November 2015 Technical Service Speaker noise heard while traveling at highway speeds with the sunroof open
BMW technical service bulletin B652115 for 2009-2011 BMW 750LI, 2009-2015 BMW 750I and 2012-2015 BMW 740I and others.
- Bulletin number
- B652115
- Component
- Equipment
- Summary
- November 2015 Technical Service Speaker noise heard while traveling at highway speeds with the sunroof open. While driving at higher road speeds with the sunroof open a distortion or pulsating noise can be heard from the central bass speaker(s). Central bass speaker design
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