Audi A4 2008–2013 — technical service bulletin
Bulletin 46147520336747 · NHTSA communication 10250990 · issued Feb 25, 2014
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2008–2013
model years
17
vehicle entries
Official summary
Squealing from front brakes (PR-1LA or 1LB)
Vehicles covered
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.