Continental SIMOS18.4 — supported tools

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Continental Simos18.4 ECU reading and writing: AutoTuner: OBD — write. Support applies to the MCU, vehicle and HW/SW variants specified for each programming tool. Check the OBD reading type, required unlocking and restrictions for the exact ECU. Hexprog release 1.0.39 of 28 June 2021 lists virtual reading, OBD writing and checksum correction for VW, Audi, Skoda and Seat.

Last changed: 2026-10-30 · 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

Write

Continental Simos18.4; MCU TC1791; compatible HW/SW variants

Applies to MCU TC1791 and compatible vehicle and HW/SW variants in the AutoTuner list. The page confirms OBD writing; real versus virtual reading is not distinguished.

HexprogHistorical information

OBD

Virtual Read
Write
Checksum

VW / Audi / Skoda / Seat; software 1.0.39

Release 1.0.39 added virtual reading, OBD writing and checksum correction.

Pinout Bench

No Bench pinout has been added.

Pinout Boot

No Boot pinout has been added.

Update history

Revision 2 · 2026-10-30
Revision 1 · 2026-10-30