Siemens SIM266 — supported tools

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Siemens SIM266 engine ECU with confirmed AutoTuner support via OBD. MCU variants: MPC561. Reading and writing follow the protocol scope; match the ECU identification to a supported variant before use. Some modes require additional conditions described in the support details.

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

SIM266; MCU variant MPC561

Reading and writing. Beta protocol: beta testers only. Scope covers AutoTuner-supported applications for the specified variant.

CMDFlash

OBD

Operations unspecified

SIM266; MERCEDES A; 150 1500 16V 70KW 95HP SIM266 CAN; MERCEDES A; 170 1700 16V 85KW 116HP SIM266 CAN; MERCEDES A; 200 2000 16V 100KW 136HP SIM266 CAN; MERCEDES A; 200 2000 16V 142KW 193HP TURBO SIM266 CAN; MERCEDES B; 150 1500 16V 70KW 95HP SIM266 CAN; MERCEDES B; 170 1700 16V 85KW 116HP SIM266 CAN; MERCEDES B; 200 2000 16V 100KW 136HP SIM266 CAN; MERCEDES B; 200 2000 16V 142KW 193HP TURBO SIM266 CAN

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

DFOX

OBD

Write

Mercedes Benz A Class 1.5/1.7/2.0 W169; Mercedes Benz B Class 1.5/1.7/2.0l W245; SIM266; MCU MPC56x

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

OBD

Read (type unspecified)
Write

Mercedes Benz; SIM266; MCU MPC5xx

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

SIM266; Mercedes A-Class (II) W169 1.5L 150 M266.920 (2004–2012); Mercedes A-Class (II) W169 1.5L 150 M266E15 (2004–2012); Mercedes A-Class (II) W169 1.5L 160 BlueEFFICIENCY M266E15 (2004–2012); Mercedes A-Class (II) W169 1.5L 160 M266.920 (2004–2012); Mercedes A-Class (II) W169 1.7L 170 M266E17 (2004–2012); Mercedes A-Class (II) W169 2.0L 200 M266E20 (2004–2012); Mercedes A-Class (II) W169 2.0L 200 Turbo M266E20AL (2004–2012); Mercedes B-Class (W245) 1.5L 150 M266E15 (2005–2010); Mercedes B-Class (W245) 1.5L 160 BlueEFFICIENCY M266E15 (2005–2010); Mercedes B-Class (W245) 1.7L 170 M266E17 (2005–2010); Mercedes B-Class (W245) 2.0L 200 M266E20 (2005–2010); Mercedes B-Class (W245) 2.0L 200 Turbo M266E20AL (2005–2010); protocol 22720000; 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.

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