Since I haven't been able to find them anywhere else in TDIClub, here's what my research has dug up for A4 02J gear ratios and what they various codes are used in. Hope this is helpful!
Code(s)______________Usage_Final__1st___2nd___3rd___4th___5th__
EHA..................1.8T__3.647_3.300_1.944_1.308_1.034_0.838
DBZ, DYP, EBN, ECW,
EGY, ENH, ENJ, FBX___1.8T__3.684_3.300_1.944_1.308_1.029_0.837
EBQ, EGX, FBW, FDS___1.8T__3.938_3.300_1.944_1.308_1.029_0.837
EFG, EGC, EGU, EMR,
ERS, EVR______________2.0__3.944_3.300_1.944_1.308_1.029_0.837
DZQ, EBP, EGT, EKG,
EMS, EZH, FBV_________2.0__4.235_3.778_2.118_1.360_1.029_0.837
DQY, EBJ, EGR_________TDI__3.389_3.778_2.118_1.360_0.971_0.756
DZC, EGF, EHC, EWW,
FBY, FCF______________VR6__3.389_3.625_2.071_1.474_1.038_0.844
EZK___________________VR6__4.235_3.778_2.118_1.360_1.029_0.837