Diagnostic Software for VW-Audi Group Cars

881 Sumneytown Pike, Lansdale PA 19446, USA

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Current Version   VCDS-Lite    USB Driver Installation Instructions 
                    Beta Version

Current Version of VCDS® for customers with High-
Tech HEX, KEY, KII or Micro-CAN Series Interfaces

Copyright Notice:

VCDS is Copyright 2000-2013 by Ross-Tech, LLC / Uwe M. Ross.   All rights are reserved.   De-compilation,  disassembly, reverse-engineering, alteration, use as a reference tool for the purpose of developing a product with similar functionality, and re-distribution in any form without the prior written consent of the author is prohibited.


By downloading this software, you acknowledge that this Program is provided "as is" and "with all faults, defects and errors" and that all use of the Program is at your own full risk.    It has been extensively tested, but we cannot guarantee it will work correctly with every system in every car.  We will make our best effort to fix any bugs and to enhance the program, but we specifically disclaim any liability for damage to your computer or your car, and we do not promise to have any particular enhancements available on any specific date.


  • Download the self-installing distribution file available below. 

  • Run it and follow the prompts to allow it to install itself. 

  • The installer will prompt you if you wish to see a PDF of installation instructions. That PDF can be downloaded here.

  • You must install VCDS on your PC's hard disk!

    • It may not work properly if you try running it directly from other media.   

    • However, you can use other media such as a CD or USB memory key to move the distribution file from a PC with internet access to another PC that does not have internet access.

  • Connect an appropriate interface between the computer and the car.

  • Turn the car's ignition switch ON.  No need to start the engine.

  • Start the VCDS program:

    • Click [Options] and select the correct communications port. 

    • Use [Test] to confirm that the program can use the port and find the interface. 

    • Then [Save]. 

  • Now Play.  Make sure the software can reliably access all the control modules that it should in your car.    See our Application Charts.   Query Fault Codes from some modules.

  • Please check back frequently for updates!  If you want to be notified of updates via e-mail, please subscribe to the VAG-COM-Announce mailing list.

Release Notes:

  • Release 12.12 works with Windows 2000, XP, Vista, 7, 8, and 8.1 (both 32-bit and 64-bit) 

    • Windows 95, 98, ME, and NT4 are no longer supported.

  • The default installation folder is C:\Ross-Tech\VCDS\   

    • It is essential NOT to install in the \Program Files\ tree in on systems running Windows Vista or 7.

  • Driver Versioning Issue:

    • The "Standard" USB drivers in Release 12.12 are older than the ones that came with Release 11.11.0 (which were less than 100% reliable on some PCs). When you install the drivers that come with this version, Windows may complain that they are older than the ones which are already installed. If that happens, you must answer "Yes" when asked if you want to replace the files anyway.

  • To remove other old versions:

    • Versions prior to Release 704, simply delete the shortcuts from your Start menu and
      Desktop and delete the folder(s) where the program was installed..     

    • Release 704 and newer may be uninstalled using Windows' Add/Remove Programs or by running the
      uninstall.exe program found in the folder with the version that you wish to remove.


Important: Please read the following:
Problems & Issues Page

The Current version is:
Release 12.12.3
Data Version 20140905

Universal Installer
for all HEX, KEY, KII and MicroCAN series interfaces
and Windows 2000 or newer.

Digitally signed self-installing .EXE file ~16.5 MB

We also have Beta 14 available. This is required for HEX-NET users and is recommended for all dongle interface users working on the latest cars. Click here for more information.

Includes the VC-Scope and TDI Timing Checker "Plug-Ins"

Additional handy links:

Product Revision History

Interactive On-Line Manual

We also have a 76 sheet Printable Manual that you can download.

Printable Manual ( ~5 MB)
Download PDF Format VCDS Manual
(Right-Click on the above link and select "Save Target As..")
You'll need Adobe Acrobat Reader to open the Manual,
if you don't have it you can get it here

You should tell your PDF reader to "Fit to Printable Area" or use similar instructions
 when printing in order to make the images and text as legible as possible.


Current Version   VCDS-Lite    USB Driver Installation Instructions 
                    Beta Version

Unless otherwise noted, all content on this site is Copyright © 2000-2013 by Ross-Tech LLC.  All rights reserved.
"VCDS" is a Registered Trademark of Ross-Tech, LLC.   
Ross-Tech is not affiliated with the Volkswagen Group in any way.