to remove all traces of the failed install.
: You can find the specific patch on community-driven file-sharing sites like (approx. 164 MB) or through mirrors hosted on as noted by contributors on Official Source Peugeot ServiceBox
: Launch the downloaded DiagBox_Update_V7.57_to_V7.58.exe (or similar filename). diagbox 757 to 758 download free
Before installing the update, prepare your system to avoid installation failures or corrupted software files.
I can provide tailored troubleshooting steps or guide you to the right setup configuration. Share public link to remove all traces of the failed install
The Diagbox 7.57 to 7.58 upgrade represents the final frontier of "Offline Freedom" for owners of early-to-mid 2010s Peugeot, Citroën, and DS vehicles. While performing a free update requires a strict adherence to technical steps—disabling antivirus, backing up license files, and finding the right incremental patch—the result is a professional-grade dealership tool at your fingertips.
Restart your computer to clear out any background processes. Do not connect your Lexia/VCI cable to the computer yet. Run the update file as an Administrator. Before installing the update, prepare your system to
Diagbox is a popular diagnostic software used to troubleshoot and repair vehicles. Developed by Peugeot, it allows users to connect to a vehicle's onboard computer system, known as the Engine Control Unit (ECU), to diagnose and repair issues. With Diagbox, users can access a wide range of vehicle systems, including engine, transmission, brakes, and more.
: Some updates require Java 1.5 or higher to run correctly.
Yes, but it’s riskier. The official update path is sequential: 7.56 → 7.57 → 7.58. If you skip 7.57, you may lose telecoding data for certain ECUs. Always apply 7.57 first.
When searching for files online, look for archives that explicitly list the update sequence. Ensure the download includes the global update password, which is universally required during the installation of these third-party patches. ⚠️ Warning Regarding Malware