After updating to VCDS 15.7.3, some users have reported encountering various issues. While it’s easy to blame the latest update, most problems have straightforward solutions. This guide outlines common troubleshooting steps for VCDS 15.7.3 to get you back on track.
Ensuring Proper Installation of VCDS 15.7.3
First, verify you’ve downloaded the official VCDS 15.7.3 release from the Ross-Tech website (http://www.ross-tech.com/vcds/download/current.html) and installed it correctly. While the built-in updater should suffice, a fresh installation is recommended for troubleshooting. Allow the installer to complete without interruption, accepting the terms and using default installation options. Crucially, ensure the USB drivers install at the end of the process.
Addressing USB Connection Problems
Next, address potential USB connection issues. Unplug your interface, wait five seconds, and reconnect it. Windows should automatically detect and install the necessary drivers. If problems persist, consult Ross-Tech’s specific USB configuration guides for your operating system: XP (http://www.ross-tech.com/vcds/usb/usb-config-xp.html) or Vista/7 (http://www.ross-tech.com/vag-com/usb/usb-config-vista.html).
Launching and Testing VCDS 15.7.3
Launch VCDS. If it fails to start, check if your firewall or antivirus software is blocking the application. Confirm the version displayed at the top of the screen is indeed 15.7.3. If it shows an older version, repeat the installation steps. Upon launching, you should see a “First Use, No Config File” message. Acknowledge it and proceed to Options > Test.
Performing a Firmware Update
For the test to function correctly, connect the interface to a car’s OBD-II port with the ignition ON to provide 12V power. This enables firmware update checks. If the test indicates “Firmware Update Required”, click OK then Update. Maintain the car connection throughout the update process. The update should progress to 100%. Click Close, then Save.
Verifying Functionality and Further Troubleshooting
After these steps, all VCDS functions should be available. Test communication by selecting 01-Engine > Fault Codes-02. If issues remain, consult Ross-Tech’s FAQs 2.4 and 2.5 (http://ross-tech.com/vag-com/faq_2.html#2.4) for advanced troubleshooting. These FAQs cover common problems like Windows disabling USB ports, write permission issues, and interference from extension cables.
Addressing Performance Issues and Virtualized OS Compatibility
Slow performance might be caused by antivirus software like Microsoft Security Essentials. Add VCDS to the exception list if necessary. Finally, remember that virtualized operating systems (Parallels, Virtual PC) are not supported (FAQ 1.4, http://www.ross-tech.com/vag-com/faq_1.html#1.4). While they might work in some instances, a physical Windows PC is recommended for reliable VCDS 15.7.3 operation. Following these steps should resolve most issues encountered with VCDS 15.7.3.
