Heated Oxygen Sensor and Heated Oxygen Sensor 2

Heated Oxygen Sensor and Heated Oxygen Sensor 2

Special tools, testers and auxiliary items required

• Ring spanner 7-piece set (3337)

Removing

- Pull off the air duct cover - 1 -, disengage the clips sideways to do so.





- Remove the air duct - 2 -.

- Remove the air filter housing and connecting hose, while doing this remove the bolt - A -, disconnect the electrical connector - B - and remove the spring clip - C -. When reinstalling, observe the marking - D -.





- Disconnect the electrical connectors - 1 and 2 - for the Heated Oxygen Sensor (HO2S) and HO2S 2.





- Free up the electrical wires to oxygen sensors.

- Remove the HO2S 2 - 1 - and HO2S - 2 -.





Installing

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

- Use hot bolt paste (G 052 112 A3) to grease the threads on used oxygen sensors; do not let the paste get onto the slits in the oxygen sensor body

- Install the wiring to its original position again.