DIY: E9X M3 GTS DCT Flash

[Tbonem3]

Yes, I could do it if you wanted to visit me. You can reach me on IG or once you have PM priviledges.

[White_M3]

Hi Tbonem3. I noticed you were in SoCal and was wondering if you could lend a hand in flashing. I couldn't private message you since i just registered.

[Tbonem3]

Thanks 🤙

Actually, I think I put decent instructions, screenshots at least, of when I did it. Check my e90 thread in the owners/build forum here. Would have been fairly recently, earlier this year.

[M3AP]

Awesome. I appreciate the help my guy. Those two m3s you got are beautiful, I peeped the insta.

[Tbonem3]

Tbonem3 I got all the BMW tools installed and am gonna give it a go sometime soon. I have seen online that I need to import e89-Daten files into winKFP in order for it to communicate properly with the e9x ecu. Did you need to do this before flashing ? Appreciate the response on this old thread!

Yes, you need to load them up in winkfp. There are instructions out there, but it's pretty intuitive. The buttons tell you what to do basically. Then once loaded up, you can pick from like 20 different files, just pick the right one (have the #s handy) for updated u.s., updated euro, crt, gts.

[M3AP]

Tbonem3 I got all the BMW tools installed and am gonna give it a go sometime soon. I have seen online that I need to import e89-Daten files into winKFP in order for it to communicate properly with the e9x ecu. Did you need to do this before flashing ? Appreciate the response on this old thread!

[Tbonem3]

I have. I'd recommend just updating the U.S. tune and not bother with CRT or GTS. The update is pretty great, smoother, will get back into 1st a little faster after reversing. Plenty violent when you want it to be.

[M3AP]

Has anyone tried this recently? I’m thinking about trying it out.

[maicol76]

Any codes?

00CDB4
00CDB8
00CD9D
00CD9E
00CDB0
00D357
00E094
00E097

My M is a 2011 E92 M3 Euro ver., and the DCT HW NO. is 798. I updated it with GTS ver. 773.

When the symptoms occur, these codes appear. Then, when the symptoms disappear, the codes also clear themselves. In my limited understanding, I believe these codes are not the root cause but rather the result of some underlying issue.

The battery voltage is above 13V, and ground cable is ok.
I also came across a post suggesting that the issue might be due to the TCU booting late because of a delayed wake-up signal, meaning the TCU does eventually boot up, but the system fails to recognize it due to a timing gap.

Any advice or insight would be greatly appreciated.

% My M is a track-only vehicle, and I've been running it for several years with almost all components removed, without any issues.
However, after updating to the GTS software and doing a few track sessions, the problem suddenly started to appear, 2 years ago.

For reference, during the GTS tuning process, the upload occasionally gets interrupted, but when I resume it, When I resume it, it’s recognized normally and the update completes successfully.
I’m not sure if this might be related as well.

[0-60motorsports]

Hi, guys

After updating DCT stock software to GTS ver. about two years ago, I’ve occasionally experienced an issue where the transmission is not recognized.

Normally, when I unlock the doors, the gear selector light turns on and the gear position is displayed on the cluster.
However, sometimes these don't appear even after unlocking the door, and in this situation, even when I insert the key and turn on, nothing changes. No gear position is shown on the cluster, and the gear selector light stays off, and engine cannot be started.

If I turn ignition button OFF and ON once or several times, it starts to work again, and after that, the transmission operates perfectly during track driving.
The issue disappears for a while and then reappears occasionally.

While searching through this forum, I came across a thread mentioning that oil intrusion in the area where TCU is located could cause such an issue.
but assuming that’s not the case, what else could be the cause?
I’m not sure where or how to start troubleshooting, so I would appreciate any advice.

The wake-up signal voltage at the gear selector is always measured as normal under all conditions.

% ChatGPT mentioned that this issue sometimes happens with the GTS version of the software. I’m not sure if that’s true.

Any codes?

[maicol76]

Hi, guys

After updating DCT stock software to GTS ver. about two years ago, I’ve occasionally experienced an issue where the transmission is not recognized.

Normally, when I unlock the doors, the gear selector light turns on and the gear position is displayed on the cluster.
However, sometimes these don't appear even after unlocking the door, and in this situation, even when I insert the key and turn on, nothing changes. No gear position is shown on the cluster, and the gear selector light stays off, and engine cannot be started.

If I turn ignition button OFF and ON once or several times, it starts to work again, and after that, the transmission operates perfectly during track driving.
The issue disappears for a while and then reappears occasionally.

While searching through this forum, I came across a thread mentioning that oil intrusion in the area where TCU is located could cause such an issue.
but assuming that’s not the case, what else could be the cause?
I’m not sure where or how to start troubleshooting, so I would appreciate any advice.

The wake-up signal voltage at the gear selector is always measured as normal under all conditions.

% ChatGPT mentioned that this issue sometimes happens with the GTS version of the software. I’m not sure if that’s true.

[lynas]

Just to clarify on a 2012 UK car, do you need a DCAN cable flashed with edibiaslib for this to work? Does 7848442 require any additional coding after being flashed or is it good to go out of the box?

[MpowerE36]

Does someone try to update his GS40 ? I have the 00gs40.ipo error in comfort mode. Like dpaul I don't think it exists (same thing for 00gs40.prg).

https://www.m3post.com/forums/showthread.php?t=1812086

I also try in expert mode with the files loaded in WinKFP below (see picture) but I also have an error when I try to flash the prog.

[olza]

I can change final drive ratio, default program mode, launch control rpm and adjust step, shift rpms, braking downshift conditions, cutoff rpms and many more. For reflash you need just working bmw tools and winkfpt.

also im running full gts flash on my 135 with standard gws lever.

pm me if you interested.

[1984M3]

I noticed my notes I have another ZUSB number: 7848442 as a newer one than the 773.

Thanks! I'll have to see if I have that one in my files.