AutoVEI – D2451S0066 – MB ACM/MCM BSL – MCM, MCM2, MCM2.1, ACM2, ACM2.1 – R/W in BSL mode

AutoVEI – D2451S0066 is a software license/activation for the AutoVEI Truck Explorer toolset.
• It enables read and write access to certain Mercedes‑Benz engine control units (ECUs) — specifically the MCM and ACM series — using a BSL (Boot Strap Loader) mode.

To use this license you need:

• A VEI programmer tool (e.g., VEI V6/V7)

• A DirectConnect2U (DC2) interface and appropriate cables for the MCM/ACM ECUs
  These connect directly to the ECU for BSL operations.

Typical Use Cases

 Backup or restore ECU memory
 Repair corrupted ECUs
 Chip tuning professionals unlocking/reading locked modules
 Recover units that don’t respond via standard OBD/DC modes