Rear (lower) heated oxygen sensor (HO2S), installing

Fig 1: Rear (Lower) Heated Oxygen Sensor (HO2S), Installing

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Install a new sealing ring
• Apply copper paste (P/N 1161035-9) to the entire length of the screw thread
• To avoid damage from twisting to the cable harness for the heated oxygen sensor (HO2S), turn the probe approximately 4 turns counter-clockwise before inserting it
• Install the heated oxygen sensor (HO2S). Tighten to 55 Nm  .