Backrest noises when under load.
BMW technical service bulletin B520417 for 2011-2016 BMW 528I, 2011-2017 BMW 535I and 2011-2017 BMW 550I and others.
- Bulletin number
- B520417
- Component
- Seats
- Summary
- BACKREST NOISES WHEN UNDER LOAD. Pop noise coming from seat backrest when pressure exerted toward rear or while pulling away from a stop. Friction between top right rivet holding lordosis (back Lumbar support) valve block and backrest cushion spring.
Owners of these vehicles have filed 13 complaints in the seats category.
Vehicles covered
- BMW 528I 2011-2016 201120122013201420152016
- BMW 535I 2011-2017 2011201220132014201520162017
- BMW 550I 2011-2017 2011201220132014201520162017
- BMW M5 2013-2016 2013201420152016
- BMW 535D 2014-2016 201420152016
- BMW 535I US 2011 2011
- BMW 550i Gran Turismo 2010-2012 201020112012
- BMW Active Hybrid 3 2012 2012
- BMW 535i Gran Turismo 2010-2012 201020112012
- BMW Active Hybrid 5 2013 2013
- BMW 525d Xdrive 2014 2014
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