DCT GT Flash

[ripper0306]

post to follow !

[SYT_Shadow]

Originally Posted by DaZuc

-Load Winkpf software

-Press (F1) comfort mode

-Press (F3) Update ZUSB

-Choose ECU GS40

-Press (F2) Choose ZUSB

-Choose ECU GS40 and next to it there will be ZB-Numbers..Find 7845773

-Click ok

-If you have done it correctly so far you will see at the top Assembly Identification number 7845773 (M3 GTS assembly line file) and it will automatically reference the software 7845773

-Press (F4) Enter VIN ( make sure you double check you have entered the correct VIN numbers)

-click ok

-Press DONE (F8)

-Press (F3) Program

-Pop up window will say you can code the ECU 63 more times, click ok

-Flashing begins and you will have to wait till it reaches 100%

-once it reaches 100% it will pop up again saying you have 62 more times to program the ECU, click ok

-Programming again starts, wait until this reaches 100%

-If everything is done correctly, then you will get a pop up screen saying programming done, click ok

Thank you!

It was about time someone posted the DIY

Yes, $200 from a vendor is not much, but for people that have gone through the -massive- hassle of getting coding to work, this is the next thing to do!

[Joe@TopGearSolutions]

Originally Posted by ChiTownCoding

Are you guy using DCAN or ICOM when flashing?

It can be flashed just using a KDCAN cable.

[Locksmythe]

This flash is the 90ms shift timing that will burn out a retail model DCT?

[DaZuc]

Originally Posted by Locksmythe

This flash is the 90ms shift timing that will burn out a retail model DCT?

Correct

[The-Traveler]

I keep reading about three different levels existing for these tunes. From what I've gathered the default 5773 is 90ms. Not sure what the newer 7848442 is set to.

To slow it down, can't you just use S4 instead of S5?
Are there ZB numbers for 100ms?

I'm not convinced that these third party tuning companies have actually modified the firmware.

[ccdre]

Originally Posted by The-Traveler

I'm not convinced that these third party tuning companies have actually modified the firmware.

Furthermore, do we know the ZB 7848442 is in fact GTS software/profile? I find it odd that a true GTS would default to D2 driving mode.

[The-Traveler]

I just flashed it and so far I love it! The only issue is that the auto start stop feature isn't working. Does anyone know how to fix that?

[DaZuc]

Originally Posted by The-Traveler

I just flashed it and so far I love it! The only issue is that the auto start stop feature isn't working. Does anyone know how to fix that?

Check the IHKA module code it with a blank man/ or default code it.

[BMW3DK]

hello,
any vendor that can do this by remote connection?
(2012.5 M3 DCT)

thx
Chris

[The-Traveler]

Originally Posted by DaZuc

Check the IHKA module code it with a blank man/ or default code it.

No luck. I think the firmware doesn't support it. I would like to do a binary comparison of the various flashes to see if in the 2011MY extra code was added for aSS and if it can be transplanted into the GTS flash or vice versa.

[SYT_Shadow]

Originally Posted by SYT_Shadow

Thank you!

It was about time someone posted the DIY

Yes, $200 from a vendor is not much, but for people that have gone through the -massive- hassle of getting coding to work, this is the next thing to do!

Quoting myself: did it this past weekend during a track day.

It is a night and day difference. OEM GTS software FTW!! I can use D1 now when I want to put around and it's much smoother than the old D3 yet is just as fast.

Driving it on the track it is also significantly better. I thought the old software was pretty damn fast already, but this is just icing on the cake

By the way, I am not concerned about this being bad for the tranny. BMW used the same model tranny for both the GTS and the regular M3, so why worry?

[tom @ eas]

Originally Posted by SYT_Shadow

Quoting myself: did it this past weekend during a track day.

It is a night and day difference. OEM GTS software FTW!! I can use D1 now when I want to put around and it's much smoother than the old D3 yet is just as fast.

Driving it on the track it is also significantly better. I thought the old software was pretty damn fast already, but this is just icing on the cake

By the way, I am not concerned about this being bad for the tranny. BMW used the same model tranny for both the GTS and the regular M3, so why worry?

GTS utilizes an additional cooler and higher fluid capacity. Haven't experienced any negatives from the track guys though as far as longevity.

[dparm]

Originally Posted by tom @ eas

GTS utilizes an additional cooler and higher fluid capacity. Haven't experienced any negatives from the track guys though as far as longevity.

Were the clutch packs any different?

[tom @ eas]

Originally Posted by dparm

Were the clutch packs any different?

No idea, haven't seen any failures (outside of warranty) to date.

[SYT_Shadow]

Originally Posted by tom @ eas

GTS utilizes an additional cooler and higher fluid capacity. Haven't experienced any negatives from the track guys though as far as longevity.

Thanks for the info!

fortunately I have the do88 cooler so I should be all set!

[///Mobbin]

Does anyone have a battery power supply they like to use while flashing?

I read that for another vehicle BMW recommended at least a 45A capable supply for this.

[///Mobbin]

Originally Posted by BimmerGeeks

Battery supply shouldn't be needed if your battery is in good shape. The flash doesn't take long..

Good to know, thank you!

Has anyone compared ZB No. 7845773 and 7848442?

edit: FWIW 7848442 did not work out well for this individual - DCT Update Fail

[KawBoy]

Originally Posted by ///Mobbin

Good to know, thank you!

Has anyone compared ZB No. 7845773 and 7848442?

edit: FWIW 7848442 did not work out well for this individual - DCT Update Fail

I was going to try 7848442 this weekend. Glad I saw your post! Thanks man!

[///Mobbin]

I just wanted to share this flashing video, not our car or this tune but good example of how this is done:

[///Mobbin]

Anyone know how to get past this error?

[///Mobbin]

Got it sorted! Just needed to update the files in: C:\EC-APPS\NFS\DATA\GDATEN
With those that came with the updated daten files.

Thanks all for the helpful instructions!