I have same problems for almost 2 years (165 000 KM, 6 years, Model S85P).
I have tried to push CH service (GE, Meyrin) centre to:
1. Change the MCU from MCU1 to MCU2 as upgrade (pointing this link Infotainment Upgrade)
- They refused as MCU2 part not available in CH at the moment. They...