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. The corrective action taken for this issue was to Check the emission control system for proper function,
reset electronically the engine?s control module and
replace the oxygen sensor, if necessary.
