Volkswagen Passat 2013–2014 — technical service bulletin
Bulletin V8016012040580_9 · NHTSA communication 10209418 · issued Mar 28, 2022
Technical service bulletin
communication type
Visibility
component
2013–2014
model years
2
vehicle entries
Official summary
Introduce new coolant with part number used during No Heat/Heater Core procedure.
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.