Volkswagen Passat 2012 — technical service bulletin
Bulletin MY 2012 Maintena · NHTSA communication 10127870 · issued Jul 19, 2017
Technical service bulletin
communication type
Equipment
component
2012
model years
1
vehicle entries
Official summary
Sparkplugs: Replace (2.5L only): Added reference to footnote number 7. Changed footnote number 7 to state: "Every 4 years regardless of mileage: Replace spark plugs (2.5L only)"
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.