VCDS 16.8.4 users may encounter problems with the auto-scan function, often failing to complete the scan. One potential solution involves uninstalling VCDS, manually deleting any remaining files and drivers, and then reinstalling a fresh copy of 16.8.4 downloaded directly from the Ross-Tech website. However, this doesn’t always resolve the issue.
In a case study, a user experienced persistent auto-scan crashes even after a clean reinstall of 16.8.4. Individual module scans and tweaks functioned correctly, but the auto-scan consistently failed. The user also attempted to update the cable firmware, but encountered timeout errors when using the “check for update” function within VCDS. Version 17.1.1 was not available for download at the time.
After contacting the cable supplier, the user was advised to perform a firmware update on the diagnostic cable. However, VCDS failed to recognize the need for a firmware update, repeatedly displaying timeout errors. Through numerous restarts, the user eventually prompted VCDS to recognize an available update to version 17.1.1.
Installing 17.1.1 over the existing 16.8.4 installation resolved the auto-scan issue. While the auto-scan now functions correctly, the cable firmware update continues to fail with timeout errors. This suggests that while an outdated VCDS version might contribute to auto-scan problems, other factors related to cable firmware may also play a role.
Ultimately, updating to the latest VCDS version, in this case 17.1.1, proved to be the solution for the auto-scan issue. While firmware updates are recommended for optimal performance, the persistent timeout errors indicate a separate problem that requires further investigation.
