Specialized Transmission Coverage: E38, E39, E46, E53

This professional software module is engineered for reading and writing Transmission Control Modules (TCM) via the vehicle diagnostic connector. It provides a seamless interface for adjusting transmission behavior and performance on classic BMW platforms.

• Bosch GS8.60.2 (FID: 3): Specifically designed for BMW vehicles equipped with the ZF 5HP24 automatic transmission.

• Siemens GS20 (FID: 4): Professional solution for BMW vehicles utilizing the General Motors 5L40 gearbox.

• True Diagnostic Solution: Perform all operations directly through the OBD2/diagnostic connector without disassembling the transmission control unit.

Supported Vehicle Models

The module offers precise calibration capabilities for the following BMW series and models:

ZF 5HP24 (Bosch GS8.60.2):

• BMW E38: 735, 740, 730d

• BMW E39: 535, 540

General Motors 5L40 (Siemens GS20):

• BMW E38: 730d

• BMW E39: 530d, 525d

• BMW E46: 325i

• BMW E53 X5: 3.0d

Elite Software Features

• Memory Management: Supports reading of the calibration area and writing of field calibrations.

• Automatic Checksum Correction: Internal algorithms automatically verify and fix checksums during the writing process to ensure stable transmission behavior.

• Diagnostic Accuracy: Read and clear fault codes (DTCs) to maintain transmission health during the tuning process.

• User-Friendly Interface: Part of the established BitBox shell, allowing for fast identification and module activation.

Required Hardware for Operation

To utilize this module, the following professional hardware is required (available at atxtool.com):

• BitSoftware USB Security Dongle: The mandatory Senselock key is required to host all activated BitBox licenses.

• J2534 Pass-Thru Interface: A high-quality J2534 device (such as Scanmatik 2 PRO or Tactrix Openport 2.0) is required for communication.

• Internet Connection: Stable internet access is necessary for module activation and server-based software functions.