A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
Oxygen Sensor: Service and Repair
Oxygen Sensors Assembly Overview
Oxygen Sensors Assembly Overview
Oxygen Sensors
1
Oxygen Sensor after Catalytic Converter (G130) and Oxygen Sensor Heater 1 ( Z29)
2
Heated Oxygen Sensor (G39 ) and Oxygen Sensor Heater (Z19)
‹› Tightening Specifications: 55 Nm
Oxygen Sensor Electrical Connectors
1
EVAP Canister Purge Regulator Valve (N80)
2
Oxygen Sensor after Catalytic Converter (G130) and Oxygen Sensor Heater 1 ( Z29)
3
Heated Oxygen Sensor (G39 ) and Oxygen Sensor Heater (Z19)
‹› New oxygen sensors are coated with assembly paste; the paste must not get into slots of oxygen sensor body.
‹› For a used oxygen sensor, only coat threads with hot bolt paste. This paste must not come into contact with sensor slots. Hot bolt paste. Refer to
‹› Wiring connection of oxygen sensor must always be secured in the same position when installing so that contact with the exhaust pipe is avoided.
Heated Oxygen Sensor (G39) and Oxygen Sensor Heater (Z19), Removing and Installing. Refer to => [ Heated Oxygen Sensor and Oxygen Sensor
Heater before Catalytic Converter ] See: Heated Oxygen Sensor and Oxygen Sensor Heater before Catalytic Converter.