Allroad Transmission

[Black-Forest]

Hello all we just bought a 02' Allroad with a bad auto transmission (no reverse) I was wondering since I more than likely have to replace the trans what would be the best series automatic trans to swap in? Is there 6 speed auto available that would swap in? Thanks for any advice.

[PaperToast]

options are another OEM slushbox or the 01E 6 speed manual, no 6, 7, 8 speed autos for this beast

[rollerton]

You can really ONLY use the Allroad specific trans unless you do some sort of conversion since the Allroad has it's own special gearing and Axles and stuff.

[Black-Forest]

Just thought while I was doing the job I should at least put the better parts in her. Any upgrades I should do while I'm in there?

[Black-Forest]

So I picked up the car yesterday towed her back to the shop and found no reverse or forward gears. The car will crawl along but when you rev it up she just slams into forward gear, I did not try this with reverse. I pulled the codes and found only P0730. I have yet to pull the pan but that should happen tomorrow I did however check the fluid level and had to top up 1L did that with no change... Will update as I go.

[Black-Forest]

One question I came up with last night... What years of Allroad transmissions can I swap in and is there a better year to use?

[Black-Forest]

Pulled he pan today and found no chunks or anything I would classify as excessive on the magnets or pooling in the fluid. Fluid was black but did not smell burnt. I did however before pulling the pan disconnect the TCU at the trans and found I now have reverse.... but LTD forward gears as it went instantly into limp as it should. Think while I have gone this far I will pull the valve body and inspect things a bit further.

[a4kamila6]

sticky piston in valve body caused by old dirty fluid is a common failure in these transmissions. im not saying that Is why you have issues with your transmission, but it could be related to it.

[Das22]

I have an auto grand from an 04 allroad if you need it.

[Jake@JHM]

Swap in a 0A3.

[Black-Forest]

Swap in a 0A3.

I assume thats the trans code for a 6 speed manual?

[Jake@JHM]

I assume thats the trans code for a 6 speed manual?

Out of a B6-B7 S4-RS4. Great gear ratios

[Black-Forest]

I have an auto grand from an 04 allroad if you need it.

I assume you mean auto trans? If so perhaps will find out in the next few days after I check out the valve body.

[Black-Forest]

Out of a B6-B7 S4-RS4. Great gear ratios

I would love to go to a 6 speed but it sounds like a fairly involved process and in my experience with swaps I always end up getting shorted 2 or 3 important components...

[Jake@JHM]

I would love to go to a 6 speed but it sounds like a fairly involved process and in my experience with swaps I always end up getting shorted 2 or 3 important components...

If you change your mind we have the recipe of what it takes so just let us know

[Black-Forest]

I can tell you if I drop the trans out of this thing I will be installing some 3" downpipes and perhaps K04's That I assume you would have?

[Jake@JHM]

I can tell you if I drop the trans out of this thing I will be installing some 3" downpipes and perhaps K04's That I assume you would have?

We have similar turbos: https://jhmotorsports.com/shop/catal...7t-p-3552.html

[Black-Forest]

Looks like some very nice stuff I could use to blow up either my current or replacement transmission : )

[Black-Forest]

Well I pulled the valve body today and gave a closer inspection. I didn't find any chunks or anything out of the ordinary but that said I am NOT an automatic transmission expert..... I drain the valve body made sure all surfaces are nice and clean reinstalled valve body new filter installed pan but had to go collect the kids from school so I was unable to install fluid and test that will happen tomorrow

[rollerton]

Here's my take on the valve body troubleshooting: Always swap in a DIFFERENT valve body. Even if it's a used one that you don't know anything about.
If you have it back together, valve body drained/ cleaned etc..and it does EXACTLY the same thing what have you learned? You still don't know for sure if the valve body has a bad solenoid or what. Unless you're a guru and can decipher MBV of the trans module with Vag Com then it's pretty hard to narrow it down by cleaning that valve body.
Others might disagree; but I don't think these transmission problems we typically see are very often valve body related, in fact it's kind of pretty rare. So if you had swapped the VB with any other one and it did exactly the same thing I'd feel okay with a bad trans diagnosis; so you have learned something. IF on the other hand it behaves VERY different then you've learned something that way also. This is because the odds of two VB's having a similar or identical failure is not likely.
By reinstalling the old VB the only way you know anything new is IF it is fixed. If it's NOT fixed...then ...? you still don't know if part of the VB is bad.
Either way...good luck.

[a4kamila6]

You have a point rollerton. Guess only way to know for sure is to basically do an experiment.


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[Black-Forest]

Quite honestly I have a 1 in 20 chance of making this happen but thought I would take a spin on the wheel and hopefully learn something in the process. I have done many transmission services on various European cars but never tackled a problematic transmission.
If things don't go well tomorrow I will be in search of a replacement transmission and more than likely a repair kit for the one coming out just to keep the insanity going... Will a 2004 Allroad transmission swap into an 2002? I hear the 04' transmissions where the better ones. Please correct me if I'm wrong.

[Black-Forest]

Well back to square one... Just so I know what is the difference between the allroad transmission and an A6 with the 2.7??

[a4kamila6]

Allroad transmission has different gearing and axles. Might even be different rear diff and different drive shaft, that im not sure of.


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[tewnick]

If you change your mind we have the recipe of what it takes so just let us know

Interested.

[Jake@JHM]

Interested.

Shoot me a PM with your vehicle info!

[Black-Forest]

Well... I just bought a 01' Allroad with a bad steering rack as a parts donor so I should have lots of good extas available shortly. .

[Black-Forest]

Decided to keep both the Allroad's and was fortunate enough to locate a very low mile transmission. Just putting the finishing touches on the install. I can tell you it was a challenge and my hands are way too big to work on Audi's.... Next mission to install the new rack in the 01' and dismantle and rebuild the old trans from the 02'. Thanks for all the assistance and with 2 of these I will be on here a fair bit hopefully for fun projects.

[Black-Forest]

Happy to report the transmission swap in the 02' worked perfectly.