- Model years
- 2018–
- Engine options
- 5
- Make-wide fault codes
- 5,180
CarCoding is available for iPhone, Android, and Windows and works with an ELM327 OBD2 adapter. For the Mercedes-Benz CLS (W257) with model years from 2018 onward, the app does not have coding data, so ECU coding cannot be performed. This means no vehicle settings can be changed via coding on this model.
CarCoding can read and clear fault codes on the Mercedes-Benz CLS (W257) from 2018 onward using an ELM327 OBD2 adapter. The app includes 5180 manufacturer fault code descriptions for this vehicle. Live data can also be viewed in the app.
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
- CLS 350 2.0 Petrol 299HP
- CLS 450 3.0 Petrol 367HP
- AMG CLS 63 S 4.0 Petrol 612HP
- CLS 220d 2.0 Diesel 194HP
- CLS 400d 3.0 Diesel 330HP
Fault codes for this make
There are 5,180 manufacturer fault code descriptions for Mercedes-Benz · Smart. Open a code block and read what your code means.
Frequently asked questions
What does CarCoding do on the Mercedes-Benz CLS (W257)?
CarCoding reads and clears fault codes and shows live data over OBD2 on the Mercedes-Benz CLS (W257) (2018–). No coding modules are defined for this vehicle.
Can I read fault codes on the Mercedes-Benz CLS (W257)?
Yes. Besides standard OBD2 engine codes there are 5,180 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, Android and Windows 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.