Siemens SIMOS9.1 — supported tools

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Siemens SIMOS9.1 engine ECU supported by DFOX via Boot, OBD. Reading and writing for listed applications from: Audi, Seat, Skoda, Volkswagen VW. Variant, memory and operation details are specified in the support records.

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

DFOX

Boot

Read (type unspecified)
Write

Audi; Seat; Seat Ibiza 1.2l 12V; Skoda; Skoda Fabia 1.2l 12V; Skoda Roomster 1.2l 12V; Volkswagen VW; Volkswagen VW Polo 1.2l 12V; SIMOS 9.1; MCU C167 29F400 / 29F800

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; Seat Ibiza 1.2l 12V; Skoda; Skoda Fabia 1.2l 12V; Skoda Roomster 1.2l 12V; Volkswagen VW; Volkswagen VW Polo 1.2l 12V; SIMOS 9.1; MCU C167 29F400 / 29F800

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

SIMOS9.1; Seat Cordoba 6L2 1.2L 5MT BME (2002–2009); Seat Cordoba 6L2 1.2L 5MT BZG (2002–2009); Seat Ibiza III 1.2L - (2002–2009); Seat Ibiza III 1.2L 5MT BMD (2002–2009); Seat Ibiza III 1.2L 5MT BME (2002–2009); Seat Ibiza III 1.2L 5MT BZG (2002–2009); Seat Ibiza IV 1.2L 5MT BZG (2008–2017); Seat Ibiza IV 1.2L 5MT CGPA (2008–2017); Seat Ibiza IV 1.2L 5MT CGPB (2008–2017); Seat Ibiza SC IV 1.2L 5MT BZG (2008–2017); Seat Ibiza SC IV 1.2L 5MT CGPA (2008–2017); Seat Ibiza SC IV 1.2L 5MT CGPB (2008–2017); Seat Ibiza ST IV 1.2L 5MT CGPA (2008–2017); Seat Ibiza ST IV 1.2L 5MT CGPB (2008–2017); Seat Toledo KG 1.2L MPI 6MT CGPC (2012–2019); Skoda Fabia Combi I 6Y/A 1.2L - (1999–2007); Skoda Fabia Combi I 6Y/A 1.2L 5MT BMD (1999–2007); Skoda Fabia Combi II 5J/B 1.2L - (2007–2014); Skoda Fabia Combi II 5J/B 1.2L 5MT BZG (2007–2014); Skoda Fabia Combi II 5J/B 1.2L 5MT CGPA (2007–2014); Skoda Fabia I 6Y/A 1.2L - (1999–2007); Skoda Fabia II 5J/B 1.2L - (2007–2014); Skoda Praktik 5J 1.2L 5MT BZG (2007–2015); Skoda Praktik 5J 1.2L 5MT CGPA (2007–2015); Skoda Rapid NH 1.2L MPi - (2012–2019); Skoda Rapid Spaceback NH1 1.2L MPI 6MT CGPC (2012–2017); Skoda Roomster 5J 1.2L - (2006–2015); Skoda Roomster 5J 1.2L 5MT BME (2006–2015); Skoda Roomster 5J 1.2L 5MT BZG (2006–2015); Skoda Roomster 5J 1.2L 5MT CGPA (2006–2015); Volkswagen (VW) Fox I 1.2L BMD (2003–2011); Volkswagen (VW) Polo Cross V Typ 6R 1.2L 12V CGPA (2009–2017); Volkswagen (VW) Polo IV Typ 9N 1.2L 12V BME (2001–2009); Volkswagen (VW) Polo IV Typ 9N 1.2L 12V BZG (2001–2009); Volkswagen (VW) Polo IV Typ 9N 1.2L BMD (2001–2009); Volkswagen (VW) Polo V Typ 6R 1.2L 12V CGPA (2009–2017); Volkswagen (VW) Polo V Typ 6R 1.2L 12V CGPB (2009–2017); protocol 50070203; BOOT

Confirmed compatibility for the specified protocol and applications. Requires one of these packages: FLS0.5M, FLS0.5S, FLS0.7M, FLS0.7S. Check this Flex protocol for detailed reading, writing and memory functions.

Flex

Boot

Cloning

VAG; SIMOS9.1; 1 TO 1

1:1 cloning within the scope stated in the manufacturer list.

PCMflash

OBD

Read (type unspecified)
Write
Checksum

Module 17; VAG K-Line; 1.2L BME/BZG/CGPA Calibration K-Line (Simos 9.1/512KB)

Requires PCMflash module 17 licence and a compatible J2534 interface.

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