Renault Koleos Service Repair Manual: Oxygen sensors: Removal - Refitting

2TR

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Position the vehicle on a two-post lift .
• Disconnect the battery.
• Remove the engine undertray.

II - OPERATION FOR REMOVAL OF PART CONCERNED

1 - UPSTREAM OXYGEN SENSOR (A)

• Disconnect the upstream oxygen sensor connector (1) .
• Unclip the wiring of the upstream oxygen sensor from the heat shield at (2) .
• Remove the upstream oxygen sensor (A) using the (Mot. 1495-01).

2 - DOWNSTREAM OXYGEN SENSOR (B)

• Disconnect the downstream oxygen sensor connector (3) .
• Unclip the wiring of the oxygen sensor from the heat shield at (4) .
• Remove the upstream oxygen sensor (B) using the (Mot. 1495-01).

REFITTING

I - REFITTING OPERATION FOR PART CONCERNED

1 - Upstream oxygen sensor (A)

• Refit the upstream oxygen sensor.
• Torque tighten the upstream oxygen sensor (50 Nm) using the tool (Mot. 1495-01).
• Clip the wiring of the upstream oxygen sensor onto the heat shield at (2) .
• Connect the upstream oxygen sensor connector.

2 - Downstream oxygen sensor (B)

• Refit the downstream oxygen sensor.
• Torque tighten the downstream oxygen sensor (50 Nm) using the tool (Mot. 1495-01).
• Clip the wiring of the downstream oxygen sensor onto the heat shield at (4) .
• Connect the downstream oxygen sensor connector.

II - FINAL OPERATION.

• Refit the engine undertray.
• Connect the battery.