Features & Benefits
Ensure your Ross-Tech VCDS diagnostic interface works on older Volkswagen Group vehicles with pre-OBDII connectors using this authentic VAS 5051/2 “2×2” Adapter. Whether you’re diagnosing a classic VW Golf, Audi 80 or early Škoda model, this adapter lets you bridge the gap between early diagnostic ports and modern OBDII tools.
Older Volkswagen Group cars sometimes lack the standard 16-pin OBDII diagnostic port that modern diagnostic tools require. Instead, they use the older style 2×2 Data Link Connector — commonly found in VW and Audi models from the early 1990s. This adapter converts that 2×2 plug into a standard OBDII socket, so your Ross-Tech VCDS interface can connect seamlessly.
The kit includes :
- 2 × Genuine Ross-Tech HEX-NET Diagnostic Interfaces
- USB cables for wired operation
- VCDS licensed software (download)
- Quick start documentation
- Unlimited VIN professional licensing
- Lifetime software updates
Benefits:
- Enables use of VCDS Ross-Tech diagnostics tools on classic cars
- Converts 2×2 diagnostic port to a modern OBDII connection
- Helps unlock advanced fault code reading and reporting
- Works with most early VW, Audi, SEAT and Škoda vehicles with 2×2 ports
- Durable, workshop-ready build quality
Technical Specification
Purpose: Converts older 2×2 diagnostic port to standard 16-pin OBDII connector for modern diagnostic tools
Compatibility:
Pre-OBDII Volkswagen, Audi, SEAT and Škoda vehicles (typically 1990-1995 models)
Works with Ross-Tech VCDS diagnostic interfaces such as HEX-V2 and HEX-NET when diagnosing older cars
Connector Type:
Vehicle Side: 2×2 diagnostic port (pre-OBDII)
Tool Side: Standard OBDII 16-pin female socket
Build Quality: Durable automotive-grade construction designed for repeated workshop use
Design Standard: Equivalent to OEM VAS-5051/2 adapter used by Volkswagen Group
Use Case: Enables connection of modern OBDII diagnostic tools to older vehicles that lack a standard OBDII port
Why Choose This Product?
- Essential for Older VAG Cars (1990–1995) – Many early VW and Audi models use a 2×2 diagnostic port that won’t accept a standard 16-pin OBDII plug. This adapter converts the 2×2 port to a modern OBDII connection, unlocking full VCDS functionality.
- Perfect Pairing with VCDS Ross-Tech Interfaces – Makes your Ross-Tech VCDS tools (like HEX-V2 or HEX-NET) compatible with classic vehicles, so you can read fault codes, access control modules and perform diagnostics.
- High-Quality, Durable Construction – Built to robust standards and equivalent to the genuine VW VAS-5051/2 adapter, ensuring long-lasting performance during repeated diagnostic use.
Frequently Asked Questions (FAQ's)
What vehicles require the VAS 5051/2 “2×2” adapter?
Older Volkswagen Group cars built before the introduction of the standard 16-pin OBDII port (1990-1995) often use a 2×2 diagnostic connector. This adapter lets you use modern OBDII diagnostic tools like Ross-Tech VCDS on those vehicles.
Will this adapter let me use VCDS on classic VAG cars?
Yes — this adapter connects the older 2×2 diagnostic port found on classic VW, Audi, SEAT and Škoda models to a standard 16-pin OBDII socket, allowing your Ross-Tech VCDS interface to communicate with the vehicle’s system.
Do I need any other cables or adapters to use this with VCDS?
You will need your VCDS interface (such as Ross-Tech HEX-V2 or HEX-NET) and an appropriate diagnostic cable. This adapter simply bridges the older 2×2 connector to the OBDII diagnostic cable — no additional tools are required.







