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DTUK TCU+ gearbox flash review

Daggerit Sep 13, 2018

  1. Daggerit

    Daggerit Well-Known Member Team Floret Silver TFSI Owners Group Team V6 Audi S4 Audi Avant Owner Group quattro

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    I thought that since I'd been running the gearbox tune from DTUK on my S4 for a while now I'd give some feedback so others can decide if it's a good option for them.

    Basically it feels like it's tightened up the gear shifts. Downshifts are significantly faster and therefore smoother and I've found that it's much smoother when travelling slowly and in traffic. I've also noticed with the 'butt dyno' that the pull in gear is stronger, potentially being down to the torque limiters being raised slightly to let more of the available power through.

    Thankfully, the most annoying aspect of the gearbox has also been addressed by the tune. The initial lag is better, but the transition from braking to accelerating (like when approaching a roundabout or junction) is night and day. My car used to pogo if you tried to get on the power immediately after being on the brakes but this doesn't happen anymore thankfully.

    I can't comment on the outright speed of the upshifts being faster as advertised because I've not had the chance to do a full launch control (that's the only time I noticed the shifts felt sluggish), but I'd imagine that much of the smoothing at low speeds is down to the shift speed being increased.

    For installation it took all of 6 minutes and that included the 5 minutes for allowing idling of the engine afterwards.

    All in, I'd definitely recommend it if you have the spare cash and it can be supplied for most makes of cars rather than just Audi. It also works with S-tronic and has similar positive effect by all accounts!

    If you decide to buy, feel free to mention you read this review and it might get you some money off. ;)

    If you have any questions about my experience of it, just ask! :)

    https://www.diesel-performance.co.uk/tcu-gearbox-flash-tool/
     
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  3. motty225

    motty225 Member

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    How does this stand for being detectable if there's a warrenty issue with the gearbox/engine?
     
  4. SwordfishCoupe

    SwordfishCoupe Member

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    I wish you guys would stop making me spend money.

    It is on my future shopping list.

    Sent from my SM-G960F using Tapatalk
     
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  5. syed123

    syed123 Active Member

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    Let us know when you can try Launch control!

    In theory it should launch better but I'm just curious to see if you have the same issue as me.

    Mine still not working, before the flash it would rev to 3500rpm and take off.

    One thing I noticed after the flash is that it only revs to 3200rpm and doesn't feel like a proper launch.

    Weird that the flat out acceleration feels stronger..
     
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  6. Daggerit

    Daggerit Well-Known Member Team Floret Silver TFSI Owners Group Team V6 Audi S4 Audi Avant Owner Group quattro

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    I haven't had any experience with it going into Audi after the tune so I can't comment first hand I'm afraid. I've searched the interwebs though and not managed to find a single negative review of these units (used TMC's version as a search as well and it was the same) which I think these days is pretty impressive.

    They are advertised as not being detectable though and from what I've read they don't fully overwrite the software, it's more of a modification, so it doesn't change the update counter and remains undetectable as a result. :)
     
    SMI77 likes this.
  7. Daggerit

    Daggerit Well-Known Member Team Floret Silver TFSI Owners Group Team V6 Audi S4 Audi Avant Owner Group quattro

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    Do it! ;)
     
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  8. Daggerit

    Daggerit Well-Known Member Team Floret Silver TFSI Owners Group Team V6 Audi S4 Audi Avant Owner Group quattro

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    Will do. I'm not sure when that will be but I'll update once I have!
     
    syed123 likes this.
  9. ABYSS

    ABYSS Andrew - Diesel Tuning UK Site Sponsor Team Ara Blue Black Edition S3 Saloon

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    Were offering discounts on these are present, so maybe an early Christmas present :)
     
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  10. ABYSS

    ABYSS Andrew - Diesel Tuning UK Site Sponsor Team Ara Blue Black Edition S3 Saloon

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  11. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    I totally concur with Daggerits findings and thank him for doing this review, saves me the trouble!
    Just to add, I have been driving mine around in all the different modes and found the downshifts virtually indetectable with only increased engine braking detecting the change in gear. At first I had to look down at the gear indicator so I could tell which one I was in.

    As far as detection is concerned I would think it is extremely doubtful if any dealership could detect it even if there was a gearbox failure.

    It is also linked to the car's VIN so no passing it on to anyone else once used.

    I would say the impact this device has had, coupled with DTUK's tuning box, is the easiest and most economic way of extracting good performance from the car.
     
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  13. SMI77

    SMI77 Australia Audi S4 Audi Avant Owner Group quattro

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    Actually, I was formerly on a Subaru forum. Whenever a new member joined, the most popular posts were "Welcome, trust you brought your wallet with you, because you may think you won't need it, but rest assured, you will". It gets into your blood.
    You know, with all this new found power, tune box & TCU tune, you could still spend more money and have that power come quicker, via a Pedal box!!!
     
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  14. q5man

    q5man Mythos Appreciator Team Mythos TFSI Owners Group Gold Supporter quattro Audi Q5

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    Bl00dy hell, expensive day.

    Just ordered:

    upload_2018-9-13_17-6-57.png

    And the App Control + the TCU Tune.

    Will report back when all fitted and tested...nervous about this bit!

    Thanks for the help @ABYSS
     
    Riko0073, A4A4, ABYSS and 2 others like this.
  15. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    I have all of those and look forward to your thoughts about them too...
     
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  16. ABYSS

    ABYSS Andrew - Diesel Tuning UK Site Sponsor Team Ara Blue Black Edition S3 Saloon

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  17. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    I don't use WhatsApp but was my review on TrustPilot ok?
     
  18. ABYSS

    ABYSS Andrew - Diesel Tuning UK Site Sponsor Team Ara Blue Black Edition S3 Saloon

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    It was thank you sir :)

    We’re still dealing with Danielle as she started emailing under the name of Robert and I realised it was her so called her out.. (I’ve got a 6th sense for bull)

    For the last 3 days we’ve been trying to take money off her for a loom and TCU, and it’s been hard work as she doesn’t use PayPal and wants it shipping via a not signed for service ...
     
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  19. Manity

    Manity Member

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    hi i have a 2018 190 tfsi auto same as yours how does the flash deal with the excessive engine braking that seems to affect the car sometimes when almost coming to a stop i.e. 3rd to 2nd. i didnt get it on my 2016 A6 same gearbox but ive seen other threads relating to this problem cheers. Alan
     
  20. q5man

    q5man Mythos Appreciator Team Mythos TFSI Owners Group Gold Supporter quattro Audi Q5

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    already useful feedback for me from this group, and I don't even have the product in my hands yet :icon thumright:
    One member already posted some actual pictures of fitting locations for Q5, as I was panicking that I needed to jack the car up to get to boost sensor :scared2:
     
  21. q5man

    q5man Mythos Appreciator Team Mythos TFSI Owners Group Gold Supporter quattro Audi Q5

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    more about just asking questions/getting feedback from existing users, as I said, already been very good (and quick) answers to my queries.

    You probably don't need, as a happy user, unless you wanted to evangelise on there, but then you don't use WhatsApp :thumbs up:
     
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  22. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    I have never experienced excessive engine braking at all, so I can't really comment, and I can't say I recall any other owners commenting on this either in here or in AudiWorld.
    I don't think you have the same gearbox as your A6 had either as the gearbox for ours is a dl-382 developed for the A4 and manufactured in China...
     
  23. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    I have always been happy with the response I've received from dtuk, and informed them of this, but I am not about to start using WhatsApp just to do so..
     
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  24. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    I checked this out with dtuk before I purchased, as I prefer to get it from the horses mouth ;-) and almost immediately I had a response with pictures. As always a excellent service...
     
  25. Paul Golding

    Paul Golding Active Member Team Brilliant Black TFSI Owners Group saloon Audi A4 S-line owners group S tronic

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    I get something like this and it would be my main reason for getting the DTUK mod. I've never bothered to mention it here because I simply can't replicate it. I can't say for sure what setting, or whether using D or S causes it. I've a feeling that it happens rarely into AUTO/D, but I'd probably say the same about DYNAMIC/D or S. It's just not consistent enough to put your finger on. I've even considered it could be caused by the rate of deceleration i.e. a long gentle approach to a junction is less likely to feel jerky.

    Regardless of how or why it happens though, I most certainly experience it. Sometimes it's like feeling a very definite downshift, but other times more like that, plus a dab on the brakes as well. Maybe it's just one of those things and nobody is bothered enough to mention it.

    One thing I am certain of though, the S-tronic in my B7 2.0 tfsi was more responsive on pulling away, and far, far smoother going both up and down the gears.
     
  26. ABYSS

    ABYSS Andrew - Diesel Tuning UK Site Sponsor Team Ara Blue Black Edition S3 Saloon

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    This is some recently feedback from a B9 2.0 TDI owner, who likes to "trundle along"

    Right, part 2 of 3 updates on the TCU. Again short regular trip this morning from cold with lots of low speed junctions and roundabouts....cold, low speed changes much smoother, slow approach and pull away much much better. Comparison on old with same throttle input and time over same distance results in higher terminal speed. I have not been above 45 and for me it wasn’t about outright performance as I have a B9 2.0 Tdi but it is just quicker for the same input without trying at all....will do a long run today and see what it’s like at speed. Who knows the secret of the black magic box......
     
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  27. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    Page 107 of the manual might describe that this is built into the gearbox by design. But for someone who would use a downshift of a manual gearbox to aid slowing down instead of using the brakes, to me, the gearbox is working as it should. I think automatic gearbox do not do this.
     
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  28. q5man

    q5man Mythos Appreciator Team Mythos TFSI Owners Group Gold Supporter quattro Audi Q5

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    agree, no need for you to
     
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  29. silo24

    silo24 Member

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    Launch control working on mine.....S5 with DTUK box running map 2 and 3......

    No issues .
     
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  30. syed123

    syed123 Active Member

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    Does the car still launch to the same revs as was before?
     
  31. silo24

    silo24 Member

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    Yes, as far as I recall...was around 3k I think....
     
  32. syed123

    syed123 Active Member

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    That's quite low? Thought it would be higher on the s4

    Mine used to rev to 3500rpm then when it launched it would throw you back and the feeling was like a slingshot.

    The feeling now is like the car is under strain when it accelerates on launch. Normal acceleration however is better than ever.

    Very weird tbh, I'm going to leave it for now as don't think can do anything.

    An earlier post mentioned that I may have exceeded a certain amount of launches in the past hence these symptoms.
     
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  34. silo24

    silo24 Member

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    Like I say, as far as I recall.....may have been closer to 4k....but either way, launch worked and the shifts had the harder edge to them that I had before the TCU upgrade.

    Not sure there is much benefit to launch now though with the box and the TCU tune in play.....
     
  35. Filipão

    Filipão Active Member Audi S4

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    I can't seem to find a way to order one TCU flash for S4 Avant (B9) online. Funny.
     
  36. q5man

    q5man Mythos Appreciator Team Mythos TFSI Owners Group Gold Supporter quattro Audi Q5

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    They aren’t available online yet, but @ABYSS can help or call them up on Monday.
     
  37. SwordfishCoupe

    SwordfishCoupe Member

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    Well, just ordered mine for the S4. Can't wait to try it.

    Sent from my SM-G960F using Tapatalk
     
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  38. SMI77

    SMI77 Australia Audi S4 Audi Avant Owner Group quattro

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    @cuk2u - being a very old manual man, Yep! miss the ability to downshift or jump gears.

    I believe ours is somewhere in the Land of Oz, en-route. I don't do waiting terribly well!!
     
    Last edited: Sep 15, 2018
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  39. Daggerit

    Daggerit Well-Known Member Team Floret Silver TFSI Owners Group Team V6 Audi S4 Audi Avant Owner Group quattro

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    For launch, mine has always been 3-3.5k revs. That makes sense to me as that’s where the peak torque is on the new S4 engines if I remember rightly.


    Sent from my iPhone using Tapatalk
     
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  40. cuke2u

    cuke2u Well-Known Member TFSI Owners Group saloon Audi A4 S-line owners group

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    Power and torque graph:
    wykres_power-525x600.jpg
     
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  41. ABYSS

    ABYSS Andrew - Diesel Tuning UK Site Sponsor Team Ara Blue Black Edition S3 Saloon

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    I have replied to your WhatsApp message :)

    as stated, theyre not available online yet hence the discount were offering :)
     
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  42. ABYSS

    ABYSS Andrew - Diesel Tuning UK Site Sponsor Team Ara Blue Black Edition S3 Saloon

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    some more feedback from an s4 Owner

    Ok Gents I just went for a brisk 20 mile drive on some fast A roads. I’ll reserve writing a full review until I’ve done a few hundred miles but I will say of the 5000 miles I’ve put on my car from new I think the last 20 I just did were the most enjoyable. I test drove a new Panamera 4S recently which ironically basically has the same 2.9L V6 engine in as the B9 S4/5 and my gearbox now feels and behaves like it did in the Porsche. Manual is now completely sublime, you can feel the extra torque in all driving modes and the changes are smoother both at low speed and when pressing on. I’ll report back again when I’ve done some more mileage but initial impressions are if you’re sitting on the fence about this don’t, just do it.
     
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  43. paul wev

    paul wev Member

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    Is this available for 2013 sq5 tdi (remapped)?


    SQ5
     
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