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Fiat 500 Magneti Marelli MM8GMB original ECU files

Every stock read of the Magneti Marelli MM8GMB in the Fiat 500, by engine. Ctrl+F your HW or SW number.

45 WinOLS map packs for the Fiat 500, from €54

EnginesIdentify the fileAll HW and SW numbers

Fiat 500 Magneti Marelli MM8GMB files

10 files €18 each · card · by e-mail

Fiat 500 Magneti Marelli MM8GMB engines

10 files across 2 engine variants. Listed most: 1.4 105hp, 6 files.

EngineCodeFiles
1.4 105hp6
1.4 16V 105hp4

How to identify your Fiat 500 Magneti Marelli MM8GMB file

How the numbers on this model with this ECU type start:

  • HW MM8GM… 10 of the 10 files with a HW number, 100%
  • SW 3M340… 6 of the 10 files with a SW number, 60%

A HW number alone does not pick the file: MM8GMBHW555 carries 6 SW versions here. Compare both numbers with your read.

Where do I find these numbers?

All Fiat 500 Magneti Marelli MM8GMB HW and SW numbers

2 HW numbers and 10 SW numbers, by engine. Beside each HW, how many SW versions it carries. A number opens a file that shows it.

1.4 105hp 1 HW · 6 SW
HWSW versions
MM8GMBHW5556 3M340A05 3M340C04 3M340D04 3M340G02 3M370B04 3M370H02
1.4 16V 105hp 2 HW · 4 SW
HWSW versions
MM8GMBHW5553 3M330C03 3M340D05 3M340G01
MM8GMBHW6251 3F426F04