S5 Quattro Coupe V8-4.2L (CAUA) (2009)
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Oxygen Sensor: Service and Repair
Oxygen Sensors Assembly Overview
Oxygen Sensors Assembly Overview
1
Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131) with Oxygen Sensor (O2S) 2 (behind Three Way Catalytic
Converter (TWC)) Heater (Z30)
‹› 50 Nm
‹› Coat new oxygen sensors with an assembly paste
‹› On a used oxygen sensor, only the thread may be coated with hot bolt paste.
‹› Assembly paste or hot bolt paste must not get into the slits on the oxygen sensor body.
‹› Removing and installing. Refer to => [ Heated Oxygen Sensor 2 in Front of Catalytic Converter and Oxygen Sensor 2 Behind Three Way
Catalytic Converter, Cylinder Bank 2 ] See: Heated Oxygen Sensor 2 in Front of Catalytic Converter and Oxygen Sensor 2 Behind Three Way
Catalytic Converter, Cylinder Bank
2
Heated Oxygen Sensor (HO2S) 2 (G108) with Oxygen Sensor (O2S) 2 Heater (Z28)
‹› 50 Nm
‹› Coat new oxygen sensors with an assembly paste
‹› On a used oxygen sensor, only the thread may be coated with hot bolt paste.
‹› Assembly paste or hot bolt paste must not get into the slits on the oxygen sensor body.
