MoDiC III was a portable BMW diagnostic system with a tablet-style operating unit and a separate orange vehicle diagnostic head. The head is the interface connected to the car; it is not the MoDiC III display. It followed the earlier handheld MoDiC generations.

Tester, head and dock
BMW period service information describes a radio-frequency diagnostic head with a direct connection cable, and a docking station used to load updates, charge batteries and support printing. Software and cable sets determine what a particular surviving system can do. An independent equipment history identifies the orange interface with the MoDiC III/Kontron system.
Connections and successors
The author of an independent wireless-interface study describes the MoDiC III orange head's wired connection as serial and contrasts its original wireless hardware with the later yellow EDIC head's Ethernet connection. This account describes particular equipment rather than proving compatibility across all versions.
Later BMW workshops used DISplus and Group Tester One with their own appropriate interfaces. Equipment generations and software support overlapped, so date a specific unit by its identification and software rather than treating the transition as a single changeover. The yellow head belongs to the later GT1/DISplus family, distinct from the orange MoDiC III head.
Identification
Look for the tablet, orange interface, diagnostic cables, docking station and software media as separate components. The colour identifies an example in the cited historical account; markings and installed hardware are needed to identify an individual unit.
Sources
- BMW Service Information B12 18 99, BMW of North America, independent mirror; documents MoDiC III and its RF diagnostic head in a specific service procedure.
- Vintage BMW diagnostic equipment: Sun, MoDiC, DIS and GT1, OldBMW.ru; independent illustrated history.
- Wi-Fi modification for the GT1/EDIC diagnostic head, OldBMW.ru; author's comparison of MoDiC III and later interfaces.