The most reliable solution is to purchase an official diagnostic interface from the manufacturer. For VAG vehicles, the leading professional tools are and ODIS (Offboard Diagnostic Information System) from Volkswagen . These tools offer:
[ Laptop / PC ] <===> [ FTDI / PIC18F25K80 Chip ] <===> [ OBD2 Port ] <===> [ Vehicle ECU / Cluster ] Core Capabilities & Special Functions vag k can commander 14 full china download top