Audi A4 2004–2009 — technical service bulletin
Bulletin A371267 2028053- · NHTSA communication 10122793 · issued Oct 3, 2012
Technical service bulletin
communication type
Electrical System
component
2004–2009
model years
16
vehicle entries
Official summary
Supersedes Technical Service Bulletin Group 37 number 11 ? 31 dated December 1, 2011. Customer may report downshifts not smooth when slowing the vehicle. Improved software introduced after production that reduces complaints with shifting characteristics. Improved viscosity of ATF lessens clutch grab during clutch activation. Optimized ATF (blue) introduced gradually in production years 2005 and 2006.
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.