S8 transmission recode - Success! :-) - AudiWorld Forums

Go Back  AudiWorld Forums > Audi Models > Audi A8 / S8 > A8 / S8 (D2 Platform) Discussion
Reload this Page > S8 transmission recode - Success! :-)
Notices
A8 / S8 (D2 Platform) Discussion Discussion forum for the D2 Audi A8 and S8 produced from 1994-2002

S8 transmission recode - Success! :-)

Reply

 
 
Old 01-18-2009, 07:56 AM
  #1
AudiWorld Senior Member
Thread Starter
 
Join Date: Jan 2001
Posts: 818
Default S8 transmission recode - Success! :-)

Just found the time to play around with a little transmission coding today. I wanted to see if I could get a transmission that didn't shift in manual, like they used to be.

I wanted to try Mark'sA8L suggested coding of 00032 or 00022, but my car didn't accept any of these.

I then tried 00131, which it accepted.

And behold, it now behaved just like my old A8 sport! :-)
- No upshifts at redline, just hits the limiter (even in 1st).
- No downshifts at kickdown
- Only automatic downshift at very low rpm, actual rpm depending on gear. 5th at ~1000, 4th at ~900

The behaviour is the same if manual mode is selected by tip buttons or by gear selector. No difference between "D" and "S" mode in this respect either, but "Manual S" mode seems quicker than "Manual D", like before. Selector in tiptronic gate acts just like "Manual S" when it comes to shifting time.

Just for the fun of it, I recoded to 00121 also. Didn't notice any difference from 00131, but it came four inches of snow today, so road testing was somewhat limited by slow non-quattro vehicles.

The soft code in my car was 00101 before I changed anything. After googling a bit, I believe this means:
xx1xx: DSP engaged
xxx0x: New model tiptronic shift strategy
xxxx1: Region: Rest of world, quattro

In other words, changing the xxxYx toggles between old and new "tiptronic shift strategy"
xxx0x and xxx1x is the new behaviour (semi-automatic tip mode)
xxx2x and xxx3x is the old behavior (manual tip mode)

This link confirms that this is the case for the A4:
<a href="http://www.ross-tech.com/vag-com/cars/audiB5.html">Ross-Tech article</a>
KjellA is offline  
Reply With Quote
Old 01-18-2009, 08:55 AM
  #2
Member
 
Join Date: Jun 2008
Posts: 358
Default

The advise for xxxx2 is for USA cars. Rest of world, like yours, need xxxx1 (quattro only)
DutchDoofus is offline  
Reply With Quote
Old 01-18-2009, 09:39 AM
  #3
AudiWorld Senior Member
Thread Starter
 
Join Date: Jan 2001
Posts: 818
Default

Do you know what the difference is? Could a US car be coded 00131?
KjellA is offline  
Reply With Quote
Old 01-18-2009, 02:03 PM
  #4
Member
 
Join Date: Jun 2008
Posts: 358
Default

Only with a euro TMC i guess. But why would you want to? I makes no difference according to my info.
DutchDoofus is offline  
Reply With Quote
Old 12-12-2010, 08:56 AM
  #5
AudiWorld Member
 
Join Date: Jan 2007
Location: Wellington, New Zealand
Posts: 234
Default

Just to add to this old thread, I tried a Tranny recode on my '98 S8. Stock coding is also 00101. It would not take 121, 131, 122, 132, even tried all them with a leading 1 (ie 01101) based on a tip elsewhere.

The only code that would stick was 00111, which is another of the "new shift strategy" type. Gave it a quick drive and the Thump when slowing to a stop then punching the accelerator was nearly eliminated. Also holds gears longer. Perhaps this is a sports mode?
mattsimis is offline  
Reply With Quote
Old 12-13-2010, 12:45 AM
  #6
AudiWorld Newcomer
 
Join Date: Dec 2010
Posts: 3
Default

You could just get a software map on the gearbox tcu
Subversive is offline  
Reply With Quote
Old 02-16-2011, 04:10 PM
  #7
Audiworld Junior Member
 
low944's Avatar
 
Join Date: Jul 2009
Location: Virginia - DC
Posts: 28
Default plain old A8 codes?

should any of these codes work on my 97 A8 ? 4.2 Q (non S8)
low944 is offline  
Reply With Quote
Old 07-23-2013, 06:05 AM
  #8
AudiWorld Member
 
S8ilver's Avatar
 
Join Date: Jun 2009
Location: Denver
Posts: 367
Default

Originally Posted by KjellA View Post
Just for the fun of it, I recoded to 00121 also. Didn't notice any difference from 00131, but it came four inches of snow today, so road testing was somewhat limited by slow non-quattro vehicles.
</a>
Anyone know the actual difference between 00121 and 00131? I've been wanting to try something different on my '02 S8. I'm assuming my coding is 00101 currently. Any insight is greatly appreciated.
S8ilver is offline  
Reply With Quote
Old 07-23-2013, 06:08 AM
  #9
AudiWorld Member
 
S8ilver's Avatar
 
Join Date: Jun 2009
Location: Denver
Posts: 367
Default

Originally Posted by mattsimis View Post
Just to add to this old thread, I tried a Tranny recode on my '98 S8. Stock coding is also 00101. It would not take 121, 131, 122, 132, even tried all them with a leading 1 (ie 01101) based on a tip elsewhere.

The only code that would stick was 00111, which is another of the "new shift strategy" type. Gave it a quick drive and the Thump when slowing to a stop then punching the accelerator was nearly eliminated. Also holds gears longer. Perhaps this is a sports mode?
Or maybe even 00111?
S8ilver is offline  
Reply With Quote
Old 07-23-2013, 08:05 AM
  #10
AudiWorld Super User
 
silverd2's Avatar
 
Join Date: May 2010
Location: East TN
Posts: 2,557
Default

Originally Posted by S8ilver View Post
Anyone know the actual difference between 00121 and 00131? I've been wanting to try something different on my '02 S8. I'm assuming my coding is 00101 currently. Any insight is greatly appreciated.
Codes ending in "1" are for Euro models, as far as I know...US codes end in "2". Look down at the codes for 00-03 A8's here >>

http://www.audipages.com/Tech_Articl...nsmission.html

They should be the same as your S8 code choices but with a 1 added as the 2nd digit. Your stock code is probably either 01002 or 01012. Changing to 01032 will give you sport coding (not "sport mode", like shifter) and full control of 1st gear in tip.

Read over this thread, too...another code (00132?) might give you tip-on-demand at the wheel without shifter positioned...maybe(?) >>>>

http://forums.quattroworld.com/a8/msgs/80892.phtml

My '01 A8 is set to 00032, which gives me sport coding and full control of 1st gear in tip...hold 1st to redline (or user shift) and can be downshifted to 1st at any speed under it's redline, regardless of throttle input...HUGE difference over stock coding...awakens a V8 monster at lower speeds (up to 40mph in an A8...less, of course, with S8 gearing).
silverd2 is offline  
Reply With Quote
 
 
 

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ECS Tuning-Audi
S4 (B8 Platform) Discussion
4
09-14-2017 09:58 AM
Kerry G
Audi A5 / S5 / RS5 Coupe & Cabrio (B8)
3
06-07-2016 02:55 AM
ECS Tuning-Audi
Audi A5 / S5 / RS5 Coupe & Cabrio (B8)
3
02-04-2016 08:36 AM
gorkyc
A8 / S8 (D2 Platform) Discussion
7
10-04-2015 07:00 PM
Kc Taylor
Q7 Discussion
11
09-30-2015 01:51 AM


Thread Tools
Search this Thread
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 06:10 PM.


 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: