KESS3 Protocol Release

25 september 2026

Upgrade 3.58

New BENCH protocol for EVPT VCU3000: Stellantis electric quadricycles.

New access mode for Citroën Ami, Fiat Topolino and Opel/Vauxhall Rocks-e.

KESS3 expands its coverage for electric microcars with the new BENCH protocol for EVPT VCU3000 VCUs installed on Citroën Ami, Fiat Topolino and Opel Rocks from 2025.

This new development allows you to work directly from the control unit connector, adding a faster and more practical access mode for workshop operations alongside the BOOT mode already available.

A new connection mode that simplifies work on the VCUs of Stellantis electric quadricycles and expands the workshop’s operating possibilities on new-generation applications.

The benefits for everyday workshop operations:

  • Work in BENCH mode directly from the ECU connector.
  • Use the new BENCH access alongside the BOOT mode already available.
  • Expand your workshop services to new-generation micro-EVs.
  • Work without opening the control unit.

Thanks to the new solution, KESS3 continues to expand its coverage of the latest control units, providing workshops with new tools to work on increasingly widespread electric quadricycles.

Technical focus

  • Connection: BENCH
  • ECU: EVPT VCU3000
  • Production years: from 2025
  • Brands involved: Citroën, Fiat, Opel, Vauxhall

Supported vehicles

  • Citroën Ami
  • Fiat Topolino
  • Opel Rocks-e
  • Vauxhall Rocks-e

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