BMW 328 2007–2015 — technical service bulletin
Bulletin 540908 · NHTSA communication 10148328 · issued May 1, 2014
Technical service bulletin
communication type
Structure
component
2007–2015
model years
26
vehicle entries
Official summary
Cleaning Excess Butyl from RHT Roof Shells. Butyl adhesive is used to secure the seals of the retractable hardtop (RHT) to the steel roof shell panels. Particularly at high ambient temperatures, if excess butyl is present, it may start to seep out from between the seal and the roof shell. This butyl may be black or gray in color. Excess butyl applied to the roof shell during assembly
Vehicles covered
- 2007 BMW 328
- 2008 BMW 328
- 2009 BMW 328
- 2010 BMW 328
- 2011 BMW 328I
- 2012 BMW 328I
- 2013 BMW 328I
- 2007 BMW 335
- 2008 BMW 335
- 2009 BMW 335
- 2010 BMW 335
- 2011 BMW 335I
- 2012 BMW 335I
- 2013 BMW 335I
- 2011 BMW 335IS
- 2013 BMW 335IS
- 2014 BMW 428I
- 2015 BMW 428I
- 2014 BMW 435I
- 2015 BMW 435I
- 2008 BMW M3
- 2009 BMW M3
- 2010 BMW M3
- 2011 BMW M3
- 2012 BMW M3
- 2013 BMW M3
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.