Fiat Instant download
File type
Original File
Brand
Fiat
Car model
500
Hardware number
55270199
Software number
304AX310
Read with
FLEX
Inside the download
  • fca_marelli_8f3_obd_fullbackup_full_backup_20250122123631_f…774.512 bytes
  • fca_marelli_8f3_obd_fullbackup_full_backup_20250122123631_i…2.097.152 bytes
  • fca_marelli_8f3_obd_fullbackup_full_backup_20250122123631_e…8.192 bytes
  • ID.txt101 bytes

FIAT 500 MJD 8F3.X3 55270199 304AX310 DUMP

Original (stock) ECU file for the Fiat 500 (MJD 8F3.X3). HW 55270199 / SW 304AX310. Read with FLEX. Instant download after payment.

20,00€

  • Instant download — the file is available the moment payment clears.
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  • Read from a real unit — listed by the exact hardware and software number.

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About this file

Description

FIAT 500 MJD 8F3.X3 55270199 304AX310 DUMP is an original (stock) ECU file for the Fiat 500 fitted with the MJD 8F3.X3 engine control unit. It matches hardware number 55270199 and software number 304AX310. The file was read with FLEX and is supplied exactly as read from the unit, byte for byte.

Typical use: restoring a damaged or corrupted ECU to factory software, recovering after a failed flash, or as a clean base before any modification. Before writing the file, confirm that the hardware and software numbers printed on your ECU label match the numbers above; writing a file to a unit with different numbers can damage the ECU.

After secure checkout the file is available for instant download from your AutoECUFile account, and it stays there for later downloads. Need another version of 304AX310, or a file that is not listed? Send us a file request and we will source it for you.


HW: MJ8F3HW10L
SW: 304AX310
SW2: 304A
CAL: X310
FAL PN: 55270199
Tipi: 8F3.X3

FULL+MPC+EEPROM DUMP

Technical data

Specification

File typeOriginal File
BrandFiat
Car model500
Hardware number55270199
ECU modelMJD 8F3.X3
Software number304AX310
Read withFLEX
SKUECUFILE-769961079
Filefca_marelli_8f3_obd_fullbackup_full_backup_20250122123631_fullbackup.mmf 774.512 bytes
Filefca_marelli_8f3_obd_fullbackup_full_backup_20250122123631_int_flash.bin 2.097.152 bytes
Filefca_marelli_8f3_obd_fullbackup_full_backup_20250122123631_ext_eeprom.bin 8.192 bytes
FileID.txt 101 bytes
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