Adds support for newer Peugeot and Citroën models produced up to 2014/2015.
It is frequently cited as the most stable version for the standard "full chip" Lexia clones found on sites like AliExpress . Step-by-Step Installation Guide (7.02 to 7.57) diagbox 7.02 to 7.57 download
: Completely turn off Windows Defender and any third-party antivirus software. Security programs frequently flag Diagbox update patches as false positives. Adds support for newer Peugeot and Citroën models
Once the installer finishes, launch Diagbox from your desktop shortcut as an Administrator. Security programs frequently flag Diagbox update patches as
| Vehicle Group | Compatibility with 7.57 | Notes | | :--- | :--- | :--- | | Peugeot 206, 307, 407 (Pre-2008) | ✅ Perfect | Full Lexia/PP2000 overlay | | Peugeot 308, 508, RCZ (2008-2014) | ✅ Excellent | Telecoding works fully | | Peugeot 208, 2008 (2015-2017) | ⚠️ Partial | BSI update required | | Citroën C3, C4, C5 (2004-2012) | ✅ Perfect | Complete | | Citroën DS3, DS4, DS5 (2011-2016) | ✅ Good | Some options need professional subscription | | Opel/Vauxhall (2017-2018) | ⚠️ Limited | Only engine/ABS, no Body Control | | Euro 6 Diesel (AdBlue) 2016+ | ⚠️ Basic | Can read faults, no reset via Diagbox 7 |
Ensure the Lexia 3 is connected to the USB before opening the application, and verify drivers in Device Manager.