Audi Q8 2019–2023 — technical service bulletin
Bulletin A2023602067759_2 · NHTSA communication 10236578 · issued May 5, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2023
model years
5
vehicle entries
Official summary
This bulletin states to install sleeves on the activated charcoal filter line in instances where there is a ticking and/or thumping noise that occurs primarily when at idle and is heard primarily in the right rear seat.
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.