VCDS (VAG-COM) is a Windows-based software package used for diagnostics and modification of Volkswagen, Audi, Seat, and Skoda vehicles. Version 12.12.x was a significant release launched around late 2013/early 2014. It provided support for newer chassis codes (like the MQB platform found in the Golf Mk7) and updated firmware for diagnostic cables.
: Reads, decodes, and clears localized Diagnostic Trouble Codes (DTCs) across all internal modules, translating raw VAG codes into descriptive, readable faults. vcds pci 12123 download top