Upstream oxygen sensors
Pic. 2.231. Removing the upstream oxygen sensor: 1 - sensor
Remove the oxygen sensor using the tool (Mot. 1495-01) (pic. 2.231).
Lower oxygen sensors - removal and installation
Pic. 2.232. Removing the downstream oxygen sensor: 1 - sensor
Remove the oxygen sensor (pic. 2.232).
The sensors are installed in the reverse order of removal.
Torque tighten (45 Nm) lower oxygen sensor using a 24 mm open-end socket and upper oxygen sensor using a tool (Mot. 1495-01).