Siemens SDI4 — supported tools
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.
Compatibility depends on ECU HW/SW, protocol and active licence. A tool missing from this list does not imply lack of support.
- Read (type unspecified)
- Write
SDI4; MCU variant TC1796
Reading and writing. Scope covers AutoTuner-supported applications for the specified variant.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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