[dt99]

Originally Posted by ivanchen1211

Try flash this
I used a 2.5si VIN and there are over 3 hundreds of stock tune
I used one of them and modified power class from 01 to 00
Can you share your VIN?
By the way E85 Z4 does not have a CAS, it uses the old EWS
Also, the ChatGPT above was just giving out useless nonsense info...

edit: I have updated the link with 7581341 file that stated 2.5si ECE with modified power class from 01 to 00

https://drive.google.com/file/d/148G...ew?usp=sharing

Try pull off Disa valve cable after flash, if it is successful, DISA valve error will pop up.

Huge thanks for your help on this!

Just flashed that file but get the 2FA4 error, do you have any ideas what it might be:



FYI I've been at this for hours/days trying to work out which power class byte to change and tried a good few .bin files which all give me the 2FA4; which byte did you change for the power class?

This has been a massive learning curve for me!

EDIT:
It doesn't look like I can send you a PM to share my VIN

[ivanchen1211]

Originally Posted by dt99

Huge thanks for your help on this!

Just flashed that file but get the 2FA4 error, do you have any ideas what it might be:

Attachment 3708070

FYI I've been at this for hours/days trying to work out which power class byte to change and tried a good few .bin files which all give me the 2FA4; which byte did you change for the power class?

This has been a massive learning curve for me!

EDIT:
It doesn't look like I can send you a PM to share my VIN

What's your original MSV70 ZB number?

Also, did the error pop up after you clear the error?

Have you flashed RSA delete first? Before you flash 0da you have to flash RSA delete first

The power class byte for MSV70 is 0x2191

[dt99]

Originally Posted by ivanchen1211

What's your original MSV70 ZB number?

Also, did the error pop up after you clear the error?

Have you flashed RSA delete first? Before you flash 0da you have to flash RSA delete first

The power class byte for MSV70 is 0x2191

Currently I'm running this .0da file:


For info here is a picture of my DME:


Yes I have flashed the RSA delete, and have tried clearing the code. Might be worth trying the RSA delete again and starting from scratch?

EDIT: As a quick test I downloaded the .bin for the 2.5i tune I'm running, converted that back to an .0da file and flashed that to the DME and only had the 2FA3 error so does that suggest the RSA delete is all working as it should?

[ivanchen1211]

Originally Posted by dt99

Currently I'm running this .0da file:
Attachment 3708075

For info here is a picture of my DME:
Attachment 3708076

Yes I have flashed the RSA delete, and have tried clearing the code. Might be worth trying the RSA delete again and starting from scratch?

EDIT: As a quick test I downloaded the .bin for the 2.5i tune I'm running, converted that back to an .0da file and flashed that to the DME and only had the 2FA3 error so does that suggest the RSA delete is all working as it should?

OK, It turns out the 2.5i and 2.5si both have power class byte as 02

Theoretically you should just flash the 7581341.0da without having changing anything
https://drive.google.com/file/d/1x7L...ew?usp=sharing

How long did it take for you to do the RSA delete? was it successful?
Here is the RSA delete file zip for convience
https://drive.google.com/file/d/1-Gs...ew?usp=sharing

Try factory reset with Factory Coding profile with NSCExpert (I assume you know how)

Also do codierdaten_lesen after factory coding.

Read what is the value of OLULCODIERUNG



Also, go to INPA and choose MSV70, go to F3 AIF and check what is your DME assembly no. best if you can have a screenshot or photo of this page.

[dt99]

Just flashed the 7581343 and so far so good! No 2FA4 error! Not had a chance to take it for a drive yet so will update after that but looking very promising!

I was trying to run the 7581342 file before which was giving the error - is that not a 2.5si file?

Out of interest how do you know which file is for which engine spec as most of them on bimmerlabs have no details on them?

Super grateful for your help on this!

EDIT: Looks like previous post was just updated with a different file number, but won't get round to trying that tomorrow.

[ivanchen1211]

Originally Posted by dt99

Just flashed the 7581343 and so far so good! No 2FA4 error! Not had a chance to take it for a drive yet so will update after that but looking very promising!

I was trying to run the 7581342 file before which was giving the error - is that not a 2.5si file?

Out of interest how do you know which file is for which engine spec as most of them on bimmerlabs have no details on them?

Super grateful for your help on this!

EDIT: Looks like previous post was just updated with a different file number, but won't get round to trying that tomorrow.

I removed the earlier post link cause I was not sure if 7581343 is really for 2.5si. Since you flashed it you can try pull the disa cable off and see if there's error code for disa(some model came with one disa valve, pull the one that wasn't on the car, my Z4 3.0i had 0 disa so I can pull either one, my friend's 523 have big DISA by default so have to pull small DISA to test if it throws code).

I've compared the bin file with 7581341(ZB Number 7581342) and they look almost identical. All I can sure 7581341 is for 2.5si is from the note of rjahl and bimmerlabs.

Please see if you can share the ZB number from INPA and power class in 6MBOT, that will definitely solve the puzzle

[ivanchen1211]

Update, 7581343 is for 2.5si but in realoem it stated
"For vehicles with Power reduction S843A=Yes"
(7581343=updated version of 7573404)

Wonder if your FA/VO has 843 option?

So ZB number 7581342(updated 7573402) looks more promising.

Can you share your car build date from realoem(Enter the vin and let it detect)?

[dt99]

Originally Posted by ivanchen1211

Update, 7581343 is for 2.5si but in realoem it stated
"For vehicles with Power reduction S843A=Yes"
(7581343=updated version of 7573404)

Wonder if your FA/VO has 843 option?

So ZB number 7581342(updated 7573402) looks more promising.

Can you share your car build date from realoem(Enter the vin and let it detect)?

Attachment 3708304

So, I've got the NCSExpert info which is below:



The info from INPA is below:



When I flash this file I get the 2FA4 error:



Here is my DME info from realOEM based on my VIN (build date is 07/2006, RHD, EUR):



I'm assuming because I have an assembly number of 7871824 and this matches one of the non-low compression engine DME part numbers I have a non-low compression engine?

Again, thanks for your help! Does this give any indication as to what the 2.5si tune options are?

[ivanchen1211]

Originally Posted by dt99

So, I've got the NCSExpert info which is below:

Attachment 3708457

The info from INPA is below:

Attachment 3708458

When I flash this file I get the 2FA4 error:

Attachment 3708459

Here is my DME info from realOEM based on my VIN (build date is 07/2006, RHD, EUR):

Attachment 3708465

I'm assuming because I have an assembly number of 7871824 and this matches one of the non-low compression engine DME part numbers I have a non-low compression engine?

Again, thanks for your help! Does this give any indication as to what the 2.5si tune options are?

Can you check your FA/VO in NSCExpert? Is there $843 or $858? And what is the car model in FA/VO?Like BU11

that will affect the coding, it's strange that OLUCODIERUNG is 00, should have a reason.

[ivanchen1211]

Originally Posted by dt99

So, I've got the NCSExpert info which is below:

Attachment 3708457

The info from INPA is below:

Attachment 3708458

When I flash this file I get the 2FA4 error:

Attachment 3708459

Here is my DME info from realOEM based on my VIN (build date is 07/2006, RHD, EUR):

Attachment 3708465

I'm assuming because I have an assembly number of 7871824 and this matches one of the non-low compression engine DME part numbers I have a non-low compression engine?

Again, thanks for your help! Does this give any indication as to what the 2.5si tune options are?

I found that I have been looking at wrong address!
0x2191 is for MSV80 and I messed it up in my note

4D50 is the address for MSV70, and according to your ZB num yours is 00


I've modified 7581342 to 00 correctly this time
Should work!
https://drive.google.com/file/d/1J1J...ew?usp=sharing

[dt99]

Originally Posted by ivanchen1211

I found that I have been looking at wrong address!
0x2191 is for MSV80 and I messed it up in my note

4D50 is the address for MSV70, and according to your ZB num yours is 00


I've modified 7581342 to 00 correctly this time
Should work!
https://drive.google.com/file/d/1J1J...ew?usp=sharing

That's worked! That's amazing!

No error codes (not even the 2FA3 one). Drives nicely. Definitely faster!

Thank you so so much!

This might be able to help out quite a few 2.5i owners looking to fit a 3 stage manifold (I've seen a few posts on it in this thread and other forums).

[ivanchen1211]

Originally Posted by dt99

That's worked! That's amazing!

No error codes (not even the 2FA3 one). Drives nicely. Definitely faster!

Thank you so so much!

This might be able to help out quite a few 2.5i owners looking to fit a 3 stage manifold (I've seen a few posts on it in this thread and other forums).

Great! Glad it helped. Thanks for all the people worked on the RSA delete and creating bimmerlab so we can upgrade our N52 horse power for free!

Remember to reset the dme adaptation!

[ivanchen1211]

Originally Posted by dt99

That's worked! That's amazing!

No error codes (not even the 2FA3 one). Drives nicely. Definitely faster!

Thank you so so much!

This might be able to help out quite a few 2.5i owners looking to fit a 3 stage manifold (I've seen a few posts on it in this thread and other forums).

Btw you can try flash 2.5si transmission as well, maybe there's difference.

Set the protocol to KWP2000 in winkfp before flashing