FIAT · MJ9DF ECU · diesel

FIAT 500X MJ9DF tuning files

Everything we work with on the FIAT 500X fitted with the MJ9DF. Stock output across the matched variants spans 95–95 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.

Upload your file →All 500X coverage

Available solutions

Solutions that apply to the MJ9DF on this diesel platform. The exact set depends on the specific engine and software version.

Stage 1 Stage 2 DPF Off EGR Off Swirl Flaps OffLambda / O2MAF OffTVANOx OffAGSReadinessStart/Stop OffOil PressureLimp Mode Off

Engine variants & ECU software

29 distinct variants for the FIAT 500X on the MJ9DF ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF94
ECU HW: MJ9DFHW002
SW upgrade: FF94X540
Calibration: FF94X540

Variant 2

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: NV10
ECU HW: MJ9DFHW002
SW upgrade: NV10E420
Calibration: NV10E420

Variant 3

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 544B
ECU HW: MJ9DFHW000
SW upgrade: 544BL232
Calibration: 544BL232

Variant 4

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: N083
ECU HW: MJ9DFHW001
SW upgrade: N083E208
Calibration: N083E208

Variant 5

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: NF98
ECU HW: MJ9DFHW002
SW upgrade: NF98E338
Calibration: NF98E338

Variant 6

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 544B
ECU HW: MJ9DFHW000
SW upgrade: 544BE132
Calibration: 544BE132

Variant 7

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: F073
ECU HW: MJ9DFHW001
SW upgrade: F073X405
Calibration: F073X405

Variant 8

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 5346
ECU HW: MJ9DFHW000
SW upgrade: 5346E121
Calibration: 5346E121

Variant 9

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF92
ECU HW: MJ9DFHW002
SW upgrade: FF92X535
Calibration: FF92X535

Variant 10

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: N092
ECU HW: MJ9DFHW001
SW upgrade: N092E410
Calibration: N092E410

Variant 11

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: NFB3
ECU HW: MJ9DFHW002
SW upgrade: NFB3E621
Calibration: NFB3E621

Variant 12

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 5348
ECU HW: MJ9DFHW000
SW upgrade: 5348E126
Calibration: 5348E126

Variant 13

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: N068
ECU HW: MJ9DFHW001
SW upgrade: N068E205
Calibration: N068E205

Variant 14

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 5542
ECU HW: MJ9DFHW000
SW upgrade: 5542E138
Calibration: 5542E138

Variant 15

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 5542
ECU HW: MJ9DFHW000
SW upgrade: 5542E136
Calibration: 5542E136

Variant 16

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 5347
ECU HW: MJ9DFHW000
SW upgrade: 5347E122
Calibration: 5347E122

Variant 17

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: NF99
ECU HW: MJ9DFHW002
SW upgrade: NF99LC52
Calibration: NF99LC52

Variant 18

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF94
ECU HW: MJ9DFHW002
SW upgrade: FF94FH20
Calibration: FF94FH20

Variant 19

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF9A
ECU HW: MJ9DFHW002
SW upgrade: FF9AFH16
Calibration: FF9AFH16

Variant 20

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF94
ECU HW: MJ9DFHW002
SW upgrade: FF94FG20
Calibration: FF94FG20

Variant 21

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FFB3
ECU HW: MJ9DFHW002
SW upgrade: FFB3FR21
Calibration: FFB3FR21

Variant 22

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FFB1
ECU HW: MJ9DFHW002
SW upgrade: FFB1FS10
Calibration: FFB1FS10

Variant 23

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FFB1
ECU HW: MJ9DFHW002
SW upgrade: FFB1FP10
Calibration: FFB1FP10

Variant 24

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF94
ECU HW: MJ9DFHW002
SW upgrade: FF94FI20
Calibration: FF94FI20

Variant 25

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF9A
ECU HW: MJ9DFHW002
SW upgrade: FF9AFI17
Calibration: FF9AFI17

Variant 26

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FF9A
ECU HW: MJ9DFHW002
SW upgrade: FF9AFG16
Calibration: FF9AFG16

Variant 27

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: FFB3
ECU HW: MJ9DFHW002
SW upgrade: FFB3FS21
Calibration: FFB3FS21

Variant 28

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: NV10
ECU HW: MJ9DFHW002
SW upgrade: NV10LD20
Calibration: NV10LD20

Variant 29

ECU

Catalog engine: 1300 95HP
Controller brand: MAGNETI MARELLI
ECU: MJ9DF
Stock power: 95 HP
ECU SW: 544B
ECU HW: MJ9DFHW000
SW upgrade: 544BL233
Calibration: 544BL233

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 500X 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 500X 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.