E-sys 3.25.3 And Psdzdata Files V51.3 ((link)) Jun 2026

| Issue | Cause | Solution | |-------|-------|----------| | cafd_00001f12-007_013_020 not found | Newer CAFD required | Use PSdZData v51.4 or manually inject CAFD. | | VCM Update: TAL execution failed | Missing SWE for one module | Check swe\swfl\ for missing *.bin – downgrade that ECU only. | | E-sys crashes on SVT calculation | Java heap overflow | Edit E-sys.ini → -Xmx1024m to -Xmx2048m . | | “Connection to VIN rejected” | Security token expired | Regenerate EST token using Launcher Pro or BimmerUtility. |

: This is the data package containing the actual firmware and configuration logic for various BMW models. The PSdZData version must be equal to or newer than the software version currently installed in your car (its I-Step) for successful coding. E-sys 3.25.3 And Psdzdata Files V51.3