Variant 1
ECU- Catalog engine
- 1300 95HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MJ9DF
- Stock power
- 95 HP
- ECU SW
- 4E43
- ECU HW
- MJ9DFHW000
- SW upgrade
- 4E43F520
- Calibration
- 4E43F520
FIAT · MJ9DF ECU · diesel
FIAT 500L MJ9DF tuning files
Tuning file coverage for the FIAT 500L running the MJ9DF ECU. Stock output across the matched variants spans 95–95 HP. It is a diesel platform, so the full diesel solution range is on the table. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Applicable work for the MJ9DF on this diesel. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
6 distinct variants for the FIAT 500L on the MJ9DF ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 1300 95HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MJ9DF
- Stock power
- 95 HP
- ECU SW
- 4A45
- ECU HW
- MJ9DFHW000
- SW upgrade
- 4A45X104
- Calibration
- 4A45X104
Variant 3
ECU- Catalog engine
- 1300 95HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MJ9DF
- Stock power
- 95 HP
- ECU SW
- 4F42
- ECU HW
- MJ9DFHW000
- SW upgrade
- 4F42X125
- Calibration
- 4F42X125
Variant 4
ECU- Catalog engine
- 1300 95HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MJ9DF
- Stock power
- 95 HP
- ECU SW
- 4B45
- ECU HW
- MJ9DFHW000
- SW upgrade
- 4B45X110
- Calibration
- 4B45X110
Variant 5
ECU- Catalog engine
- 1300 95HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MJ9DF
- Stock power
- 95 HP
- ECU SW
- FF96
- ECU HW
- MJ9DFHW002
- SW upgrade
- FF96X550
- Calibration
- FF96X550
Variant 6
ECU- Catalog engine
- 1300 95HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MJ9DF
- Stock power
- 95 HP
- ECU SW
- 4E43
- ECU HW
- MJ9DFHW000
- SW upgrade
- 4E43X220
- Calibration
- 4E43X220
Related vehicles
Other vehicles built on the MJ9DF controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the FIAT 500L on the MJ9DF?
Stage 1, Stage 2, DPF Off, EGR Off, Swirl Flaps Off, Lambda / O2, MAF Off, TVA, NOx Off, AGS, Readiness, Start/Stop Off, Oil Pressure, Limp Mode Off. The exact set depends on the specific engine and software version.
Do you cover the MJ9DF ECU software on this model?
Yes — the FIAT 500L on the MJ9DF ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.