OEM BMW SRS Control Unit 5A19AC2 for BMW G20
The OEM BMW Navigation Audio Control Head Unit MGU21 APN (also designated HU-H4, Head Unit High 4) is the Media Graphics Unit 21 infotainment processor that superseded the original MGU starting with MY2021 vehicles equipped with option code 6U3 Live Cockpit Professional, serving as the core system for navigation, audio, and multimedia control.
Functions
- Manages navigation (map updates via USB in glovebox), radio/audio, Bluetooth connectivity, WLAN, and display control for iDrive 7 systems.
- Supports map installation with FSC (Functional Service Code), enabling the required codes (index 156 for MGU) for activation via ISTA, ISTA 4, or USB.
- Integrates with video interfaces (front/rear cameras, HDMI inputs for smartphones, DVD players, and mirroring devices) to enhance multimedia and camera display functionality.
- Compatible with TV tuner modules (e.g., TV-Free TF-MGU21, CI-TF-MGU21) for television reception via CAN bus connection.
Applicable Vehicle Models
- 2021+ BMW iX, i4 (debut with iDrive 8.0 Curved Display); G22 4 Series (2021+); G07 X7, G05 X5 (MGU21A variant);
- other G-series models with Live Cockpit Professional (SA 6U3).
