To remove

Unplug the connector for the oxygen sensor and carefully lower the cable.

Fig 1: Illustration For Step 1
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Raise the car. CV: Remove Chassis reinforcement, front supporting frame, CV
Remove the lower turbocharger pressure pipe.

Fig 2: Illustration For Step 3
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Bend out the corner of the heat shield slightly.

Fig 3: Illustration For Step 4
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Run the cable forward and remove the oxygen sensor.

Fig 4: Illustration For Step 5
Courtesy of SAAB-SCANIA OF AMERICA, INC.