Ford Dual Clutch Transaxle (DCT) DPS6
Unlike regular manual transmissions, dual-clutch transmissions are manual transmissions that are controlled by a Transmission Control Module (TCM) computer. To the driver of the vehicle, these transmissions operate like an automatic transmission.
Dual-clutch transmissions use two clutch disks, two pressure plates, two release/apply bearings, two clutch forks, and two input shafts. One input shaft feeds power to the odd-numbered gears, the other input shaft feeds power to the even-numbered gears.
Other vehicle manufacturers (BMW, VW, Volvo, Renault, Nissan, Ford, Honda, Mitsubishi, Lamborghini, Porsche, Fiat, Chrysler, etc.) use DCTs in some of their cars; some are used in high-performance applications due to the very quick-shifting speed and lightweight.
Questions for Teachers:
1. List the major components of the Ford DPS6 DCT transaxle
2. What is the purpose of the solid input shaft?
3. What is the purpose of the hollow input shaft?
4. What is unique about the Transmission Control Module (TCM)?
5. What is the purpose of the shift drums?
6. Describe How this transmission shifts gears
7. What are some advantages of a DCT?
8. What are some disadvantages of a DCT?
9. What is the difference between a Dual Clutch Transmission (Ford Focus, BMW, Mercedes, Audi, etc.) and a Twin Clutch Transmission (Dodge Hellcat, Corvette, Camaro, etc.)?
10. Tell me one thing you learned or found interesting in this video.
ABOUT US:
Weber State University (WSU) - Automotive Technology Department - Transmission Lab. You asked for it, here it is! This episode covers the Ford DPS6 Dual-Clutch Transaxle (DCT) which is used in the 2012-2014 Ford Focus as well as other Ford and Renault vehicles. This is an amazing piece of technology. This transaxle is made by Getrag and is the model 6DCT250.
We teach current vehicle technologies to our automotive students at Weber State University and online. For more information visit: www.weber.edu/automotive
This video was created and edited by John D. Kelly at WSU. For a full biography, see www.weber.edu/automotive/J_Kel...
Visit my other youtube channel / vibratesoftware to see the amazing NVH app for vibration diagnosis!
DONATE TO OUR DEPARTMENT
Please consider a donation to the Department of Automotive Technology at Weber State University here: advancement.weber.edu/Automotive
Пікірлер: 644
Nothing can be done better than this. Thanks a lot for your time and efforts to explain this gearbox is such a detailed manner.
36:15 They are called Shift Drums. The design has been used on Motorcycle gearboxes for many decades, although most are single clutch, using a single drum with Three grooves.
I have a 2013 Automatic Focus. I am experiencing clutch judder on pulling away. This video was invaluable in understanding the problem and more importantly the correct remedy. Thanks Mark H UK
@WeberAuto
8 жыл бұрын
+Mark Harding Thank you!
The observations about the assembly grease on the release bearing, missing snap rings, and preload consideration on the differential bearing was interesting. I mean the operation that I understood (mostly) was also appreciated. Thanks for making this very valuable video!
@WeberAuto
5 жыл бұрын
Thank you
I researched these transmissions when I was looking to buy a 2015 Focus. I wasn't willing to gamble on one so I got a 5 speed manual instead. Much better transmission in my opinion.
@WeberAuto
8 жыл бұрын
+massltca Thanks for your feedback!
@peteryates9153
2 жыл бұрын
These transmissions are absolute shit. We bought our 2015 focus new and had nothing but problems with shuddering. It's been back to two different ford dealers and they say it has "acceptable" shuddering which is a cop out. They should have been recalled. Stay well clear of them
@trcs3079
11 ай бұрын
@@peteryates9153they were recalled because customers won the law suite. However, because the manufacturers of these transmissions coincidentally went bankdrupt, the best ford could do was give you a certificate for a discount on their new cars if you were to purchase from them.
Thank you for your detailed explanation. I'm in Australia and 2015/16 models are in the spotlight at the moment. I really appreciate your work and your special effort in all your videos. Thanks again.
@WeberAuto
6 жыл бұрын
Thank you!
I'm from Brazil, and I really enjoy all of your teachings!! Keep up with the good work!
@WeberAuto
7 жыл бұрын
Thank you!
Thank you! Very happy to see so much detail. I have one of these cursed things in my 2013 Focus. It shifts exactly like I did when I got my first manual car (terribly), but unlike me, it never gets any better at it. Love the technology; hate the implementation. There have been several TSBs and revisions to the input shaft seals to keep oil from escaping, running down the shafts, and dripping on the clutch discs. There have also been at least five clutch plate revisions. Ford no longer makes their TSBs public, so I don't know what's happened over the past year. Mine had bad seals and had a clutch replaced under warranty. It no longer has the aggressive shudder it had when the clutches were contaminated, but it still shifts horribly. The TCM "learns" as you drive it, but seems to actually get worse at feathering the clutches. It's worst when accelerating from a stop or shifting from 1->2. Possibly amplified by the shortness of the first two gears. Lastly, something inside the box makes a horrible grinding sound, especially when under acceleration and turning left. Ford repeatedly told me this awful, embarrassing noise is "normal". It sounds just like I'm dragging a six-foot steel rod behind the car. I haven't heard a clear explanation as to what's causing it, but I wouldn't be surprised if the box was slowly eating itself. Glad I'll be free of this thing (and Ford's incompetence) after only one more summer.
@WeberAuto
9 жыл бұрын
James Wagner Thanks for the feedback. Hopefully the newest version of the clutch and/or TCM software will improve the driving experience. I would check with your Ford dealer to see what updates are available. Thanks for watching.
@dbsimms63
2 жыл бұрын
@@WeberAuto yeah and the customer will have to pay for that instead of having it done for free like it should be since the customer isn't responsible for this poor design.
@eig1979
2 жыл бұрын
I think I bought your hunk of junk... lol
@charlesschluessler546
Жыл бұрын
Yep feels just like a teenager just learning to drive a manual. Mine is especially bad first to second....really "feathers" the clutch between gears. Inspires a lot of confidence when pulling into traffic.
John, Excellent demonstration of this dct product. Your videos are very educational and are very much appreciated. Thanks.
@WeberAuto
8 жыл бұрын
+Mario Dalla Riva Thank you very much!
Awesome demonstration on how this transaxle shifts. I've wondered how this thing works and now I know. Thanks
@WeberAuto
8 жыл бұрын
+Guy Desrochers Thank you!
@patricknesbitt4003
3 жыл бұрын
Unfortunately now more people get to see how it DOESN"T shift!
I'm really impressed by the way you explain the what is what. My step dad was a shade tree mechanic. So I kinda understand the process of the repair. My dad was a great mechanic!
Very informative. Thanks for taking the time to demo the actual changes from one gear to another.
@WeberAuto
7 жыл бұрын
Thank you!
Very very nice work explaining this. I really enjoyed this lesson. Thank you for unveil the mysteries of this transmission.
@WeberAuto
8 жыл бұрын
+olafito18 Thank you!
أفضل فيديو شاهدته على الإطلاق عن شرح ناقل الحركة
Those selector gears (electric motor driven ones) are pretty much the same as in sequential racing transmissions, which you usually move manually, so there's nothing that much new, but a new combination of old things. Nice to see it apart, thank you for your work!
@WeberAuto
7 жыл бұрын
Thank you!
You're doing awesome job with making this videos. This is super relaxing video on Saturday morning and even better food for thought.
@WeberAuto
8 жыл бұрын
+Adam Kudła Thank you for watching!
Thank you John. Great explanation of assembly and operation of this transmission.
Every time I start thinking I'm smart.....I see something like this! Great job!
@WeberAuto
9 жыл бұрын
Thank you, I thought the same thing the first time I took this transaxle apart.
@JohnBrown-vn2qw
9 жыл бұрын
Che Kelley yeah the more you learn the more you realize you don't know. i wish i was seventeen again thats when i knew everything
Thank you for your video, I am a user of one Ford and it is very useful and now I know how it Works.Again Thank you and congratulations from Colombia.
I am amazed at your in depth knowledge. I appreciate your research work and your teaching skill. I wish to be like you. Thanks for the work.
@WeberAuto
5 жыл бұрын
Thank you very much
Excellent demonstration as well as presentation of DCT. Thanks
Thanks for the wonderful explanation on the inner workings of the DPS6 Transmission. Really nice design, but be execution love the low miles of the car, I can deal with the shudders, but mine just went out, and luckily I'm covered by some coverage extension. Hopefully the next ford I get won't give me this much trouble, and again thank you so much.
@WeberAuto
5 жыл бұрын
Thank you
Great video thanks. Really helped me understand what's going on in my transmission.
Very informative, thank you!....Overly complicated for it's mission.....Does not appear very robust.....
Great video. Excellent camera work. Super detail and explanation of a complicated engineering design. Too bad this Ford Product has so many problems. I am now trying to fix a 2018 Ford Focus with Trans/Clutch issues. Thanks to a bunch of KZread videos and this one I have learned a lot about trans/clutch issues for this vehicle.
Thank you John. Very nice demonstration and presentation.
@WeberAuto
6 жыл бұрын
Thank you!
I have been waiting for this for so long.... THANK YOU MR.WEBER
@WeberAuto
9 жыл бұрын
Chris Spencer Thank you for watching!
Awesome video as always. I greatly appreciate the time you took to present this. I find it fascinating to witness something broken down into digestible chunks. It's also amazing to discover the workings are actually pretty straightforward! I have absolutely no idea how somebody would give this a thumbs down!!! Ignoramus!
@WeberAuto
9 жыл бұрын
Andrew Porter Thank you very much! it is fun to figure out how these new transmissions work.
Hello Sir.I' m from Bangladesh and l' m a headteacher, Jahangir. Your classes attract me a lot,l' m growing resourceful observing your classes, Thank you sir.
Great to see how DCT actually works. Very cool.
@WeberAuto
8 жыл бұрын
+William Lopez Thanks for watching!
Most educational, clearly explained. Thank you.
this is quite useful information for a normal non engineer people who own the car, thanks lots
@WeberAuto
8 жыл бұрын
+Cliff Ke Thank you!
Fantastic video. Thank you so much for explenation.
@WeberAuto
8 жыл бұрын
+Channa Duminda Thank you!
Thank you very much for the effort to demonstrate how that transaxle works before to watch the video, I was lost :) I have not idea how it works. now I know cause I have a 2014 Fiat 500L with a Dual Dry clutch that I need to work on it.
@WeberAuto
5 жыл бұрын
Thanks for watching!
A very interesting lesson! Thank you for sharing it. 🙂
Very well Explained with much detail, thank you.👍
Excellent demonstration, thank you
@WeberAuto
8 жыл бұрын
+Mariano Szklanny Thank you!
Thanks Sir for your professional update on this clutch assembly and emfrmation best of luck my friend 🍀
@WeberAuto
7 жыл бұрын
Thank you!
Great video on Ford powershift 2 clutch auto
John, that was an excellent presentation!
@WeberAuto
8 жыл бұрын
+pfweeks Thank you!
Excellent and thorough review! I researched the Focus when looking for a car in 2012 and this transmission had me look at the Chevy Cruze. The Focus is a nice car, but the transmission seems very costly to fix and maintain. Thank you
Thanks for a fascinating description of how it works. I tested a Focus with Power Shift to-day (25th April 16) and I was very impressed by it. From comments below I am somewhat worried by its long term reliability so I still have to make a final decision
@WeberAuto
8 жыл бұрын
+John M Thank you!
Excellent sir, impeccable as always, thank you.
@WeberAuto
2 жыл бұрын
Thanks again!
congratulations, I really enjoyed this class. very well explained! I'll follow, I'm from Brazil🇧🇷
Great video! I have learned that ford has updated their software for the tcm so that it delivers better shifting capabilities as well as better responsiveness. I just purchased a 2017 focus in February and it rides and shifts great(so far lol). It was a big change since I traded an 05 focus for this new one. I plan on taking it on a road trip in a few years from now. Again great video! This is the only way I can learn from these hands on easy to understand videos
@WeberAuto
6 жыл бұрын
Thank you!
Very good video Thanks !!!!!👍👍👍
Thank you for displaying this.
Fantastic work 👌 thank you for making this video!!
@WeberAuto
Жыл бұрын
Thank you Randal!
Excellent tutorial as well sir!
That is amazing, I was wondering what that lurch was between 1st and 2nd, turns out it was the engagement of one of the two clutches as the transmission switched input shafts.
Amazing teaching! Congrats.
@WeberAuto
6 жыл бұрын
Thank you!
William sir very good. Very informative video .thanks alot
you are a very good teacher
Awesome video learning every day greetings from tulua Colombia
@WeberAuto
5 жыл бұрын
Thank you
love your video on how this transmissions work, i really appreciate it, and im gonna ask you if you ever come accross a vw dgs, and do something similar, i will be great, and thank you again for your good work,
Thank you for the excellent video.
@WeberAuto
8 жыл бұрын
Thank you!
You make Great videos. Thanks
@WeberAuto
7 жыл бұрын
Thank you!
i felt high on knowledge, the best drug in the world. thank you.
@WeberAuto
8 жыл бұрын
+sugar glider Thank you!
Thank you very much, Greate explanation
Great video Weber. Great understanding how that double clutch works in my car now. Got my car out today and it was exactly as you explained, clutch foul from lubricant. The new seals are brown now instead of black. Ford really did me right on this one. All the recalls, and additions from the dealer I can't explain and a detail. I knew I was buying some new, really un-tested crap but I bought it anyway. I haven't had allot of problems with the car to be honest, I just figured it to be quarks but after all the work and the trans controller, it really drives nice now. Keep in mind I took the car in for door latch recall.
@nasmitty5261
7 жыл бұрын
My friend has a 2014 as opposed to my 2013 and just complains all the time but never takes it in. Also has a Master cylinder check valve leak which screws everything up. Maybe 2014 wasn't a good year.
@WeberAuto
7 жыл бұрын
Thank you! I am glad to hear you got yours fixed and operating properly. Thanks for the feedback.
@alanjm1234
Жыл бұрын
@@nasmitty5261 if your friend never takes the car in to be fixed, how does he expect it to get better?
Very well explained. Thank you
Great video about a p.o.s. transmission. Well done on the detail. 5/5
very interesting video! Thanks for uploading!
@WeberAuto
9 жыл бұрын
Thank you!
@Reaglesracing44_
9 жыл бұрын
my first video that i watched of yours was the Manuel transmission operation. may i ask why do you use a wheel chair??
@WeberAuto
9 жыл бұрын
06CHEVYDURAMAX Muscular dystrophy is getting worse. Thanks for watching.
Muito boa explanação.
Wonderful wonderful. I was secretly hoping you'd get your hands on one of the DSG (DCT) transmissions from either VW or Ford. Nice clear explanation - I've learned much. Thank you!
@WeberAuto
9 жыл бұрын
Thank you!
Great video thanks
This is great! I would love to see the NIssan GR6 unit analysis like this
@WeberAuto
7 жыл бұрын
Thank you! I would like to get my hands on one.
Thanks for this information
Great informative video man
Congratulations, you are very didactic, Thanks a lot for share this great explanation, The DCT is wonderful , I am focus 2014 owner and it work great.
@WeberAuto
8 жыл бұрын
Thank you!
Thanks for posting. I had one in a 2013 focus, unfortunately it was complete crap car wouldn't move under its own power at 100 miles. I've got a dual clutch in a VW now, works a treat.
@WeberAuto
8 жыл бұрын
+Andre juneau Thanks for the feedback!
In my opinion, it would be very interesting to see a video describing the single dry clutch Magneti Marelli "Selespeed" automated manual transmission, used for example on the Ram ProMaster (Fiat Ducato) 3.0 EcoDiesel.
One advantage of a DCT is that it can pre-select the next gear. Say you're in first, the transmission will have second pre-selected, and all the transmission has to do is engage the clutch that drives second to shift from first to second, and with most DCT systems you can shift without lifting off the gas. If you don't let off the gas in a regular manual transmission, you can reduce the life span of your clutch and transmission.
@alanjm1234
Жыл бұрын
The DCT actually lifts off the gas for you. And rev matches on down shifts too. The TCM "talks" to the PCM and operates the throttle. When it's working well it's excellent. Unfortunately some, like the wet clutch 6DCT450 are far too sensitive to dirty oil, and dry clutch versions can overheat their clutches.
Great job
thanks for sharing...
Excellent learning video thanks
@WeberAuto
8 жыл бұрын
+pcuser80 Thank you!
I have one of these, and never changed the clutches but had the TCM replaced once. 213k miles. It does buck a little when getting the shafts to the same speed from a stop, but I've changed how i drive to better suit it and it drives pretty well. I give it what i know it expects with throttle position to better its shifting and it does just fine for me. A seal on the CV let it leak and now it makes some noise from being low on fluid, but its topped off again and running strong- that was 40k miles ago. Lots of interstate driving is about all it sees. Probably wouldn't of made it past 60k in the city.
Excelentisimo video ,se agradece y asi logramos aprender todos y que aceite especial llevan este tipo de caja .
Thank you for your great video. I just bought a 2017 Tucson and Just knowing how it works makes me feel competent to operate the vehicle in the proper way so as not to prematurely wear the dual clutch.
@WeberAuto
6 жыл бұрын
Thank you!
Thanks a lot for this video!!!!
@WeberAuto
6 жыл бұрын
Thank you!
great video, thx. i would love to see you take that dual clutch apart and let us know how it works.
Nice work well explained
@WeberAuto
6 жыл бұрын
Thank you!
Like dis video very much because is very informative
excellent video
@WeberAuto
7 жыл бұрын
Thank you!
Thank you, your videos are always very informative. Its always interesting to see how DCTs and ECVTs are competing with regards to fuel economy. Hondas fit (with i-DCD) is quite interesting architecture as it also has a planetary gear.
@WeberAuto
9 жыл бұрын
Thanks for watching!
12:00, my car unfortunately has one of these (2014 focus) and in practice it is does not act like a traditional automatic transmission lol Thanks for making this video though, I love to see how the internals of something I own work, especially explained by someone that knows what they're talking about.
@WeberAuto
3 жыл бұрын
Glad it was helpful. Thanks for watching
I wonder how did you cleaned it out the in-house, it looks nice 👌 I took down mine but I couldn't clean it like that...😢😢😢 Thanks for the video very goo general information 👍 👍👍
well done...
really i like this video i overhauled clutch assembly i did not open gearbox
@WeberAuto
9 жыл бұрын
sukesh punathil Thank you!
Very nice, thaks a lot.
@WeberAuto
8 жыл бұрын
Thank you!
My mother's Focus uses this transaxle. Feels like a manual the way the clutches apply. Spins the tires on accident, often. And you can't brake torque it. It defaults to neutral so it revs like you have the clutch pedal depressed in a manual. Even in drive, as long as your stopped with the brake depressed. It's been in under warranty once to have a clutch motor replaced and a reflash. Certainly better than the CVT alternative, and gets remarkably good mileage, thanks to the lack of slippage.
@WeberAuto
8 жыл бұрын
+Michael Allen Thanks for the feedback!
This is actually a pretty accurate demonstration of how smoothly this transmission shifts gears! 😏
Excellent
Gracias por la información, le agradezco y lo saludo muy actualizada de gran ayuda.
@WeberAuto
Жыл бұрын
Thank you
good one, thanks...
Okay guys, listen up here. Shuddering is caused by non-aggressive driving. Which means the more you take it easy on your accelerations from a stop, the more the clutch slips and causes overheating problems with the clutch disc and flywheel. This causes "hot spots" on the pressure plate and flywheel creating "shuddering". There is nothing wrong with the shuddering condition, your car won't break down. P073 codes and lack of reverse or forward movement is caused by a faulty TCM. Ford also has hidden warranty on this, so inquire before you pay for repairs. A replacement TCM is usually necessary followed by reprogramming and clutch "re-learn" procedures. If you have to pay, you should know that the TCM takes less than 1hr to change out, but I don't the cost of the TCM itself. The Focus is a fantastic car otherwise, great on fuel, handles like a dream, comfortable and fun to drive! That's all I can say about that!
thanks...
Really great video John, very detailed. I drove a Focus with this transmission couple years ago and really enjoyed how quick it shifts when commanded manually. Being mechanical inclined I always look further and wondering about the longevity of this transmission. The clutch, the clutch motors and the integrated gear selecting motors may be a thing of concern down the road. Specially that it seem that the motors that select the gears are part of the TCM. Thanks
@WeberAuto
9 жыл бұрын
gianfrancoa Thank you for watching! Good points.
Thanks
@WeberAuto
3 жыл бұрын
Thanks for watching
thank you...