Why Volkswagen 09G Transmissions Fail
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- เผยแพร่เมื่อ 19 มิ.ย. 2024
- Here's a look inside the Volkswagen 6 speed automatic transmission and how it works!
The Volkswagen 09G transaxle was used in the Rabbit, Golf, Beetle and Mini Cooper and was developed by Aisin Warner. Its main defect is with the valve body, with valve seats wearing down, valves sticking, solenoids being defective and the valve body not being able to properly control the shifts in the transmission causing slips and shuddering.
This transaxle utilizes planetary gearsets, clutches and an integrated differential to form 6 forward gears and one reverse. It has a manual valve controlled by the PRNDL selector, an integrated valve body accessible by the pan below and an open differential as well as a top mounted transmission fluid cooler.
This transmission came from a 2008 Volkswagen Rabbit with an inline 5 cylinder engine. Interestingly enough, this transmission does not require special fasteners or tools to disassemble, which is atypical for a VAG product.
The inline 5 cylinder engine teardown can be found here:
• The Volkswagen 5 Cylin...
Skip to section in the video:
0:00 Introduction
0:53 Teardown
10:54 Valve Body
13:00 Transmission Internals
15:34 Conclusion
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Nice and complete teardown. These transaxles are actually pretty mechanically robust as you discovered during your teardown. The weak link is actually the linear solenoids of the valvebody as the small bushings inside the coil assemblies wear and get contaminated and stick the armature causing failures. It’s the same exact failure mode as the AW55 5 speed auto used in many GM, Volvos, Nissans, and other European makes. These are the first design large can solenoids found in many AW designs and some Toyota transmissions. They eventually redesigned the linear solenoids to a small can design eliminating the bushings and the sticking problem. They are interchangeable as well. You remove the linear solenoids by removing the small pins with a magnetic pen or pickup tool. They slip in and out easily. The adjusters are to make changes to the regulator valve inside each control bore as each linear solenoid has no adjustment. This is another change AW made compared to the early AW55. The adjusters were part of the solenoid assembly.
More frequent fluid changes make a big difference in the life of these transmissions as the OE had really bad advice here. Also later designs with the small cans last a lot longer without failures.
Thanks!
Good info. AW55s in turbo Volvos drop like flies for similar reasons - sends a lot of good cars to the scrapyard as the replacement gearbox must be reprogrammed using proprietary software; total costs usually exceeds the car's value. Didn't know VW autos had the same issues.
I tried using a magnet and couldn't get them to come out either
@@tonyl7286 The problem with the AW55's in Volvos is that they don't have a (replaceable) filter; inbuilt obsolescence I think it's called ;-) The nightmares I had with these shitty things.
Can you swap a 09G out with a later model VW trans . I read there are 3 possible valve bodies and was informed Vw doesn’t have any new replacement valve bodies for purchase anywhere in the USA. I don’t trust rebuilt trans companies . What would you do if your 09G was slipping. I changed fluid with little difference. Maybe change fluid again?
The amount of knowledge and understanding is astounding, either this man has gone through a lot of problems in his lifetime or has studied alot or both
@OutrageousPenalty The 09G is a Toyota (Japanese) Transmission & its not "Known for failure". That tranny he's taking apart didn't get serviced & obviously never got serviced.
Well thanks you. I learn as you do while taking these things apart!
@@speedkar99I have a new shorts for you to watch like share with your friends.
A lot of problems? Try using your wife's toothbrush for car work and see how that ends up for you. :)
The 09G is a automatic transmission designed by Aisin Warner (Toyota), also known as the TF60SN, that fits a variety of Volkswagen , Audi, Toyota, Lexus, BMW, GM.... vehicles. The list of Vehicles this transmission is in is expansive. The new Aisin 8 Speed's list is just as expansive.
Yes
Where can I find a book on this transmission and easy place for parts are they worth rebuilding or should I just find a used one lol😂
Their is 2 or 3 versions of this transmission also right. I know theirs a couple different filter / pan setups
"I'm just gonna -carefully- disconnect these connectors here, making sure not to damage them."
*snip*
I love his wit in these videos.
Haha you caught that 🤣
Thank you for posting today, I appreciate it. Merry Christmas to you, your wife, your brother, and their respective toothbrushes and T-shirts.
Something that bugs the hell out of me...transmissions must be engineered, and they're always changing them, but why do so many of them (automatics) have so many problems? I mean, they're complicated of course, but it's not rocket science. Well, in any case, I'm grateful that they provide teardowns for channels like this.
Well that's the thing, they are complicated. They gotta be made within the constraints of a budget, talent, application. People want something smooth, quick shifting, but it's going in a cruddy nissan versa, so they gotta compromise. Sometimes they have to source parts from a manufacturer and those parts aren't great. There's a lot of considerations. Most importantly is maintenance which is highly neglected especially among those who treat their cars like an appliance and only know about oil and filter changes. Some people misuse and abuse them, etc etc.
Agreed there...it's their shear complexity that make them fail. There's also multiple failure points and wear items like clutches and solenoids, where as a manual has none!
As it is said, so let it be written.......change all the !@@$# fluids in the vehicles. No matter the make, model, manufacturer. Blows me away the factory recommended miles per fluid change. Speedkar and many knowledgeable viewers have made it to be know. Fluids are so cheap compared to hardware. SO much time and money to repair/replace what could of remained in operation. Speedkar you are the Master with many knowledgeable viewers. Thank you "all" for doing your best to try & save this third rock from the sun.
Kind of amazed you're not yet on 1M subscribers man. Your channel is pretty unique and gives off a general good vibe.
Thanks..I wish I could get to a million
Thanks for all the work you put to make these videos. Merry Christmas.
You are welcome
Damn! My boi's a carpenter as well! Is there no end to Mr Kar's talents?
Excellent video as usual Good Sir.
I like being a jack of all trades ...except maybe when it comes to dealing with rust work
Love your droll comedy. Very entertaining disassembly of these transmissions.
Great video and efford made by Speedkar 99! What I understand from this video is that mechanically the transmission is quite ok, and also that it is clear that changing oil is critical. Again and again this is proven by technicians. So, no matter what people or even dealerships tell you, just change the oil in your car frequently, both engine and transmission. It will save you a lot of trouble and off course a lot money!
Agreed! It's such easy maintenance and yet it gets neglected.
I didn't know you were in Malton. I grew up there... Cool! Happy Holidays!
Yep! I grew up here too
Morning everybody, this is Speedkar back at yah 😄😁
Happy holidays
Cheers
Yes, good morning
From what I understand it is the valve body that fails on this exactly as you have described! VW claimed this was a fill for life Transmission, the first red flag! Great video 👍
For the first couple of years yes. After many rabbits blew gearboxes around 150k miles vw recommended 40k mile fluid changes. There's a dude in Reddit with automatic passat with over a million miles. Just do your fluids and your fine.
Happy Christmas 🎄 ,Speedkar99
👍
Can't wait for the next video training
From Nick Ayivor from London England UK 🇬🇧 ⏰️ 20:18pm Good Evening
Thanks
Merry Christmas sir.
Maybe you can do a video on shift solenoids and how they work??? Great vid man... keep 'em comng.....
Great suggestion!
I was watching a precision, transmissions channel and that pasty stuff is actually clutch material from the steel clutch packs. the clutch material just wears anyway, usually not a big deal though if you change your fluid pretty regularly, but eventually you do have to have the whole transmission rebuilt
Excellent video
Thanks
When I see all the stuff inside these automatics, it make me love my Chrysler A-555 5 speed manual even more. Geeeze!
Chrysler?
@@speedkar99 I should clarify; '91 Dodge Shelby Daytona. It was still the real Chrysler back then. BTW, I think you are one of the very best on TH-cam.
As a biomedical equipment technician (I repair medical equipment), learning about electronics was very abstract. You can not see electrons, you can not see the flow, you can not see the voltage, the best you can do is sense the heat, or meter individual locations to get readings. Very difficult to understand and teach.
Which is why I get paid the good money. 😜👍
Nice punchline.😂
Good call ..as we move towards a more electronic future, electrical engineers will definitely be more in demand.
That parking pawl mechanism looks awfully dinky for something that can hold the weight of a modern car. There's a reason I use my parking brake so much, even if it's more psychological than anything.
Nice video, some of the most complex stuff always goes over my head with automatic transmissions, but they're absolutely fascinating.
Its a Aisin transmission from Japan. Toyota owns Aisin. Not a VW transmission.
Yes.
Here in the UK, until recently, the majority of transmissions were manual, not the case anymore, so a whole new generation of people will soon find out the price they paid for not wanting to change gear for themselves. My wife is currently learning to drive and said she didn't want to bother learning manual transmission. After showing her fuel economy comparisons, I'm going to make her watch this video. No doubt she'll completely ignore me as usual and I'll get saddled with the consequences. She's not easy to live with like me. 😊
Mercedes, ZF and Aisin Automatics will usually outlast the rest of the car if serviced properly. Fuel economy difference isnt worth it honestly in todays traffic I value an automatic.
How the heck are you going to put that thing back together
I see the problem: it's not a manual.
True...the manual diesel VWs last a long time.
Can you explain how the automatic transmission of vw in the video works ?
Suprising...Aisin Warner makes the best transmissions.
Is the oil of the differential part different, such as 75w80?
Thanks again for another great video. Is it possible I could make a request? I don’t know where to ask so I’ll ask it here. Can you find a Jeep Cherokee KL (2014-23) to tear apart? They have a unique drivetrain known as “Active Drive”. A ZF9 transmission with 5th speed dog clutch attached to an electronic PTU (transfer case) that is connected to a driveshaft that somehow disconnects the RDM (rear differential) turning the Cherokee into a FWD car when not in use. On paper this is great. I can get 30 mpg with the 3.2 V6 on flat roads and highways. Then in auto mode when needed the 4WD system kicks in seamlessly and automatically. But.. The failure rate of Active Dive (could be PTU or RDM) is so bad Stellantis can’t keep up with spare parts. If the PTU fails a certain way, it will cripple the Cherokee with no repair parts sometimes for months even with the warranty. How do they fail? Why do they fail? I suspect it’s a flooded electronic actuator motor. No one seems to know for sure. There is no in depth information about the Cherokee KL Active Drive. Nothing close to what you do. Thanks.
I love my 09g transmission. I did have to get a replacement because whoever owned the car before me drove it until they burned the clutches on it. The used replacement works beautifully though. To get solenoids out you just need a magnet to take those pins out first. Been there done that.
Thanks for the tip on the solenoids, I used a magnet and they didn't come out.
@@speedkar99 Since you said it didn't have a pan put some wd40. They may be stuck and just wiggle the solenoid. Those just slide in without and restrictions. They will usually fall out once you take the plate off actually.
If you turn the microphone settings on your camera to manual you wont get so much background noise, cause everytime your not talking it will automatically adjust the audio level to bring in all that background noise
Nice, a transaxle for Xmas!
Haha yep
The 09G is made by Aisin. Toyota also uses this Aisin transmission.
What toyotas have this transaxle? Last I checked this is a volkswagon specific transaxle
I thought I mentioned that in the video
@@speedkar99 Ah might have missed it I was multi tasking.
My trans in ‘09 2.5l Jetta was never serviced until 120k miles, which was around the mileage when it started to shift rough. So I do a drain and fill. Six months later, it started slipping anyway. my trans replacement is out of a ‘09 Jetta 2.5l Trans has less than 30k miles. I’ll be doing a drain and fill every 37500 miles/ 60k km like the manual says.
Prior to getting the transmission replaced, the valvebody was replaced in the original trans almost 3 years (13k miles) after I did the first drain and fill. I thought a remanufactured valve body would be a good idea (big mistake). It just started slipping extremely hard after that along with new fluid.
At 25K miles I drained 96 oz out of my CVT and refilled with 112 oz. still smooth and perfect at 85K. Fluid was changed 4 other times,112 out and 112oz back in always. The first change the original fluid was filthy!
Keep changing it
Yeah i use to rebuild these like hotcakes. Wish I had more of them. I deal with the aisin transmissions vw use now which really don't have as many mechanical issues of the 09g. We've replaced so many mechatronic units for these while they were still under warranty.
Was it just the valve body that needed rebuilding?
@speedkar99 not at all. But it wasn't surprising when vta wanted us to replace the mechatronic and it magically remedies "all their problems" lol 😆 until it doesn't.
09g is an aisin transmission...
@CatonsvilleCentralRwy yes. Just not thr current model
I know how they work in theory, but seeing this tighly engineered mess of gears in a box that just works is somewhat magic
It sure is a mess of things that all have to work together to somehow propel the vehicle
Excellent teardown. I run an 09G out of my Mk5 Rabbit '06. It's got 220,000 miles under its belt so far. Unfortunately, I never changed the transmission fluid - I never expected the car to reach 200k lol that 2.5 engine won't die. I'm heavily considering changing out the ATF but I get a lot of hearsay and gossip about changing transmission fluid in high mileage cars that have never had it done. I've never had issues shifting, plus it's done plenty of mountain/canyon and long distance driving. I tend to ride it hard, too. What's your take in your experience? Would I be smart to change out the ATF at 220k?
Drain and fill
Notification Squad!🔥🔥🔥 Happy Holidays!🎅🎁🎄
Thanks...you are a bit late this time haha
i have one, its life is around 170 000 km, then when it warms up it starts to jerk from 3rd to 4th.. and the more it warms up it begins to jerk all around, undriveable. no spare parts as its aisin warner japanese production
What about aftermarket rebuild kits
I noticed the filter is really more of a screen than a filter i think if they went with regular changes and more traditional filter the valve body may not have as much trouble as they do are shift hard second and to third and slightly hangs to 4 sometimes now the other major issue is the driver side cv axle is a pain 2 3 shops tried getting it out the traditional way. Only way get it out weld a big hammer to it or bang wedges or fork behind it or put a new axle in the old inner cup thats what had to happen to ares for the time being but after it being horsed on in the shop it makes a light chatter and im.not sure if its the new axle chattering in the old cup or the differential is messed up.from them beating on it . Ive driven 20 thou plus and its not gettinf worse with 226 thou on it . I changed the fluid last year since my wife had no idea it if it had ever been done it came out looking like motor oil with a grey hue to it 😮 lol 😂 the magnets werent really bad considering the millage some light creme on them. Probalt from the valve body 😂
Ouch!
Seems like a very compact 6SpAuto. Would you say it is perhaps undersized for its purpose?
No, there was zero mechanical issues indicating not undersized by a big margin. The problem here was early Aisin Warner engineering flaws, exacerbated by the owners never changing the oil. read danhg3885 post which explains it clearly.
No, these are relatively small cars
In our '08 VW Rabbit, we had our transmission throwing 3rd and 4th gear codes IIRC. Our mechanic ended up replacing the solenoids and it has ran a lot better since. It's still not perfect as it sometimes slip if you mash the gas, but considering we're gonna drive this thing into the ground, I'm not too concerned with a valve body rebuild or anything else major.
my friend took it to a mechanic, and they fixed just enough to clear the code and drive home but then it failed again in less than a week, and they refused to see it again, maybe me scared of buying anything VW from then on-wards :(
@@Eduardo_Espinoza I feel that man. When I was looking for a car for myself, I made sure to stay away from anything with this transmission, even though our Rabbit is a fun car to drive. Ended up getting a Honda Fit and I love it.
You could have got the manual version.
You just running it as is slipping for now?
@@speedkar99 more or less, yea. It only really slips if you're trying to launch hard off a light or something. During normal use, it's been perfectly usable. We just keep up on the fluid levels and whatnot just in case.
experiencing hard shifts between 2/3 and 4/5, changed the fluid to no avail, is it worth replacing the valve body or do i sell and get a new car
Time to move on.
Valve body in the Aisin Warner AF40 also wears out the bore, hard shifts 2-3 & 4-5. Another "sealed" system that supposedly never needs the fluid changed. 🤦♂️
I'm at 140k and have changed the fluid twice. No idea if it'll prolong the life but hey.
Later models 2010 or 2012+ say 50k fluid changes.
Yeah that's the main flaw here. At least the valve body can be swapped out
I guess the valve body is a “maintenance part.” I wonder how much it costs?
Merry Christmas!
$600-700. rebuilt.
where in Canada are U
According to Scotty Kilmer, AISIN builds most reliable transmission in the world, since it's a TOYOTA business. Well, this transmission is an AISIN.
Glad you disconnected the wiring harness with such care😂 Be thankful they used bolts where you can get to. Rather, some obscure wild fastener that VW enjoys using....
Yes Thanks
in my country the worse curse is: "daboda imo kvar na automatskom mjenjaču".
Now I see, why.
Everyone I knew and the people that knew and the famous specialized VW tuners HPA, had issues with this transmission :(.
Sadly
So I suppose the valve body rebuild kit is worth it since the rest seems well put together 🙂
Yep
Not if the clutches are toast.
Suzuki or Honda which Japanese engine is more durable??
That is not a Volkswagen transmission, it is built by Aisin-Seiki.
I thought I mentioned that in the video.
@@speedkar99 I may have missed it. Most auto manufacturers buy their transmissions these days.
Any plans to tear down a vw 1.4t? I want to hear the problems those engines have had.
Not until I can get my hands on one
I don’t believe the accumulators are preserving pressure so much as they’re absorbing the shock that comes from built up pressure between gear changes. More like snubbers.
Yes, thanks
and no such thing as lifetime fluid. change every 30,000 miles. As some manufactures claim.
It's for the lifetime of the transmission not the car 😹
did these come in thr jettas?
Yes & this is a Toyota Transmission not a German & they dont fail if you keep the fluid changed.
Yes
Basically, magic. To me. ;D
A ford 4.6 2 valve would be a nice teardown to see why they're so bulletproof
Sure. Send me one
Hold up...Aisin as in the Toyota company?
How about 5 speed 2003 gti golf
That's better
I struggle to understand anyone who buys a VW over a Toyota or a Honda
I struggle to understand the total ignorance of people like you who think the Aisin transmission is a VW part. You clearly don't know that Aisin is owned by Toyota.
@@einfelder8262 VW went with it. So it's a VW sanctioned part. Just get a manual trans. These are done at 150k-ish.
in this case it doesn't matter a lot. But overall it's just marketing and doing what other people do, without thinking by themselves
If everyone bought a Toyota or Honda life would be a different way....much more boring than it is now.
Imagine the nightmare assembling all of it again
2:17 - That there is that good ole' "German engineering" that there is. 🤠
Yeah
@@speedkar99 I'd like to once again express my gratitude for your generosity in sharing your wealth of knowledge and problem solving with us for free. Truly a remarkable resource and i love the editing pace, nice and quick. Merry Christmas and thank you again mate.
Vw factory recommended 80k fluid change for their trans
That's too long
@@speedkar9960k good ı guess
@@speedkar99 a few I spoke to about the intervals said: 60k km/37500 miles for a interval. Is that good?
If that’s the one made by Asin it is one of the most robust transmission in the Universe
Aisin yes .. not the best
didnt know an accumulator is a actual part
Yeah it's a storage tank for fluid
lifetime guarantee means lifetime of the car guarantee .
what is the lifetime of the car ? manufacturer spec is 2-3 years . some offer 5 .
If you read the fine print, it is the lifetime of the warranty in most cases.
Lifetime of the transmission lol
“Make sure not to damage them”
*proceeds to cut and damage them*
Looks like that filter got smushed .
Without a pan everything is smush
@@speedkar99
Good reason to include one
It is Aisin transmission not vw.
Yes
day 1 of requesting why 06 acura tl transmissions fail
For all the shit the Germans get, this transmission is what sent my friend's 2.5 Jetta to the junkyard, a Japanese Aisin component.
Sad
Still better than Ford's - Getrag DSG invention
So good internals bad valve body design.
Yes.. unless you let the valve body destroy the internals with the jerks and slips
Even Aisin ain't perfect. Just ask Volvo owners with the 5-speed automatics while Toyota get the better ones
No, Aisin isn't bullet proof
Meanwhile most of these last well past 200K miles if people just service the fluid and filter!
True.
Why do they fail? All you did was hack apart a transaxle. I want my 16 mins back.
Glad you enjoyed the video.
In Europe we stick shift our cars... And nobody give 2 hoops about automatic. That's why every automatic from Europe is crap... Except ZF because they are transmission company
Why anything European or American fails? BEAN COUNTER CHEAPNESS.
Its a japanese transmission
Hondas fail too...but generally easier to find parts for and replace it cheaper ..
Compared to Euro cars they might be a little weak but at least they fail in the hundreds of thousands of miles unlike most Ford automatics that usually fail anywhere from 10k to 40k and that's not a joke ford wins on horrific transmission every time the VW will keep working if you change fluid in time Ford will fail whether you do or not I will not put anyone I ever care about in any Ford ever because there are only 4 models they make reliable and now they are down to 2 trucks and even those are unreliable now 5.0 V8 is marginally reliable now that's it used to be 4.6 or 5.4 2 valve not the 3 valve that were reliable in rwd and 2 in 4wd other than that anything AWD fwd v6 i4 anything other than the modular v8s you could not depend on ford Taurus mercury sable Lincoln Continental all of them the transmissions fail every 30 to 50k miles like clockwork they sold almost 50 million assorted models of the fwd v6 they also like to develop almost unsolvable stalling issues that unless you know these cars and the causes no mechanic will ever figure out the relay brain on the radiator that fails and a few other ps the 3.8 v6 blows head gaskets and you see almost none these days because they are awful cars they sold almost 60 million over 15 plus years and there are probably a few dozen left in each city
Slow yo ta transmission *
Ok
Now repeat after me, transmissions are expensive, ATf is cheap...
Fluid is cheap
Transmissions are expensive
Every 50k if u actually do it is just fine and will last
infamous leaky engine...
This is usually lack of maintenance as I have found out. I have fixed all the leaks on mine since the car had not been maintained. Then again this is usually the case for many cars, people don't maintain them.
Why do they fail? Answer: Volkswagen
Except not made by VW and another poster commented that they’re also used in Toyotas. I never heard of Toyota transmission failures though.
10:55
@@craigiefconcert6493 I have heard of many Toyota failures.
Why do ignoramuses like you keep commenting bullsh*t. It's a Toyota made Aisin transmission which VW was stupid enough to believe would be reliable. Oh, what a feeling when it was discovered this Japanese transmission was rubbish.
Yet soooooo many people believe vw to still be reliable. One of the many things still making vw money from the days of air cooled reliability
The only good automatic transmission is a Toyota
09g is very good too. Someone never changed their ATF in this 09G.
The ASIN are also in Toyota....
It would be nice if you had enough brain power to know this IS a Toyota transmission, used in VW and many other makes. So It's clear that your comment is false.
if the oil was changed regularly in this Aisin (= Toyota) it was still on the road....
Not exactly...alot of them had this issue regardless of maintenance
@@einfelder8262 ok which Toyota model has this gearbox?
Volkswagen, yikes....
over engineered, no wonder they failed
They don't fail if you take care of them.
even with filter and fluid they still fail, wt automatic transmission is that without a dipstick? oh i kno, they copied bmw without a dipstick for engine oil...@@wandameadows5736
Yeah I'm not a fan of the fake dipstick
I thought Volkswagen used good transmissions. 😢
Not this one
@@speedkar99 All brands have their bad batch. :-/