KESS3 Protocols Releases
New OBD protocols for Marelli IAW 4LV – Audi, Volkswagen, Seat and Skoda.
Thanks to OBD communication, you can work quickly and directly, without disassembly, optimizing time and workflow.
19.01.2026 – Upgrade 2.78
With this release, we introduce new OBD protocols for Marelli IAW 4LV ECUs, a key reference in the European B/C segment and still widely used today in the South American market.
These protocols cover 1.0 and 1.4 MPI engines, produced from 1998 to the early 2000s: long-lasting, reliable, and still regularly serviced in workshops.
Thanks to OBD communication, you can work quickly and directly, without disassembly, optimizing time and workflow.
A release that turns technical simplicity into an operational advantage: read and write via the diagnostic port, manage high workloads, and make every job faster, more efficient, and more profitable.
Technical focus
- Connection: OBD
- ECU: Marelli IAW 4LV
- Production years: from 1998
- Brands involved: Audi, Volkswagen, Seat, Skoda
Supported vehicles ECU
Audi A2
Seat Cordoba, Ibiza, Leon
Skoda Fabia
Volkswagen Bora, Caddy, Gol, Golf, Jetta, Lupo, Polo
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