A software error in the automatic air conditioning control unit allows the electric auxiliary heater to...
BMW technical service bulletin B640824 for 2023-2024 BMW XM.
- Bulletin number
- B640824 (0064320200)
- Component
- Visibility/wiper
- Summary
- A software error in the automatic air conditioning control unit allows the electric auxiliary heater to keep the heating and air conditioning system awake, causing a drain on the electrical system.
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