Audi A4 2012–2015 — technical service bulletin
Bulletin TSB_2028902_5 · NHTSA communication 11034638 · issued Jun 23, 2026
Technical service bulletin
communication type
Power Train
component
2012–2015
model years
48
vehicle entries
Official summary
This bulletin provides informaiton when the transmission warning message appears in the cluster; P074100 stored in the TCM.
Vehicles covered
- 2012 Audi A4
- 2013 Audi A4
- 2014 Audi A4
- 2015 Audi A4
- 2012 Audi A4 Avant
- 2012 Audi A5
- 2013 Audi A5
- 2014 Audi A5
- 2015 Audi A5
- 2014 Audi A5 Cabriolet
- 2015 Audi A5 Cabriolet
- 2013 Audi A6
- 2014 Audi A6
- 2013 Audi A7
- 2014 Audi A7
- 2012 Audi A8
- 2013 Audi A8
- 2015 Audi A8
- 2012 Audi Q5
- 2013 Audi Q5
- 2014 Audi Q5
- 2015 Audi Q5
- 2013 Audi Q5 Hybrid
- 2014 Audi Q5 Hybrid
- 2015 Audi Q5 Hybrid
- 2012 Audi Q7
- 2013 Audi Q7
- 2014 Audi Q7
- 2015 Audi Q7
- 2013 Audi RS 5
- 2014 Audi RS 5
- 2015 Audi RS 5
- 2013 Audi RS 5 Cabriolet
- 2014 Audi RS 5 Cabriolet
- 2015 Audi RS 5 Cabriolet
- 2014 Audi RS 7
- 2013 Audi S4
- 2014 Audi S4
- 2015 Audi S4
- 2013 Audi S5
- 2014 Audi S5
- 2015 Audi S5
- 2013 Audi S6
- 2014 Audi S6
- 2013 Audi S7
- 2014 Audi S7
- 2013 Audi S8
- 2015 Audi S8
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.