Replacing Lambda SOND Rear

Replacing Lambda Sond Rear

Removing heated oxygen sensor (HO2S) wiring







- Remove relay cover and disconnect connector from front (black (2)) or rear (white (1)) heated oxygen sensor (HO2S).
- Undo the cable wiring at the 3 fixing points
- Raise the car for the rear (lower) sensor.

Removing heated oxygen sensor (HO2S)







- Apply rust removing agent
- Remove heated oxygen sensor (HO2S)
- Remove the sealing ring.

Installing heated oxygen sensor (HO2S)







- Install a new seal ring. Apply copper paste (P/N 1161035-9) to the entire thread length.

Tighten heated oxygen sensor (HO2S) to 55 Nm

- Place cable upwards
- Lower the car for the rear (lower) sensor.

Installing heated oxygen sensor (HO2S) cable and connector

NOTE: Adjust wiring connections so that it does not come into contact with the exhaust system.







- Route cable and tighten at 3 places
- Connect connector and tighten cable to bracket
- Reinstall relay cover.