Hi!

I want to remove rear o2 sensors in my 2.7T 250KM BES with 4Z7907551N ECU.

I have already changed the values for:
CDKAT = 0
CWDLSAHK = 0
CDHSH = 0
CDHSHE = 0
CDLATV = 0
CDLASH = 0
CDLSH = 0
CDLSHV = 0
CLRHK = 5
CWKONLS = 17

Now, I have problem with location of the ESKONF, becouse XDF for 4Z7907551R has no value defined for ESKONF. In instruction available on S4wiki these are values "13 bytes starting at 0x10C75". I compared my values to the others bins form 2.7T and that's can not be there. I suspect that these can be values from 0x10C86, am I right? If yes, what i need to change to disable circuit diagnostics?

I changed the values. In the attachment you can see the changes

               From        To
0x10C86: 00            C0
0x10C87: F0            CF

Is it okay or did I do something wrong?

I have Tiptronic, not manual gearbox. 

Okay, I found ESKONF, but I still have doubts about changes in values.

CDHSH
CDHSHE
CDKAT
CDLASH
CDLATV
CDLSH
CWKONLS
CLAHSH2
CLAHSHE2
ESKONF

Are these all parameters to be changed or something omitted?

Yes I agree ESKONF begins at 0x10C86 for the 4Z7907551R and 4Z7907551N binaries. But the locations you want to change are 5 and 6 of 13 byte string and you are trying to change bytes 0 and 1. Review the Wiki thread again. So your string should look more like this 00 F0 B3 FC CC F3 FC FF AA FA FF FF FF  instead of 00 F0 B3 FC CC 33 F0 FF AA FA FF FF FF. I might have found this thread earlier if the search function worked. LOL Note my string is slightly different than yours but I have a BEL and your engine is a BES.