A3 Quattro V6-3.2L (BUB) (2008)
Oxygen Sensor: Service and Repair
Oxygen Sensors after Catalytic Converter
Oxygen Sensors after Catalytic Converter
Special tools, testers and auxiliary items required
‹› ring spanner 7-piece set for oxygen sensor (3337 )
Removing
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Remove right vehicle underbody cover - arrows -.
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On right side at vehicle floor, disconnect electrical harness connector - 1 - to Oxygen Sensor (O2S) Behind Three Way Catalytic Converter
(TWC) (G130) or - 2 - to Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131).
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Remove respective connector coupling from bracket and free up electrical wire to respective oxygen sensor.
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Remove Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) - 1 - or Oxygen Sensor (O2S) 2 Behind Three Way
Catalytic Converter (TWC) (G131) - 2 -.