S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor 2 in Front of Catalytic Converter and Oxygen Sensor 2 Behind Three Way
Catalytic Converter, Cylinder Bank
Heated Oxygen Sensor 2 in Front of Catalytic Converter and Oxygen Sensor 2 Behind Three Way Catalytic Converter, Cylinder Bank 2
Special tools, testers and auxiliary items required
‹› Ring Spanner 7-Piece Set for Oxygen Sensor (3337)
Removing
‹› During installation, all cable ties must be re-installed at the same location.
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Remove affected electrical connector from bracket and disconnect it.
2
For Heated Oxygen Sensor (HO2S) 2 (G108)
3
For Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131)
‹› The installation location is shown with the engine removed.
Remove the Heated Oxygen Sensor (HO2S) 2 (G108).
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Remove the Heated Oxygen Sensor (HO2S) 2 (G108) - 1 - using a tool from the Ring Spanner 7-Piece Set for Oxygen Sensor (3337).
Remove the Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131).