The v.4.27.20 psdzdata lite version is a streamlined package designed for coding purposes. Unlike the "Full" version, which includes large firmware files (SWFL) used for flashing and updating ECU software, the "Lite" version contains only the metadata required for basic coding and configuration. This makes the download significantly smaller and more manageable for users who do not intend to perform complete module reflashing.
: Open your C: drive in Windows File Explorer. If it doesn't already exist, create a new folder named Data . Then, inside the Data folder, create another new folder named psdzdata . Your final folder path must be: C:\Data\psdzdata This is the standard location that most versions of E-Sys expect.
Fix : Version 4.27.20 is ideal for models manufactured up through late 2020. If you are modifying a newer vehicle and experience empty module lists, you will need to download a more recent database variant, such as v4.47.20 or later. v42720 psdzdata lite download work
PsdZData (Programmier Systemdaten, or Programming System Data) is the database that contains all the firmware, CADF (Coding Data File), and SWE (Software Entry) files for BMW vehicles. The number (often written as v42720) refers to a specific software version released in late 2022/early 2023.
Do not open E-Sys directly. Use the Launcher (e.g., Launcher PRO 2.8.0 for v42720). : Open your C: drive in Windows File Explorer
: The "Lite" version contains only the metadata (CAFD files) required for FDL and VO coding . It excludes the heavy firmware files (SWFL) used for flashing ECU modules, making it roughly 1–2 GB compared to the 140 GB+ of the "Full" version.
After successful installation, you're ready to start working with V42720 PSdzData Lite. Here's a basic guide on getting started: Your final folder path must be: C:\Data\psdzdata This
Open , go to Options > Settings > Program > Directories . Ensure the "Data Path" is correctly set to C:\Data . 💡 Lite vs. Full Version
The most reliable source is the BMW 3-Series F30 Forum (specifically, the thread managed by user shawnsheridan ). Users request links in this forum, and updated links are sent via private message (PM).
Once the files are in place, you connect to the vehicle via an ENET cable