Front oxygen sensor (B235R, B205L/R): Dismantling

Remove the top engine cover

Fig 1: Illustration For Step 1
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Detach the oxygen sensor connector from the holder.
Remove the bypass pipe and heat shield.

Fig 2: Illustration For Steps 2-5
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Cut the cable tie for the oxygen sensor and pull out the cables
IMPORTANT: The leads must not be twisted. The oxygen sensor is highly sensitive to knocks and blows and must be handled with care.
Release the oxygen sensor from the turbo outlet pipe