Front Oxygen ( A/F) Sensor (U5/Low Emissions)
REMOVALLH SIDE
1. Disconnect battery ground cable.
2. Disconnect connectors from bracket and front oxygen (A/F)sensor.
3. Lift-up the vehicle.
4. Remove undercover.
5. Remove front oxygen (A/F) sensor harness from bracket.
6. Apply SUBARU CRC or its equivalent to threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
SUBARU CRC (Part No. 004301003)
7. Remove front oxygen (A/F) sensor.
CAUTION: When removing the oxygen (A/F) sensor, wait until exhaust pipe cools, otherwise it will damage exhaust pipe.
RH SIDE
1. Disconnect battery ground cable.
2. Disconnect connectors from bracket and front oxygen (A/F) sensor.
3. Lift-up the vehicle.
4. Remove undercover.
5. Remove front oxygen (A/F) sensor harness from bracket.
6. Apply SUBARU CRC or its equivalent to threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
SUBARU CRC (Part No. 004301003)
7. Remove front oxygen (A/F) sensor.
CAUTION: When removing the oxygen (A/F) sensor, wait until exhaust pipe cools, otherwise it will damage exhaust pipe.
INSTALLATION
LH SIDE
1. Before installing front oxygen (A/F) sensor, apply anti-seize compound only to threaded portion of front oxygen (A/F) sensor to make the next removal easier.
Anti-seize compound: SS-30 by JET LUBE
CAUTION: Never apply anti-seize compound to protector of front oxygen (A/F) sensor.
2. Install front oxygen (A/F) sensor.
3. Install front oxygen (A/F) sensor harness to bracket.
4. Install undercover.
5. Lower the vehicle.
6. Connect connector of front oxygen (A/F) sensor, and install connector to bracket.
7. Connect battery ground cable.
RH SIDE
1. Before installing front oxygen (A/F) sensor, apply anti-seize compound only to threaded portion of front oxygen (A/F) sensor to make the next removal easier.
Anti-seize compound: SS-30 by JET LUBE
CAUTION: Never apply anti-seize compound to protector of front oxygen (A/F) sensor.
2. Install front oxygen (A/F) sensor.
3. Install front oxygen (A/F) sensor harness to bracket.
4. Install undercover.
5. Lower the vehicle.
6. Connect connector of front oxygen (A/F) sensor.
7. Connect battery ground cable.