DSG Transmission - Explained

[@hobbesip1]

This is probably one of the best demonstrations of a VW DSG transmission I've seen yet on KZbin.

[@Jay-yd5cr]

Hurts my brain trying to understand is wizardry, the designers of this are incredible

[@pnewm10]

They are called engineers. If you like the idea, look into "machine design" in engineering, and engineering school is awesome :)

[@rafaelrp07]

There's a video explanation of ZF 8HP on WeberAuto channel. Check it out

[@allanj7750]

Honestly I think I picked up a good portion of this surprisingly. Whenever people tried to explain how a manual trans works to me when I was younger, trying to learn stick, they honestly just confused me so much more than if they told me how to use the clutch and not explain how the transmission is actually working. However if I watched this video it would’ve made much more sense now.

[@n7195]

same here bruhhh xD xD

[@fredakml2459]

The cost to maintain one also incredible

[@HumbleMechanic]

Thanks for having me on the video and hanging out at the garage. :)

[@EngineeringExplained]

Always a pleasure dealing with the elderly.

[@HumbleMechanic]

Engineering Explained what's that sonny....

[@RichCorbett]

Excellent "explainer" video guys. Thx.

[@sirgriffinman]

HumbleMechanic Would you ever do a video discussing the effects and pros cons of a dsg tune??

[@fulloffools6942]

I see a lot of CO brewery stickers on the toolbox. Are you here in the state?

[@LiamGoodrick]

I had a a vague idea how the double clutch in a DSG worked but had no idea it was a shaft inside a shaft. Awesome video. Now that I understand exactly how it works I can see why my DSG shifts slightly slower in unpredictable situations.

[@sw21mr295]

The DSG is an amazing transmission. It’s one of the main reasons I bought a MKV GTI - I was so impressed by the technology. I enjoy driving manuals, but I think the DSG is fun to drive and it benefits from improved performance, fuel economy, and convenience over a traditional manual. VW is also continually improving it; I drove a 2013 GTI and the DSG was even smoother and more refined than my ‘08. Thanks for showing us the inner workings of the DSG!

[@bampeurvan3543]

ferme ta gueule

[@ewanduplessis9682]

How reliable was it?

[@bryansmith1920]

I'm a retired ex mechanic who spent the last 15 years of my life as a mechanic Repairing/Reconditioning Vehicle Transmissions It was fantastic to watch this video As it supplied so many Flashbacks But also Looksees into what's happened since I left the job THANK YOU

[@JonOlaivar]

Now we need triple clutch transmissions that preselect one higher gear and one lower.

[@zeroangelmk1]

What about a penta clutch engine where every gear has its own clutch

[@alexk.5441]

zeroangelmk1 What about a car with one engine for every gear

[@EpicB]

Honda apparently built a prototype 11 speed triple clutch gearbox. Though they've only put a 9 speed DCT and a conventional 10 speed auto into production.

[@euphoricmando]

Alex K. Lmao that would be wild!

[@bennetteberle4476]

@@zeroangelmk1That's already been done, it's called an "automatic transmission".

[@jasonshortphd]

I am amazed at how well you explained that! I have always had a vague explanation from others, and as an engineer it always bugged me. Great explanation, and having one to SHOW was amazing.

[@oldmech619]

Hat off to the engineers that designed them and the mechanics that understand them.

[@bmo3778]

and the people who drive them. hat's off, and passed to them, coz they're driving. I'm just chilling in the back seat

[@emilyw3192]

Can I just say a massive thank you for helping me out with my college transmissions essay. Really couldn't understand it before!

[@IshanKarekar]

As always, a simple and efficient presentation of a comparatively complex engineering solution. Keep up the good work!

[@lukeoxley7548]

I really liked how you half- built a DSG to allow for a very clear and easy to understand visual of how the system works :) This allowed me to help explain how a DCT transmission works and why he was greeted with hesitation

[@chilledboost1982]

Collaboration of HumbleMechanic and EngineeringExplained... Internet Win!!

[@HumbleMechanic]

Jeff R Thank you :)

[@sfield86]

I just got a DSG car (ford fiesta) and have driven a 5-speed manual for many years. I heard a lot of complaints about the dual-clutch being jerky and not good at low speeds, but I've driven this 'new' car like I would have driven a stick, and it's not given me much problems. The clunky sounds it makes always makes me cringe, but this video really helps explain how my transmission is working. I've heard "it's a manual that shifts automatically" but this really gave me insight as to what that actually means. Thanks!

[@MrTennisPaul]

What a video!! I'm a mechanical engineering student and I love your videos, I can practically see what I'm studying and I can really learn the amazing world of automobile step-by-step! This video is not so recent but I've discoverd your channel since few weeks, damn! I will absolutely continue to watch you!

[@mazeclayton]

Hey guys j know this video is old. But I just bought my first dsg car and I have been having problems at traffic lights. I just wanted to say this video helped me understand what I have alot better. Thank you guys for doing this

[@tsstn]

Great collaboration guys. I love it when KZbinrs get together on their own. I know it's not as easy as just recording your regular show. There is so much to tackle. Just know that there are people like me who see deeper than just the surface. (which was nicely polished btw) Thanks for sharing

[@atefelabed8365]

Wow! Amazing. I knew in theory how it works but it's fantastic to see the internal components. Such a complicated piece of engineering. Hat off to the engineers that came up with it.

[@garavonhoiwkenzoiber]

Ah, so it's not actually faster changing gear, as in actuality, the gear is ALREADY changed, and all you're really doing is swapping which clutch you're using! ...Right?

[@EngineeringExplained]

Gara Von Hoiwkenzoiber Correct!

[@starvalkyrie]

The Direct Shyamalan Gearbox.... you were in 3rd the whole time....

[@himzooglecevac9356]

Yeah but you have only 2 clutches,and 6 gears. I think clutches are working when you are changing the gear. As they said its like manual transmission just it works automatically. For example. You have one clutch for speeds 1,3 and 5,and another one for 2,4 and 6. Correct me if I'm wrong.

[@damian02161986]

It actually is changing the gear faster. Because you don’t change a gear until it’s actually engaged.

[@dielaughing73]

@@EngineeringExplained I've seen claims of shifts as fast as 8ms. Any comment on that?

[@wiltd001]

I have an 06 Audi tt with dsg and really like it a lot . I was happy to learn that the C8 Corvette has an 8 speed DSG. I'm a guy who grew up with, and really like the standard transmission , but if you only have one car you drive daily there is a point in your life that you get tired of pushing in the clutch in stop-and-go traffic just to move ahead 20 ft. For me the DSG transmission is the best of both worlds. Sport mode regular mode paddle shift bump shift offers a lot of variety in a lot of fun without wearing out your knee. My brother-in-law had a Mazda Miata that he put 250,000 miles on with a standard transmission. He needed to have his knee replaced. I asked my sister which knew it was, she said his clutch knee.

[@banddude121]

VW's DSG is great to drive. Drove a GTI with one and I fell in love with it.

[@alanbrand7681]

Hear That? Yeh but wait till it breaks....wallet emptier

[@ARentz07]

@@alanbrand7681 Check engine lights are a way of life

[@dragospahontu]

@@alanbrand7681 dsg 6 is unreliable, dsg7 with wet clutch 200,000km oil change at 60k np.

[@alanbrand7681]

Dragos Pahontu seen plenty 7 sp broke as well

[@dragospahontu]

@@alanbrand7681 mechatronic fix is like 2k$ but a total failure is rare and 7k$ for new trans.

[@raw_pc]

This is crazy mechanical marvel. So much knowledge and ingenuity was put into this DSG transmisson.

[@27jezus]

I agree

[@frv6610]

this is einstein-level?

[@snowcrest7863]

Keep up the good work!...Very informative for us "shade-tree mechanics".As a side note: It'll be a dark day when the fully manual (meaning manual, old-school clutch) transmission is no longer available. I suspect those days are not too far away with the dual clutch transmission getting better gas mileage.

[@snowcrest7863]

@@willheheckaslike8315 Note: Electric Vehicles do not/will not have manual transmissions, niether do the current Hybrids. I am aware there are a lot of those vehicles already in Europe. (Full disclosure, I own 5 cars with manual transmissions, and two trucks with automatics. The automatic is superior for trucks)

[@snowcrest7863]

@@willheheckaslike8315 Also, good luck getting a new Ferrari with a manual transmission.

[@combomaster99]

looks like this one had the same problem as my dct box has currently. the synchromesh rings are worn out causing heavy grinding on the thin gears which are needed so the shifter rings can engage upon them. this problem is pretty common for dct transmissions because of the frequent need for oil change (every 60k km) which IS NOT specified by the manufacturer. If the mechanic over sees this and your driving style is on the sporty side the synchromesh rings will start to wear out way before you hit the 200k km. The brain of the gear box does not know if the synchro is worn so it shifts without giving enough time for the gears to line up which is something you can do with a manual box. thanks for the video this is exactly what i needed to see.

[@dopecutza]

Also great vid! I really wanted a detailed but easy to follow explanation of the DSG for the longest time. Thanks!

[@marcuspi999]

Great explanation guys. My wife just got a car with a dual clutch transmission and I wanted her to be cognisant of the proper way to drive the thing and why. The whole thing will certainly be over her head but it will help a lot when I try to explain the computer's anticipated next gear and how she should think about driving correctly.

[@vighneshramesh2569]

Thank for this amazing video. I love the way you explained the transmission with an actual unit.

[@iam2loki4u]

The absolute best explanation and "class" I've ever seen on any component of a vehicles drive train... Thanks for putting this together for us folks who like to know this kind of stuff

[@rbjoseph25]

Very interesting. I like it. But you'll never change my mind on a conventional manual transmission. I just love the feel of a clutch pedal under my left foot and a shift knob in my right hand. "If it feels good do it!!"

[@EngineeringExplained]

Joseph Inman I don't think you'll hear any resistance from Charles or myself. We both love our manuals.

[@LiamGoodrick]

Engineering Explained Definitely can't beat a clutch pedal and a manual gearbox.

[@drcoolautofix]

*You are absolutely right Mr Charls, DSG shift way faster with* with quicker response than AT system.

[@Wanderlauch]

it's a Doppelkupplungsgetriebe. You are welcome.

[@bakaenkaaka]

Well DSG is in German Direktschaltgetriebe, but yes, it is a doppelkupplungsgetriebe also ^^

[@bakaenkaaka]

Nicktrance1 Correct :)

[@claudiocatarino4909]

+Max Power D-o-p-p-e-l-k-u-p-p-l-u-n-g-s-g-e-t-r-i-e-b-e

[@nicola6323]

Which is why the clutches are called K1 and K2, probably: K for Kupplung, German for clutch.

[@JAD6800699]

both are the same!

[@robslaney3729]

I used to have a Mark5 Golf GTI. Occassionally it would take 1-2 seconds to engage after putting my foot down after creeping forwards waiting to turn at lights. I think you nailed the explaination in that the conntrol unit was confused and expecting to down shift. The dealership had absolutely no idea! Also in sports mode the downshift from 3rd to 2nd was very harsh as it changed as a much higher RPM. Now drive a Renault Clio RS, which I think has a similar assembly

[@cencalmatt]

Great and fascinating stuff, guys. I've been wondering what the inside of my DSG looks like. My commuter is a 2014 Jetta TDI named Loretta and I couldn't be happier with her so far. However, every so often I do manage to somehow confuse the gearbox slightly and I get that pause in action that was mentioned. No biggie, though. I'll gladly take my 47 mpg highway and the awesome factory Fender sound system (actually Panasonic) and rock out.

[@laszu7137]

5 L/100km on the highway is not even good for a diesel car.

[@danr8194]

@@laszu7137 most fixed TDIs get that now. Mine used to get 4.3l per 100, now it's about 5l per 100km

[@RegionalRadioShackManager]

@@laszu7137 that’s awesome idk what you’re talking about

[@donaldmurray6077]

This video stands the test of time. It is the best account of DSG on the web.

[@caza00caza]

Started learning about transmission systems today in college. This was useful

[@Trashmane_]

Recently got a 17 GLI with dsg and really love it despite it being the first auto I've ever owned. Seeing how it all actually works really makes me love this car even more

[@chinmonkie960]

I really enjoyed this video, it has two of my favorite youtube hosts (Y)

[@EngineeringExplained]

Appreciate it! Charles is a rad man.

[@rubberduky1829]

+Engineering Explained ---Ok so I get DSG, I have a 2014 gti drivers edition and..... what causes DSG farts. I had my resonator deleted today, basically so I could just have a deeper sound, and it does sound really nice, but can now hear the farts more. thanks

[@gabojm]

As has long been explained by lot of people, that is how it works, there are very funny videos on youtube about DSG and farting minions, check them out, and deal with it.

[@mbulelomankonkwana8038]

What is the actual cause of the dsg fart?

[@ARentz07]

@@mbulelomankonkwana8038 First, the ECU cuts timing during the shift, but fuel delivery continues for a brief moment. So, some unburnt fuel makes it into the exhaust, which is hot. So the fuel gets ignited, making the sound. The reason for the timing being cut is to prevent the engine from revving while the shift is occurring.

[@cambellajoe]

The best DSG transmission video I have seen, puts everything into perspective

[@jeremyyeo6591]

Thank you Engineering Explained I appreciate the video you had made earlier with the dual clutch And now a better understanding video.I am only 16 and i know almost everything about how car works Because of you. Its so much better than watching illegal car races Salute to you Jason from Engineering Explained and Charles !!!!!

[@EngineeringExplained]

Jeremy Yeo Very welcome, glad you enjoy the videos!

[@HumbleMechanic]

Jeremy Yeo Thanks man!!!!

[@plavix2215]

thanks for disassembling the transmission. Always wanted to know how the hollow shaft looks like. This shaft has to take a lot of force. Is it extra treated ? Better hardening process, another steel, or so?

[@ericanderson4801]

I love mine. Works like a charm. 45K miles so far. I've heard bad things about the ones from other manufacturers, but VWAG seems to have it right. Do NOT skimp on maintenance. Change the fluid at the recommended intervals. And drive it like a stick. Don't just pound the pedal like you have a slushbox.

[@abdulrahmanali7330]

This is genius, I always wonder how did they invent such great mechanical parts!

[@davidsoto7114]

They are Germans lol. The epitome of knowledge of engineering, match etcc. Look at Albert Einstein

[@ALIENdrifter66]

Complex is the opposite of great engineering design

[@FDALl-ms5kg]

​@@ALIENdrifter66 How exactly is complexity bad? If its convoluted sure. And engine is very complex, dont suppose youd call the genius who came up with them a bad engineer would you?

[@ALIENdrifter66]

@@FDALl-ms5kg An engine is very simple. Have you seen a 2 stroke engine?. A 4 stroke engine can be made very simple too, if you look at 1920s engines they had very few components and complications. Modern engines are complex because they trade simplicity for efficiency. The higher efficiency you have, the harder it is to gain more efficiency, designs start to be cumbersone and many extra decisions have to be made to gain 0.X%. In engineering, when you want to calculate reliability you apply the formula R = e-λt. When you have multiple systems that need to work together, then you have Rs = R1xR2. In a DCT gearbox, the number of Ri(s) you have to multiply is very high. If there was no other physical solution to the problem, then it would be considered a complex but good or clever design, but because there are simpler alternatives that have less components, are more reliable, simpler to build and repair and have the same or more efficiency, the DCT can no longer be considered a complex but good solution, it's just a complex solution.

[@twwtb]

This is a very good explanation. I just bought a 2014 Jetta TDI with this transmission. It takes a bit of practice to drive it smoothly, but it does work.

[@dleivam]

Thanks for the video... My car have a DSG7 and it s great, so great I barely miss my old manual impreza

[@OrangeFiero]

Great video! I am an engineer working on the GTR gr6 transmission and you explained how the dsg works very well.

[@EngineeringExplained]

Awesome! Let me know if you or Nissan would be interested in making a video on it! Cheers.

[@OrangeFiero]

Engineering Explained I work for a private transmission company that is not associated with Nissan, but we almost exclusively work on/build the gr6. Unfortunately most of it is confidential but I will surely see if the logistics of doing a video with you are feasible!

[@EngineeringExplained]

Jacob Shields OrangeFiero Sounds good to me! You'll find a business e-mail on my "About" page of YT. Thanks!

[@HumbleMechanic]

Jacob Shields OrangeFiero COOL!!!

[@j.s.3414]

Love the DSG in my S3...so smooth and quick, yet had some of the same quirkyness of a manual (bite on initial pull off).

[@fernandogarcia3985]

Joe Joe love mine too in S3 2016

[@mikemurko]

thanks guys! was experiencing that "jerky" behavior every now and then and this provided a great explanation for what's going on in the engine when that happens.

[@RadzLee]

VW cars are notoriously famous for their DSG (dry clutch variant) & mechatronic problems in Asian countries, especially if the vehicle was heavily used in hot weather, traffic congestions & start-stop traffic (yes, our traffic jams are horrible). It has been circulating around that the dual clutch transmission is very jerky in start stop traffic & indecisive in choosing the right gear in those circumstances. as a result, DSG tend to kaput after 6 months of usage & unfortunately it is time consuming (waiting for the parts) & cost a bomb to repair. & the problems persists not long after that. Ford's powershift (also dual clutch) is sharing the same fate too...

[@brioown]

Mohd. Radzli Rahman I have been using a DSG Polo GT for more than a year now!!!!!!! Fantastic is all I can say!!!

[@brioown]

And yes, it is being used in India in extreme hot weather of North India too! No problems felt!

[@Newbieakanoob]

@@brioown i have a 2011 golf tsi. It suffers the clutch slip and it can't engage in any gears

[@valerkand9270]

Used to work at a cab company in London, VW DSGs were good to about 150k miles and the powershifts on Ford Galaxies were about 110k

[@k3v1nkok]

Perhaps what they should make is a triple clutch system lol

[@popeyjocy]

I have never in my life seen a more beautifully explained video thanks guys

[@SlimNateKC]

My girlfriend walked in and said “oh look it’s the Rhett and Link of cars” and I died lmao. You guys make a great team haha

[@The_Hi_Life]

This is some serious sorcery! Who comes up with such beautiful madness???

[@kastapostgard5306]

CDon02 Germans. Always Germans.

[@bedwarri0r333]

Great video! You guys seemed to flow well with each other. Very clearly explained. I got the gist of it. Thanks again.

[@jollebecrafts3602]

Excellent explanation thank you, i own a VW with a DSG gearbox and i have to say that if driving normally there is no noticeable delays. It is such a smart system literally and other manufacturers have given this system a bad name due to poor control over the shifting. VW get a lot of mud thrown at them, due to prejudice and ignorance. Drive one and you will see what i mean.

[@whatsforsupa]

I like my DSG in my GTI. I have an engine and DSG tune and it's even better than stock. I miss driving manual, but the DSG is a great all around performer.

[@trx_gaming6442]

What so you4 dsg transmission is automatic

[@Bobsteroid]

Nice job tag-teaming and explaining the DSG. As one with auto and manual trans experience in a previous life, everthing made perfect sense! :D I WAS disappointed not to see a duet from you two as an encore! ;-)

[@boostedbuiltgarage]

Nice video, been wondering how these worked actually inside the box. I'd really like to know the reliability of these boxes and clutches and what kind of mileage you'd expect compared to normal manual dry clutch setup? As I can only imagine the $$$ to fix/replace

[@HighGear7445]

Wife's TDI as well as Son's TDI both have DSG's. About the only thing I can say bad about them is don't creep in heavy traffic. Otherwise they are great and shift lightening fast.

[@MatkatMusic]

Could you explain the engineering decision to use gears that have angled teeth vs gears that have perpendicular teeth (similar to lego gears, for lack of a better visual example)

[@EngineeringExplained]

+Matkat Music helical gears are significantly quieter, thus far more common (but more expensive). Straight cut gears are cost effective, but very loud, so typically only used in motorsport, or for reverse gears.

[@MatkatMusic]

Very cool. We need a video showing how the valve bodies for Automatic Transmissions work. I don't think your channel does animation videos tho...

[@johnhosac3114]

Ever watch world rally racing? That is what straight cut gears sound like.

[@DillyGee]

yes straight cut gears have a distinct whining sound... almost like a supercharger if you will. you can really hear them in a Honda while they are in reverse

[@Jthumper]

True, WRC are mostly strait cut- and sure adds awesomeness to in car audio :)

[@VSB-media]

Thnx for explaining now I understand why my VW CC did what it did when I was accelerating and overtaking a car and thought the car was going to change the line in front of me so I let of the gas but the car in front didnt change the lane so I hit the gas again and experienced a delay while the rpm droped and then rised again and I got the power and acceleration again. I just bought the CC before that I had a Mercedes B class and thougt that the transmisson in it was flowing smoother but I guess I just need to get used to DSG :)

[@SonOfTheDawn515]

The DSG, in my experience, is pretty good. Then again, I've only ever owned VWs in manual and DSG. But I know what you're talking about. My MK6 Jetta 2.5 SE would do that sometimes but I generally would shift into sport mode when overtaking slower traffic and didn't notice it. Think it has to do with RPMs, safety mechanisms and getting the most efficient power. Just my guess.

[@clover7359]

It's even more interesting than I thought it was.

[@WOOF95]

Fantastic review. I've been considering getting a '24 Tiguan, but I've heard and seen so many YT videos that talk about the problems with DCTs that I'm really hesitant about buying a car with one in it. This gives me much more confidence in them. Thanks. Happy Holidays and Happy New Year!

[@the2120company]

humor and engineering both combined. great video. thanks guys

[@HumbleMechanic]

Thanks :)

[@the2120company]

HumbleMechanic you very welcome, nice presentation,

[@pushparajsahoopushparajsah2039]

Piotr Niewinski Fggfdd

[@pushparajsahoopushparajsah2039]

Piotr Niewinski sexxi

[@2K_Unlimited]

Great explanation all around. A more common preselection error would be gently accelerating to close the gap on a 2 lane road before reaching a passing zone. All indications to the computer are that the next higher gear will soon be more efficient at a higher speed. When you reach the passing zone, if traffic is clear, you step on the gas to use more power and shorten your passing time, best done in a lower gear. Also, I question the location of the gears as stated, you might check those. If 5th and 6th are run from the same shaft, there's no physical possibility of preselecting 6th. Honda claims on their DCT all even gears are separate from all odd gears to achieve the same effect. I have not looked at the DSG, but in an attempt to achieve the same task, it just doesn't make sense for any consecutive gears to use the same power shaft. Well, we hope there's a stop before reverse anyway, but not the others.

[@Nickersont88]

Love it when you guys collaborate on these explainers! When I bought my mk6 GTI I drove the dsg and manual back to back to decide which I liked more. Though the DSG felt like the future, was faster, better suited to fwd and could handle more power out of the box I still opted for manual (the bitchy manual of the gti nonetheless). I only regret my decision a little bit.

[@HumbleMechanic]

Trevor Nickerson thanks I do too. :)

[@Steviee8]

I wish I could have my extended warranty company watch this video and understand that a clutch or dual clutch isn't a normal wear and tear item like a traditional clutch. My DSG had some weird bucking issues off of a dead stop and just simply letting my foot off the brake. You'd think the car would inch forward smoothly but it feels like the a slight bucking until you actually give it some throttle. (Honestly I'm not sure if it's a clutch thing or it would go away with a fluid change. Thanks for the videos. Always love both of you guys channels Anyways they won't cover the issues and it's on me to get new clutches. +$2k

[@custommotor]

So basically its a manual transmission using an automatic transmissions clutch packs and pistons. With the combination it might last longer then both wear wise because you don't have to worry about all the clutch packs a normal automatic has or the clutch going out like a manual. Since it's all computer controlled, as long as the electronics hold up, it should have over 100,000 miles of life or 200,000+ maybe.

[@ankhenaten2]

Just don't bottom wash your car

[@oldleatherhandsfriends4053]

you would think.....

[@eponymous7910]

Hahahahahahahahahaha longer life than a manual

[@usmclugo85]

2013 MK6 GLI with DSG fell in love on the test drive

[@austinhuerta4983]

You should do a video on the fabled CVT transmission. Loved the video btw!

[@AbduulG]

Thank you for making such a great video. I was always wondering why my DSG transmission sometimes jerks especially when I’m down shifting from 3 to 1. Also the example you mentioned were with the red light and suddenly becomes yellow and green where it actually doesn’t want you to move as you actually wanted to, I thought that was actually a transmission failure in my car but apparently it isn’t so thank you very much for the video.

[@dragospahontu]

Probably need to change the clutches or recalibrate them to extend the lifetime a bit.

[@nikhilkash92]

Superb, Simple explanations. Wonder why all technical videos could be this much simpler.

[@bigbill74scots]

Outstanding guys, I actually understood that. I have the S-Tronic box in my audi a5 3.0tdi quattro and its a fantastic piece of engineering, such a joy to drive.

[@rykalskyes8888]

Finally I get it . I've seen other explanations but now I get it

[@joonyaboy]

1st transmission video that I actually understood. It's finally setting in. Now just a bit more studying the differentials.

[@thejohnson9204]

Damn, when you see the parts and complexity, it gives me an appreciation of the cost to work on these. I wont feel so bad when my wifes clutch blows out!!!

[@gerald8573]

Finally I know why it would sometimes take a second or two to get into gear! Thank you!

[@nsbhagwat]

When gear lever is moved to the park mode, what actions happen inside the box? Does it lock the output shaft?

[@PeterB12345]

There's a gear on the output shaft and the transmission sticks a pawl (piece of metal) in it.

[@notmenotme614]

Little gearbox fairies come out the woodwork to throw a small anchor. When you select D, the fairies go back in their box.

[@rubbereentjuh]

Cool now I know how the DSG in my car looks like :) Assuming my GOLF with DSG is similar. I love it, under most conditions, you won't even notice gear changes.

[@dielaughing73]

It probably is the same. VW have only made made a few versions of this gearbox, each of which has been put into a wide range of cars.

[@astonfan188]

loving this guys beard.

[@HumbleMechanic]

astonfan188 awe, thanks :)

[@astonfan188]

HumbleMechanic Thanks for making this video, I'm doing a college essay on the Volkswagen DSG gearbox and I found this video explained to me how it works :)

[@ivorton23]

wow I never seen a dsg taken apart before...its seems simple yet complicated...I had to watch a few time to understand everything...thanks for the video

[@metaomicron72]

Charles is awesome! Jason I liked this duo explanation! Great work! =)

[@speedrcer1]

Best explanation of a DSG I have ever seen. Thanks!

[@ranavarro92]

can you explain the Koenigsegg direct drive transmission?

[@EngineeringExplained]

+ranavarro92 kzbin.info/www/bejne/pJK1imaho9Z5j7c

[@lluisfargaslopez3925]

Finally, after a couple of years since having seen this video my mechanisms professor has told me to see this video in order to understand dsg's.

[@AnarchistMetalhead]

would a triple clutch fix the problem of which gear to preselect? you"d have 1, 4, (7); 2, 5, (8); 3, 6 so no matter which gear you are in, it can preselect both gears next to it

[@marko3254]

AnarchistMetalhead Yes,that’s why honda is building it

[@dielaughing73]

Wouldn't you need three shafts then? Can't select two different ration gears on the same shaft. Well, you could, but you'd regret it.

[@mikesrandomvideos]

great video I think the DSG if fluid kept clean can be one of the best auto transmissions on the market today.

[@piwypd0]

you should mak e video of DSG vs CVT , or maybe you have already done and I havent found it yet

[@nelizmastr]

CVT = Crap Vehicle Transmission. DSG = Dank Semi-usable Gearbox. There ya go.

[@nelizmastr]

Marek Sumguy Still better than any transmission ever to come from The Retarded States of Obesity. :P

[@abdelghanitahani704]

nelizmastr

[@tutunmayan]

Completely different technologies but I can say that CVT is usualy more responsive and more fun in the traffic. On the other hand DSG is more fuel efficient

[@Cheeseypoofs85]

lol. what? both of your statements are completely backward

[@rent2ownnz]

nicely done guys great explanation. Scania and other truck manufacturers prooved this technology back in early 2000's and it takes a while for the costs to come down enough so the price sensitive consumers in the car market will pay for it. then it takes off and it gets mass produced. It is the same for most of the tech we see in cars today.... Common Rail Injection systems? Cummins PT system in 1954. MVT and Vtec ... Cummins again in the early 60's U used to work on all of that gear in the early 90's and it was great to finally see them all appear in the market place from 2,000 on!

[@stevieklaer9347]

Can you explain why there is a distinct fart/burp when shifting with these transmissions?

[@sw96]

My guess would be the engine control unit changing the engine rpm to match the wheel speed for the new gear. I believe that often they use the ignition timing to cause the engine speed change (when shifting up gears) and that will give you an 'odd' exhaust note during the change.

[@timothycoleman8916]

Thanks for the awesome info. I am considering buying a wrecked 2011 Volkswagen Jetta TDI and I am trying to learn all I can. The car is an easy rebuild, but friends at a foreign auto shop said beware of the DSG Trans. I personally think it is a brilliant design, but only if totally durable.

[@MacTechG4]

From what I understand, the early DSG models (DQ250 6 speed wet clutch) from 2006-2010 had issues with the Mechatronics unit (brain), but that was fixed, anything from 2011 onwards has the improved mechatronics unit, a traditional manual with a clutch pedal will still be simpler, more robust, more reliable and more fun, but the current 6 speed DQ250 is relatively solid The 7 speed dry clutch DQ200, OTOH, still has issues and it really doesn’t respond well to low speed creeping in traffic, the DQ250 is a little more robust, but also isn’t a fan of creeping. Basically, you need to drive the DSG like a traditional manual transmission, don’t creep in traffic and it should be okay

[@Obi-WanKannabis]

Charles has one epic beard

[@HumbleMechanic]

MrTURBOJOHN Thanks :)

[@Obi-WanKannabis]

HumbleMechanic didn't expect you actually replying. You did a great job in this video.

[@HumbleMechanic]

:)

[@AamirZ]

I think the last part mentioned is true for most standard auto transmissions. Changing speed quickly from down to up confuses the transmission ECU so it tends to jerk when changing gear.

[@EscondidoGermanAuto]

Good Job Guys, I had my trainee's subscribe to your page to help them grasp some of these topics. I think I meet Jason at SEMA in 2013 with a N54 crazy looking Twin turbo setup. Hows everything going?

[@EngineeringExplained]

Escondido German Auto Thanks for sharing the videos. I've never been to SEMA, though I'd love to!

[@TechyMedic28]

I love the mechanic/engineer undertones of these videos.

[@Unb3arablePain]

S-Tronic is love. S-Tronic is life.

[@sylak2112]

Really interesting. I think those transmission are awesome piece of engineering, and they are manual transmission with robotized clutch, not automatic. But still they feel like automatic in a sens. I want a clutch pedal and a shifter! I don't care about them being faster, they are less fun, well to me. Thank for another great video.

[@Spawn223311]

what are your opinions on dual clutch transmissions? are they good/reliable?

[@winemeer7383]

Spawn223311 Transverse 6 speeds (wet clutch) are very good. Some early versions had problems with their mechatronic units, though they have been adressed and fixed. They are very strong boxes and this have been proved from the tuning scene. Stock clutches can handle huge amounts of torque if the box has been remaped. Gears are also pretty good for a 350nm rated gearbox. They can handle almost 750-800nm before giving up. Keep in mind though that they need to be serviced every 40k miles (fluids and filter) and this is really important for gearbox life. Later 7 speeds (dry clutch) are not so reliable.( Im not talking about ttrs/rs3 dq500 units, those are 7spd wet clutch and really good) They have some issues with their clutch packs and their mechatronic units (completely different from 6spd) seem to fail often. I really hope that vw has adressed the issues.

[@winemeer7383]

Keep in mind that im talking about transverse versions. I dont know about longitudinal found in audis

[@alanmartinez488]

they suck

[@Freshbott2]

You guys mentioned how the computer sometimes wrongly predicts the next shift, but as far as I'm aware, and correct me if I'm wrong, this isn't an issue on new DSGs because they don't need to predict downshifts; If the driver tugs on the downshift paddle or suddenly brakes, the computer is able to simply disengage the clutch and deselect the higher gear, 'blip' the engine to exactly the right revs to smoothly select the lower gear, or any lower gear for that matter and then engage the correct clutch. In doing this, it can shift *fast enough*, that it's still much faster than a manual or ordinary slushbox can shift, almost as fast as it can upshift.

[@Irishluckily]

What you're saying is what I've been noticing. The only time it downshifts on it's own like that is when you are driving in a lower gear's speed range for a few seconds thus giving you a better ratio

[@progmanmike]

+Bannicus This guy gets it

[@bobxdark370]

Quick question. When in "D", and I am stopped at the traffic light. I assume the wet clutch is constantly in friction, right ? So it is better to select "N" for longer stops than say 10 seconds ? Or do these clutches fully disconnect when I am stopped but still in "D" ? Or does that depend on the model of car we are driving ?

[@SilverZ233]

I would assume so, only because it's recommended not to inch forward in a DCT doing so causes unnecessary clutch wear, generally that's caused by engaging or disengaging too slowly or too often which makes me think that the clutch is not engaged at a stop. Also i think the type of clutch used in a DCT does not allow for slip while in gear so if it didn't shift into neutral at a stop it would stall.

[@Silberschleier]

afaik it depends on the brake pressure you apply. If you press the pedal firmly the DCT should go into neutral.

[@unbelievabubbledave]

Very good question and something I have always wondered. I've been driving with a DSG for about three years now and always stop at the lights in D and hold it on the brake. I've assumed the car is intelligent enough to work it out (demonstrated by the mind-boggling level of engineering in this video).

[@Ronald.Golleher]

He does explain this in another video, 5 Things to Never Do in a Dual Clutch Transmission or something like that. If you're fully stopped, the clutches will disengage from the engine so they and the transmission are not rotating at all.

[@MrBurakOzel]

every non-manuel cars disconnect the clutch(es) while you are breaking. only not if you squeez the break pedal too little just to slow down the movement of car.

[@dusananelic8595]

I really dont know who can put any mean comment, you guys just rock! Keep it up!

[@andreas.abrahamsson]

Question: I thought you said that the main purpose of a dual clutch transmission is to separate odd and even gears for speed, but in this video you state that the output shaft #1 had the gears 1, 2, 3, and 4. The other shaft handles the rest of the gears. And one clutch is connected to one shaft, which means that the purpose of this DGS is just wrong. What am I missing? :)

[@ethelmini]

That's actually 2 shafts, one above the other, just like in the whiteboard video. 1 & 3 on the top shaft, 2 & 4 on the bottom. They didn't explain how 5 & 6 work on an extra shaft, I can only assume at least one of the first four gears acts as an idler??? Anyway, all those (big) cogs look like loads of rotating mass, you'd barely need to engage a clutch to keep feeding torque to the wheels!

[@federicobarbieri]

as I understand it, the shafts that separete the odd and even gears are the input shafts (the concentric ones), not the output.

[@benoitbricet8885]

My brother told me about the encounter with the engineer that initially had the idea of the first dsg. He described me a truly genius person that was passionned by mechanics and quite socially awkward. A little bit like a mechanic -crazy Sheldon Cooper.