The Ross-Tech VCDS (VAG-COM Diagnostic System) is a powerful tool for diagnosing and troubleshooting Volkswagen, Audi, Seat, and Skoda vehicles. Two popular interfaces are the HEX-CAN and HEX-V2. This article explores the key differences between these interfaces to help you choose the right one for your needs.
Key Features of HEX-V2
The HEX-V2 boasts several improvements over older interfaces like the HEX-CAN. Some notable features include:
- USB Connection: Utilizes a modern USB connection for compatibility with current laptops and PCs. A detachable USB cable with a proprietary locking mechanism is included, but a standard USB-A to USB-B cable can be used in a pinch.
- Broad Vehicle Compatibility: Supports diagnostic communication with most VW/Audi passenger cars from 1996 to the present, covering K, K+L, dual-K, and CAN protocols. Certain exceptions apply, detailed further below.
- Updateable Firmware: Equipped with a 32-bit microcontroller and easily updated firmware ensures compatibility with future vehicle models and software updates.
- Tri-Color Status LEDs: Features enhanced visibility LEDs indicating connection status and activity.
- Integrated Software License: Functions as a dongle for the VCDS software, allowing installation and use on any compatible computer.
Compatibility Considerations
While the HEX-V2 offers extensive compatibility, it’s crucial to note some exceptions:
- Volkswagen Routan: This rebadged Chrysler minivan does not utilize VW diagnostic protocols and is not supported.
- Lamborghini: Requires the use of the HEX-NET interface for diagnostics.
- Early TDI Engines: Some 1991-1994 Audi TDI engines with 240bps ECUs may have limited compatibility.
Computer Requirements and Extensions
For optimal performance, Ross-Tech recommends using VCDS with a computer running Windows 7 or newer with at least a 1 GHz dual-core processor and 1 GB of RAM. While older systems may function, they aren’t officially supported.
The included 6-foot USB cable is sufficient for most applications. However, only the Ross-Tech approved 16-foot Active USB Extension is supported for extending the connection. Passive USB extensions are not compatible. A 3-foot OBD extension cable is also available to keep the interface away from the driver’s feet. For desktop users, a wireless HEX-NET interface might be a more practical solution.
Registration and Resale
Interfaces purchased directly from Ross-Tech are typically pre-registered. Reseller purchased interfaces require registration within 10-15 uses. Registration is handled online using a utility included with the VCDS software. While the HEX-V2 enables software functionality on any compatible computer, product support is limited to the original registered user. Second-hand buyers seeking support must re-register the interface for a fee.
Software and Drivers
The HEX-V2 is designed for use with the latest version of the VCDS software and does not support other diagnostic applications. It operates as an HID device, generally not requiring special drivers. However, an INF file included with the VCDS installer addresses specific power management issues in Windows 8.1 and later.
Conclusion: HEX-V2 – The Modern Choice
The HEX-V2 represents a significant advancement in diagnostic interfaces for VAG vehicles. Its modern features, broad compatibility, and updateable firmware make it a compelling choice for both professionals and enthusiasts. While the HEX-CAN served its purpose, the HEX-V2 is the recommended interface for accessing the full capabilities of the VCDS system. Consider your specific needs and the limitations outlined above when making your decision. For more information or to purchase, visit the Ross-Tech website or an authorized distributor.
