A6 Quattro Wagon V6-3.2L (BKH) (2006)
Oxygen Sensor: Service and Repair
Oxygen Sensor after Catalytic Converter, Bank 1
Oxygen Sensor after Catalytic Converter, Bank 1
Special tools, testers and auxiliary items required
‹› Ring spanner 7-piece set for oxygen sensor (3337)
Removing
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Remove rear engine cover - arrows -.
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Disconnect check valve - 1 - from air duct hose.
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Remove air duct hose, thereby loosening hose clamp - 2 - and opening clips - arrows -.
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Disconnect electrical harness connector - 2 - for Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) (G130) and free up wire.