BMW 320I 2009–2014 — technical service bulletin
Bulletin B111012 · NHTSA communication 10146944 · issued Jul 1, 2015
Technical service bulletin
communication type
Engine
component
2009–2014
model years
37
vehicle entries
Official summary
N20 Engine: Repeated Juddering or Surging While Accelerating. The vehicle judders or surges repeatedly while accelerating in hot ambient temperatures between 3,000 RPM and 5,000 RPM. The Service Engine Soon lamp is not illuminated, and no fault codes are stored in the vehicle memory related to this complaint. CAUSE The EPDW (electropneumatic pressure convertor) for the turbocharger wastegate valve is binding internally.
Vehicles covered
- 2013 BMW 320I
- 2012 BMW 328I
- 2013 BMW 328I
- 2012 BMW 335I
- 2013 BMW 335I
- 2014 BMW 525D Xdrive
- 2011 BMW 528I
- 2012 BMW 528I
- 2013 BMW 528I
- 2014 BMW 528I
- 2014 BMW 535D
- 2011 BMW 535I
- 2012 BMW 535I
- 2013 BMW 535I
- 2014 BMW 535I
- 2011 BMW 535I US
- 2011 BMW 550I
- 2012 BMW 550I
- 2013 BMW 550I
- 2014 BMW 550I
- 2012 BMW Activehybrid 3
- 2013 BMW Activehybrid 3
- 2013 BMW Activehybrid 5
- 2013 BMW M5
- 2014 BMW M5
- 2012 BMW X1 Sav
- 2013 BMW X1 Sav
- 2011 BMW X3
- 2012 BMW X3
- 2013 BMW X3
- 2014 BMW X3
- 2009 BMW Z4
- 2010 BMW Z4
- 2011 BMW Z4
- 2012 BMW Z4
- 2013 BMW Z4
- 2014 BMW Z4
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.