Smart Forfour (454)

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

Model years
2004–2006
Make-wide fault codes
5,180

For Smart Forfour (454) from 2004–2006, CarCoding provides fault code reading with 5180 manufacturer fault code descriptions. The app runs on iPhone, Android and Windows and works with an ELM327 OBD2 adapter. For this vehicle, coding data is none, so no ECU coding settings are changed through CarCoding.

On Smart Forfour (454) 2004–2006, CarCoding reads fault codes and shows manufacturer fault code descriptions; 5180 descriptions are available. The app connects through an ELM327 OBD2 adapter on iPhone, Android and Windows. Coding data is none, so no ECU coding settings change.

Supported coding modules

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

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.

16 more blocks →

Frequently asked questions

What does CarCoding do on the Smart Forfour (454)?

CarCoding reads and clears fault codes and shows live data over OBD2 on the Smart Forfour (454) (2004–2006). No coding modules are defined for this vehicle.

Can I read fault codes on the Smart Forfour (454)?

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?

  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.