Volkswagen Beetle 2005 — technical service bulletin
Bulletin 01 08 10 · NHTSA communication 10024627 · issued Mar 6, 2008
Technical service bulletin
communication type
Electrical System
component
2005
model years
1
vehicle entries
Official summary
Update programming, mil on or flashing, dtc p0420 stored in ecm. *nj
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.