audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Oxygen Sensor Before Catalytic Converter, Bank 1|Page 4355 > < Oxygen Sensor Before Catalytic Converter, Bank 1|Page 4353
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Oxygen Sensor: Service and Repair
Oxygen Sensor After Catalytic Converter, Bank 2

Oxygen Sensor After Catalytic Converter, Bank 2

Special tools, testers and auxiliary items required

‹› Ring Spanner 7-Piece Set for Oxygen Sensor (3337 )

Removing

‹› All cable ties which are opened or cut open when removing, must be replaced in the same position when installing.

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Pull rear engine cover off - arrows -.

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Remove coolant expansion tank - arrow -.

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Disconnect electrical connection from engine coolant level warning switch (F66) at bottom of coolant reservoir and set aside coolant reservoir
with coolant hoses - 1 - and -  2 - connected.

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Disconnect the electrical harness connector - 1 - for oxygen sensor 2 after catalytic converter (G131) and free up the wiring.

Oxygen Sensor Before Catalytic Converter, Bank 1|Page 4355 > < Oxygen Sensor Before Catalytic Converter, Bank 1|Page 4353