Hi all,

I searched but nothing came up in the forums. I need an XDF to tune for the following:
HW: 0261207939
SW: 1037366446
SW upg.: 8E0909518AF 0002

TIA

it's wideband but the file size is 1024kb. Here is the file as well. It may be named stock, but it's not.

you sir, are a legend. Thank you very much. I didn't know it was cross flashable.

I did look back and confirmed that my 2003 late split A4 B6 with 1024kb bin , wideband 02 did start life as a 8E0909518AF ECU that I cross-flashed to 8E0909518AK. If you had entirely different ECU and engine hardware (such as from a transverse 1.8T), cross flashing an incompatible .bin would likely brick your ECU and would be difficult to repair!

Only issue I remember is that when I first flashed the stock 8E0909518AK .bin, it would start but idled and ran really rough,fuel trims were maxed out. I tried re-flashing stock bin several times with same problem, then flashed the community stage 1 tuned 8E0909518AK .bin and it ran fine ever since, no fuel trim issues. I think that dozens of other people have used same stock .bin without problem so it might not be any issue. If you want to start fresh with a stock bin and do have trouble with 8E0909518AK .bin running well, you might search the forums to see if there is a different source for the 8E0909518AK-0003 .bin. Also read and save a copy of your original 8E0909518AF .bin so you can always revert to it if needed.The later 8E0909518BC .bin should also be cross flashable to same 1024kb A4 B6 ECU hardware but I do not know if it has a xdf that it so well defined. 

Flash the 368072 AK file. XDF is the one I like to use. I added a internal memory checksum code fix to the xdf if youre going to run launch control as well as a modded eeprom file. If you dont use these with the LC script you will get a no start condition after a couple ignition cycles.