Volkswagen Passat 2012–2014 — technical service bulletin
Bulletin VSS-17-11 · NHTSA communication 10157322 · issued Sep 27, 2017
Technical service bulletin
communication type
Equipment
component
2012–2014
model years
3
vehicle entries
Official summary
Volkswagen of America is requesting your cooperation in supplying us with technical information related to the repair process for vehicles on which the TDI Generation II 2.0L emissions modification is being performed ?Campaign 23U4?. Volkswagen will use this information to ensure prompt analysis and resolution of any emerging concerns.
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.