Esys 3.35.3 -

These are the actual data files E-Sys uses to communicate with your car. Always ensure your PsdZData version matches or exceeds your car’s current firmware level. Quick Connection Guide

E-Sys is the backend software used by BMW engineers to communicate with the Electronic Control Units (ECUs) of a vehicle. Unlike the more user-friendly "BimmerCode," E-Sys is a professional-grade tool. It allows for:

Requires an ENET (Ethernet-to-OBD) cable or a compatible wireless ENET adapter.

: Supports most BMW models built through late 2020 and some 2021+ models, depending on the PSdZData version used.