I started my own definitions file for my ATC 180hp TT quattro (8N0906018S or M), narrow band, 512k file. I was looking to see what was out there and what would be closest to work from.  In the process I made a spreadsheet based on the ETKA data for the Euro and US models. Sorry for the bad formatting, but if I paste it in here it should be searchable.


Region   Model   Engine   RPO   PN (8N0906018.)   Ver   SW   Bosch PN   Size   Notes
                           
US   TT   ATC   FWD   C               >>8N-Y-050000
US   TT   ATC   FWD   M               8N-Y-050001>>
US   TT   ATC   FWD   AD               ESP retrofit
US   TT   ATC   AWD   S      352751   0261206582   512k   
US   TT   ATC   AWD   M               ESP retrofit
US   TT   AMU      T               >>8N-1-005000
US   TT   AMU      AT               8N-1-005001>>8N-1-010000
US   TT   AMU      K      354572   0261206894      8N-1-010001>>8N-1-070000
US   TT   AMU      AN               8N-2-000001>>
US   TT   AWP      L               >>8N-1-070000
US   TT   AWP      AL            1024k   8N-2-000001>>
US   TT   AWP      BD         0261206439   1024k   2003+
US   TT   AWP      CM               
US   TT   AWP      CK               
US   TT   BEA      BB               >>8N-3-050000
US   TT   BEA      CL, CJ               8N-4-000001>>
                           
Euro   TT   AJQ   FWD   A               >>8N-Y-050000
Euro   TT   AJQ   FWD   AB               >>8N-Y-050000 + ESP retrofit
Euro   TT   AJQ   AWD   B               >>8N-Y-050000
Euro   TT   AJQ   AWD   AC               >>8N-Y-050000 + ESP retrofit
Euro   TT   AJQ   AWD   8L0906018J               8N-Y-050001>>
                           
Euro   TT   APX      F   0001      0261206105   512k   >>8N-Y-050000
Euro   TT   APX      AE      354178   0261206582      >>8N-Y-050000 + ESP retrofit
Euro   TT   APX      R               8N-Y-050001>> + EDL
Euro   TT   APX      8L0906018M            512k   8N-Y-050001>> + EDL + ESP retrofit
Euro   TT   APP      Q   0004   354510      512k   
                           
Euro   TT   AUQ,ARY   PR-8KA   8L0906018R               >>8N-1-070000
Euro   TT   AUQ,ARY   PR-8KB   8L0906018Q            1024k   >>8N-1-070000
Euro   TT   AUG, ARY   PR-0GU, 0GV, 0GW, 0GX   AM               8N-2-000001>>
Euro   TT   AUQ   PR-0GG, 7GE   AQ               8N-2-000001>>
Euro   TT   ARY   PR-0GG, 7GE   AQ               8N-2-000001>>
Euro   TT   BAM   PR-8KA, 0GV, 0GW, 0GX   AH               
Euro   TT   BAM   PR-8KB, 0GE, 7GE   H      360313   026120679   1024k   
Euro   TT   AUM   PR-8KB   AK               >>8N-1-070000
Euro   TT   AUM      AP               8N-2-000001>>
                           
                           
                           
   Leon         06A906032T   0003   352761         
   Leon   AUQ      06A906032HN      363908   0261207440   1024k   
   Ibiza               352176   0261206023   512k   156cv
   Ibiza   AYP      6K0906032AA      354562   0261207071   512k   150hp
                           
   A3         4B0907557B      358127   0261204806   1024k   
   A3   AMK      8N0906018J      360314   0261206794   1024k   2001
      AUM      06A906018HJ      362287   0261207436   1024k   2001
                           
   A4   ATW      4B0906018P   0006   352750   0261206537   512k   150hp
   Passat   ANB      4B0906018AG      352321   02612064534   512k   150hp
                           
US   Golf, Jetta      5spd   06A906032DL      354821, 360227   0261206890      2001
                           
      ARZ      06A906032AR            512k   150hp
      AVJ      8E0906018B   0003   360654   0261206868   1024k   

Sorry to hijack your thread.... Do you have the ori file for 8N0906018S ecu?

Is it a newer TT >2003?  I was concentrating on the older ones, I may not have gone far enough to cover all the MK1s.

Yes. I noticed when looking through ETKA that some of the ECU part numbers were dropped in favour of revised ones, so it might be worth looking from 2003 to the end of the model run in 2006.

TTQS