When the interior temperature of the vehicle is between 5 F (-15 C) and 23 F (-5 ), the defroster function...
BMW technical service bulletin B640524 for 2023-2024 BMW 530I, 2023-2024 BMW 740I and 2023-2024 BMW Ix and others.
- Bulletin number
- B640524
- Component
- Electrical system
- Summary
- When the interior temperature of the vehicle is between 5 F (-15 C) and 23 F (-5 ), the defroster function is limited; and the interior doesnâÂÂt heat up quickly enough.
Owners of these vehicles have filed 40 complaints in the electrical category.
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