Works with VAG cars start from year 2005 with CAN gateway.
Any third party ELM327 Bluetooth OBD adapter can be used for this.
except some models:
i.e. Skoda Fabia, VW Polo, VW Lupo to year 2009
ELM327 compatible Bluetooth adapter must be used
1. Plug ELM327 to car OBDII connector
2. Run software on your Smart phone
Wait few seconds and all errors in all electronic systems will be erased.
Some faults cannot be cleared (such as internal ECU faults) and the control module may explicitly refuse. Be aware, clearing fault Codes does not fix the problem that caused the fault!