Heated Oxygen Sensor (G39)

Heated Oxygen Sensor (G39)

Special tools, testers and auxiliary items required

• Ring Spanner 7-Piece Set (3337)

Removing

- Remove the rear engine cover - 2 - upward.






- Free up the fuel line - 4 - and hose connection - 1 - from the EVAP canister on the air filter housing and on the air guide tube.






- Remove the vacuum hose - 2 - from the air guide hose connection.

- Remove the air guide pipe by loosening the hose clamp - 3 - and opening the clips - arrows -.

- Remove the bolts - arrows -, remove the air guides - 1 - and - 2 -.






- Open the clips - arrows - and remove the air filter housing upper section.






- Disconnect the electrical connector - 1 - for the heated oxygen sensor and free up the wire.






• Ignore - 2 -.

- Remove the oxygen sensor - 2 - with the oxygen sensor probe wrench (3337/7).






• To provide a better illustration, component location is shown from behind with engine removed.

Installing

Installation is performed in reverse order of removal, noting the following:

• 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 oxygen sensor slots.

• Wiring connection of oxygen sensor must always be secured in the same position when installing so that contact with the exhaust pipe is avoided.

• Tightening specifications, refer to => [ Oxygen Sensors Overview ] Oxygen Sensors Overview