Cause: Incorrect COM port or baud rate, or the cable is not powered (ignition must be ON).
Fix:
⚠️ No official 64-bit driver exists for these clone cables. All available versions are modified or repackaged from older FTDI/CH340/CH341 chipsets.
For FTDI (recommended method):
For CH340:
The "VAG 908" typically refers to a specific version of hardware interfaces used for vehicle diagnostics, most commonly associated with the VAG-K+CAN Commander series or similar aftermarket OBD2 cables. These tools are widely used by automotive enthusiasts and independent mechanics to diagnose and modify vehicles within the Volkswagen Audi Group (VAG)—which includes VW, Audi, Seat, and Škoda.
If you have purchased a VAG 908 interface cable and are trying to connect it to a modern computer running a 64-bit version of Windows (Windows 7, 8, 10, or 11), you will likely encounter driver installation challenges. This guide explains the hardware, the driver necessity, and the installation process.
For VCDS Lite:
| Option | 64-bit Support | Cost | Reliability | |--------|----------------|------|--------------| | Genuine Ross-Tech VCDS (HEX-V2) | ✅ Native | $199–$499 | Perfect | | OBDeleven (Nextgen) | ✅ App-based | $60–$150 | High | | VAG-USB cable + VCDS Lite + 32-bit VM | ✅ Works in VM | $10 + free | Medium (clunky) | | Cheap 64-bit VAG-USB driver from eBay “supplier” | ❌ Most fake | $0–$5 | Very low |
VAG 908 USB Driver 64-bit is a software component that enables modern 64-bit Windows operating systems to recognize and communicate with the VAG-COM (VCDS) 908 diagnostic cable
. This driver is essential for bridging the physical USB connection to the diagnostic software, allowing it to function as a virtual serial COM port. Core Features 64-Bit OS Support:
Specifically designed to allow legacy 908 interfaces to work on 64-bit versions of Windows 7, 8, 10, and 11. Virtual COM Port Emulation: Emulates a serial COM port, which is required by older VAG-COM software and third-party tuning or ECU flashing tools. Stability & Compatibility:
Provides enhanced stability and better documentation for newer vehicle models compared to older 32-bit drivers. Universal VAG Connectivity:
Facilitates connection to Volkswagen, Audi, Seat, and Skoda vehicles from approximately 1994 up to 2010 models. Technical Capabilities Enabled by the Driver
Once installed, the driver allows the VAG 908 interface to perform several professional-grade diagnostic tasks: Advanced Protocol Support: Supports the UDS/ODX/ASAM protocol and for faster module access. Full System Access: vag 908 usb driver 64 bit
Allows users to read and clear manufacturer-specific fault codes (DTCs) from all available control modules. Programming & Adaptation: Long Coding , module adaptations, and service reminder resets. Real-Time Monitoring:
Displays live measuring values (data blocks) and performs output tests to check specific components like fans or pumps. Specialized Functions: Includes tools like the Gateway Coding Assistant
(critical for B8 platform cars) and mileage reading from certain EDC16 ECUs. Installation Highlights Vag 908 USB Driver 64 Bit - Facebook
Installing the VAG 908 USB driver on a 64-bit system (Windows 7, 10, or 11) typically requires manual intervention because older "908" interfaces often use generic USB-to-serial chips that Windows won't recognize automatically. 1. Download Driver Files
Official and legacy drivers can be found through several sources:
Ross-Tech Official: Download the Virtual COM Port (VCP) drivers from the Ross-Tech Virtual COM Port Drivers page.
Legacy/Generic Hardware: If using a third-party cable (e.g., from eBay or Amazon), use the drivers provided on the included CD or from the vendor. 2. Install the Driver Manually Cause: Incorrect COM port or baud rate, or
For 64-bit systems, the automatic installer may fail. Follow these steps to "force" the installation:
Connect the Cable: Plug the VAG 908 cable into your PC's USB port.
Open Device Manager: Right-click the Start button and select Device Manager.
Locate the Device: Look for a "USB Serial Port" or "VAG-COM" entry, likely marked with a yellow exclamation mark. Update Driver: Right-click the device and select Update driver. Choose Browse my computer for drivers.
Select Let me pick from a list of available drivers on my computer.
Click Have Disk... and browse to the folder where you unzipped the downloaded drivers. Select the .inf file (often ftdibus.inf) and click OK.
Confirm Installation: Ignore any "Unsigned Driver" warnings and click Install this driver software anyway. 3. Configure Software Settings ⚠️ No official 64-bit driver exists for these
Once the driver is installed, you must tell the VCDS (VAG-COM) software which port to use: