A6 Quattro Sedan V8-4.2L (BVJ) (2007)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way
Catalytic Converter, Cylinder Bank 1
Heated Oxygen Sensor, in Front of Catalytic Converter and Oxygen Sensor, behind Three Way Catalytic Converter, Cylinder Bank 1
Special tools, testers and auxiliary items required
‹› Ring Spanner 7-Piece Set for Oxygen Sensor (3337)
Removing
‹› All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.
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Remove rear engine cover.
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Free up fuel line and vacuum line to EVAP canister on air filter housing and on air guide hose.
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Remove air guide hose from air filter housing by loosening hose clamps - 4 - and - 5 -.
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Place the air guide hose with the connected lines - 2 - and - 3 - on the engine.
‹› Ignore - 1 - and - arrows -.
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Remove affected electrical connector from bracket and disconnect it.
1
Oxygen sensor (G39)
2
Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130)
