Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: D3 - is a transmission firmware update risky?

  1. #1
    Join Date
    Jan 1970
    Location
    Hornsby
    Posts
    222

    D3 - is a transmission firmware update risky?

    Hey all,

    Iím looking to update my transmission firmware which Iíve gotten from Gap. But of course they delivered it with a disclaimer that resetting the transmission adaption which is needed to update the firmware may cause the transmission to run worst if itís not needed.

    Is this really as risky as it sounds and has anyone done it and what have they experienced?

    Thanks,
    Randy
    - randy

    2003 Disco 2 TD5 (Now the wife's car)
    2005 Disco 3 V8 HSE

  2. #2
    LRD414's Avatar
    LRD414 is online now Super Moderator Silver Subscriber
    Join Date
    Oct 2014
    Location
    Brisbane
    Posts
    3,302
    Resetting the gearbox adaptions is not risky in itself. It may initially shift differently and then take a period of time to alter back to what you're used to but that's not doing any harm or anything outside normal programming. Reflashing the firmware could be seen as a risk. Hypothetically, if the process was to fail, you may be left with a non-functioning ECU. But note that my comments are not based on experience and I've not read of issues with the Gap reflashing process, so the risk is probably very low. It's similar to the disclaimer they make regarding CCF editing (which I have done). When you are changing anything in programming there's a risk.

    Cheers,
    Scott
    D4 TDV6 MY14 with Llams, 18" Wheels & BFG KO2s, Traxide DBS, Drifta Drawers, Rhino Platform, APT Sliders & compressor plate & Mitch Hitch
    Link to my D4 Build Thread

    Ex '77 RRC 2 door. Long gone but not forgotten.

  3. #3
    Join Date
    Jun 2010
    Location
    Central Coast NSW
    Posts
    1,719
    From what ive heard as the transmissions (and oils) wear the computer adapts to release the clutches differently to provide smooth shifting. When you change the oil and reset the adaptions the clutches and plates and whatnot are more worn than a new box (obviously) and therefore shifts can be clunky and slow.

    Apparently a remedy is to drive it in sport mode for a while.

    My auto mech advised me to not reset the transmissions based on this.

    What are the advantages of updating the firmware?
    '08 D3 4.0 V6 :) - 265/65/R17 on X5 rims.
    FINN - '72 88" S3 - 2.286 petrol - yet to go on it's first adventure
    GONE '96 D1 300Tdi - 2" lift, 32" tyres, HD rear axles, lockers :(

  4. #4
    Join Date
    Jan 1970
    Location
    Hornsby
    Posts
    222
    Iím hoping that the update will remove an annoying habit for the transmission to hold a lower gear when going up a hill near where I live when cold. Gap mentioned the update for mine if for better low speed behaviour. Iím also a bit OCD with updating software
    - randy

    2003 Disco 2 TD5 (Now the wife's car)
    2005 Disco 3 V8 HSE

  5. #5
    Join Date
    Jan 1970
    Location
    Kallangur, Brisbane
    Posts
    901
    Would you have a way of reverting to the current version if the update was unsuitable?
    + 2016 D4 TDV6

  6. #6
    Join Date
    Mar 2016
    Location
    Perth
    Posts
    1,592
    I have always reset adaptations with every fluid change as instructed in the manual and while it changes harsh initially, taking the vehicle for a drive allows it to very quickly reset the adaptations to suit the new oil.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)

  7. #7
    Join Date
    Jan 1970
    Location
    Hornsby
    Posts
    222
    Quote Originally Posted by DiscoJeffster View Post
    I have always reset adaptations with every fluid change as instructed in the manual and while it changes harsh initially, taking the vehicle for a drive allows it to very quickly reset the adaptations to suit the new oil.
    Cool thanks I will give it a go. Iíve had the transmission serviced and they didnít reset adaptations.
    - randy

    2003 Disco 2 TD5 (Now the wife's car)
    2005 Disco 3 V8 HSE

  8. #8
    Join Date
    Jan 1970
    Location
    Hornsby
    Posts
    222
    Quote Originally Posted by Milton477 View Post
    Would you have a way of reverting to the current version if the update was unsuitable?
    I will see if the option is available and post here. I still need to update my iidtool.
    - randy

    2003 Disco 2 TD5 (Now the wife's car)
    2005 Disco 3 V8 HSE

  9. #9
    Join Date
    Mar 2016
    Location
    Perth
    Posts
    1,592
    Quote Originally Posted by goofyr View Post
    Cool thanks I will give it a go. Iíve had the transmission serviced and they didnít reset adaptations.
    I donít think itís the end of the world at all. It just means the adaptations will take longer as theyíre gradual over time whereas I presume after a reset it goes through a rapid relearn. You can feel it happen very quickly.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)

  10. #10
    Join Date
    Jan 1970
    Location
    Hornsby
    Posts
    222
    I finally did the update and all went well. For me it makes a difference, thereís less hesitation at low speed with light throttle so Iím happy with it. On the question of downgrading if I wasnít happy with it I think I would need to go back to Gap for that as this was a custom upgrade.
    - randy

    2003 Disco 2 TD5 (Now the wife's car)
    2005 Disco 3 V8 HSE

Page 1 of 2 12 LastLast

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!