: If you are using a HEX-V2 or HEX-NET style clone, try using the VCI Config utility to force a firmware update, though this carries a risk of permanently "bricking" some clone cables.
Turn off Wi-Fi or unplug your Ethernet cable.
: Navigate to Windows Control Panel, uninstall the current VCDS version entirely, and delete the lingering installation directory (usually found at C:\Ross-Tech\VCDS ). vcds kolimer failed 2 new
: Remove VCDS and the Ross-Tech USB drivers via "Apps & Features".
Report generated by diagnostic technician – April 2026 : If you are using a HEX-V2 or
These legacy interfaces work reliably only up to certain software generations (such as version 20.4 or 23.3).
| Step | Action | Result | |------|--------|--------| | 1 | Reinstall VCDS (19.6.3 – Kolimer recommended version) | No change | | 2 | Replace loader.exe with alternate version (v1.2, v1.4) | Failed 2 New persists | | 3 | Test on different vehicle (2010 Golf vs. 2018 Tiguan) | Fails on newer vehicle only | | 4 | Test with genuine Ross-Tech HEX-V2 | Passes all modules | | 5 | Inspect interface PCB | Clone board – no security IC | : Remove VCDS and the Ross-Tech USB drivers
To avoid encountering the "VCDS Kolimer Failed 2 New" error in the future, follow these best practices:
: Download an authorized engineering EEPROM flashing tool, such as VAGCOM_EEWriteLang.exe or an MPT programmer tool.
By following these best practices and staying informed, you'll be well on your way to resolving any VCDS-related issues and enjoying a smooth, successful diagnostic experience.