Why BMWs Don't Need Throttles

How BMW's Valvetronic Works (In 60 Seconds)
Detailed Explanation of Valvetronic - • What Is Valvetronic? B...
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Did you know some BMW engines don’t need throttle valves? These valves are used to regulate how much air an engine gets, and thus how much power it makes. The more you press the accelerator pedal, the more the throttle valve opens. BMW uses a different strategy, which requires a complex system called valvetronic. This offers theoretically infinite intake valve opening variations, by using a worm gear that rotates a cam to various positions.
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[@EngineeringExplained]

Need to learn more? Gross! You could just keep scrolling and everything will be dreamy. But if you really must satisfy your curiosity, here's a *long* (4 mins) video explaining the inner details of how BMW's valvetronic works: kzbin.info/www/bejne/enzJlIltna6Hj6s

[@daves1646]

Didnt’ know your younger bro was into engine design too. He’s good!!

[@davidcakers6818]

Nissan have had a system similar to this for years now, is this any better than the Nissan version?

[@lukeamato2348]

I'm actually building an engine, a small 2 cylinder 500cc with a small turbo that has an mgu-h system. I'm currently working on the head that will be using something like koenigsegs free valve and there will be no need for a throttle body

[@lukeamato2348]

I'm eliminating as many components as possible

[@robertprince2504]

Looks a whole lot like a Tesla Model 3 at the end with the turn signal!

[@RobertEdwinHouse17]

German car design philosophy is “if it ain’t broken change it until it is broken”

[@fukhue8226]

Change it until it doesn't work and is as complicated as a Swiss Watch!

[@K4R4SHY]

"change it before its broken or your going to regret it".

[@hush6149]

@@fukhue8226 change it until it is no longer an Austrian watch but an Austrian gun

[@unlisted9494]

Usa car design philosophy: change nothing, make it heavier

[@davemccage7918]

@@unlisted9494your comment is about, I don’t know, about 50 years late?

[@xxtwobitxx]

The turn signal at the end, lol. You know I thought that was a myth but just the other day one cut me off no signal or nothing

[@iGetDown420]

No other car has done that before?

[@sebidiebiene9526]

@@iGetDown420 nope, just bmw's

[@iGetDown420]

@@sebidiebiene9526 that’s crazy I asked someone else a question then you popped up

[@ifell3]

Was just going to say the exact same!

[@danixsc]

It's very usual from BMW drivers to do that

[@robertlopez6092]

I removed the turn signal off my BMW for weight reduction 😎

[@duck5304]

Rookie move, I removed the whole engine off my BMW for weight reduction, gone down 300 pounds

[@cunnieseverywhere]

i removed the car off my BMW, gone down 3395 pounds

[@FreeLeaks]

@@cunnieseverywherey’all are amateurs, I drive in zero gravity for ultimate speed and weight reduction

[@JOHNTSHEA]

We don't need no stinking turn signals!

[@kg-Whatthehelliseventhat]

I drive my chevrlegs.

[@sipdachery3]

As a BMW owner, I can confirm that valvetronic is complicated and expensive. Just one sensor on the valvetronic system is over $700.

[@JoseChavez-rr6og]

Sell it . Buy a Honda or Toyota heck get spicy and get an Acura or Lexus

[@WayToManyAssassins]

​@JoseChavez-rr6og why would anyone go from a bmw to a Toyota. Like seriously 💀 People drive german cars for a reason

[@sipdachery3]

I actually have a Honda and a Ford as well. All three cost me less than I made off my last truck.

[@thereinthetrees_5626]

@@WayToManyAssassinsbecause they don’t want to spend 10 grand to fix parts that are pretty much 20$ in any other vehicle

[@joshroi8610]

@@WayToManyAssassinslmfao yeah, to stay broke. I own all Lexus, Toyota and Nissans. I also drive professionally. Huh, funny how a professional driver, who drives harder than 99% of people on earth, drives more, drives faster, etc… drives these cars instead of German. Oh…. Because the only good German brand is Porsche. Maybe if you were a car enthusiast, driving enthusiast, ever driven a day in your life, or just knew anything you wouldn’t have said something so ignorant 🤷‍♂️😂

[@racegod69]

Consumer: can this be repaired if broken? BMW: repaired?

[@Syncopia]

"Discard after use"

[@bryandevries7210]

Lol!

[@bryandevries7210]

Lol!

[@5.0mcflurry71]

I heard the Crack in your voice when you said repair? Lol

[@tariqziyad1338]

BMW: "Why repair when you can literally buy a new car. Free service for 5 years, duhh."

[@zakiNBG]

I drive BMW... and my coworkers keep trolling me that i will break my car because i use the turn signal too much (like you supposed to)

[@AnonymousFreakYT]

When I got my BMW, I joked that I was the only BMW driver who actually used my turn signals. Then the turn signal broke. And I figured it out - it's not that they _DON'T_ use them, they just don't *work*.

[@marcokrueger3399]

You are a good person. We need to protect him at all cost!

[@keirstitt8277]

I assumed that they are optional extras which most BMW owners choose not to get.

[@BloodyMobile]

I guess you're the one bringing the statistic back to the middle xD

[@FilipeNeto616]

I'm also a owner of a BMW and I use turn signals all the time, 'cause if I don't, the lane warning asisting system annoys me with some steering wheel vibration

[@cringeroaster7809]

This quote is fit perfectly here Bmw have problem for every solution

[@ohyeahyeah1793]

What’s the problem?

[@cereal-killer4455]

@@ohyeahyeah1793valvetronic, did you not see the video?

[@braaapnationtj7282]

And it’s really cool too because a valve job now costs 5x as much and is 2x the labor

[@BRP-Moto-Tips]

I feel like anything German that finishes with "tronic" has a 200% chance to break

[@bryanmasis1595]

Now that I think about this, as a European technician, this is kind of right 😅😂

[@Zipfei_Kloatscher]

Multitronic.

[@sifisosithole6739]

mechatronic lol

[@guillaumecpls]

K-Jetronic 😆

[@SoI_Badguy]

Cut out every word between "german" and "has" 👍

[@phrodendekia]

You gotta pay a throttle monthly subscription

[@younggeezoneplus3311]

You hilarious bro 😂

[@itiswhatitis1623]

Probably not far off you will probably have to pay for a monthly subscription for extra throttle

[@x2e4]

Lmao 🤣👌🏼

[@acaseofcorona]

For better throttle curves that’s true

[@curedham2963]

wouldn’t surprise me

[@saturatedodin476]

Can we just appreciate how well made this video is.

[@TexasBean956ALV]

🔥🔥🔥🔥

[@6oLsh0i6o0z3]

Ok i go appreciate now

[@Will-fs7oz]

I’m late but I don’t think those are his animations I remember seeing them elsewhere

[@natjam0205]

Can we just appreciate how you're dying for him to acknowledge you lol

[@UncleTerrance]

I had an M4 cut me off to the point where i had to lock up my brakes the other day. No indicators, no apology wave, nothing. I got up beside him and gave him a beep to get his attention so i could question the thought process and he looked at me, shrugged, dropped a gear and dipped. I've heard you have to lobotomise the part of your brain that processes turn signal use or basic human decency to be able to buy one 😂

[@jerichostevens2711]

karma will come back to him in the form of repair bills.

[@e90baby]

@@jerichostevens2711not much goes wrong in those m4s unfortunately

[@natjam0205]

You were definitely speeding up to try and not let him in... try to know your place next time and slow down, then you wouldn't get cut off lol

[@Leymora]

​@@natjam0205 "Know your place" lmao how big is your ego?

[@pontiac_montana]

Meanwhile my car just has a cable attached to a metal flap.

[@everyhandletaken]

The way God intended.

[@OneNidim]

It’s something that never needed to change. The only thing the emissions mandates have done is caused cars to become less reliable but more efficient

[@aniruthdinesh9156]

It's the best, be happy

[@dankgankster4100]

Sometimes the simpler option is the best option

[@adisun9053]

In case cable break just tie a thread and pull it through the open window 😉

[@970357ers]

The consumer: "How much more complicated and expensive can modern BWMs get?". BWM: "Yes"

[@Bleachanna]

They've had this system since 05ish.

[@Juras2137]

BMW: "How much more tech we need to install and how much more complicated they need to become to be able to keep up with competition so you keep buying our cars" The customer: "Yes"

[@gtileo]

More expensive, more complicated, uglier, less reliability After your lease is up, throw it in the garbage before it costs you and the next owner the cost of a new one to repair

[@Bleachanna]

@@gtileo y'all are so over dramatic

[@marcokrueger3399]

@@gtileo You guys always say that without actually proving anything. I guess it's because there is NO issue with reliabilty with these engines!

[@TheeAdamG]

That sounds like a nightmare to get fixed “when” that breaks

[@dkdanis1340]

Well they had this for years and it doesn't have issues. Plus it's not that complex with few rockers and steper motor.

[@Henning_Rech]

My car is from 2005, developed in the mid 1990s, and has this system. Don't think it is something new.

[@roadshowautosports]

Could you share the cost of repairing or replacing the valvetronic system if necessary? That would be a video on itself, wouldn’t it? Great demonstration!

[@fukhue8226]

Some Ford V8 engines cost $3000 to change spark plugs. Why? Because they made an engine with three threads holding the spark plugs in and were blowing plugs out of the head so some smart engineer thought making the plug longer (much longer) was a good idea. Now they get stuck in the head and you have to remove the heads from the engine, take them to a machine shop to have the broken part of the plug removed.

[@pizzlerot2730]

​@@fukhue8226what does that have to do with anything? If you meant it to be in defense of BMW repair costs, let me just remind you that validity of criticism is not a zero-sum game; just because a criticism of the competition may be valid, does not make the original criticism is any less valid. Both can exist simultaneously; both can be wrong and suck.

[@MidshipRunabout2]

​@@fukhue8226Okay? 3 valves also get the hate they deserve, BMWs don't and people praise them up to the sky, what's your point?

[@maxemilleo1]

Depends on the motor valvetronic 2 or 3 changes the quote drastically and also point of failure. With that being said if it does fail car can still be driven just not efficiently. And not at maximum output but can be driven unless you are unlucky and the eccentric shaft gets stuck in partially actuated position

[@rantANDrave1987]

That turn signal jab got me 😂

[@theadventuresofzerotomillions]

Word for word the thought I had at the end.

[@cl4ster17]

It's a "let me pass, slowpoke" signal. It usually comes with automatic headlight flashing.

[@veljkostejic9866]

had to throw it in

[@jimi272]

Hahah, the best part that no one noted is that it’s a Tesla model 3 indicator😂😂😂

[@MRMechanicRC]

“This offers theoretically infinite valve variations” As well as infinite repair bills 😅

[@loopje]

and the dealer won’t even know how to fix it. infinite diagnostics first

[@RonniePTexan]

German Engineer: Let's replace a cheap, long lasting part with thousands of dollars worth of parts that won't last! The rest of the world:...

[@j.c.ubagox873]

that true

[@epaminontas6972]

It's actually very reliable. My e90 has 227k miles and I just recently serviced the valvetronic system (very easy)

[@loopje]

@@epaminontas6972 do you know what anecdotal evidence is?

[@TheSamplebridge]

This cant possibly fail catastrophically

[@porschelover04]

It actually can't, since there's a throttle body present as a failsafe. The newer Valvetronic systems are pretty solid, older ones admittedly had some issues.

[@xxemla]

it very rarely does and when it does fail its always due to lack of maintenance

[@connerlayman142]

CEO: what did you do today? Engineers:We made VTEC with a 300% chance of breaking CEO:Excellent

[@ferrumignis]

Valvetronic is not VTEC and does not perform the same function as VTEC. Did you bother watching the video or just jumped straight in with the daft comment?

[@maplearrow1842]

German car companies in one sentence: let’s replace simple widespread designs with overly complicated ones.

[@robmccormick8155]

Want to top up your washer fluid? Refer to owners manual. Please see your local dealer and speak to your service department. That'll be 150 dollars please. Also, your monthly heated seat subscribtion is about to expire.

[@EliasRizk53]

These days all car brands have complicated designs

[@ExileXCross]

no, everyone except dodge and gm have their own take on this concept. Tho I think GM tried with displacement on demand, but Ford is Ti-VCT, Toyota is VVT-i, Honda is i-VTEC, and so on. They all work differently but do the same thing where the valves are taking up most of the function of the throttle body.

[@aarondougherty3719]

That’s the power of German engineering

[@hlayani]

As long as it's more efficient

[@175dell]

Protip, if the valvetronic motor fails on the n55 you can manually set it to max valve lift and leave the motor unplugged, forcing the engine to use the throttle body. Haha

[@paragan2009]

Hmm i wonder if it would work on the compact version. There is one for sale for about 500 dollars yet they say the valvetronic doesnt work.

[@ThisTimeTheWorld]

​@@paragan2009buy it for parts and sell it for scrap

[@zeppkfw]

is it slower?

[@175dell]

No it seems to perform just fine but MPG's go down a noticeable amount.

[@kcspeed9980]

That’s funny, as a side note sort of related, many amateur racing teams delete the vanos system on the engines, they just set the cams to max. Also vtec delete. I’m talking about road racing in particular. I wonder if you could delete the throttle body and reduce the airflow restriction?

[@itsmarshall3843]

That shade you threw 😂😂

[@farmerbobbygrows3338]

More parts to break. The best engines are the simplest. More complex an engine is the more prone to failure.

[@conwaylai8562]

Use electric motor, simple and more powerful! Then use a fixed revolution combustion engine to generate electricity.

[@highqualityorangejuice420]

some people like overly complex stuff tho@@conwaylai8562

[@yannick7230]

-Did you know some BMW engines don't need throttles? -Yes, they make diesel engines

[@robertbennett9949]

Beautiful response.

[@jacksonwalton7404]

That’s what I thought too

[@dkis8730]

Don't diesels have a throttlebody as a failsafe to prevent runaway?

[@tiagobelo4965]

@@dkis8730 nope, runaways are not something that is easy to get with electronic/common rail injection as the pumps can be shut off, and the injectors won't be getting the signal to open

[@sgriffiths1448]

@@tiagobelo4965 while some diesels have been known for the pumps or injectors to stick open, typically a runaway diesel is fed by oil. Usually a blown turbo seal. A hot diesel will run on oil at max rpm the oil will make it run at until either the sump is run dry or it throws a rod. Either way if you cant stop air getting in its game over

[@doncarleone973]

That was a pretty damn good explanation. Well done Sir

[@mr-oz5xb]

Bro had me in stitches when he said just because its there and showed the indicator switch 😂

[@aarons7836]

never underestimate the Germans' ability to overcomplicate a simple design

[@dudarino666]

Its actually an insanely simple system compared to many others. look at some dyno charts and see just how much torque the motors make at low RPMs. Vtec is more complex that VANOS or Valvetronics

[@jama211]

Always trying to feel superior huh?

[@michaelshaw4950]

Toyota has a similar setup in their cars….

[@akimbanguehe3454]

I think they still use that drug reserves from ww2 when they designed those cars😅 seriously at some point they used drugs in small amounts instead of coffee

[@cefb8923]

​@@dudarino666VTEC seems to never break (if you change your oil like you should). "It's a simple design, it just has four times as many components." Lol

[@trustme2001]

No wonder these damn things break down all the time.

[@watema3381]

Was just about to say. Needlessly over complicated for minimal benefit.

[@skoll9004]

Forgot to note that they only last for 60k miles

[@rayraycarter04]

@@skoll9004 mines sitting at 130xxx miles 🤔

[@sgtdonut2407]

Poor maintenance 🤷🏽‍♂️

[@thatvolvoguy6565]

New tech takes time to be perfected even earth wasn't made in a day

[@daviniafelipe4412]

Thanks. Good video. I'm never 100% sure I can make money. Never place 100% of your savings in just one type or type of investment

[@sergio-gw3ju]

Always aim for a week. Set your maximum cups lost per week. it's still perfectly logical, it's quite passive and rewarding

[@manuelolaf772]

Every investor's dream is to find a strategy that guarantees, if not 100% success, at least 99.99%.

[@jeanneberengere8063]

It's like that. The crypto space is a very sensitive area. It took me two months to understand the benefit of functioning correctly, the adaptation saved me. Thanks to the expert, John Joseph

[@gyorgyikestefania5801]

What sets John Joseph apart from other account managers is his ability to comply. His managerial skills are second to none. With profitable weekly signals, one can only be grateful.

[@lozanocorona8448]

wow so you also have business relations with Mr. John? Honestly, this guy is impressive. It's unfortunate that you only found out about it through the comments. He is the one who guides and inspires me.

[@Subpac_ww2]

Variable valve lift gave tuners a whole new world to exploit. That's why new BMWs with tunes are such beasts. It's crazy.

[@FifyKaqiqiPain]

"Just because it's there, doesn't mean it's necessarily used"

[@7ovinadventures916]

Talking about their brain when they drive

[@constantingiciu29]

That one got me too, epic bruh✌️🤣

[@MarksTournaments]

As he shows a Tesla stalk

[@zazo5525]

Cough cough heated seats cough cough

[@rampage3337]

@@zazo5525 which Tesla did first

[@Anuj_Chouhan0099]

“BMW doesn’t need throttles,they need a good designer” -- Every car guy

[@honor9lite1337]

Understood.

[@rishigaming7992]

That last indicator troll😂

[@PalpatinesPlumber]

"Wait there's an indicator stalk in my car" - Always has been

[@keirstitt8277]

It's for operating the screenwash isn't it?

[@Karl_Kampfwagen]

​@@keirstitt8277 That's on the right side of the wheel, and is marked with a good Pictorial of settings. The stalk on the left side says "OBC" on the end (cycles On Board Computer functions), and in reality, when I used the turn signals on my 325iS sport coupe, everyone else cut me off and sped up, just to be pricks (SF Bay Area is the best, right?) and block me in... Now I have a 325xi Touring wagon, and I rarely use the blinkers, because I can just fly past everyone.

[@BaldyTheOnlyOne]

@@Karl_Kampfwagen On my summer car the indicator stalk is on the right side. granted, it's a 1975 pre face-lift '02 painted Inka orange :) Back when cars were colorful..

[@Karl_Kampfwagen]

@@BaldyTheOnlyOne I scooped up a BMW Individual build 2001 325xi Touring wagon. AWD, manual, M-Performance package. Someone spared no expense on this. And they chose the M5 color, Orient Blue Metallic. Older cars are fun, like the RWD E36, but the refinement and control of the E46 is just paramount to none.

[@emissarygw2264]

@@Karl_Kampfwagen sounds awful. I hate when people drive like that. It's a bit more chill over where I live, but if I go downtown it's a crap shoot

[@jono6379]

That ending was savage🤣

[@homestyle2000]

I own a BMW with valvetronic. I have better throttle response in the car than I’ve had in several other naturally aspirated cars. Its fun to joke about things breaking but the tech works, the car is extremely responsive. On the racetrack i had a charge pipe explode on me and i was still able to drive the car hone without issue because i still had throttle control. Valvetronic saved me that day.

[@Roger-fv9pw]

The ultimate driving machine. By design. Thanks E.E.

[@Wayfinder_One]

That last bit was f*cken gold

[@jimi272]

Hahah, the best part that no one noted is that it’s a Tesla model 3 indicator😂😂😂

[@rustyshackleford2808]

I use my turn signals 😢 sometimes even on curves cause of muscle memory 😭

[@hilossrt4]

Remember people: the more complex a system becomes the more likely some part of it will fail

[@Modelero]

It would make sense if BMW didn't start to use the valvetronic 20 years ago...they just increased the travel to minimize even more the valves travel... They removed the throttle bodies so they didn't make it more complex, but less

[@campbellbrown3726]

@@Modelero I thought he says they still use them as a failsafe? A fairly modern 3D image of a BMW was shown with the throttle body still present no?

[@ANormalLemon]

​@@campbellbrown3726 they just want it to work but want it to work.

[@sasukesarutobi3862]

Lusser's Law is really not as widely known as it should be.

[@TheHuskyK9]

Got it, simplify it down just having a brick as an engine

[@erizfolkz31]

"just because it's there doesn't mean it gets used." Shots fired. 😂

[@malachaiparker6733]

That stab at people who don't use turn signals. God I love engineers

[@Bahaa425]

i love being the 1 bmw driver that knows what the turn signals are used for.

[@_que]

make that 2 please , but only 1 blink and change over. always looking for gaps

[@coldblue32E]

Make that 3 lol

[@Hi11is]

Knowing and doing are two very different things.

[@mcintosh.motors]

@@_quealways the tap turn signal for me for the 3 blinks ; it’s the only thing these damn NPC’s understand

[@TheArccore]

Only BMW noobs use the turn signals.

[@BBKing1977]

Time to change the channel name to "Throwing Shade Explained". That was a long walk for a great jab!

[@gearhead366]

Cool! I didn't realize that this engine ever got developed. I remember a few years ago when it was proposed, then I heard nothing else. Not a big BMW fan, but I really like this idea.

[@antonykuo3809]

Bmw to their engineer team- “If it ain’t broke in 5 years, your doing something wrong”

[@braydendelgado5617]

13 step solution to a problem nobody asked to be fixed

[@_Chev_Chelios]

FYI. Valvetronic is fully 21 years old at this point. In 2001 we had them to drive in consumer-available vehicles. (745i/li)

[@DmitriyKhazansky]

This. Shame it wasn't mentioned in the video that it's not new tech...

[@LB63Brav]

Ant they sucked! Mainly the seals would go and engine chugged oil out the tailpipe

[@marcokrueger3399]

@@LB63Brav Valve shaft seals have been an issue with BMWs but that has nothing to do with Valvetronic, every car has valve shaft seals

[@iancook2921]

Not on the n62 lol

[@VasyaIvanovichPupkin]

Didn't they stop using valvetronic like 10 years ago?

[@MK3SupraSteve]

No throttle needed...just constant money and repairs 😂

[@marcokrueger3399]

Do you have any actual prove that this is unreliable?

[@morganfreeman5171]

wrong

[@SoulTouchMusic93]

@@marcokrueger3399 yes, the badge on the bonnet.

[@marcokrueger3399]

@@SoulTouchMusic93 My question was serious.

[@MattH-wg7ou]

The valve seals are one thing that is notorious for failure in BMWs. For one. Ive heard enough horror stories to avoid them personally. Same with Land Rover products. Its a shame beI love BMWs and Range Rovers. But Id take a Land Cruiser over either any day. But you do you.

[@ottoviitavuori7327]

The Valvetronic system is a BMW variable valve lift system just like VTEC. And yes it eliminates the need for a throttle body in regular use. But its mostly used as an variable valve lift system.

[@Combes_]

BMWs when they hit a pothole and every single over-engineered mechanism breaks:

[@FrozenHaxor]

Guess you never owned one then...

[@Combes_]

​@@FrozenHaxor of course I don't, I don't even have a license

[@RosskoPeeko]

I had this system fail on a friends BMW and it was totally un drivable. Literally had to be towed away and the bill was huge.

[@corumstratton2317]

BMW life for you, biiiiiig bills

[@RosskoPeeko]

@@corumstratton2317 it’s just a pointless system that shouldn’t even exist

[@corumstratton2317]

@@RosskoPeeko among many others haha

[@RosskoPeeko]

@@corumstratton2317 that’s very true lol

[@ryang1589]

BMW= brake my wallet

[@ReftLight]

That short throttle body clip is a 70 mm S2 alpha series throttle body for a d-series vtec and non vtech. While adding airflow, the TB shown in the video also allows the Throttle Position Sensor (commonly seen in autos) to be bypassed. This tells us that the honda is stock manual or it is an automatic - manual conversion. This part only fits a ported intake stock d16y8/d16z6 manifold or an Skunk2 70mm pro series intake manifold. You’re also gonna wanna get the brackets.

[@robertvanderlinden2813]

Diesels also don't have trottle bodies, you just increase the fuel to air ratio

[@Cragified]

Many modern diesels do in fact have throttle bodies. Not because they are needed to control engine RPM but mostly for emissions and helping things like the EGR work more efficiently. There are secondary advantages to having a throttle body as well as it enables engine braking without requiring a third valve set or special cam timing. (Mostly for passenger cars, 'jake' brakes are still more effective for trucks). Another advantage is not needing a vacuum pump accessory to provide a vacuum source, again handy in a passenger car setup.

[@hoppalo1103]

True true, my m57tu2 had one, most probably just to increase the egr flow and help shutting the engine off. It was mapped out when the egr was removed and car mapped, it might still close when shutting off the engine im not sure

[@britbritcritict2512]

"Complex System" that's the key word. Meaning it's gona cost you a kidney to fix

[@NoName-st6zc]

That turn signal hint at the end was so good lmfao

[@Msimms325]

That was a clip of a tesla

[@griffinmackie6880]

One of my detail customer has a 440i convertible and the throttle response is insane, it can detect like the smallest rev of 200 rpm’s

[@billybowbob2071]

The shot at the turn signal is so true! I bought a bmw and seldom use it while driving... no idea why though. Lol.

[@re_loyola]

"Just because it's there, doesn't necessarily mean it's used." *shows turn signal switch*

[@Bankable2790]

Wow it’s almost as if you watched the same video as the rest of us

[@emissarygw2264]

@@Bankable2790 That actually totally went over my head the first time though

[@jasonruch3529]

That's my favorite 😂

[@jimi272]

Hahah, the best part that no one noted is that it’s a Tesla model 3 indicator😂😂😂

[@The-Fin-Factor]

Naw bro, you did them dirty at the end 💀💀

[@jimi272]

Hahah, the best part that no one noted is that it’s a Tesla model 3 indicator😂😂😂

[@tvsnake7841]

Cant wait to work on them in future.

[@Z0neDrift]

Bmw started using valvetronic 20 years ago

[@ibrahimseth8646]

Precision in every angle.

[@jebediahgentry7029]

When that stops working as soon as the warranty runs out.... Good luck

[@haley746]

Rich people trade in their cars for a new one before that. If you have to deal with out of warranty repairs you aren't rich enough for one

[@watersnortmoment3734]

@haley746 Rich people are people that will eventually lose their wealth. The wealthy just buy more reliable/cheaper to work on cars. You can try to dispute that, but the smart ones like Zuckerberg drive economy cars like the Honda Fit.

[@TrojanLube69]

I’m just surprised BMW hasn’t implemented plastic valves and cylinder heads yet.

[@fukhue8226]

Ford made a Plastic 4 cylinder years ago. Metal head, crank, cam and piston tops. The rest was plastic. Must have been another Ford Bad Idea because you never saw any of them in production.

[@jerichostevens2711]

not surprising. US domestic brands are incredibly overpriced junk these days, and that's not hyperbole. I like my cars and bikes JDM these days.@@fukhue8226

[@akshaymuley8800]

"Just because it's there doesn't mean it is used" got me 😂😂😂

[@geniferteal4178]

Interesting to see the design i'd like to understand more of the need and benefit for it.

[@urbancats1]

Exacly how I portray German engineers. Always fixing a problem that don't exist.

[@edism]

Fuel efficiency is a problem all car manufacturers recognise.

[@jacobryan4569]

@@edism it's pretty easy to recognize that problem, get a diesel truck from 2000 or earlier and it's more cost-effective than getting a BMW from 2005 onward

[@jamesmx7]

​@@elemenopi55 do you not think the other ways might have already been tried? If chimp on KZbin can think of it I'm sure BMW has

[@MrWimbomahadi]

There are losts of problem: emmision regulation, fuel efficiency, target performance, etc.. some patent might be a problem too, they maybe can do simpler thing, but others manufscturer already patented it.

[@3.14Racing]

True that pumping loss is not a problem at all and it’s even a myth

[@nemesisc4926]

The shade at the end.....hats off to you sir. You are a gentleman and a scholar.

[@lynxranger9226]

It’s rare to see Pegasus 30s around these days. Love it!

[@benvan2446]

The joke at the end really got me haha

[@guillermoluna1408]

As an ex BMW owner....the turn signal was something we never messed with, waaay too expensive to fix if it broke 😆

[@djmax01]

Ending was brutal 👌

[@bobmotherfuckinsmith3089]

Nice shot at the end Jason, that was a classy burn.

[@icbi_fuzy2181]

The indicator is the most expensive optional extra

[@mooseBanner]

Two observations I've made about Mercedes/BMW owners throughout my time on this Earth: 1) they don't pay the monthly premium for turn signal use 2) they have to park as close as possible, about 40% of them have handicap tags. And for those that don't, the majority will only park within 5 spaces from the front, anymore and I assume they drive around until one opens up

[@CarsSimplified]

Pretty clever stuff, both the BMW design and this video's ending!

[@DrewNorthup]

Quality on the blinker fluid

[@gmans7859]

Shit's Expensive. Dealer Only Item.

[@kip258]

BMW have the most expensive Piston Return Springs out of any manufacturer. Literal nightmares to own.

[@wendellgreenidge3362]

That slick turn signal jab was funny

[@ganymede3141]

The funny part is that the turn-signal stalk at the end is actually from a Tesla Model 3, so I like how Jason is subtly throwing shade at Tesla drivers for not using their turn signals. 😂

[@cutlassrkt]

"We have those, so we don't have to use them" - lost boy on hook

[@ethancntower8850]

I believe in you peter..

[@ThisRandomUsername]

Could you do one on multi-air? It achieves basically the same result with hydraulics only.

[@danieldimitri6133]

No he doesn't seem to want to acknowledge that fiat or fca have technology. He'll cover failure prone mechanical systems that slide camshafts around and only have 2 settings but he wont talk about a system that need very fast logic to adjust the valve closing time during a single stroke of the engine. In fairness the Prius also has a system like this and i think caterpillar developed one, multiair is different only in that it uses a. Early closing instead of a late closing so instead of reversion it vacuums down the mixture which could conceivably be used to cool the engine, or extract latent heat to assist combustion and the early closing system also allow the engine to run as a normal camshaft when there is a failure.

[@ThisRandomUsername]

@@danieldimitri6133 The vacuum thing didn't occur to me before, and it's a good point. Perhaps it also helps actually vaporise the fuel, but I believe modern engines are already very good at that. Are you talking about the Prius' Atkinson cycle engine? That is a great use of that cycle because there's electric assist to make up for the power loss.

[@bryanmasis1595]

It sucks, let the car sit for some time and all of a sudden no compression, annoying to recharge

[@ThisRandomUsername]

@@bryanmasis1595 Lol. That's an interesting problem that does seem a bit annoying to fix. Oddly it seems like it affects some people and not others. My cousin never had that issue with hers, but never really let the car stand for too long.

[@FBOG37]

Fun fact: Not just BMWs plenty of other car manufacturers also use this same concept. For example the 3.7 VHR V6 and other motors found in a lot of Nissan and Infiniti cars have this. It is called VVEL. Short for Variable Valve Event and Lift. The more you know 👍👍

[@kalangototal]

Thanks, BMW is definitely out from my list

[@SavageBunny1]

ValveTronic was available since 2001, not the best, but with the N52, it was normalized, I've never heard of a BMW have an issue with it, even high 400k+ miles on it.

[@bryanmasis1595]

Bro, valvetronic actuators go out ALLL the time 😂😂

[@GoFastGator]

N55s have have quite a few failures around the actuator and the eccentric shaft gear sector.

[@BoQ7NiiZz]

@@GoFastGatoryeah had to replace mine at my 535i but it was not really that hard

[@GoFastGator]

@@BoQ7NiiZz not hard, just expensive! 😝

[@SavageBunny1]

@@bryanmasis1595 Never seen one go out, My wife's E90 had almost 300k miles and was still on the original one.

[@elimcbuggz]

Jumpcuts to blinker scene... "Just because it's there does not mean it's necessarily gonna be used"😂😂😂😂

[@robelbelay4065]

Love that turn signal dig at the end😂

[@franktaylor7617]

I like the idea of making it extremely complicated so when it fails. It cost a fortune to repair. I love throwing money down a toilet in a public bathroom. Feels sooo good. 🤨

[@jadesoda5305]

This car isnt made for bums bro😂 its for people that can afford to actually maintain their car💀

[@franktaylor7617]

@@jadesoda5305 They're made for women. They don't work on their own cars either. They foolishly pay others.

[@Awesomeman1987]

Unexpectedly the valvetronic system is extremely reliable. It first was introduced in the late 2000's and I seldom see cars with valvetronic issues even 15 years later. Such a well engineered system that nobody talks about or understands. Infinite vtec

[@hi-iq7zd]

@@jadesoda5305 also made to make tons of money off dumbasses who obsess over a bmw and will defend them no matter what(you).

[@tinytattoomike7943]

BMW = big money waster

[@54mgtf22]

How to make something simple, unnecessarily complicated. Love your work 👍

[@richardevans3951]

This one goes out to anyone who’s had to fix worm gears! 😂

[@derunfassbarebielecki]

BMW is a company known for innovation. Things might look unnecessary complicated for someone who doesn't appreciate this work, but BMW still sells better than most American brands which are known for using simple and decades old technology.

[@melody3741]

I really like this because they get the advantages of freevalve with the reliability of cams since it still runs on the cams even if an actuator fails and you won’t be stuck…

[@BabyBugBug]

And when that breaks, it will cost half your house to fix. 😂

[@steifan]

Valvetronic has been around for around 20 years now ^^

[@150flyer4]

Corliss variable valves were developed 170 years ago.

[@antoniohinojos3808]

VANOS 😬

[@steifan]

@@antoniohinojos3808 not the same

[@antoniohinojos3808]

@@steifan yep, you’re right.

[@thatguyfromthatthingthattime]

I love this video for the tech stuff, but being a former Boston truck driver, that blinker thing at the end got me good, lol

[@therealjammit]

I was about to make the joke "and BMW doesn't need blinkers" but you beat me to it.

[@mickeygaines302]

Very good point because people rarely use their turn signals..😮

[@s2kap01]

It can’t be “theoretically limitless” when there’s a specific number of teeth the worm gear can adjust through. That’s a defined limitation

[@EtherFox]

I agree with you fundamentally, but as an engineer, the infinite variability is in reference to the infinite sub-positions between closed (0) and open (1). There is .5, but also .51, and .501, and .5001. Is it actually true in a pragmatic sense? No. But it sounds grandiose.

[@Mountain-Man-3000]

Love that subtle turn signal joke. 😂

[@TakeNoShift]

Subtle?

[@twisted_panties]

So simple, what could possibly go wrong.

[@vossti]

The engineers were challenged to find a simple part of the engine that hadn't been over complicated yet...aah yes the throttle valve! Come here you!!😂

[@randallsmerna384]

More components means more things to go wrong...