VAG IMMO Tool — BCM2/ELV/EZS/TCU, PCR2.1 & ECU Decode • EEPROM 95320

Bin · 06.02.2026

All-in-one VAG IMMO workspace
Decode / view / edit immobilizer datasets across BCM2 / BCM2 Locked / ELV / EZS / CCM / TCU plus PCR2.1 and ECU Decode pages (EEPROM / D-Flash / P-Flash / Flash) — with clear UI fields like VIN, CS, MAC, Power Class, key slots, status and export/save actions.

Built for fast, structured IMMO data work: upload the required dump (EEPROM / Flash / D-Flash / P-Flash), press Decode, and get a clean “service view” of the immobilizer dataset.
You’ll see the same core pairing fields across modules (VIN, IMMO ID, CS, MAC, Power Class, key slots, status/CP fields where applicable), plus one-click export buttons like Save Data, Save EEPROM and Save Flash depending on the module.

VAG IMMO Tool BCM2 module: decode and edit immobilizer (IMMO) data from 95320 EEPROM or D-Flash, repair EEPROM errors, ELV option; compatible with Audi A4, Audi A5, Audi Q5.

What you can do with it (in practice)

Decode immobilizer datasets from different VAG control units and see the important fields in a clean editor (no hex scrolling).
Compare / verify data — quickly check whether dumps match each other (typical when diagnosing “component protection / mismatch” style problems).
Prepare data for module replacement — when you have an original unit + donor unit and need the donor to match the vehicle’s stored identity/alignment data.
Recover from corrupted dumps — the UI is designed around “decode → identify → edit → export” flows and has dedicated repair-style actions in some modules.
Work module-by-module — ELV, BCM2, EZS, CCM, TCU are treated differently because the stored IMMO structure differs per unit.
Export results — save decoded data views and save processed EEPROM/Flash outputs (buttons are built into every Execute page).

Why there are so many modules (what each one targets)
Think of each module as a “profile” for a specific unit/family and its memory layout:

BCM2 — main body/immobilizer storage workflow for BCM2 (EEPROM/P-Flash pairing in the Execute). Shows the richest dataset view (CS/MAC, CP-related fields, key slots, etc.).
BCM2 Locked — BCM2 locked variant flow (D-Flash + P-Flash + optional key file). Same idea as BCM2, different source files and structure.
AUDI ELV — ELV (steering column lock) focused workflow. Flash input → decoded IMMO fields + console for status/logs.
EZS — EZS (central locking / immobilizer-related dataset) workflow. EEPROM input → CS/MAC/PIN/status + key slots.
EZS Crafter — EZS flow tailored for VW Crafter modules (same UI style, but Crafter-specific dataset layout).
SYNC AKL — “All Keys Lost” synchronization suite shown in the module overview (reset/synchronization style actions).
CCM — comfort module dataset view (VIN/IMMO ID/CS/MAC + brand/status dropdowns + key slots).
TCU — DSG/TCU workflow (Flash + EEPROM inputs) with its own decoded fields and drop-down selectors for IMMO areas.
PCR2.1 — EEPROM-only operations for PCR2.1 family (the UI explicitly highlights EEPROM-only support).
ECU DECODE — engine ECU focused decode/edit for IMMO4/IMMO5/IMMO6 generations (as stated in the module description).
ECU Cloning — “Original vs Donor” full automatic built for moving the full dataset between ECUs and keeping alignment consistent.

Access
https://www.immo-master.net/vag/login.php

Code:

👤 Login: mhh
🔑 Password: full

Quick module map

Module	Core purpose (as shown)	Available actions	Required files
BCM2	Decrypt IMMO data from BCM2 95320 EEPROM or D-Flash; identify/repair data issues; ELV-related option shown	Decode/Edit IMMO data • Repair EEPROM Errors • Disable ELV	EEPROM 95320 or D-Flash • P-Flash
BCM2 Locked	Decrypt IMMO data from BCM2 Locked D-Flash; data error repair; ELV-related option shown	Decode/Edit IMMO data • Repair EEPROM Errors • Disable ELV	D-Flash dump • P-Flash • Key EEPROM file (full decode only)
AUDI ELV	Electronic Steering Column Lock: clone/decrypt IMMO-related data from ELV module	Decrypt IMMO data • Edit IMMO data	DFlash file
EZS	Electronic Central Locking: clone/decrypt/edit IMMO data (Audi EZS), MCU-type targeted	Decrypt IMMO data • Edit IMMO data	EEPROM or D-Flash
EZS Crafter	VW Crafter EZS: full IMMO decryption + complete cloning support (as stated in UI)	Decrypt IMMO data • Edit IMMO data	EEPROM or D-Flash
SYNC AKL	All Keys Lost synchronization suite: reset + synchronization workflows	Immo Reset • ECU Synchronization • Transponder Generation • Adaptation Reset	EEPROM file • Abrites • Advanced Diagnostics
CCM	Comfort Control Module: cloning + full decryption of immobilizer data in VAG CCM units	Decrypt IMMO data • Edit IMMO data	EEPROM file
TCU	Transmission Control Unit: cloning-style data handling on DQ200/DQ250/DQ400 MQB families	Decrypt IMMO data • Edit IMMO data • IMMO OFF (button shown)	EEPROM file • Flash file
PCR2.1	PCR 2.1 — EEPROM Only Operations: decrypt all immobilizer data using EEPROM only (no flash / no MCU ID required)	Decrypt all immo data • Edit all immo data	EEPROM 95640 (accepted size: 8 KB or 136 KB)
ECU DECODE	Engine Control Unit IMMO workspace: calculates/edits IMMO data for IMMO4 / IMMO5 / IMMO6 generations	Decrypt all immo data • Edit all immo data	Eeprom File • Flash File OR MCU ID
ECU Cloning	Full Automatic ECU cloning for engine ECUs incl. immobilizer synchronization (as stated in UI)	Full ECU Clone • Immo Data Transfer	Original ECU EEPROM/Flash • Donor ECU EEPROM/Flash • MCU ID (optional)

“Execute” pages — common layout
After clicking Execute, modules open a dedicated “Programming Interface” with a familiar structure:

Upload Files — only the file types needed for that module (EEPROM / D-Flash / P-Flash / Flash)
File Operations — buttons like Decode, Save Data, Save EEPROM, Save Flash, etc.
Identification (where available) — detected HW/SW/Version/ECU type/IMMO type after decoding
Config (where available) — Master/Slave ECU + TCU/ELV toggles (checkboxes)
Immo Data — decoded fields + Enable Edition toggle for editing mode
Console (some modules) — log output + Clear button

Modules (expanded: Dashboard details + Execute interface)