I bought from eBay a USB Interface VAG K+CAN including full software version 1.4 (China), this is meant to cover Audi A3 up to 2007. I have installed the software on the laptop connected to the car and all I want to do is check the error codes. Anyone get any idea how to use this software? I have succesfully connected to the ABS, stereo but I can not connect to the engine or do a general sweep for errors. I have tried to find a manual for the software but have found nothing useful. I have downloaded V2.5, V3.0, V3.6 and V5.5 of the software also and have had no real success with these either. I really do not want to accidently re-program anything, just want to read my own errors if their are any. Any help would be much apreciated.