Trionic T7, 4-Cyl OBD II
To remove
1 Remove the engine cover.
2 Unplug the connector.
3 Undo the sensor with a 27 mm long socket.
To fit
1 Check the sealing washer and fit a new one if necessary.
Apply vaseline (part no. 30 20 271) or equivalent to the sensor threads. Fit the sensor.
Tightening torque 17 Nm (12 lbf ft)
2 Spray the connector with Kontakt 61 (part no. 30 04 520). Plug in the connector.
3 Fit the cover.