Quality checks have determined that the coolant changeover valve may develop a coolant leak under ver ylow...
BMW technical service bulletin B640724 for 2023-2024 BMW Ix.
- Bulletin number
- B640724
- Component
- Engine
- Summary
- Quality checks have determined that the coolant changeover valve may develop a coolant leak under ver ylow outside temperatures (significantly lower than 32ยบ F (0 C)).
Owners of these vehicles have filed 4 complaints in the engine category.
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