia of the engine is the same. That >might< change if you put on a lighter flywheel though.
@@npharkes under load /in gear it will
“Aww fuckkk” 😂😂😂😂 1 like = 1 prayer for blues clues to be ready by next weekend 🙏
#resurrectbluesclues 🙏
Don't worry, you never had them.
What were you doing exactly when it spun?
Important to add that new B58 and S58 engines does have integrated crank hub's
What year you talking about
Great video, very informative, good job on this. However the percentage of spun crank hub is very very small and some companies that offer the fix have their dedicated army of trolls spreading false info on the forums all over about this. It's like cancer you may get it at some point or you will never have it. Just treat your car with mechanical sympathy and everything will be ok. No money shifts for manuals, for DCTs keep your setting in the middle ( i smoke Hellcats on my stage 2 tune with DCT set to 2 bars) , do not overuse stupid lunch control etc. I can beat anyone who uses lunch control with just good old fashion acceleration fashion. Lunch Control is POS as well as Kick down. If you have that mechanical feeling for your car you can feel that most aggressive DCT setting is not really healthy as well as kickdown. There are cars who are very heavily tuned and have over 90k miles on and have no problems. I use Stage 2 91 tune even though i have very good 93 octane gas available just to be safe ( i had subaru STI before my M4 lol). In the case of serious knock event i bet the crank hub can spin or when something is going on with oil pump etc. Do not panic drive your car hard but with mechanical sympathy. If you don't have it ..... well you will need to pay the price, but the chances are slim. This is the best video explaining the problem. Thank you Simply Car Things!
Great comment. As you say all about mechanical sympathy. This is such a smooth engine with an abundance of torque so there's no need to thrash it and abuse it to get performance
Great video Omar if you are running stock your crank hub should be okay very rare to fail but if you are going big BHP hub fix is essential S55 is a great engine very underrated sorry to hear about your friends BMW hope it gets fixed soon 😎😎
I have a 2020 m4 competition. I was given a jb4. I installed it and then removed it within 200 miles after. I wasn’t comfortable running anything besides stock. I have it away to a fellow m4 owner. I want to enjoy my car and not worry all the time. Also I didn’t like what the jb4 did to my power band. The stock competition tune is amazing, this changed it in a way I didn’t like. I was doing a pull on map 5 and got a misfire at the higher rpms and removed the jb4 that night. Stock and happy again.
I wouldnt recommend a jb4 at all personally. If you decide you want to tune again, go with bootmod3 next time around
@@SimplyCarThings Dinan
Is there any way of knowing the crank shaft has been upgraded from previous owner or prior?
Second this!
Anyone????
Receipts. Otherwise no
While this is a real problem, it's also a very rare problem. It's much more rare than S54 exhaust hub breakage for example. Was there piston-valve contact in your friend's engine?
1 and a half year working at BMW workshop, 3 crank hub repairs was done in my time
I ask in number of bmw work shops in europe and only one said they seen this issue in highly modified m3 with over 600hp. Its so rare that when you've got stock car i wouldn't bother , and even with modified car is worth to take a risk imo.
goin on the BMWCCA forums, you never hear of this outside seriously modded cars pushing way more horsepower than stock. I feel save with my M2C which is de-tuned compared with the M3/M4.
Question, if this is an issue with it coming loose why doesn't anyone just re-torque it every other month or so? Simple tq wrench slides under car, sets tq, boom! Save you 6K
Thank god we have the n55
That one is pretty much trouble free
I always say its best to leave it stock. And take good care of it offcourse
Great intuitive video explaining the S55 crank hub issue. I have a 2016 F80 M3 Dct with a Bootmod3 tune and contemplating the vargas spline lock. What is the pricing for the fix? I was told 4000$ for Maximum PSI to do this fix which I believe is pricey for a preemptive measure. Albeit I dont run my car as much as Blues Clues and I only have 35k on the vehicle. With my low miles and the new G80 awd S58 coming out I would rather trade the F80 in on the new G80 M3 if the crank hub fix is as pricey as the cost of buying a used economy car.
I was wondering what happened to Blues Clues. Cant wait for him to put out more content on the f80.
thanks for watching man! Yea i feel like that is quite pricey for the fix, I am certain it can be done for less. I would weigh your options and wait of course to see how the new G80 looks like!
If your in the ny area mpire performance uses the Vargas crank hub
@@Justanothercarguynyc Thanks. I am on the east coast but I feel, the f80 chasis along with its rwd is at its limits of usable power stock. Although I am tuned. The Awd G80 is a much needed platform for adding horsepower for the M3/M4. Awd alone will make the M3 at least a half second quicker than the rwd and make the chasis more usable when putting power to the ground in the real world. Therefore installing a preemptive crank hub fix to add even more power to the rwd chasis seems less attractive.
I got quoted 3600 in Canada so 4kusd is bonkers.
When I hear that this problem can happen on standard engine but some high powered tuned engines have lasted a long time it make me think its more down to the people driving the car rather than a massive problem with the crank hub design. How many of these actually fail as a percentage of cars made? Is it really the problem that it's made out to be?
I've wondered if BMW changed the way the car come on the power back in 2016 to lesson this, they said it was about driveability, because the pre-2015 BMW software the boost came on much stronger lower down. When I got the car back from the dealer after that software update I thought they had detuned it! BTW I'm sure there are OEM friction discs between the sprockets on the stock hub and it is debatable that keying the hub just adds another stress point. If you are going to do it a spline sounds the best solution.
I was reading about the friction discs as well, im not sure to be honest but so far all the fixes seem to be doing their job. it's definitely still an issue. The car in the video was a 2019 M3 CS with upgraded turbos and meth that had its hub replaced after just a few thousand miles. Granted it was modified pretty heavily lol
When it spun, did he use the paddle shifters or the kick down when you quickly stomp on the gas pedal ? Or did he over rev and up shift at a very high rpm? Can’t really tell what’s going on in the video
You cant go over the max rpm in an automatic
Yes you’re right
Recommended to shift at 6500 3rd gear and up for Stage 2 E85
Another theory is there is an high stress instance where the friction ring get cracked then makes the spin more likely
how much did it cost to get the crankhub fixed
So should i worry about this issue if i am going to be stock?
Super interesting video; I appreciate the conciseness as well! That footage was heart wrenching even with the heads up, lol.
appreciate the feedback man! yea that footage was tough to watch even one year later haha
Stage 2 VF tune, full bolt ons and exhaust....CSF intercooler....no issues 76,000miles
Never any e85 , the tune is super aggressive to exploit the e85 power making potential
wow, that's awesome to hear. it really goes to show how random the issue is
Maybe a stupid question, but can you just weld the whole thing together?
The CS and GTS both run a maximum of 442lb/ft torque on this stock crankhub . Way less than a stage 1 flash. BMW know its limits.
Interesting, they definitely know.
Was it and up shift or down shift cause it sounds like he shifted up not down
Did BMW ever address the issue? About to get a 2020 M4
💙💛💚🧡 Yes the new S58 engine fixes it
When he spun his crank hub did he happen to bend any valves or anything like that? Did just the new upgraded hub fix it?
S55 is one of my fav engines so much tech
same here bro! love it
more of an s65 fan myself
Actually just alot of boost, nothing that special about it and crank hub is a serious flaw. Giddy M fanbois are annoying
@@fzr1000981 water injected you clown cools the air before it goes into the cylinder
Ok, so what "clown"? What does that have to do with crank hub failure? You can run 20+ psi on many turbo engines with ethanol and/or water, RS3 guys are running over 30
I now this is an old video but I am looking to purchase a S55 engine car (M3 or M4) - How do I go about checking if the crank hub is about to give out? will a BMW tuner shop be able to take a look? or most likely they will have to take the engine apart for it to check?
How much does it cost to upgrade the Crank Hub?
The issue was fixed in Dec 2015. Buy a 2016 onwards to be better off
How is this not a recall?
If I just want the GTS Start Up Roar and Burbles and I get catless downpipes would I have to worry about this too much? I am not a crazy power head I just want it to sound good.
how bad was the engine damage on the m3 video you experienced? fixable or new engine?
we're not sure yet since the head hasn't been removed. but we'll find out soon
Whats the update on the car now?
@@pacificrocknorthwest5612 its fixable. not that expensive
Do you know if the crank bolt was still tight after spining the crank hub
@Simply Car Things I just bought M4(non comp) with 28.000km, on how much i must replace crank hub i don’t want to tuned my car.?
Amazing video. I am looking at getting an M4, so its great having this information. Thanks!
no problem! Thanks for watching!
the crank hub fix is a must when tuning this egine beyond stage 2 but the fail rate of it happening when just driving with a tune is below 1%.
so it could also be just an factory failure on less than 1% of the cars world wide so just do the simple fix and you should not worry to push beyond 600hp
yea i believe you, it seems like every person who spun their hub ran E85 or 550-600+hp when it spun. That seems to be the "breaking point"
The hub looks the same as the N54 and they really do not suffer from spun crank hubs with high boost. Why?
timlad123456 the n54 when hit go above the m4, the crank hub has same failure, just not mentioned as much.
n54 isn't pushing 750+ hp
S55 has more components on the chain too. So there is already more load on it before even adding power.
It has like 100 radiators ! Love the s55
Whats the cost for crank hub replacement?
Sucks to hear what a great engine the s55 is at the same time “ don’t push it too hard” my car is stock and to hear it happens on stock cars really upsetting
yea it's an amazing engine if you take the hub slip out of the equation. id say get the fix done for peace of mind and just enjoy the car as much as you want
I am about to install a jb4 on my competition package 2020 m4 but I am scared. I will be running stock just with stage 2 and 93 octane. 3500 miles on car. Burger said the comps have higher flow exhaust and stage 2 is good to go as long as 93 octane is used on stock ZCP exhaust. Do you think I should do it or am I making a mistake? I won’t run e85 or race gas ever more than likely.
Widespread? Wow, how many have they sold and how many have failed?
A zillion and a handful.
Please correct me if I'm wrong but I think there is a much cheaper solution to this, there is a lock that you can put on and it protects the hub from spinning. And I think it cost only 100-150$.
Spline lock is the right name. Everybody can do this just to be sure that something like this doesn't happen
Do you know any good shops in Texas that may do this fix?
The S58 and B58 also have the timing chain on the back of the engines. Every post 2007 bmw inline 6 turbo engine has this problem from what I read.
BimmerM5e39 It’s a first for the B58/S58. The N54/N55/S55 all have their timing chains & VANOS units in the front of the engine
Ugh what? Really? I ragged on VAG owners for years for having a motor with an impossible to access timing chain. Sad to hear we joined the club.
I would’ve also mentioned that probability and the percentage of cars that it has happened. Yes if you’re anywhere above 600whp 100% do your crank hub. But if you’re tuned and you drive like a normal person with a brain then you should be just fine. Spun crank hubs happen to people who rapidly shift down to first gear or really just push the car like an idiot without taking proper precautions.
This is simply not true. The hub can step out of timing slowly over time. Then one day you engage 1st from park and it'll let go.
2019 m2c with 17k miles ready to go stage 2. Should I upgrade my crank hub? Thinking +120-150hp. I read that after 2016 bmw fixed the issue but i cant find more info
I’d only upgrade the crank hub if you’re going on E85 tbh.
Would the 2017-18 models be less susceptible to a crank hub issue without a tune as well?
All M4’s are impossible to spin the crank hub on a stock tune. I’ve never seen it happen. I’ve seen it happen only ONCE on a 2019 M4CS that was stock but the car was tracked and abused as soon as the driver bought it. Let’s not forget that the CS makes 443 pounds of torque rather than 406, so it already is “tuned” from the factory. Just some food for thought. If you are stock, you will NEVER spin it. And if you have a stock CS, you have a 0.0001% chance of spinning it lol.
Are there any cases of stock/non-tuned s55 spinning crank hubs?
Nope only heavily tuned ones
@@ruskibruski what does “heavily tuned” consist of?
This would be a recall surely ? if indeed it is actually a problem with any frequency ... I own an M4 Comp and never heard of this issue ...
BMW has failed to acknowledge it, if you read online the crank hub is definitely an issue, although the frequency of it doesn't seem to be incredibly high
Def a big issue don’t tune your car if you want to be safe. Otherwise get the fix or roll the dice
I just bought a 2020 M2C. Is there a technical/safety recall on this problem? It appears to be costly and can lead to an accident if it fails and the engine seizes.
how’s she been? fine, i’m sure. they have blown it out of proportion.
Dude my F80 barely has 8k miles 😳 I need to drive it more. Thanks for this cool video
you'll be fine bro! thank you for watching!
Fernando Martinez Reyna you better drive it and break all the common things before your warranty wears out
I heard kickdown causes the crank hub failure
yea i've heard that too, however it's not a definite cause
nobody really knows, but it is one factor
Estimated cost of replacing the hub? (Prior to failure and damages)
1,000 if you wait till the engine takes a crap it can be 10000+ depending on the damage .
Are the N55 M2 Engines at risk for a crank hub failure when running 4 to 500 BHP?
No, only the Comp
Don’t modify it won’t happen Bmw design this cam hub to prevent damage to the valves if the lock pin breaks
Jeff L Wrong. I’ve replaced engines under warranty on untuned cars (I’m a dealer tech). Do research before posting garbage on the internet.
Hey did the car re start after??
I would not think that power output would affect valve-train load to cause this. Only increased RPM should cause increased load. Driving near redline a lot or over-revving from an incorrect shift should be the only causes. That being said, BMW should definitely have some kind of pin or key for positive engagement of the sprocket like most other engines. Why try to save $1 on a multi thousand dollar engine when that part failing can destroy said engine.
agreed, thank you for your input and clarification. I tried my best to cover this topic accurately and concisely since there wasn't any other solid video on youtube
That's true though torque transfer could. I.e. shift at redline at high altitude could do it.
8:43 Crank Hub Spins RIP
Only thing that needs to be fixed is the best exhaust note lol. M2 N55 is my favorite turbo sound
gotta love that N55 sound! cant get enough of it
What’s the cost to upgrade the crankhub
I can't fathom why it was designed like that.
Only just heard about this. BMW as a renowned engine builder, they design sprocket that have all that stress on them and make them only being held in place by clamping force? While a simple key could completely prevent this. just why!?
Great video my man! I was always a bit nervous about that when I owned my old f80. I think I'll go with the Vargas fix if I ever get another s55
thanks man! Yea i feel like you cant go wrong with the Vargas fix!
Mic Raw go with Maxpsi it’s 100% fixes the problem.
Do you know if the Vargas fix is safe?
@@metalprix4601 I've heard it's fine but like bluesmurfr80 said, max psi is probably the best option
How many hours does the book say is needed to change it
IVe been looking into an f82 but this crank hub issues is making me think twice of a future purchase .. 😢 Is this considered a Recall ?
It is not a recall and I’ve never seen the crank hub fail on a stock M4. I am the perfect example. I am on my SECOND M4. My first one spun after 4 years of aggressive E85 tuning and 79,000 miles of aggressive driving. My current 2020 M4 is bone stock because I just bought it but I will tune it and pin the crank hub for peace of mind since my friend owns SSR performance. I only recommend pinning the crank hub if you tune on E85. Also, a $2500 job for peace of mind should be done regardless. Especially if you were running Pure Turbos like I was.
I got a f82 stage 2 93 but honestly terrified the other day my car kinda lagged in a way the rpms went down and up a lil while on first gear I barely even pressed it I thought I spun the crankhub but luckily car drove right after not sure what it was.
But before you spun your first did you have stock hub?
I was fortunate enough to have a close friend who owns a prominent bmw shop in NY and seen a lot of Crack Hubb spun, this was actually the first upgrade I did on my F82 before stage two tune.
nice man, that's great you were able to knock out that for preventative maintenance
do we know what markets this hub part was installed in? in other words, has this part been installed in all s55 engines, or just the North American market?
The hub is installed in every S55 and is not exclusive to just the North American Market. Although the issue is not very widespread its still good to be aware of it
I never heard of this happening in the N54, and it's pretty much the same design, not sure what's so hard to maCHINE A FKN gUIDE PIN!! BMW!!!
it's happened to N54's as well, i actually have a friend who's crank hub spun on his N54 unfortunately. it's just not as common thankfully lol
@@SimplyCarThings Yeah it's very rare and only happens in N54 if you don't rev match on a aggressive shift. The M4 issues seem to have always happened on the DCT people speculate it's due to downshifting hard.
@@JackRR15 great points!
@@SimplyCarThings its rare on the n54 not common at all
That sucks... I still want a F82 after the E92 335i hits 700whp, crank hub fix will be the first mod lol
most definitely! F82's are awesome bro
Thanks! I'm very interested is the rate of failure in a stock setup when driven hard.
Almost impossible to quantify as millions and millions of miles driven by people who don't report on this issue because they just get on and use their car. It's only a tiny fraction of people who are enthusiasts AND drive hard AND go on to ever have a problem. This issue has been blown out of proportion in my opinion - mostly by people profiting from the sale of the parts to 'resolve' the issue.
Of all the cars who've spun a hub. How many worldwide have written off the engine? A literal handful. The vast majority, of the tiny percentage of engines that have had a problem, have slipped, needed re-timing, and they're back off again with no lasting damage.
Just enjoy your car. The odds of this are so small it's not worth worrying about.
I’ve read from multiple sources it’s around 1%, but that’s difficult to confirm.
So whats the new part do differently than original..??
Spoke too soon. Thnx
no problem!
Hey there, what were the two companies you said in the video for the fixes? The echo made it hard to understand.
Lance Walkington maximum psi & vargas tuning 👌🏼
Thanks for the video, thumbs up. But when you say “widespread” you need to provide some kind of numbers, nothing anecdotal.
Did blues clues go with the Vargas or the maximum psi hub?
Vargas hub 👍
Do we have a percentage of f8x cars affected yet? Is this more prevalent than rod bearing failure on e9x M3's?
Like .05% much more rare than rod bearing issue lot of dealers never heard of the issue
Justin Kuervers wow that’s quite a low percentage
How can i tell if the crank hub was done on my s55 f82 ??? Po said it was done but no proof ?!
Unfortunately i dont really think there's a way to tell if the crank hub has been done unless you have service records or photo/video evidence. Unless you take the car apart again
So is this a problem if you tuned it or can it also happen without being tuned
overall it's somewhat rare for this to occur. the chances of it happening are increased if you are tuned but like i said in the vid it's just a case by case basis. some cars experience it, some never do
Thanks for sharing. I will avoid S55, period.
thanks for watching! I wouldnt avoid the S55 personally, just get the crank hub fix completed on the car and you should be good to go after that
cant afford the s55?
@@SimplyCarThings how much is the fix
@@geo745don Studio RSR is doing it for $2k out the door
@@SimplyCarThings thanks
the reason I brought amg gla45. happy with that .cam chain sproket spinning on the shaft . bad design.
I test drove a M4 the other day, it felt like a boat compared to my M235i
the car does feel a bit big.
this boat will gap you
It’s crazy because they both weigh the same about 3,800 LBS
💙💛💚🧡 Hey, I am thinking of buying a 2016 M3 by the end of this year, how much would it cost to get this Crank Hub done? (im in australia btw) Also, how would I know if it needs replacing? Are there any other issues I need to watch out for, or can do pre-emptive stuff at a mechanic shop? Thanks, Im a big car noobie. Appreciate the help 💙💛💚🧡
What about some approximate prices for all these fixes and issues, like how much did it cost your friend to fix his spun crank hub? Or how much for the preventative fixes? That would’ve helped
do the crank hubs fail on stock engines?
No, that would be covered under your warranty anyway
What do you know about the VTT Spline lock i want to get mine done but don’t want to pay so much is it reliable?
Eduardo Pichardo i have two personal friends of mine who spun their hubs one was an M3 bluescluse as mentioned in the video and another with an M4. The M3 has not had a single hiccup since the spline lock fix, and the M4 has been thru 4 hard driven track days with no hub issues. so from my understanding it seems pretty reliable
Simply Car Things would you go VTT or Max PSI?
Eduardo Pichardo both seem like great solutions with good long term results. I can’t recommend one over the other because I haven’t gotten a chance to experience the personal results yet
Just picked up a m4 with 80000 miles on the clock. It's a stage one running around 500bhp.is this something I should expect to happen real soon anynting else I should watch out for
Full service history with a year warrantt