Hello Nefmoto users
I haven't given up on setting up tunes for my me7.2 quite yet I had found that the Audi  uses the me7.1 which is nearly identical to the DME used in the 540i/x5/m62tu cars

I have also setup some dis assembly within IDA using x5 (me7.2 4.4 OLS/DAMOS) and an existing ida script ive found on the net. With this I was able to track back some maps and offsets in live code execution but was curious if anyone could potentially lend me anymore insight into how to track back words through IDA to track down my actual maps. I can see how they tie together in "live" execution of the software and can locate them in the hex code but don't exactly understand how to evaluate what format the information needs to be fed to the DME in


I am finding things like this:
Map 1x1 = Codeword in the diagnosis secondary air system
hex marker = 88 60 (found in my bin at offset 8614)

So if I want to disable the codeword diag SAP and the map is 1x1 do i change the bit post or pre the hex marker? (If I am making 0 sense please let me know)


So if the map is 1x1 and the Hex identifier is 2 bit sets (I think I have that wording proper) I might be thinking of Byte vs bit.... Is it the second bit set that is the map or the preceeding or post bit sets to control the map? Or is it just time for some trial and error?


here is the stuff I have collected thus far
https://github.com/zarboz/BMW-XDFs


here is the folder containing the OLS/Damos
https://github.com/zarboz/BMW-XDFs/tree/master/BMW%20ME7.2%20X5%204.4%20V8


any input would be gladly welcome. I don't know to much about tuning but am a software engineer so its just another kind of software to wrap my brain around. I have potentially identified a few maps but as its been -1/-5 degrees here I havent been out to install my backup DME to test any of the playing one could do in these maps

I have a few things collected in there including a a2l/damos for the DME in question as well as an OLS file for the DME in question. I don't speak german and have spent some time with google which has got me OK reading results.