Audi A4 2009–2014 — technical service bulletin
Bulletin A391414 2028902- · NHTSA communication 10122466 · issued May 5, 2014
Technical service bulletin
communication type
Structure
component
2009–2014
model years
32
vehicle entries
Official summary
Supersedes Technical Service Bulletin Group 39 number 12-12 dated June 12, 2012. A squealing, howling, or whistling noise may be heard coming from under the vehicle. The condition is typically noticed when the vehicle is cold and is moving at speeds of 5 - 60 mph. The noise is from the intermediate bearing of the propeller shaft.
Vehicles covered
- 2009 Audi A4
- 2010 Audi A4
- 2013 Audi A4 Allroad
- 2014 Audi A4 Allroad
- 2011 Audi A4 Avant
- 2012 Audi A4 Avant
- 2009 Audi A5
- 2010 Audi A5
- 2011 Audi A5
- 2012 Audi A5
- 2013 Audi A5
- 2014 Audi A5
- 2009 Audi A5 Cabriolet
- 2010 Audi A5 Cabriolet
- 2011 Audi A5 Cabriolet
- 2012 Audi A5 Cabriolet
- 2013 Audi A5 Cabriolet
- 2014 Audi A5 Cabriolet
- 2012 Audi A6
- 2012 Audi A7
- 2011 Audi A8
- 2012 Audi A8
- 2009 Audi Q5
- 2010 Audi Q5
- 2011 Audi Q5
- 2012 Audi Q5
- 2013 Audi Q5
- 2014 Audi Q5
- 2009 Audi Q7
- 2010 Audi Q7
- 2011 Audi Q7
- 2012 Audi Q7
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.