What you can check
- Check an Audi check engine light with a classic Bluetooth ELM327.
- Use the same VAG-aware path as Volkswagen, where the ECU supports it.
- Pay £4.99 a month only after the free scan works.
Audi
Audi is part of the same VAG family as Volkswagen in BTK-Auto. A3, A4 and Q5 are the usual UK examples. Extra VAG module targets are implemented for that family, and they still depend on the car, the ECU and the adapter.
The free Basic Scan is the engine-lamp read. It does not clear faults. Full Access is the paid layer for live data and supported module work. It is not an Audi coding tool and it does not sell one-click hidden features.
Some newer Audi control units expect manufacturer authorisation. Those protected jobs can stay outside the current app.