Marelli control unit
Marelli IAW 5SF
IAW 5SF is a Marelli control unit that CARTESIAN recognises from the content of its file, whatever tool read it. It is listed for 3 vehicle brands (Alfa Romeo, Fiat, Lancia). The archive holds original files for it, collected since October 2026.
- Maker
- Marelli
- Vehicle brands
- 3
- Original files
- in the archive
- Checksum
- corrected on save
- Opening the unit
- Low
- Last file added
- October 2026
Vehicles
Listed for Alfa Romeo, Fiat, Lancia.
Most seen in the archive: Fiat Punto 1.2i, Fiat Punto, Fiat 500 / 595 / 695, Fiat 500/595/695, Fiat Grande Punto, Fiat PUNTO 2, Ford Ka.
What CARTESIAN does with this unit
The solutions CARTESIAN offers for a file of this unit are those the file itself supports: DPF, EGR, AdBlue, lambda, flaps, start/stop, speed limiter, hot start fix and fault codes one by one by name. The app lists only what the opened file supports and refuses what it cannot change exactly.
Checksum: corrected automatically on every save, so the file is ready to write with your own tool.
Back to the original: with the archive's original file a modified unit can be returned to stock, and History keeps the original of every job you process.
Original files in the archive
The archive holds original files of this unit, collected since October 2026 and last added in October 2026. Search them in your account or in the app by hardware or software number, or hand it the file you read and the closest originals are suggested; downloads count against your plan's daily allowance.
| Hardware | Software |
|---|---|
| IAW5SFHW401 | IAW5SFHW401 |
| 51899832 | 8823Z23 |
| IAW5SFHW300 | 0813L45 |
| IAW5SFHW300 | IAW5SFHW300 |
| IAW5SFHW401 | 1308560 |
| IAW5SFHW401 | 1308U60E |
| 51896774 | 8825ZL25 |
- Typical file size
- 832.00 KB, 512.00 KB, 576.00 KB
- Fuel
- petrol 87%, diesel 13%
- Brands in the archive
- Fiat, Ford
Opening the unit: low difficulty
- Ordinary circuit board in a small cast aluminium case, no gel.
- Boot mode needs one or two small contacts on the board; remove any bridge before refitting.
- Many versions can be read through the connector without opening.
Advice: If you open it, do not force the cover, keep the power supply stable while you work, and reseal it afterwards.
General information: units with the same name can differ. Follow your tool's connection guide.
Related Marelli units
Open a Marelli IAW 5SF file in CARTESIAN
Download the app, sign in with your e-mail and open the file you read: the unit is recognised from its content and the solutions it supports are listed.