Variant 1
ECU- Catalog engine
- 1400 16v Multiair 165HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMW
- Stock power
- 165 HP
- ECU SW
- 3631005A
- ECU HW
- MM8GMWHW640
- SW upgrade
- 55255827
- Calibration
- MM8GMWHW640_3631005A_55255827
FIAT · MM8GMW ECU · petrol
FIAT 500 MM8GMW tuning files
The FIAT 500 on the MM8GMW, mapped from stock file to finished result. Across the matched variants stock power runs from 165 to 165 HP. There are 5 distinct variants on file for this combination. On this petrol engine the focus is sharper throttle and useful, repeatable gains. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
Applicable work for the MM8GMW on this petrol. The available set firms up once the exact engine and software are known.
Stage 1Stage 2Swirl Flaps OffLambda / O2OPF/GPF OffDPF OffEGR OffMAF OffTVANOx OffAGSReadinessStart/Stop OffOil PressureLimp Mode Off
Engine variants & ECU software
5 distinct variants for the FIAT 500 on the MM8GMW ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 1400 16v Multiair 165HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMW
- Stock power
- 165 HP
- ECU SW
- 3635053A
- ECU HW
- MM8GMWHW640
- SW upgrade
- 52048816
- Calibration
- MM8GMWHW640_3635053A_52048816
Variant 3
ECU- Catalog engine
- 1400 16v Multiair 165HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMW
- Stock power
- 165 HP
- ECU SW
- 3635054A
- ECU HW
- MM8GMWHW640
- SW upgrade
- 52048815
- Calibration
- MM8GMWHW640_3635054A_52048815
Variant 4
ECU- Catalog engine
- 1400 16v Multiair 165HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMW
- Stock power
- 165 HP
- ECU SW
- 3631004A
- ECU HW
- MM8GMWHW640
- SW upgrade
- 51969912
- Calibration
- MM8GMWHW640_3631004A_51969912
Variant 5
ECU- Catalog engine
- 1400 165HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMW
- Stock power
- 165 HP
- ECU SW
- 30361000
- ECU HW
- MM8GMWHW641
- SW upgrade
- 55235909
- Calibration
- MM8GMWHW641_30361000_55235909
Related vehicles
Other vehicles built on the MM8GMW controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the FIAT 500 on the MM8GMW?
Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off, DPF Off, EGR Off, 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 MM8GMW ECU software on this model?
Yes — the FIAT 500 on the MM8GMW 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.