Magneti Marelli 4HV — supported tools

← ECU catalogue

Magneti Marelli 4HV engine ECU with confirmed AutoTuner support via OBD. MCU variants: ST10F296. Reading and writing follow the protocol scope; match the ECU identification to a supported variant before use.

Last changed: 2026-10-31 · Card revision 2

Compatibility depends on ECU HW/SW, protocol and active licence. A tool missing from this list does not imply lack of support.

Tool

Connection

Operations

Scope and notes

AutoTuner

OBD

Read (type unspecified)
Write

IAW 4HV; MCU variant ST10F296

Reading and writing. Scope covers AutoTuner-supported applications for the specified variant.

CMDFlash

Boot

Operations unspecified

MARELLI 4HV ST10F296; SEAT; SKODA; VOLKSWAGEN

Mode compatibility confirmed by the official CMDFlash list. The corresponding protocol package is required; match functions and ECU variant in CMDFlash software.

DFOX

Boot

Read (type unspecified)
Write

Audi; Seat; Skoda; Volkswagen VW; 4HV; MCU ST10F269

Operations confirmed in the DFOX list for the specified application and variant. Updates published since October 2025 require DFOX V2 software.

DFOX

OBD

Read (type unspecified)
Write

Audi; Seat; Skoda; Volkswagen VW; 4HV; MCU ST10F269

Operations confirmed in the DFOX list for the specified application and variant. Updates published since October 2025 require DFOX V2 software.

DFOX

Boot

Read (type unspecified)
Write

Seat Cordoba 1.4l 16V; Seat Ibiza 1.4l 16V; Seat Leon 1.4l 8V; Skoda Fabia 1.4l 16V; Skoda Octavia 1.4l 16V; Skoda Roomster 1.4l 16V; Volkswagen VW Golf V 1.4l 16V; Volkswagen VW Polo 1.4l 16V; 4HV

Operations confirmed in the DFOX list for the specified application and variant. Updates published since October 2025 require DFOX V2 software.

DFOX

OBD

Read (type unspecified)
Write

Seat Cordoba 1.4l 16V; Seat Ibiza 1.4l 16V; Seat Leon 1.4l 8V; Skoda Fabia 1.4l 16V; Skoda Octavia 1.4l 16V; Skoda Roomster 1.4l 16V; Volkswagen VW Golf V 1.4l 16V; Volkswagen VW Polo 1.4l 16V; 4HV

Operations confirmed in the DFOX list for the specified application and variant. Updates published since October 2025 require DFOX V2 software.

Flex

Boot

Operations unspecified

IAW4HV; Seat Ibiza III 1.4L - (2002–2009); Seat Ibiza IV 1.4L CGGB (2008–2017); Seat Leon II 1.4L CGGB (2005–2012); Skoda Fabia II 5J/B 1.4L - (2007–2014); Skoda Fabia II 5J/B 1.4L CGGB (2007–2014); Skoda Octavia (II) 1Z 1.4L CGGA (2004–2012); Skoda Octavia (II) 1Z 1.4L E-TEC Flex 8v SPE/4 (2004–2012); Skoda Praktik 5J 1.4L CGGB (2007–2015); Skoda Roomster 5J 1.4L - (2006–2015); Skoda Roomster 5J 1.4L CGGB (2006–2015); Volkswagen (VW) Golf Plus VI 1.4L CGGA (2008–2012); Volkswagen (VW) Golf V 1.4L - (2003–2008); Volkswagen (VW) Golf V 1.4L BUD (2003–2008); Volkswagen (VW) Golf VI 1.4L CGGA (2006–2014); Volkswagen (VW) Golf Variant VI 1.4L CGGA (2008–2012); Volkswagen (VW) Polo V Typ 6R 1.4L CGGB (2009–2017); protocol 50070102; BOOT

Confirmed compatibility for the specified protocol and applications. Requires one of these packages: FLS0.5M, FLS0.5S, FLS0.8M, FLS0.8S. Check this Flex protocol for detailed reading, writing and memory functions.

Pinout Bench

No Bench pinout has been added.

Pinout Boot

No Boot pinout has been added.

Update history

Revision 2 · 2026-10-31
Revision 1 · 2026-10-31