A8L Quattro Sedan W12-6.0L (BSB) (2005)
Oxygen Sensor: Service and Repair
Right Front Heated Oxygen Sensor Before Catalytic Converter
Right Front Heated Oxygen Sensor before Catalytic Converter
Special tools, testers and auxiliary items required
‹› Ring spanner 7-piece set (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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Separate electrical connector - 1 - for Mass Air Flow (MAF) sensor (-G70-).
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Disconnect air duct hose - 4 - at intake manifold.
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Unhook retainer for connections - 2 - and - 3 - at upper part of air filter housing.
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Remove bolts - arrows -.
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Remove upper part of right air filter housing.
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Remove air duct - 1 -.
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Remove the bolts - arrows -.
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Remove lower part of right air filter housing.