This situation can result in 2 customer complaints: 1. Wind noise, and 2. Excess water entry.
BMW technical service bulletin B540421 for 2019-2021 BMW X5, 2018-2021 BMW X3 and 2019-2021 BMW X7 and others.
- Bulletin number
- B540421
- Component
- Structure: body
- Summary
- This situation can result in 2 customer complaints: 1. Wind noise, and 2. Excess water entry.
Owners of these vehicles have filed 78 complaints in the body category.
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