Volkswagen Beetle 1999–2001 — technical service bulletin
Bulletin Campaign Circula · NHTSA communication 10155850 · issued Sep 18, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2001
model years
9
vehicle entries
Official summary
Emissions Recall Circular (2.0 Liter Gasoline Engine Vehicles Reprogramming of Engine Control Module and Replacement of Malfunctioning Oxygen Sensor): Volkswagen has found that the oxygen sensor in the upper part of the exhaust system could fail under certain conditions, potentially causing a vehicle to exceed Federal and/or California emission standards, or to experience increased fuel consumption. ?Thermal shock? within the sensor caused by moisture accumulation could cause oxygen sensor failure. If the oxygen sensor fails, the vehicle?s "check engine" light on the dashboard will illuminate.
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.