BMW 3 Series G20 (2019+) — Diagnosis
The table below is the real diagnostic profile the Diagnost program uses for the BMW 3 Series G20 — every unit it polls, reads fault memory from and (where marked) codes. This is not marketing: it is the program's working database.
Control units read on the G20
| Unit | System | Coding |
|---|---|---|
| BDC | Body Domain Controller | ✓ |
| G_MOTOR | Engine (auto-detect) | |
| G_EGS | Automatic transmission (auto-detect) | |
| KOMBI | Instrument cluster | ✓ |
| IHKA | Climate control | ✓ |
| DSC | Brakes / ABS | ✓ |
| ACSM | airbag | ✓ |
| HU | Head unit MGU | |
| FZD | Roof function centre | ✓ |
| SAS | Steering angle sensor | ✓ |
| EGS | Automatic transmission | ✓ |
Have a problem with your G20?
Describe the symptoms or paste the codes — the AI knows this chassis' typical weak points.
Start diagnosisFault memories on this car (if it has a CAN bus — roughly 2008 and newer) are read by the program with an ordinary ELM327 adapter too. A K+DCAN cable (E series) or ENET cable (G series) in the Windows version is what unlocks dealer-level depth: coding, service intervals, factory options, per-module mileage and the full fault list for every unit in the table above.