Audi A3 2004 to 2013 all keys lost requires 7th byte CS code via eeprom. Here is the trick. The job can be done by Autel IM508/IM608 with APB112 emulator directly via OBD without removing immo box.  It is easy … Continue reading Autel IM508/IM608 Find Audi A3 04-13 AKL 7th Byte via OBD