To remove

IMPORTANT: The cables must not be twisted. Twisted cables exposed to vibration can break.
The oxygen sensor is sensitive to impact and jolting and must be handled with care.

Remove the engine cover.

Fig 1: Illustration For Steps 1 To 2
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Remove the oxygen sensor connector from the holder by pressing the lugs together as shown in the illustration.
Remove the bypass pipe and heat shield.

Fig 2: Illustration For Steps 3 To 5
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Uncut the cable tie to the oxygen sensor and draw out the cables.
Remove the oxygen sensor from the turbo outlet pipe.