BMW 525D Xdrive 2010–2017 — technical service bulletin
Bulletin B520417 · NHTSA communication 10146680 · issued Aug 1, 2017
Technical service bulletin
communication type
Seats
component
2010–2017
model years
40
vehicle entries
Official 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.
Vehicles covered
- 2014 BMW 525D Xdrive
- 2011 BMW 528I
- 2012 BMW 528I
- 2013 BMW 528I
- 2014 BMW 528I
- 2015 BMW 528I
- 2016 BMW 528I
- 2014 BMW 535D
- 2015 BMW 535D
- 2016 BMW 535D
- 2011 BMW 535I
- 2012 BMW 535I
- 2013 BMW 535I
- 2014 BMW 535I
- 2015 BMW 535I
- 2016 BMW 535I
- 2017 BMW 535I
- 2010 BMW 535I Gran Turismo
- 2011 BMW 535I Gran Turismo
- 2012 BMW 535I Gran Turismo
- 2011 BMW 535I US
- 2011 BMW 550I
- 2012 BMW 550I
- 2013 BMW 550I
- 2014 BMW 550I
- 2015 BMW 550I
- 2016 BMW 550I
- 2017 BMW 550I
- 2010 BMW 550I Gran Turismo
- 2011 BMW 550I Gran Turismo
- 2012 BMW 550I Gran Turismo
- 2012 BMW Activehybrid 3
- 2013 BMW Activehybrid 5
- 2013 BMW M5
- 2014 BMW M5
- 2015 BMW M5
- 2016 BMW M5
- 2014 BMW R1200 S Adventure
- 2015 BMW R1200 S Adventure
- 2016 BMW R1200 S Adventure
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.