Audi A4 (B8)

Supported fault codes and engine options for this vehicle. Fault code read and clear work over OBD2.

Model years
2007–2015
Engine options
8
Make-wide fault codes
14,282

CarCoding supports the Audi A4 (B8) produced between 2007 and 2015. It works with engine options like 1.8 TFSI 120HP, 2.0 TFSI 180HP, and 3.0 TDI 240HP. The app connects via an ELM327 BLE OBD2 adapter on iPhone or Android.

You can read and clear fault codes using 14282 manufacturer definitions. Live data is available for monitoring vehicle status. Note that ECU coding data is not available for this vehicle.

Supported coding modules

No coding modules are defined for this vehicle in CarCoding. Fault code read/clear and live data work over OBD2.

Engine options

Fault codes for this make

There are 14,282 manufacturer fault code descriptions for Audi · Porsche · Bentley · Lamborghini. Open a code block and read what your code means.

77 more blocks →

Frequently asked questions

What does CarCoding do on the Audi A4 (B8)?

CarCoding reads and clears fault codes and shows live data over OBD2 on the Audi A4 (B8) (2007–2015). No coding modules are defined for this vehicle.

Can I read fault codes on the Audi A4 (B8)?

Yes. Besides standard OBD2 engine codes there are 14,282 manufacturer fault code descriptions for this make group; you can read and clear them.

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.

Related pages

Get CarCoding

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

The app is free to download.