Audi a3 2004 problem
 

On a audi a3 2004. if not could you let me know the ones that do and will they let me clear a check engine indicator......

5054A maybe can help you
 

You can try the 5054A VW Audi diagnostic tool .

The VAS 5054A is a universal diagnostic interface for the vehicles of the Volkswagen Group and all OBD vehicle systems from other manufacturers.
The integrated Bluetooth interface connects the vehicle with a notebook, desktop PC or test system.
No cables are needed for vehicle diagnostics using the VAS 5054A.
The range of the wireless Bluetooth connection is 5 to 10 meters, depending on the environment and the type of Bluetooth adapter used on the PC side.
The Serial Port Profile (SPP) is used for data transfer via Bluetooth. Different Bluetooth security levels are supported.