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.