SDG #309 Kingbolen Ediag Mini OBD-II Bluetooth Diagnostic Dongle

The Kingbolen Ediag Mini sits in an interesting gap in the diagnostic market. At roughly 70 pounds delivered it costs far less than the tablet-based scanners usually covered on the channel, but unlike the sub-30 pound code readers it is not restricted to the engine management ECU. That distinction is the whole point of this review.

Testing on a Euro Ford, the dongle pairs over Bluetooth to the Ediag Android app and runs a full health report across every module it can find, in this case flagging five modules with stored codes and ten clean ones. The report breaks down what each fault actually is, which here included two mirror indicator faults and a rear plate light fault caused by LED bulbs drawing too little current, plus a factory configuration mismatch in the instrument cluster. A stored steering angle sensor code is then read from the ABS module, confirmed as historic rather than current, and cleared successfully from within the app.

The more valuable demonstration is live data. Pulling the full ABS data stream and watching brake fluid pressure climb as the pedal is pressed shows the tool is genuinely reading module PIDs, not just generic OBD-II parameters. The same works for the climate control module, with evaporator, cabin and vent temperatures plus the solar sensor status.

The catch is service functions. Oil service reset and steering angle reset are included; DPF, EGR, brake bleeding and battery registration are paid unlocks tied to the dongle serial number, which is why activation is required. Diagnostics themselves are free for life. For a DIY owner who wants real module-level fault finding without tablet money, that trade-off looks reasonable.