I still continue to be highly impressed with your knowledge on cars. You're like a neurosurgeon working on cars. UNBELIEVABLE. Like a walking encyclopedia. Good for you!
As a junior (thermal/aero) enginner in the automotive, I consider these videos pure GOLD! You would not believe how much stuff we learn in school, and even on the job, but especially now with electric vehicles everyone specialises on just a tiny parts/systems of the car. Seeing this stuff is so interesting, and it allows through your eyes and experience to have the general view of all the systems! Plus now, a lot of these mechanical parts will be gone with EV, so I try to learn what I can before they disappear completely! Thank you!
Great vid, as usual. Those clutch pads are in mint condition given the fact that the vehicle drove over 300 kkm. Looks to me like a great piece of engineering.
@@dehypnotizer I've got a manual v dub. This DSG tranny cost over $300 to service. The manual was $50. Though some things are engineered well, others like the plastic water pump.....not so much. I've got a Japanese car for EVERYTIME something breaks on my v dub.
@@dehypnotizer Nothing failed in my tranny. It's a six speed manual, BULLETPROOF. What I was saying was the service for the transmissions were vastly different. The DSG first service 300$, my manual $50. I have a 2013 Volkswagen CC. So far I've had to change the water pump, the fuel control module on top of the fuel pump, rewire the wires connected to the trunk lid because they crease and cause the car to become possessed when the wires touch. I'm not even joking, my girl put it in reverse one morning and the trunk popped. I go up in there and pull the wiring harness out and they're all frayed to shit. There's been a few other incidents with this car, all the while my 2006 G35 remains running, without an issue. My buddy is a mechanic and sent me a pic of a new Dodge Ram tranny filter change. The entire pan of the tranny.......PLASTIC! With the filter BUILT IN. This shits not gonna get better. Hold on to anything between 2001-2009. The best years for cars and bike IMO
Literally blown away. The machining to make it all work is only matched by your explanation. Thanks for all the effort to teach me why bicycles still have a place in this world (maybe horses too). Your #1. Still do not understand how you can sit cross legged based on the Mrs. cooking. You two are real stars of youtube!
Absolutely love your videos very educational and hilarious I appreciate all you do. Watching your videos is so easy because your not afraid to show your process of figuring it out when others cut that out and try to look like they know it all and don't make mistakes. Keep it up I look forward to all your videos
@@dragonofyorha well to be fair VW cars have been known to have electronic issues and become expensive to maintain once they reach a certain point down the road.
That bit you said about the transmission becoming "confused." This is exactly the problem I have with modern car technology. The transmission itself is fascinating, and in theory, a great idea. But making it so complex that it cannot function, is a bad idea. I can't imagine a Turbo-Hydramatic becoming "confused." Great video, and as always, I love your choice of rags to clean up with.
Yeah unfortunately the nature of DCT's being able to shift quickly relies on alot of computer input. As algorithms get better that should be ironed out.
a late turbo-hydramatic has a whooping count of...4...gears that are wide and torque converter lockup came around in the 90s. If you're fine with the garbage gas mileage, then sure, keep the "unconfuseable" dinosaur which shifts at glacial speeds. If you want a smaller, lighter and substantially more efficient auto gearbox, you need a computer. Or a manual transmission...
While looking very complex amazing it works as seamless as it does. Been driving manual transmission cars for long time but recently purchased a 2022 VW Arteon that has the wet clutch 7 speed DSG. Hope it is as dependable as standard manual transmission. Thanks for posting the interesting and elucidating video!
I will most definitely be referencing this video when I argue with the dealer about how fucked my transmission really is. I got a warranty specifically for my transmission (I’ve had terrible luck with them in the past) and they’re replacing small relatively insignificant parts bit by bit as if shifting isn’t rough throughout all gears. I appreciate you sir
Oh, excellent breakdown. I like the way you explained the gear selections but unfortunately you lost me between gears and splines. Good thing no exams at the end. :-)
Incredible video. The editing was great, explainations were simple, and your snap ring tool made me giddy. I'll always sub to this kind of AAA content.
The complexity of this gearbox is mindboggling. No wonder nobody wants to touch these. I had the un-pleasure of driving a car with single clutch robotic, and if this one shifts as slow as the one I had (the actual movement of the forks, not the clutch engagement), no wonder the internals are that well preserved.
Ah, the dreaded oil pump drive. It broke on my wife's 2008 Passat, a common major failure which VW wouldn't acknowledge. I had bought VWs all my life until that event, but VW just threw us in the ditch, customer loyalty meant nothing, so I now have a nice Volvo. Nice to see the gearbox tear down, makes you realise how much things have moved on since the days of the Morris Minor with no synchro on 1st gear....Thanks for posting, love the high speed explanation of dual clutch transmission, the concentric clutches seems a nice idea.
That preselecting explanation is the best i have heard, wonder why triple clutch transmissions are not a thing, it would have major benefits to be able to preselect a gear above and a gear below so it's always ready with zero hesitation i would think...
@@speedkar99 A well deserved "Thumbs Up", I must interject. I absolutely LOVE your channel. I wish YT would have shown it to me years sooner. Your dry sense of humor, coupled with your incredible knowledge, is a winning combination, at least in my opinion! Thank You for all the effort that you clearly put into making these videos, which definitely make me and I am sure a few others, just a bit smarter! You ROCK!
Nice video. Lot of engineering went into designing and manufacturing of this transmission, I am impressed. I drove a Porsche Boxster with a DCT, it was a very good unit, crisp/fast/precise. But I personally prefer manual transmissions.
It's hard to describe the feel of a DSG transmission to someone who's used to regular automatics, so great job doing that in your vid! My MK6 GTI has the DSG and I love how lightning quick the shifts are. My only dislike is getting going from a full stop, as it can be a bit rough. I've learned to just give it more gas than you'd think as opposed to easing on the gas pedal to try to gently roll off the line.
The guy I bought my car from said his family owned a VW with a DSG, and they sold it with close to 200k miles with the original DSG still working well. He said they maintained it with regular fluid and filter changes. MAINTENANCE IS KEY!
People don't do maintenance and then say that a car is unreliable, like not changing the timeing belt and then saying a chain is better (i personally prefer a belt that i know when to change rather than a chain with plastic tensioners that idk when to change and are just gonna fail)
Excellent teardown, definitely a great transmission, too bad their TSI suck. FYI drain and fill is pretty easy, once drained you can fill through the filter. It's a little slow but works fine.
Ohhh. I always thought the final drive gears was included with the clutched mass. I guess it makes sense that those would be unclutched though, lowering the inertia for synchronizing.
@@speedkar99 Yeah. I just thought the twin clutch idea was a clutch on the input between engine and input shaft, and another clutch between the final drive and the output shafts. Don't know what system I was looking at that worked this way, but I just assumed they all worked that way.
i loved the snap ring removal tool, yesterday i used that tool to remove siged car wiper bolts, i keep two of them handy 4 inch and 5 inch chorded and chordless
My question is how they change gears smoothly when they are friction clutches engaging so fast. On manual transmission, if you release the clutch quickly you will experience a slight jerk even if in correct rpm.
Great video, I am trying to find a problem my dq500 is having with going into drive. When I start the car and put it in drive it won't engage until the car is completely warmed up. If I give it a little gas it will engage but it slams in so hard the tires chirp. Once the car is warm it engages fine and drives and shifts with no issues. I replaced the hydro tubes hoping that would fix it but it didn't. Any idea what would be causing this? Thanks
I own Acura TLX with 8 speed dct with torque converter. I do get confused moments on very low speed sometimes, but I love that transmission. Especially on the s sport mode when when it does rev matching downshift. It shifts faster then anything. Every time I drive my other cars, I realize how boring planetary based automatics are. And manual in no match either.
Those clutches are likely original. These DQ250 gearboxes are very robust. My passat tdi just hit 193k miles (300k something km) and scantool reports plenty of clutchlife left. Car has full service history, the transmission is all original, even the dual mass is!! Which was shocking to see for me, having had multiple dmf failures on manual vws before. I drive my car very spirited and this gearbox is amazing. Never ever had any problems with it. Sometimes it can jerk a bit in heavy traffic, but its very occasional and only when you are messing around with the pedals, you kinda have to drive it with purpose lol. I loved driving manual but eversince i got a dsg i dont think ill ever go back. With flappy pedals it feels almost like a sequential. People are scared of these because "they fail a lot". The thing is, they only fail if you dont change the fluid. That will kill it for sure.
@@dr.alangrant8969 That's correct. When you put a DCT in drive you don't get the usual lurch that you get when a conventional automatic transmission engages. Instead, as long as you keep your foot on the brake there is no power at all being coupled from the engine to the transmission. Then when you take your foot off the brake pedal the computer engages one of the clutches a tiny bit and the vehicle will start crawling along very slowly. Then when you push down on the gas pedal the computer gradually engages the clutch until it is fully engaged and the vehicle starts to accelerate.
The speed and frequency of shifts is far higher/faster than any normally driven manual gearbox. The shifts are done in the background up or down depending on the mechatronic logic, only actually engaging when the clutch on that shaft is engaged and on the old ratio’s shaft clutch disengaged. So there’s never a load on the shaft and synchroniser that are idle even though the synchroniser may shift several times before finally the clutch is used to engage drive on that shaft. The mechatronics working the piston that shifts the selector and therefore the next ratio up or down has no damper and the ram works extremely quickly and forcefully. I’ve bench tested these things using compressed air rather than hydraulic fluid and the changes are what most mechanically sympathetic people would call ‘brutal’.
If I don’t shift from drive to sport mode at all, would it prolonged the clutch disc life more than 100K or maybe 200K? I have a dct transmission in my 2017 ioniq
Great video. I prefer VW’s approach to DCT’s over Honda/Nissan going to CVT’s, both in terms of performance durability. Which do you prefer having taken both apart?
Ford Powershift DCT's actually work pretty well and are reliable once the leaky input shaft seals are replaced with the updated ones and the oil soaked dry clutches are replaced. Ford created a nightmare for itself by manufacturing these transmissions and putting them in cars when they knew about the problems with the leaking shaft seals. I rode in one of these just today that was fixed at a Ford dealership three years ago and it works perfectly.
Please, I have a low speed whine when coasting from about 40mph down to about 20mph which i believe is coming from the transmission. What could it be? It's a 2006 Acura TSX auto. With 155k miles.
@@speedkar99 the dual mass flywheel .. how does it know which clutch to use? 1 clutch needs to be released for the other clutch to engage and vice versa. How is that done? With the mech only? Neighbors car has a S4 Audi with shutter when he stops and in reverse. He doesn't get it when he shifts to neutral while stopping. Was not sure if it is his flywheel or mech unit.
I often watch videos at 1.75x speed but yours I was able to watch at 1x. Great editing and no time wasting 👍
Glad you like the speed, I thought it was too slow
I still continue to be highly impressed with your knowledge on cars. You're like a neurosurgeon working on cars. UNBELIEVABLE. Like a walking encyclopedia. Good for you!
As a junior (thermal/aero) enginner in the automotive, I consider these videos pure GOLD! You would not believe how much stuff we learn in school, and even on the job, but especially now with electric vehicles everyone specialises on just a tiny parts/systems of the car. Seeing this stuff is so interesting, and it allows through your eyes and experience to have the general view of all the systems! Plus now, a lot of these mechanical parts will be gone with EV, so I try to learn what I can before they disappear completely! Thank you!
Glad you learned alot. I too didn't learn any of this in engineering school
Great vid, as usual. Those clutch pads are in mint condition given the fact that the vehicle drove over 300 kkm. Looks to me like a great piece of engineering.
Sure is quite the engineering.
However I have no history on the car if these clutches were changed before....
@@speedkar99 You're right, I didn't think about it - it could've been replaced at some point.
@@dehypnotizer I've got a manual v dub. This DSG tranny cost over $300 to service. The manual was $50. Though some things are engineered well, others like the plastic water pump.....not so much. I've got a Japanese car for EVERYTIME something breaks on my v dub.
@@easley421 What failed in your transmission? I have a DCT and it seems to be quite robust (2nd car, no service, except oil changes, required).
@@dehypnotizer Nothing failed in my tranny. It's a six speed manual, BULLETPROOF. What I was saying was the service for the transmissions were vastly different. The DSG first service 300$, my manual $50.
I have a 2013 Volkswagen CC. So far I've had to change the water pump, the fuel control module on top of the fuel pump, rewire the wires connected to the trunk lid because they crease and cause the car to become possessed when the wires touch. I'm not even joking, my girl put it in reverse one morning and the trunk popped. I go up in there and pull the wiring harness out and they're all frayed to shit. There's been a few other incidents with this car, all the while my 2006 G35 remains running, without an issue.
My buddy is a mechanic and sent me a pic of a new Dodge Ram tranny filter change. The entire pan of the tranny.......PLASTIC! With the filter BUILT IN. This shits not gonna get better. Hold on to anything between 2001-2009. The best years for cars and bike IMO
Literally blown away. The machining to make it all work is only matched by your explanation. Thanks for all the effort to teach me why bicycles still have a place in this world (maybe horses too). Your #1. Still do not understand how you can sit cross legged based on the Mrs. cooking. You two are real stars of youtube!
Wanted a DCT video for a while now. Great video as always.
GREAT video, I had no idea how these worked. The condition of the clutch disks is amazing. Great design. Thank you.
You are welcome! I didn't know much myself until tearing this down and researching
These are very valuable spare parts. Hope they get to work again some day.
Great video. Understood everything ...except ... how could anyone invent this!!! Pure genius. Nobel prize material!
It sure is genius. But not very popular as the Mechatronics unit typically goes on these
Absolutely love your videos very educational and hilarious I appreciate all you do. Watching your videos is so easy because your not afraid to show your process of figuring it out when others cut that out and try to look like they know it all and don't make mistakes. Keep it up I look forward to all your videos
I'm glad you like them, feedback encourages me alot. For me, the process is if it doesn't come out, then the angle grinder will take it out haha
Love the toothbrush… this some of the best content on RUclips!
Glad you appreciate it
Wow I can’t lie I was expecting all the parts to be worn and in poor condition, glad to see VW manufactured a (mechanically) reliable unit.
I personally find that people give VW a bad rep. All you need for your VW product to be reliable is treat it kindly. But that’s just my opinion.
@@dragonofyorha well to be fair VW cars have been known to have electronic issues and become expensive to maintain once they reach a certain point down the road.
Nope, it's quality is not very good
The newer gen. of DSG are More reliable than the first one. The first gen. was crap
@@PDD87 less worse, you mean....
That bit you said about the transmission becoming "confused." This is exactly the problem I have with modern car technology. The transmission itself is fascinating, and in theory, a great idea. But making it so complex that it cannot function, is a bad idea. I can't imagine a Turbo-Hydramatic becoming "confused." Great video, and as always, I love your choice of rags to clean up with.
Yeah unfortunately the nature of DCT's being able to shift quickly relies on alot of computer input. As algorithms get better that should be ironed out.
a late turbo-hydramatic has a whooping count of...4...gears that are wide and torque converter lockup came around in the 90s. If you're fine with the garbage gas mileage, then sure, keep the "unconfuseable" dinosaur which shifts at glacial speeds.
If you want a smaller, lighter and substantially more efficient auto gearbox, you need a computer. Or a manual transmission...
Transmission's always make my brain hurt, but I think this is the first time I feel like I've understood something about their mechanicals.
Your appropriately used fast speed is wonderful. I wish everyone used it in their videos.
I'm glad you like the pace. Sometimes I think I'm too slow
While looking very complex amazing it works as seamless as it does. Been driving manual transmission cars for long time but recently purchased a 2022 VW Arteon that has the wet clutch 7 speed DSG. Hope it is as dependable as standard manual transmission. Thanks for posting the interesting and elucidating video!
I'm not sure about VW's recent DSG but the older ones had issues with the Mechatronic unit
@@speedkar99 Thank you for your input!
Your knowledge on mechanical theory is definitely A+ thank you for this video you kept me tuned in from start to finish 🙏
I will most definitely be referencing this video when I argue with the dealer about how fucked my transmission really is. I got a warranty specifically for my transmission (I’ve had terrible luck with them in the past) and they’re replacing small relatively insignificant parts bit by bit as if shifting isn’t rough throughout all gears. I appreciate you sir
Oh, excellent breakdown. I like the way you explained the gear selections but unfortunately you lost me between gears and splines. Good thing no exams at the end. :-)
Incredible video. The editing was great, explainations were simple, and your snap ring tool made me giddy.
I'll always sub to this kind of AAA content.
He has a dry sense of humor. Love it.
Glad you get it 😏
The complexity of this gearbox is mindboggling.
No wonder nobody wants to touch these.
I had the un-pleasure of driving a car with single clutch robotic, and if this one shifts as slow as the one I had (the actual movement of the forks, not the clutch engagement), no wonder the internals are that well preserved.
DSG are one of the faster shifting transmissions. A single clutch would take a much longer time to shift
Fantastic video! You are a Very smart man! Thank you for spreading your knowledge with everyone on here! I really enjoy your humor!
I'm glad you like it 🙂
Ah, the dreaded oil pump drive. It broke on my wife's 2008 Passat, a common major failure which VW wouldn't acknowledge. I had bought VWs all my life until that event, but VW just threw us in the ditch, customer loyalty meant nothing, so I now have a nice Volvo. Nice to see the gearbox tear down, makes you realise how much things have moved on since the days of the Morris Minor with no synchro on 1st gear....Thanks for posting, love the high speed explanation of dual clutch transmission, the concentric clutches seems a nice idea.
Glad you liked it and learned something new
That preselecting explanation is the best i have heard, wonder why triple clutch transmissions are not a thing, it would have major benefits to be able to preselect a gear above and a gear below so it's always ready with zero hesitation i would think...
Special snap ring tool definitely gets a thumbs up
Well thanks!
@@speedkar99 yes sir. I very much enjoy watching you tear things down and explain them. Your videos are great and always entertaining and educational
@@speedkar99 A well deserved "Thumbs Up", I must interject. I absolutely LOVE your channel. I wish YT would have shown it to me years sooner. Your dry sense of humor, coupled with your incredible knowledge, is a winning combination, at least in my opinion! Thank You for all the effort that you clearly put into making these videos, which definitely make me and I am sure a few others, just a bit smarter! You ROCK!
I'm very thankful for what I've learned from this man.
Thanks for another informative video. Your snap ring removal tool really gets the job done. Maybe you can sell it under the Snap-Off brand.
I wish I had your snap ring removal tool when I was replacing my steering lock last week!
Nice video. Lot of engineering went into designing and manufacturing of this transmission, I am impressed. I drove a Porsche Boxster with a DCT, it was a very good unit, crisp/fast/precise. But I personally prefer manual transmissions.
Yes the shifts are very fast, and that's the main advantage here over the manual.
It's hard to describe the feel of a DSG transmission to someone who's used to regular automatics, so great job doing that in your vid!
My MK6 GTI has the DSG and I love how lightning quick the shifts are. My only dislike is getting going from a full stop, as it can be a bit rough. I've learned to just give it more gas than you'd think as opposed to easing on the gas pedal to try to gently roll off the line.
I agree, the first time I drove this car (MK5 Jetta) I was surprised at how fast it shifted. It also short shifted but then again it was a diesel
Still not as direct as a conventional MT, but it's a nice compromise between AT and MT
Great video! Love the way you explain how things work
Thanks!
The guy I bought my car from said his family owned a VW with a DSG, and they sold it with close to 200k miles with the original DSG still working well. He said they maintained it with regular fluid and filter changes. MAINTENANCE IS KEY!
People don't do maintenance and then say that a car is unreliable, like not changing the timeing belt and then saying a chain is better (i personally prefer a belt that i know when to change rather than a chain with plastic tensioners that idk when to change and are just gonna fail)
Your videos are put a smile on my face every time!!! Keep it up ;)
I'm glad you appreciate it
Now I know how NOT to disassemble a transmission. Entertaining and informative as always. 😉 cheers!
Now you know how to disassemble a transmission in a way that it can't be reassebled
Transmissions are so cool - thanks SpeedKar
At some point I need to get better clutch plates etc for my dual clutch BMW. Good to see even regular clutches in various cars are strong.
What happened, is your dct clutches going bad?
Thank you very much publisher for this beautiful lesson and demonstration .
Amazing video as usual, thank you for putting out straight knowledge, you’ve taught me a lot so far
Excellent teardown, definitely a great transmission, too bad their TSI suck. FYI drain and fill is pretty easy, once drained you can fill through the filter. It's a little slow but works fine.
Good to know. That probably would make a mess though
@@speedkar99 Not at all use a long neck plastic funnel, melt the end to the filter port hole easy peasy.
Awesome video!! So informative! No torque convertor is really not a good idea in an automatic, will not get a DCT car ever
Thanks.
The concept is good, but the driving feel is a bit weird at slow speed and that's when the clutches wear the most
As a software engineer I have no idea what he is talking about, but I think that transmissions are made with magic
As a mechanical engineer I have no idea how computers work. I think they're made with magic
I so love it if someone exactly knows how things work!
Fantastic video and explanation. One of the best I've seen👋👋👋👋👋
Excellent video as usual, please keep coming, thank you!
Great explanation without the "mandatory" 25 minutes of "filler content" to make the video longer
Great video, thanks for the information and knowledge.
I always noticed on every transmission that reverse tends to be ratioed between First and Second gears.
👍👍👍thanks millions bro. you do better job than my teacher does!!
Ohhh. I always thought the final drive gears was included with the clutched mass. I guess it makes sense that those would be unclutched though, lowering the inertia for synchronizing.
Final drive typically means the differential right at the wheels
@@speedkar99 Yeah. I just thought the twin clutch idea was a clutch on the input between engine and input shaft, and another clutch between the final drive and the output shafts. Don't know what system I was looking at that worked this way, but I just assumed they all worked that way.
Thanks for not wasting my time. Very interesting.Looks like some motorcycle technology there.
this video is sponsored by oral B. your trusty teaching tool in engine parts
Amazing work my friend. Thanks so much for this.
THANKS FOR THE GREAT EXPLANATION
Welcome
Pretty cool video man, I’d love for you to do a transmission review of Honda’s 10-speed transmission & the ZF 8HP series as well.
Damn......... this guy is VERY Good..!!!
Thank You My Friend 🙂
The larger clutch pack is for 1st gear plus etc ?
i loved the snap ring removal tool, yesterday i used that tool to remove siged car wiper bolts, i keep two of them handy 4 inch and 5 inch chorded and chordless
Thanks for the video. Can you do ford dry dual clutch transmission?
My question is how they change gears smoothly when they are friction clutches engaging so fast. On manual transmission, if you release the clutch quickly you will experience a slight jerk even if in correct rpm.
I have a 2021 Kia Sorento with the 8 speed wet DCT. Aside from the clutch setup and number of gears it's basically the same basic functions.
Yes, it's mechanically a manual transmission
Great video, I am trying to find a problem my dq500 is having with going into drive. When I start the car and put it in drive it won't engage until the car is completely warmed up. If I give it a little gas it will engage but it slams in so hard the tires chirp. Once the car is warm it engages fine and drives and shifts with no issues. I replaced the hydro tubes hoping that would fix it but it didn't. Any idea what would be causing this? Thanks
Sounds like you aren't getting enough fluid pressure
@@speedkar99 What controls the fluid pressure? I am stumped on what to replace.
VW DSGs have a repuration of lasting either 300000 kilometres, or 10, as has happened to many earlier customers…
DSG is an initialism for DirektSchaltGetreibe, which is German for... Direct-Shift Gearbox. ;)
Yes, direct shift gearbox
dual clutch doing 300 000 km and still in good condition , great engineering in that
Great description
Thanks
Where can I get one of those circlip removing tools?
I got mine at Canadian tire, like 10 years ago
Your videos go so quick
Please make more videos on electronics
I own Acura TLX with 8 speed dct with torque converter. I do get confused moments on very low speed sometimes, but I love that transmission. Especially on the s sport mode when when it does rev matching downshift. It shifts faster then anything. Every time I drive my other cars, I realize how boring planetary based automatics are. And manual in no match either.
DCT sure shifts fast! I wonder how different Hondas DCT is than this VW
I would have to go to Yale University for 10 years to learn what I've learned from this 1 video.
Those clutches are likely original. These DQ250 gearboxes are very robust. My passat tdi just hit 193k miles (300k something km) and scantool reports plenty of clutchlife left. Car has full service history, the transmission is all original, even the dual mass is!! Which was shocking to see for me, having had multiple dmf failures on manual vws before. I drive my car very spirited and this gearbox is amazing. Never ever had any problems with it. Sometimes it can jerk a bit in heavy traffic, but its very occasional and only when you are messing around with the pedals, you kinda have to drive it with purpose lol. I loved driving manual but eversince i got a dsg i dont think ill ever go back. With flappy pedals it feels almost like a sequential.
People are scared of these because "they fail a lot". The thing is, they only fail if you dont change the fluid. That will kill it for sure.
Agreed. I think it's well engineered except for maybe the Mechatronic unit that might fail. But that's better than replacing the whole CVT 👀
@@speedkar99 For sure :D
Thanks for the useful material!
You are welcome!
So where in the transmission does the power disconnect when sitting stationary but still in drive
The dual clutches disengage
@@speedkar99 so then the clutch engages again when releasing the break pedal?
@@dr.alangrant8969 That's correct. When you put a DCT in drive you don't get the usual lurch that you get when a conventional automatic transmission engages. Instead, as long as you keep your foot on the brake there is no power at all being coupled from the engine to the transmission. Then when you take your foot off the brake pedal the computer engages one of the clutches a tiny bit and the vehicle will start crawling along very slowly. Then when you push down on the gas pedal the computer gradually engages the clutch until it is fully engaged and the vehicle starts to accelerate.
I’m looking at getting a 2019 VW golf sportwagen with the 1.8T FWD. any problems I should look out for?
Maintenance and rust
Simply amazing what men have invented.
Have you done teardown for Austrian ZF transmission
Not yet
@@speedkar99 i hope you do it that will be a legendary teardown
I heard ZF transmissions are the top notch best of the best
very well explained on site thanks
You're welcome!
The speed and frequency of shifts is far higher/faster than any normally driven manual gearbox. The shifts are done in the background up or down depending on the mechatronic logic, only actually engaging when the clutch on that shaft is engaged and on the old ratio’s shaft clutch disengaged. So there’s never a load on the shaft and synchroniser that are idle even though the synchroniser may shift several times before finally the clutch is used to engage drive on that shaft. The mechatronics working the piston that shifts the selector and therefore the next ratio up or down has no damper and the ram works extremely quickly and forcefully. I’ve bench tested these things using compressed air rather than hydraulic fluid and the changes are what most mechanically sympathetic people would call ‘brutal’.
If I don’t shift from drive to sport mode at all, would it prolonged the clutch disc life more than 100K or maybe 200K? I have a dct transmission in my 2017 ioniq
hello what will happen to the Dual transmission when drive is disengaged and moved to Neutral in around 90MPH speed ?
Great video. I prefer VW’s approach to DCT’s over Honda/Nissan going to CVT’s, both in terms of performance durability. Which do you prefer having taken both apart?
DCT
It's basically a manual transmission and you can replace just the Mechatronic unit as opposed to the whole thing when it fails.
I thought honda and toyota CVTs go for over 200000 miles though.
You should do the infamous power shift dct from the Ford Fiesta
I'd love to get a fiesta or focus DCT. I got a focus engine teardown coming soon though 🙂
Ford Powershift DCT's actually work pretty well and are reliable once the leaky input shaft seals are replaced with the updated ones and the oil soaked dry clutches are replaced. Ford created a nightmare for itself by manufacturing these transmissions and putting them in cars when they knew about the problems with the leaking shaft seals. I rode in one of these just today that was fixed at a Ford dealership three years ago and it works perfectly.
I like the custom snap ring tool. Did you make it, yourself? If not, where can I buy one?
Canadian Tire
Canadian Tire
Please, I have a low speed whine when coasting from about 40mph down to about 20mph which i believe is coming from the transmission. What could it be? It's a 2006 Acura TSX auto. With 155k miles.
"It's not winter yet" 🤣 Subscribed!
@speedkar99 legit?
@@Sera5e hell no
@@StevMaHo Typical, I never win anything 🤣
great video, super informative
Notification Squad!🔥🔥🔥
Most people aren't bothered about lightning fast changes, are they reliable?
Can these dual clutch handle higher power?
Dual cluch flywheels seem to fail quite often on manual VW's here in the Uk.
Then why do people use dual clutch flywheels on manual cars?
"It's not winter yet!" - PMSL! You have the driest sense of humour!
Lol it's true... today was 18*C
Is there a throw out bearing?
No, because there's no clutch moving in and out like a manual transmission
@@speedkar99 the dual mass flywheel .. how does it know which clutch to use? 1 clutch needs to be released for the other clutch to engage and vice versa. How is that done? With the mech only?
Neighbors car has a S4 Audi with shutter when he stops and in reverse. He doesn't get it when he shifts to neutral while stopping. Was not sure if it is his flywheel or mech unit.
Great video as usual
It just occurred to me you use everybody's old clothes to clean up the mess but yours.🙂🙂
Yep that's how it works around here 😉
@@speedkar99
Hahaha. Sneaky.
Engines AND transmissions?
Is there ANYTHING the pointer brush can't tear apart?
god i love these videos
I'd really like to see a teardown of a high end Audi transmission.
Like a DCT?
Awesome video!
Is there a difference between a dual clutch and a automated manual transmission? I thought it was the same