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Siemens SDI4 — supported tools

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Siemens SDI4 engine ECU with confirmed AutoTuner support via OBD. MCU variants: TC1796. 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

SDI4; MCU variant TC1796

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

CMDFlash
OBD
  • Operations unspecified

SDI4; PORSCHE CAYENNE; 4.8 GTS 298KW 405HP SIEMENS SDI4 CAN; PORSCHE CAYENNE; 4.8 S 283KW 385HP SIEMENS SDI4 CAN; PORSCHE CAYENNE; 4.8 TURBO 368KW 500HP SIEMENS SDI4 CAN; PORSCHE CAYENNE; 4.8 TURBO S 404KW 549HP SIEMENS SDI4 CAN

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

CMDFlash
Boot
  • Operations unspecified

SIEMENS SDI4 TC1796; PORSCHE

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

DFOX
Bench
  • Read (type unspecified)
  • Write

Porsche Cayenne GTS 4.8L V8; Porsche Cayenne S 4.8L V8; Porsche Cayenne Turbo 4.8L V8; Porsche Cayenne Turbo S 4.8L V8; SDI4; MCU TC1796

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

DFOX
Boot
  • Read (type unspecified)
  • Write

Porsche Cayenne GTS 4.8L V8; Porsche Cayenne S 4.8L V8; Porsche Cayenne Turbo 4.8L V8; Porsche Cayenne Turbo S 4.8L V8; SDI4; MCU TC1796

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

Flex
OBD
  • Operations unspecified

VDOSDI4; Porsche Cayenne (I) 9PA 4.5L Turbo S M48.50S (2003–2010); Porsche Cayenne (I) 9PA 4.8L GTS - (2003–2010); Porsche Cayenne (I) 9PA 4.8L S M48.01 (2003–2010); Porsche Cayenne (I) 9PA 4.8L Turbo S - (2003–2010); Porsche Cayenne (I) 9PA 4.8L Turbo S M48.51 (2003–2010); protocol 23530000; OBD

Confirmed compatibility for the specified protocol and applications. Requires one of these packages: FLS0.1M, FLS0.1S, FLS0.5M, FLS0.5S. Check this Flex protocol for detailed reading, writing and memory functions.

Flex
Boot
  • Operations unspecified

VDOSDI4; Porsche Cayenne (I) 9PA 4.5L Turbo S M48.50S (2003–2010); Porsche Cayenne (I) 9PA 4.8L GTS - (2003–2010); Porsche Cayenne (I) 9PA 4.8L S M48.01 (2003–2010); Porsche Cayenne (I) 9PA 4.8L Turbo S - (2003–2010); Porsche Cayenne (I) 9PA 4.8L Turbo S M48.51 (2003–2010); protocol 3010704; BOOT

Confirmed compatibility for the specified protocol and applications. Requires one of these packages: FLS0.10M, FLS0.10S, FLS0.5M, FLS0.5S. 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