9-3 Coupe (9400) L4-2.0L Turbo (B204) (1999)
Oxygen Sensor: Service and Repair
Oxygen Sensor 1 - Trionic T5
To remove
1
Remove the engine cover.
2
Detach the turbo delivery pipe.
3
Unplug the sensor cable.
4
Note the position of the cables and the location of clips/cable lies before detaching the cables.
5
Raise the car and remove the oxygen sensor.
To fit
IMPORTANT
The oxygen sensor threads must be coated with Molycote 1000 or equivalent before fitting.
1
Fit the oxygen sensor.
Tightening torque: 55 Nm (40 lbf ft)
2
Lower the car and fit the cables
3
Connect the cable to the oxygen sensor
4
Fit the turbo delivery pipe.
5
Fit the engine cover.
IMPORTANT
It is important that the cable is located correctly to prevent it making contact with the exhaust/turbocharger.