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3.0 TDI Lazy Gearbox / Turbo lag issues - Software update?

EssexJohn Jun 15, 2020

  1. EssexJohn

    EssexJohn New Member

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    There have been comments on this (and other forums) plus in the various press reviews about the sluggish performance of the 8 speed box in the C8. I previously had a C7 3.0 TDI biturbo in which I did 124k miles without the gearbox once disappointing; my current C8, whilst a great car in so many respects, seems to have the same poorly programmed gearbox as other folks are complaining about.

    I phoned my local main dealer this morning, who checked into my vehicle and advised there were no recalls for a gearbox software update. This surprised me but I am not sure what I can do now. My car was registered 1/5/19. The only software update their system was showing was for the MMI.

    Can anyone who has had the gearbox software update, please advise as to whether it was showing as an "official" recall, or whether they had to nag their dealer to get it done. Any clarification on this would be very helpful to all I feel.

    Many thanks
     
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  3. Gazwould

    Gazwould Well-Known Member

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    What characteristics are slow ?
     
  4. EssexJohn

    EssexJohn New Member

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    Hi Gazwould, very similar to as mentioned in "My A6 Avant Problems" a little further down the forum. Worst situation is when approaching a roundabout, gearbox doesn't change down appropriately. So when slowing to say 10mph, input on the throttle either results in no response or with more throttle it shifts down and gives way too much power, but with a delay of a second or so. Virtually impossible to get the balance right. Only way to overcome is to manually shift, which should hardly be necessary in such a car as this. Best set up I have found is to put Drive Select to Individual and custom set Drive system to Dynamic.

    Various reviews have also commented on this issue. Maybe it is just a factor of the mild hybrid system?

    I love the car and previously I've had both a C6 and C7 3.0TDI A6. Economy on this one is awesome. But the behaviour of the gearbox just takes the edge off what would otherwise be a great car.

    I am just trying to find out if this is a real problem which has been confirmed by Audi and whether they are rolling out a software upgrade to all.

    Interested comments from others who have had this problem too.

    Thanks.
     
  5. Audidi

    Audidi Useful idiot

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    I think this issue may be the byproduct of eco/comfort modes.
    They really are for cruising.
    Whenever I want to drive briskly at roundabouts and intersections, I have to put it in dynamic or knock the gearbox into sport.
    Then it reacts as it should.
     
    Sean Byrne likes this.
  6. psychopomp1

    psychopomp1 Active Member

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    I thought the gearbox lag was a 'feature' of the 50 TDI, ie its something you have to put up with?
     
  7. Gazwould

    Gazwould Well-Known Member

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    Definitely some classic drive by wire throttle delay .
     
  8. TG_A6_50tdi_quattro

    TG_A6_50tdi_quattro New Member

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    Off another forum but might help, seems you need software no. 100.04

    Hey all, good read on the sluggish pull away problem with A6 50 TDI, My Audi dealer has confirmed that my gearbox software is 100.01 and that the new software 100.04 is now available for my vehicle, in fact, it is going in this week for the update, I hope I notice the difference like some of you have, as waiting for the car to respond whilst pulling out onto roundabouts is embarrassing if not dangerous, Although it is fun when the car responds, well in my eyes it is but not the wife’s!!, I let you know how I get on.
     
  9. Gjjenna

    Gjjenna New Member

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    Hi, yes this is my thread from another forum, as it says, there is a software update, my Audi dealer has checked the number plate of another A6 50TDI that has already had the update and has now identified the software available, others that have had the update are claiming a significant improvement, my car is due for the software update this Thursday so will update once I have had chance to test out!

    Also as above, there is an MMI update available too.
     
    TG_A6_50tdi_quattro likes this.
  10. EssexJohn

    EssexJohn New Member

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    Very interesting Gjjenna, I have a friend who has an almost identical car to mine, he has had the MMI update but found the same as me...that the dealer is unaware of any autobox software update. Will be very interested to hear your feedback once your car has been in.
    Many thanks
     
  11. Gjjenna

    Gjjenna New Member

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    Hi John, will do,

    I will get all the blurb from my dealer, the after sales guy there is a top fella and knows his stuff!

    until tomorrow
     
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  13. Donnythemanny

    Donnythemanny Member

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    Another problem with this gearbox -- if I slow right down ( in comfort mode ) like before a roundabout, the box switches to manual at low speed. It stays in manual, for instance round this roundabout , and I then have to furiously paddle it up to a gear that matches the speed otherwise I am doing 4000 rpm in second gear or whatever ! At this point it is difficult to change gear because the paddles are at the 1200 and 0600 positions as I am steering the car hard right or left. If I catch it right I can put it back into D and after a short delay, it sorts itself out. Anyone else have this **** with the gearbox?
     
  14. Gjjenna

    Gjjenna New Member

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    Hey mate, this isn’t right, and I’ve not heard of this before, suggest you get your passenger to film it and get the car into Audi to fix it, thought my hesitation problem was bad!
     
  15. EssexJohn

    EssexJohn New Member

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    Hi Gjjenna, did the dealer do the software update for you? Any further info?
    Thanks
     
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  16. Gjjenna

    Gjjenna New Member

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    I’ve not noticed any change really, still hesitates, they advised it did not upload first time so would question if it uploaded The second time.

    I’m going to get it rechecked and will advise,

    I suggest you manage your expectations on this, I thought as soon as you hit the throttle you’d be away, however this is not the case.
     
  17. Im2929

    Im2929 New Member

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    I asked Audi UK and then again checked with the dealer but they said no software update for the gearbox is available. The lag issue really makes what otherwise would be a dream car mediocre. All that was done was a MMI update when it went in on Friday. Does anyone know the exact reference for the supposed gearbox update so I can tell my dealer what to look for ?
     
  18. EssexJohn

    EssexJohn New Member

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    Exactly! Does such a software update actually exist???
     
  19. Gazwould

    Gazwould Well-Known Member

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    2020-02-14 09.14.32.jpg

    Sorted .
     
  20. Gjjenna

    Gjjenna New Member

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    Just a quick update on the ‘slow to accelerate’ issue, the TPI that’s required is 2053287/11 but more importantly, this is an Engine ECU update and not a gearbox update as such, the software update is 4K0907401K, I have looked into this using my OBD11 Dongle (snap shot attached showing the latest software has been uploaded) and had this verified by two Audi garages, i am also pleased to say that when you drive in Auto or sport there is a difference in pulling away and changing up and down through the gears, i was driving in comfort mode before and this setting all though improved is still a more sedate driving experience.

    The car also feels better each time i drive it and Audi confirmed this is also due to the car getting used to my driving characteristics, anyway, hopefully this is the end of my issues i have been experiencing as described above.
     

    Attached Files:

  21. EssexJohn

    EssexJohn New Member

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    Thanks for the information Gjjenna. How did you manage to persuade your dealer to upload the ECU update in the end?
     
  22. Gjjenna

    Gjjenna New Member

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    I just asked them as I had a ‘pull away’ problem, do you have a Harwoods or Caffyns Audi dealer you can get to? If so, let me know and I’ll give you the contacts of both who know all about the issue and the fix available. Cheers,
     
  23. Im2929

    Im2929 New Member

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    Hi it would be really great if you could advise of th individuals that do know about this update and then we can refer our local dealers to them. Today I checked with my dealer again and all they could offer was to look at it again - does any one know if when they plug the car in does it automatically show all the updates or do they have modules for different components that must be plugged in individually before fixes show up. The reason I ask is because they keep telling me that only an MMI update was available and I want to know if this is because they were just to lazy to check other modules ?
     

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