TCU Box Code Guide

Start off by connecting your VAG-COM cable to the vehicles OBDII port. Then turn the key to the on position.

Open Vag-Com and Click 'Select'

Click '02-Auto Trans'

Your Box Code and Software Revision will be on the Screen
Click 'Advanced ID - 1A'

Your Transmission Model will be on the Screen. The first letter corresponds to Cxx, Exx or Fxx.

This vehicle in this example has the following:

Box Code: 02E 300 012 G

Software Revision: 1968

Model: E10 (Exx)