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VGSNAG3 IMMO OFF Calc Script for iProg Pro (Mercedes-Benz 9G-Tronic 725)
VGSNAG3 IMMO OFF Calc is a professional calculator script designed to disable the immobilizer (IMMO OFF) in Mercedes-Benz 9G-Tronic transmission control units (TCU), series 725 (VGSNAG3).
The script only works with original iProg Pro programmer! Please write Serial Number and UID in the order.
This solution is intended for specialists in automotive diagnostics, ECU/TCU repair, and Mercedes-Benz chip tuning.
Application:
The script supports VGSNAG3 units installed in a wide range of Mercedes-Benz platforms: W166 / W292 / W213 / W205 / W447 / W222 / W167 / W257, etc.
Typical use cases:
- TCU replacement
- Recovery of corrupted or damaged data
- Immobilizer removal in transmission control units
- Adaptation of used (second-hand) TCU modules
Key Features
- IMMO OFF for VGSNAG3 (9G-Tronic 725)
- Operates as a calculator (IMMO OFF CALC)
- Supports multiple software versions
- High compatibility (tested on 20+ different dumps)
Important: The script works like a calculator and does NOT calculate CS (Checksum)
Recommended Tools & Software
For reading and writing the TCU, use PCMFlash module 82 — Bosch SH725xx TCU Bootloader. This setup ensures stable read/write operations without issues.
Notes & Compatibility
- If an unknown software version is detected, the script will display a warning in the console
- No incompatibility issues observed in real-world testing
- Supports full dumps from various software versions
Open the program and click “Help” -> “About”.
Copy data from the program when placing an order
After completing the order, you will receive files, they must be added to the Scripts folder..
Launch the program and on the left side of the screen you will see the added scripts.
1. No Refunds or Modifications for Digital Licenses
Activated modules or licenses cannot be returned or refunded.
If an incorrect key or device number is entered by the customer, the purchase is not eligible for return.
Licenses cannot be modified, transferred, or reissued for another device under any circumstances.
2. Irreversible Order Processing
After the order status changes to “Waiting for activation”, the data has already been sent to the developer.
From this point onward, the order cannot be canceled, edited, corrected, or refunded.
3. Responsibility for Software Functionality
Our store is not responsible for the functionality, performance, or declared features of any software module.
We do not guarantee the listed functions because we are not the developer.
4. Accuracy of Product Information
Module and script descriptions are provided directly by the manufacturer.
IOBD.io is not responsible for any inaccuracies, missing details, or differences between the description and actual operation.
In disputed situations regarding functionality or listed features, the customer must contact the manufacturer.
5. Customer Responsibility for Installation
IOBD.io sells professional automotive diagnostic software and equipment.
Installation, setup, configuration, and compatibility checks must be performed by the customer.
We do not provide remote installation, programming, or setup services unless explicitly stated otherwise.
6. Required Technical Knowledge
These products are intended for users with basic technical knowledge in automotive diagnostics.
The customer is fully responsible for understanding the installation process and using the software and hardware correctly.
7. No Liability for Incorrect Usage
IOBD.IO is not responsible for issues caused by:
incorrect installation
unsupported or incompatible hardware
improper configuration
third-party interference