Cayenne S (9PA) V8-4.5L (2003)
Oxygen Sensor: Service and Repair
Oxygen Sensor In Front of Catalytic Converter
ATTENTION - Danger of burns from hot exhaust system.
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Only remove the exhaust system once it has cooled down.
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Wear protective gloves.
Preliminary work
1. Remove front wheel.
2. Remove front wheel housing liner.
3. Remove engine compartment cover above the oxygen sensor plugs.
Cable Plugs For Oxygen Sensors
4. Disconnect oxygen sensor plug for the oxygen sensor in front of catalytic converter at the right of the water splash panel and unclip the cable from
the holder.
5. Remove air cleaner housing.
6. Release oxygen sensor wire from cable guide and leave it at the oxygen sensor.
Tools and materials
Special Tools - Oxygen Sensors
Accessory for torque wrench:
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Open ring wrench angled various lengths.
Component overview