The (often abbreviated as DIA 3 or BDT 3) is a Windows-based PC application designed exclusively for Bosch eBike systems (Classic, Active, Performance, Cargo, and Smart System). It communicates with the eBike’s drive unit, battery, display, and control unit via a special USB interface cable.
– Free via the Bosch website or app
A Game-Changer for eBike Owners and Mechanics - Bosch Diagnostic Tool 3 Review bosch diagnostic tool 3 ebike download free