Rear Oxygen Sensor: Removal

WARNING: This page is about a different variant/trim than selected.

Disconnect the ground cable from battery.
Lift up the vehicle.
Remove the front exhaust pipe. Ref. to REMOVAL , Front Exhaust Pipe.
Apply spray-type lubricant to the threaded portion of rear oxygen sensor, and leave it for one minute or more.
Remove the rear oxygen sensor.
CAUTION: When removing the rear oxygen sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.

Fig 1: Identifying Rear Oxygen Sensor RH And LH
Courtesy of SUBARU OF AMERICA, INC.