Friday, August 7, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Audi A3 2005–2021technical service bulletin

Bulletin A1920042025303_1 · NHTSA communication 10176873 · issued Jun 25, 2020

Technical service bulletin
communication type
Engine and Engine Cooling
component
2005–2021
model years
60
vehicle entries

Official summary

This bulletin contains instructions for identifying and mixing factory fill coolants.

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.