Q7 Quattro V8-4.2L (BAR) (2008)
1. To Heated Oxygen Sensor (HO2S) (G39)
2. To Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
3. To Heated Oxygen Sensor (HO2S) 2 (G108)
4. To Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131)
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Disconnect electrical connector and free up electrical wiring to affected oxygen sensor.
Heated Oxygen Sensor (HO2S) 2 (G108) (left)
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Remove Heated Oxygen Sensor (HO2S) 2 (G108) - 1 -.
Heated Oxygen Sensor (HO2S) (G39) (right)