Audi A4 Allroad 2014–2018 — technical service bulletin
Bulletin A421737 2038689- · NHTSA communication 10128295 · issued Apr 18, 2017
Technical service bulletin
communication type
Suspension
component
2014–2018
model years
19
vehicle entries
Official summary
This bulletin contains information on how to fix a clunking or rattling noise heard from the rear suspension when the vehicle id driven over bumps.
Vehicles covered
- 2014 Audi A4 Allroad
- 2015 Audi A4 Allroad
- 2016 Audi A4 Allroad
- 2014 Audi A5
- 2015 Audi A5
- 2016 Audi A5
- 2017 Audi A5
- 2018 Audi A5
- 2014 Audi A5 Cabriolet
- 2015 Audi A5 Cabriolet
- 2016 Audi A5 Cabriolet
- 2017 Audi A5 Cabriolet
- 2018 Audi A5 Cabriolet
- 2014 Audi A6
- 2015 Audi A6
- 2016 Audi A6
- 2014 Audi A7
- 2015 Audi A7
- 2016 Audi A7
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.