Variant 1
ECU- Catalog engine
- 1400 16V 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M340D05
- ECU HW
- MM8GMBHW555
- SW upgrade
- 50045529
- Calibration
- MM8GMBHW555_3M340D05_50045529
FIAT · MM8GMB ECU · diesel
FIAT 500 MM8GMB tuning files
The FIAT 500 on the MM8GMB, mapped from stock file to finished result. Across the matched variants stock power runs from 105 to 105 HP. On this diesel, expect the complete diesel toolset — from Stage work to the common delete requests. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Solutions that apply to the MM8GMB on this diesel platform. The exact set depends on the specific engine and software version.
Engine variants & ECU software
10 distinct variants for the FIAT 500 on the MM8GMB ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 1400 16V 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M340G01
- ECU HW
- MM8GMBHW555
- SW upgrade
- 55240596
- Calibration
- MM8GMBHW555_3M340G01_55240596
Variant 3
ECU- Catalog engine
- 1400 16V 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3F426F04
- ECU HW
- MM8GMBHW625
- SW upgrade
- 50047882
- Calibration
- MM8GMBHW625_3F426F04_50047882
Variant 4
ECU- Catalog engine
- 1400 16V 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M330C03
- ECU HW
- MM8GMBHW555
- SW upgrade
- 55240597
- Calibration
- MM8GMBHW555_3M330C03_55240597
Variant 5
ECU- Catalog engine
- 1400 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M340D04
- ECU HW
- MM8GMBHW555
- SW upgrade
- 53123084
- Calibration
- MM8GMBHW555_3M340D04_53123084
Variant 6
ECU- Catalog engine
- 1400 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M370B04
- ECU HW
- MM8GMBHW555
- SW upgrade
- 55240598
- Calibration
- MM8GMBHW555_3M370B04_55240598
Variant 7
ECU- Catalog engine
- 1400 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M370H02
- ECU HW
- MM8GMBHW555
- SW upgrade
- 50045528
- Calibration
- MM8GMBHW555_3M370H02_50045528
Variant 8
ECU- Catalog engine
- 1400 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M340A05
- ECU HW
- MM8GMBHW555
- SW upgrade
- 50045524
- Calibration
- MM8GMBHW555_3M340A05_50045524
Variant 9
ECU- Catalog engine
- 1400 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M340C04
- ECU HW
- MM8GMBHW555
- SW upgrade
- 53123082
- Calibration
- MM8GMBHW555_3M340C04_53123082
Variant 10
ECU- Catalog engine
- 1400 105HP
- Controller brand
- MAGNETI MARELLI
- ECU
- MM8GMB
- Stock power
- 105 HP
- ECU SW
- 3M340G02
- ECU HW
- MM8GMBHW555
- SW upgrade
- 50045525
- Calibration
- MM8GMBHW555_3M340G02_50045525
Related vehicles
Other vehicles built on the MM8GMB 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 MM8GMB?
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 MM8GMB ECU software on this model?
Yes — the FIAT 500 on the MM8GMB 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.