Q7 Quattro V6-3.6L (BHK) (2007)
Oxygen Sensor: Service and Repair
Oxygen Sensors
Special tools, testers and auxiliary items required
‹› Ring spanner 7-piece set for oxygen sensor (3337)
Removing
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Remove affected electrical connector from bracket on right strut tower and disconnect.
1. To Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) (G130)
2. To Heated Oxygen Sensor (HO2S) (G39)
3. To Oxygen Sensor (O2S) 2 behind Three Way Catalytic Converter (TWC) (G131)
4. To Heated Oxygen Sensor (HO2S) 2 (G108)
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Free up electrical wiring to oxygen sensor.
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Remove affected oxygen sensor with open end wrench (3337/1) and (3337/2):
1. Oxygen Sensor (O2S) 2 behind Three Way Catalytic Converter (TWC) (G131)
2. Heated Oxygen Sensor (HO2S) 2 (G108)