The Advanced Patch Solution for Resetting G30 8HP50 EGS Units.
This resource provides a complete patch and a detailed step-by-step guide for resetting (virginizing) the ZF 8HP50 transmission control unit (EGS) in BMW G30 models. This procedure is necessary when adapting a used gearbox to a different vehicle.
What Problem Does This Solve?
The EGS module in the G30 is locked to the original vehicle's security system. When installing a used unit, it must be reset to a factory state before it can be programmed to the new car. This "2ab2 patch" solution utilizes a multi-stage process involving E-Sys and Tool32 to securely virginize the module.
Supported SWFL Versions
This patch solution is designed for the `2ab2` software family. Your EGS must have one of the following SWFL versions:
Code:
swfl_00002ab2-030_034_001
swfl_00002ab2-030_034_002
swfl_00002ab2-030_037_002
swfl_00002ab2-030_037_003
swfl_00002ab2-030_043_001
swfl_00002ab2-030_044_000
swfl_00002ab2-030_055_000
swfl_00002ab2-030_057_000
swfl_00002ab2-030_058_000
swfl_00002ab2-030_059_000
swfl_00002ab2-030_063_000
swfl_00002ab2-030_066_000
swfl_00002ab2-030_067_000
The Step-by-Step Reset Procedure
Follow these steps carefully. This process involves modifying your PSdZData folder temporarily.
Step 1: E-Sys - Initial Flash
- Open E-Sys and connect to the vehicle.
- Go to Expert Mode -> Tal-Processing.
- Load the TAL named `egs tal-step1` provided in the patch archive.
- Execute the TAL to perform the first update on the EGS.
- Open Tool32.
- Load the file: `gszfb1.prg`.
- Find and select the job: `steuergeraete_reset`.
- Run the job to perform the reset function.
- Close Tool32.
- Go to your PSdZData folder: `\psdzdata\swe\swfl\`.
- Copy the "patched swfl" files from the `2ab2-patch.zip` archive into this folder, replacing the original files (always make a backup of the originals first!).
- Go back to E-Sys and load the TAL named `patch tal-step2`.
- Execute the TAL to reflash the EGS with the patched files.
- Open Tool32 again.
- Load `gszfb1.prg` and run the `steuergeraete_reset` job one more time.
- Close Tool32.
- Restore your original SWFL files to the `\psdzdata\swe\swfl\` folder.
- Go back to E-Sys and load the TAL named `original tal-step3`.
- Execute the TAL to reflash the EGS with its original, correct software.
- After the flash is complete, code the EGS with the "Code" button to apply the vehicle default settings.
- Connect with ISTA.
- Delete all fault codes from the vehicle.
- Find and close the "transport mode" if it is active.
- The gearbox is now fully reset and adapted!
IMPORTANT: Recovery Procedure
The patch archive includes "2ab2 multi prog recover" files. These are for use with universal programmers like Multi-Prog, etc.
If your EGS loses communication during the process, you can use these files to recover the EGS on the bench and then restart the reset procedure.
System Requirements & Testing
- Operating System: This procedure uses standard BMW tools, which are tested and confirmed to be stable on Windows 10 LTSC 2019.
- Required Software: BMW E-Sys, Tool32, ISTA, and a full PSdZData library.
- Required Hardware: An ENET Cable or ICOM interface.