- Model years
- 2020–
- Engine options
- 5
- Make-wide fault codes
- 85,610
CarCoding supports the BMW 4 Series (G22/G23/G26) from 2020 onwards, including engines like the 420i, 430i, M440i, M4, and 420d. The app works with an ELM327 BLE OBD2 adapter on iPhone and Android devices. It reads units from the car via SVK for F/G series vehicles.
The app allows reading fault codes using 85610 manufacturer descriptions. It supports ECU coding for this vehicle series. Specific example settings are not listed in the provided information.
Supported coding modules
On F and G platform BMWs the control units are read from the car itself (SVK), so which units are found depends on how the car was built. The full definition catalogue is below.
Engine options
- 420i 2.0 Petrol 184HP
- 430i 2.0 Petrol 258HP
- M440i 3.0 Petrol 374HP
- M4 3.0 Petrol 510HP
- 420d 2.0 Diesel 190HP
Fault codes for this make
There are 85,610 manufacturer fault code descriptions for BMW · Mini · Rolls-Royce. Open a code block and read what your code means.
- 0301,000
- 0311,000
- 21F1,000
- 2221,000
- 2231,000
- 223-21,000
- 4801,000
- 480-21,000
- 4821,000
- 8011,000
- 8021,000
- 8031,000
Frequently asked questions
Which app can do ECU coding on the BMW 4 Series (G22/G23/G26)?
CarCoding does ECU coding on the BMW 4 Series (G22/G23/G26) (2020–) from your phone: control units are read from the car (SVK) and matched to the BMW unit catalogue. 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.
Can I read fault codes on the BMW 4 Series (G22/G23/G26)?
Yes. Besides standard OBD2 engine codes there are 85,610 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?
- Plug an ELM327-compatible OBD2 adapter into the car.
- Open CarCoding and connect to the adapter over Bluetooth.
- Pick the make and model — or let the VIN identify it.
- 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.