Oxygen Sensor After Catalytic Converter, Bank 2

Oxygen Sensor After Catalytic Converter, Bank 2

Special tools, testers and auxiliary items required

• Ring Spanner 7-Piece Set for Oxygen Sensor (3337 )

Removing

• All cable ties which are opened or cut open when removing, must be replaced in the same position when installing.

- Pull rear engine cover off - arrows -.





- Remove coolant expansion tank - arrow -.





- Disconnect electrical connection from engine coolant level warning switch (F66) at bottom of coolant reservoir and set aside coolant reservoir with coolant hoses - 1 - and - 2 - connected.

- Disconnect the electrical harness connector - 1 - for oxygen sensor 2 after catalytic converter (G131) and free up the wiring.





• Ignore - 2 -.

- Remove the oxygen sensor - 2 - with the ( 3337).





• To improve clarity, the removed engine is shown.

Installing

Installation is in reverse order of removal, note the following:

• Replace O-ring.

• New oxygen sensors are coated with assembly paste; the paste must not get into slots of oxygen sensor body.

• When reinstalling the previously used oxygen sensor, coat thread with hot bolt paste. Paste must not get on slits of sensor body.

• During installation, all cable ties must be reinstalled at the same location.

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

Tightening Specifications