Audi A4 Allroad 2017–2018 — technical service bulletin
Bulletin A551843 2051804- · NHTSA communication 10145649 · issued Jul 17, 2018
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
4
vehicle entries
Official summary
This bulletin contains repair instructions for when the gesture controlled rear lid does not work with DTC U11520.
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.