I wish....

 

Have you guys tried searching here? Touareg-Freunde
One night, when I'm not too buzy, I mean lazy, to bother with all that English to German and vice versa translating, "Volkswagendude" might try and post the question on there, and see what comes up of it.

Or maybe you guys can try?

 

Sounds like serious T-Reg crowd, do you think you can help us out by asking them? If not, I can probably find some help with German from my German born friend.

thanks
michael

 

I found this the other day:

Modified Valve Body

I'd like to know what they modify and how it changes the shift characteristics of the transmission. And, what are they seeing in the VB that needs to be modified?

They also have a modified torque converter and a complete transmission available. I'm guessing the modified transmission has the updated clutch packs and gear sets that the V10 transmission already has.

I also talked with a tech from a local Audi dealership and they also see a lot of valve body issues with the Q7 and the Cayenne. He didn't say anything about complete transmission failures or torque converter failures, which if true, is reassuring since changing one of those out of warranty would be a big deal.

 

I found this the other day:

Modified Valve Body

I'd like to know what they modify and how it changes the shift characteristics of the transmission. And, what are they seeing in the VB that needs to be modified?

They also have a modified torque converter and a complete transmission available. I'm guessing the modified transmission has the updated clutch packs and gear sets that the V10 transmission already has.

I also talked with a tech from a local Audi dealership and they also see a lot of valve body issues with the Q7 and the Cayenne. He didn't say anything about complete transmission failures or torque converter failures, which if true, is reassuring since changing one of those out of warranty would be a big deal.

Did someone get additional information on that modified valve body?
I would like a nicer and faster shift.

One problem that I am seeing now is that on my 2010 V6 TDI with installed paddle shifter it will shift automatically from 2nd to 3rd in manual mode way before the redline at about 2800 RPM. It does that in S mode as well. I will have to do more testing.

Alex

 

I just called them and they claim that they can improve our shifting behavior 90%. There is some machining involved and replacement of some springs and such, which will result in much firmer and quicker shifting.
Their associate said that they have done about 20 of 6 speed boxes already for treg and that he guarantees that I will love the result.

Your thoughts please???

 

How is it improved specifically? on their website they say mild to wild...so does this mean it the same ****ty shift points and programming combined with harsher gear changes?

 

He said that they cannot change the shift points, this is in ECU, but they can make shifting quick, firm and consistent at all temperatures. Call then yourself and ask, I am as interested as you are.

 

I will give them a ring and see what they say. my own thinking here is that I think the software is what needs to be improved. My V10 is currently in getting a brand new tranny (speaking of tranny issues...) so I'll get back onto this when I get it back.

 

New transmission, I've been through that one already! I hope you have some kind of warranty for that!?

 

Yes, VW realdriver (Fidelity) comes through and makes the warranty worth its weight in gold!. Typical stuff, they skipped right over replacing the valve body and instead are putting in a brand new tranny..$3K warranty pays off to the tune of $20K

My guess is that they've seen enough of this on V10s to not even both throwing parts and money at a tranny that evenutally needs to be replaced anyways.

 

They have you over a barrel if they start finding things wrong with your VB.

That being said, I'm interested in knowing a couple things, like exactly what are they modifying? What parts do they replace during the rebuild? If new parts are used, are they OEM or some other mfgr, like Sonnex for example? How would a modified VB work in conjunction with a modified ECU, which may or may not modify the shifting? How many V10s have they done and is the tuning of a VB for a v10 different than say a V8 or V6 VB?

And, the point is vaild - what if the modified VB only makes the crappy shifting still crappy, only faster?

I wonder if they would host a discussion on this forum about what a modified VB would do for our trucks? Might be a good business decision for them if they can indeed help.

 

They have you over a barrel if they start finding things wrong with your VB.

That being said, I'm interested in knowing a couple things, like exactly what are they modifying? What parts do they replace during the rebuild? If new parts are used, are they OEM or some other mfgr, like Sonnex for example? How would a modified VB work in conjunction with a modified ECU, which may or may not modify the shifting? How many V10s have they done and is the tuning of a VB for a v10 different than say a V8 or V6 VB?

And, the point is vaild - what if the modified VB only makes the crappy shifting still crappy, only faster?

I wonder if they would host a discussion on this forum about what a modified VB would do for our trucks? Might be a good business decision for them if they can indeed help.

Is there ECU / TCU tuning out there, if yes, WHERE!??!??

P.S. as for the rest of your questions, call them. Because, I am not their offical spokes person and might say something that is not 100% true

 

I live 20 mins from them - I can go there this week!!!

 

It wasn't a tranny failure, it was just odd shifting (ie: 1st to 5th with a thud), The flash had nothing to do with it as the behavior was identical before and after. I'll be honest with you I am indifferent to mechanical failures, what I hated about my first '04 was the flat out incompleteness of the product (ie: remote door opening barely worked, cracking wood, stepper motor problems, oddball tire wear etc. etc). This '04 has had all of those fixes (as it was originally owned by a VW exec), so I have zero issues so far with the reliability of my V10.

Fidelity (VW's warranty co) decided to just proactively replace the tranny vs. throwing money at fixes like valve body's, reflashes, fluid changes etc. My guess is that they've seen this before and its probably cheaper for them to replace rather than throw a couple grand at it in fixes that don't work and then end up replacing anyways.

 

V10 transmission behavior

Folks, I need some advice. I just acquired a 2006 V10 (my third Touareg but my first diesel) and it exhibits some strange transmission behavior. Here is the scenario: offroading in the vicinity of Ouray (site of the Touareg Rally), low range, steep downhill, manual mode, second gear selected, 10 mph +/-, foot off gas and brake. RPM will drop to 1500 or so then suddenly jump up to 2500, causing the car to lurch forward, then engine braking brings it back down to 2000 rpm or less. This scenario repeated numerous times on our offroad trip last weekend. Mileage is 59,900! I've also noticed a similar phenomenon at cruise or coast on highway in automatic, high range, mild downhill--the engine will sometimes drop from its normal running RPM to an idle, as if the torque converter was decoupling and allowing the car to freewheel-- then resume normal RPM a few seconds later. On the highway in a high gear, this effect is pretty much unnoticeable. Also notice erratic engine speed changes when going down steep downhill in 2nd gear high range for engine braking. Neither of my V8 tregs did this. Just the diesel. Whaddaya think? Dave.

 

v10 transmission downhill

After further fiddling, it appears that the car will surge forward (engine speed increases randomly) on steep downhills in manually-selected second gear (engine-braking) in either high or low range. Have not been able to exhibit this behavior in any other gear so far...

Further diagnosis efforts have yielded nothing. There are no fault codes regarding engine, transmission, or sensors on Vag Com.

No one has responded to my threads and PMs and the delaers I have called have not ever heard of this problem.

 

I'm surprised to see all the tranny complaints. My 06 is extremely smooth shifting. I recently had the transmission oil replaced with Amsoil and of course had the filter changed at 60,000 miles. I definitely can tell a difference as the little hesitation it had before is gone. The technician said the old oil was about half used up. I wonder if some of you guys would have the oil and filter replaced it it would cure some of your problems.

 

DPolson,

I'm inclined to think you have a harness, sensor or TCU issue. I can't think of a physical issue with the transmission that would cause the symptoms you are describing. The problem is getting the dealer to swap out the TCU for a test. It would answer so many questions.

Good luck.

 

I've tried to get tranny oil changed several times on my 04 and no dealer would do it. They said they never have done it, and that it would cost a fortune if they did. I'd do it myself except I'm not sure what fluid to use.

Further insight on the downhill issue: we went offroading with the 06 V8 yesterday and it actually does exhibit just a trace of the same speed-variation behavior on steep downhills, and I believe it is the hill descent control feature at work. However, on the V8, the speed changes are minimal: +/- 2-3 mph. ON the V10, the speed changes are much more significant and somewhat unsafe. I am starting to wonder if a) the V10's higher gear ratios make the hill descent control ineffective because a small change in RPM means a bigger change in MPH, or b) there is a problem with the operation of the hill descent control. If the latter, what module runs that fiunction? The ECU? TCU? Both? Neither?

 

You can take the VIN number to the dealer and at least have them tell you the part number. Ask how much the filter and pan gasket cost too.

Since this is an Aisin TR60SN transmission, I'd say it uses traditional Mobil 3309. Unless VW put synthetic Mobil-1 in there. It'll be confirmed as Mobil 3309 if they give you "G-052-025-A2". The good thing? Mobil 3309 is CHEAP compared to ZF fluids.

I wish VW offered a ZF transmission option, because IMO Aisin is just not a good transmission.

 

Gasket and screen cost around$70, 3309 is non synthetic,the VW fluid is Synthetic,Marty

 

Transmission shifting

I would like to open the can of worms on 5th to 4th gear shifting, my 2004 V8 does this It has been suggested to me 1. the tranny fluid is loosing its viscosity?. 2. the tranny fluid is low?. 3. the tranny filter may need replacment?. 4. the valve body could be faulty? 5. the wiring loom to the tranny could be at fault?. Has anyone changed the fluid and or levels to maybe a different fluid and got a result? or the filter? could it be that when these people who have changed the valve body and got a possitive result would have changed the fluid anyway and that was the problem all along? what about the wiring loom? why do we all seem to having 5th to 4th problems?

 

Typically it is the Valve body that needs replaced and it has fixed all that have had that done.

 

Hi everyone. this is my first post in here. i have 2000 golf tdi with alot of mods and hopefuly will be an owner of 07- 08 V10 soon.
I did the volve body modification with these guys. they are 20 minutes away from where i live. they rebore and use larger springs and Sonnax parts. I did it for my tdi golf when i did the trany rebuild. and you can deffinitely feel big differents in shifting. smoother and quicker. these guys know what they are doing thay have 2 dedicated crews. one works on Europian other works on Jap. imports Transmissions.
Hope this helps any.

 

Me too

I have an 04 V8 and had the valve body changed very last minute under warranty. This did not solve the problem (1st to 2nd slam and 4th to 5th overall strangeness) entirely but enough to make it impossible to time a bad shift with a VW tech in the car. So warranty is over and I am now going to solve the problem on my own. Here is the question: It has been mentioned on many touareg forums that the bad shifts never happen in tiptronic mode. So far I have to agree. If that is true, can we not remove all the hydraulics and gears and clutches (all mechanical stuff) from the list of possible culprits? Does this not point at bad external wiring or the TCU itself? There has been talk of timing parameters in the TCU regarding how fast the valves open and close. When the shifter is in tiptronic mode, what exactly is bypassed in the system?

Also, it seems to me that the problem was isolated by VW and corrected, as the issue seems to go away after 2005. Some say that the new valve bodies are better made, and to tighter tolerances. If that was the case, would VWCan have not put a new style VB in my Touareg?

I wish as individuals we could sign a waiver, and a confidentiality contract with VW and have them tell us what the problem was and what to do to solve it. I'm not convinced that the AW 09D transmission itself is so bad. Why would it be so successful in many other makes and models but not the 04 /05 Touaregs.

I think VW just slaps new trannies in when under warranty because it’s easier than diagnosing the real problem and when the warranty expires they have a possible new sale with a low trade in price!!

Any thoughts on the no-problem-in-tiptronic-mode line of thought?

Thanks.

 

I am being covinced by my VW Agent that my jerky downshift in the transmission is the wiring loom they say they have replaced 3 all with the same fault 5th down to 4th or an unnecessary kick when accelerating and they have all been cured. Mine is a 2004 v8 and they say with age the loom gets fluid in therefore resulting in poor continuity.I have been thinking in my mind it must be the valve body but they are saying a fault code would show if it was that, I have had the usual flashing done on the computer and that shows no fault codes. The tranny does shift fine most of the time but I would say once every day or two I get this harsh clunk and jerk when the tranny shifts down usually between 5th and 4th and ambling along. I am reluctant to get on a gravy train and try this and that and would like to go straight in there and get it right 1st time but I always seem to end up on the train.?

 

Does sound exactly like a duff valve body.