HU-H3 mgu head unit resets with fault code B7F8F9 reset watchdog.
BMW technical service bulletin B650919 for 2019 BMW X5 and 2019 BMW M850I.
- Bulletin number
- B650919
- Component
- Electrical system
- Summary
- HU-H3 MGU HEAD UNIT RESETS WITH FAULT CODE B7F8F9 RESET WATCHDOG. Customer states the following about their vehicle: Active radio or music source is interrupted The navigation is no longer available A black screen is shown in the Control Display The system works again after a short interruption Software error in the Head Unit High (HU-H3) MGU (Media Graphics Unit).
Owners of these vehicles have filed 72 complaints in the electrical category.
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