Audi ECU Coding App

CarCoding enables ECU coding on Audi vehicles using an iPhone or Android phone paired with an ELM327 BLE OBD2 adapter. The app supports 81 Audi models in its catalog, with coding data available for 44 of them. This allows users to modify vehicle settings directly from their mobile device.

Vehicles with coding
44
Vehicles in catalogue
81
Manufacturer fault codes
14,282

Users can adjust various features such as lane keeping assist, headlight washer, and easy entry seat movement. Other configurable options include front parking sensor automatic activation, marker light, and adaptive light menu in MMI. The app also supports seat ventilation adjustments and rear wiper settings.

Examples of codeable settings

Models with coding data

Audi — all supported models →

Frequently asked questions

Which app does ECU coding on Audi vehicles?

CarCoding does ECU coding on Audi vehicles from your phone; coding data exists for 44 vehicles. An ELM327-based OBD2 adapter with Bluetooth Low Energy (BLE) is all you need; the app runs on iPhone and Android and is free to download.

Which Audi models can be coded?

Some of the models with coding data: A1 (2010-2014) (2010–2014), A1 (2015-2019) (2015–2019), A1 Sportback (GB) (2018–), A3 (8P) (2003–2013), A3 (8V) (2012–2020), A3 (8Y) (2020–). The full list is on this page.

Which adapter do I need?

An ELM327-based OBD2 adapter with Bluetooth Low Energy (BLE) is all you need; the app runs on iPhone and Android and is free to download.

How do I start?

  1. Plug an ELM327-compatible OBD2 adapter into the car.
  2. Open CarCoding and connect to the adapter over Bluetooth.
  3. Pick the make and model — or let the VIN identify it.
  4. Read fault codes; on supported vehicles, open the module settings.

Get CarCoding

Connect your ELM327 adapter, read fault codes, and browse module settings on supported vehicles.

App Store Google Play

The app is free to download.