Humming noises when air conditioning is activated.
BMW technical service bulletin B640219 for 2014-2017 BMW X5 and 2015-2017 BMW X6.
- Bulletin number
- B640219
- Component
- Equipment
- Summary
- HUMMING NOISES WHEN AIR CONDITIONING IS ACTIVATED. Humming or high-pitched vibrating noises can be heard inside the vehicle when the air conditioning (A/C) is switched on.
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