Audi A4 2018 — technical service bulletin
Bulletin A0124252074099_1 · NHTSA communication 11002214 · issued May 28, 2024
Technical service bulletin
communication type
Engine
component
2018
model years
1
vehicle entries
Official summary
This bulletin provides information when the MIL is illuminated, start/stop system fault DTC P16D400.
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.